2928 lines
83 KiB
Text
2928 lines
83 KiB
Text
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########################################################
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# routines to set up weather tiles
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# Thorsten Renk, March 2011
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########################################################
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# function purpose
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#
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# tile_start to execute jobs common for all tiles on startup
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# tile_finished to execute jobs common for all tiles when tile creation is done
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# set_NN_tile to set a weather tile of type NN
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# create_NN to create the cloud configuration NN
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# adjust_p to make sure pressure variation cannot exceed limits between tiles
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# calc_geo to get local Cartesian geometry for latitude conversion
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# get_lat to get latitude from Cartesian coordinates
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# get_lon to get longitude from Cartesian coordinates
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####################################
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# tile setup calls
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####################################
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var tile_start = func {
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# set thread lock
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if (local_weather.thread_flag == 1){setprop(lw~"tmp/thread-status","computing");}
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# set the tile code
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var current_code = getprop(lw~"tiles/code");
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var dir_index = getprop(lw~"tiles/tmp/dir-index");
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props.globals.getNode(lw~"tiles").getChild("tile",dir_index).getNode("code").setValue(current_code);
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# generate a handling array for models
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var array = [];
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append(weather_tile_management.modelArrays,array);
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}
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var tile_finished = func {
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var current_code = getprop(lw~"tiles/code");
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setprop(lw~"clouds/placement-index",0);
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setsize(elat,0); setsize(elon,0); setsize(erad,0);
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var dir_index = getprop(lw~"tiles/tmp/dir-index");
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#props.globals.getNode(lw~"tiles").getChild("tile",dir_index).getNode("code").setValue(current_code);
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local_weather.assemble_effect_array();
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if (local_weather.debug_output_flag == 1)
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{print("Finished setting up tile type ",current_code, " in direction ",dir_index);}
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if (local_weather.thread_flag == 1)
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{setprop(lw~"tmp/thread-status","placing");}
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else # without worker threads, tile generation is complete at this point
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{props.globals.getNode(lw~"tiles").getChild("tile",dir_index).getNode("generated-flag").setValue(2);}
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}
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####################################
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# test tile
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####################################
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var set_4_8_stratus_tile = func {
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setprop(lw~"tiles/code","test");
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tile_start();
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var x = 0.0;
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var y = 0.0;
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var lat = 0.0;
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var lon = 0.0;
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var alpha = getprop(lw~"tmp/tile-orientation-deg");
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var phi = alpha * math.pi/180.0;
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var alt_offset = getprop(lw~"tmp/tile-alt-offset-ft");
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# get tile center coordinates
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var blat = getprop(lw~"tiles/tmp/latitude-deg");
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var blon = getprop(lw~"tiles/tmp/longitude-deg");
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calc_geo(blat);
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# first weather info for tile center (lat, lon, visibility, temperature, dew point, pressure)
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local_weather.set_weather_station(blat, blon, alt_offset, 20000.0, 14.0, 12.0, 29.78);
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#create_2_8_sstratus_streak(blat, blon,5000.0,0.0);
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#create_4_8_cirrocumulus_bank(blat, blon, 6000.0, 0.0);
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#create_4_8_cirrocumulus_streaks(blat, blon, 6000.0, 0.0);
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# create_2_8_cirrocumulus(blat, blon, 6000.0, 0.0);
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#create_detailed_stratocumulus_bank(blat, blon,5000.0+alt_offset,0.0);
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create_4_8_altocumulus_perlucidus(blat, blon, 10000.0, 0.0);
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local_weather.create_effect_volume(3, blat, blon, 20000.0, 7000.0, alpha, 0.0, 80000.0, -1, -1, -1, -1, 15.0, -3,-1);
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# store convective altitude and strength
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append(weather_dynamics.tile_convective_altitude,3000.0);
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append(weather_dynamics.tile_convective_strength,0.0);
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tile_finished();
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}
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####################################
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# high pressure core
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####################################
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var set_high_pressure_core_tile = func {
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setprop(lw~"tiles/code","high_pressure_core");
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tile_start();
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var x = 0.0;
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var y = 0.0;
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var lat = 0.0;
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var lon = 0.0;
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var alpha = getprop(lw~"tmp/tile-orientation-deg");
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var phi = alpha * math.pi/180.0;
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var alt_offset = getprop(lw~"tmp/tile-alt-offset-ft");
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# get tile center coordinates
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var blat = getprop(lw~"tiles/tmp/latitude-deg");
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var blon = getprop(lw~"tiles/tmp/longitude-deg");
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calc_geo(blat);
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# get probabilistic values for the weather parameters
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var vis = 35000.0 + rand() * 20000.0;
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var T = 20.0 + rand() * 10.0;
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var spread = 5.0 + 3.0 * rand();
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var D = T - spread;
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var p = 1025.0 + rand() * 6.0; p = adjust_p(p);
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# and set them at the tile center
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local_weather.set_weather_station(blat, blon, alt_offset, vis, T, D, p * hp_to_inhg);
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var alt = spread * 1000;
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var strength = 0.0;
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var rn = rand();
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if (rn > 0.66)
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{
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# cloud scenario 1: weak cumulus development and blue thermals
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strength = rand() * 0.05;
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local_weather.create_cumosys(blat,blon, alt + alt_offset, get_n(strength), 20000.0);
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# generate a few blue thermals
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if (local_weather.generate_thermal_lift_flag !=0)
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{
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local_weather.generate_thermal_lift_flag = 3;
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strength = rand() * 0.4;
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local_weather.create_cumosys(blat,blon, alt + alt_offset, get_n(strength), 20000.0);
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local_weather.generate_thermal_lift_flag = 2;
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}
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}
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else if (rn > 0.33)
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{
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# cloud scenario 2: some Cirrocumulus patches
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strength = rand() * 0.03;
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local_weather.create_cumosys(blat,blon, alt + alt_offset, get_n(strength), 20000.0);
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create_2_8_cirrocumulus(blat, blon, alt + alt_offset + 5000.0, alpha);
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}
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else if (rn > 0.0)
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{
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# cloud scenario 3: Cirrostratus undulatus over weak cumulus
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strength = rand() * 0.03;
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local_weather.create_cumosys(blat,blon, alt + alt_offset, get_n(strength), 20000.0);
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create_4_8_cirrostratus_undulatus(blat, blon, alt + alt_offset + 32000.0, alpha);
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}
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# store convective altitude and strength
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append(weather_dynamics.tile_convective_altitude,alt);
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append(weather_dynamics.tile_convective_strength,strength);
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tile_finished();
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}
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####################################
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# high pressure
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####################################
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var set_high_pressure_tile = func {
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setprop(lw~"tiles/code","high_pressure");
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tile_start();
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var x = 0.0;
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var y = 0.0;
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var lat = 0.0;
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var lon = 0.0;
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var alpha = getprop(lw~"tmp/tile-orientation-deg");
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var phi = alpha * math.pi/180.0;
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var alt_offset = getprop(lw~"tmp/tile-alt-offset-ft");
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# get tile center coordinates
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var blat = getprop(lw~"tiles/tmp/latitude-deg");
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var blon = getprop(lw~"tiles/tmp/longitude-deg");
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calc_geo(blat);
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# get probabilistic values for the weather parameters
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var vis = 25000.0 + rand() * 15000.0;
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var T = 15.0 + rand() * 10.0;
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var spread = 4.0 + 2.0 * rand();
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var D = T - spread;
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var p = 1019.0 + rand() * 6.0; p = adjust_p(p);
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# and set them at the tile center
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local_weather.set_weather_station(blat, blon, alt_offset, vis, T, D, p * hp_to_inhg);
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var alt = spread * 1000;
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var strength = 0.0;
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var rn = rand();
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if (rn > 0.75)
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{
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# cloud scenario 1: possible Cirrus over Cumulus
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strength = 0.2 + rand() * 0.4;
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local_weather.create_cumosys(blat,blon, alt + alt_offset, get_n(strength), 20000.0);
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# one or two Cirrus clouds
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x = 2000.0 + rand() * 16000.0;
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y = 2.0 * (rand()-0.5) * 18000;
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var path = local_weather.select_cloud_model("Cirrus", "small");
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compat_layer.create_cloud(path, blat + get_lat(x,y,phi), blon+get_lon(x,y,phi), alt + alt_offset + 25000.0 + rand() * 5000.0,alpha);
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if (rand() > 0.5)
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{
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x = -2000.0 - rand() * 16000.0;
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y = 2.0 * (rand()-0.5) * 18000;
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var path = local_weather.select_cloud_model("Cirrus", "small");
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compat_layer.create_cloud(path, blat + get_lat(x,y,phi), blon+get_lon(x,y,phi), alt + alt_offset +25000.0 + rand() * 5000.0,alpha);
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}
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}
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else if (rn > 0.5)
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{
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# cloud scenario 2: Cirrostratus over weak Cumulus
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strength = 0.2 + rand() * 0.2;
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local_weather.create_cumosys(blat,blon, alt + alt_offset, get_n(strength), 20000.0);
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create_2_8_cirrostratus(blat, blon, alt+alt_offset+25000.0, alpha);
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}
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else if (rn > 0.25)
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{
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# cloud scenario 3: Cirrocumulus sheet over Cumulus
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strength = 0.2 + rand() * 0.2;
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local_weather.create_cumosys(blat,blon, alt + alt_offset, get_n(strength), 20000.0);
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x = 2.0 * (rand()-0.5) * 5000;
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y = 2.0 * (rand()-0.5) * 5000;
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var path = local_weather.select_cloud_model("Cirrocumulus", "large");
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compat_layer.create_cloud(path, blat + get_lat(x,y,phi), blon+get_lon(x,y,phi), alt + alt_offset +24000,alpha);
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}
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else if (rn > 0.0)
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{
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# cloud scenario 4: Cirrostratus undulatus over weak Cumulus
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strength = 0.15 + rand() * 0.15;
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local_weather.create_cumosys(blat,blon, alt + alt_offset, get_n(strength), 20000.0);
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create_4_8_cirrostratus_undulatus(blat, blon, alt + alt_offset + 25000.0, alpha);
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}
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# store convective altitude and strength
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append(weather_dynamics.tile_convective_altitude,alt);
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append(weather_dynamics.tile_convective_strength,strength);
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tile_finished();
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}
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####################################
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# high pressure border
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####################################
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var set_high_pressure_border_tile = func {
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setprop(lw~"tiles/code","high_pressure_border");
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tile_start();
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var x = 0.0;
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var y = 0.0;
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var lat = 0.0;
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var lon = 0.0;
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var alpha = getprop(lw~"tmp/tile-orientation-deg");
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var phi = alpha * math.pi/180.0;
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var alt_offset = getprop(lw~"tmp/tile-alt-offset-ft");
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# get tile center coordinates
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var blat = getprop(lw~"tiles/tmp/latitude-deg");
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var blon = getprop(lw~"tiles/tmp/longitude-deg");
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calc_geo(blat);
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# get probabilistic values for the weather parameters
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var vis = 20000.0 + rand() * 12000.0;
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var T = 12.0 + rand() * 10.0;
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var spread = 3.0 + 2.0 * rand();
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var D = T - spread;
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var p = 1013.0 + rand() * 6.0; p = adjust_p(p);
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# and set them at the tile center
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local_weather.set_weather_station(blat, blon, alt_offset, vis, T, D, p * hp_to_inhg);
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# now a random selection of different possible cloud configuration scenarios
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var alt = spread * 1000;
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var strength = 0.0;
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var rn = rand();
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if (rn > 0.875)
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{
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# cloud scenario 1: Altocumulus patch over weak Cumulus
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strength = 0.1 + rand() * 0.1;
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local_weather.create_cumosys(blat,blon, alt + alt_offset, get_n(strength), 20000.0);
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x = 2.0 * (rand()-0.5) * 5000;
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y = 2.0 * (rand()-0.5) * 5000;
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local_weather.create_streak("Altocumulus",blat+get_lat(x,y,phi), blon+get_lon(x,y,phi), 12000.0+alt+alt_offset,1500.0,30,1000.0,0.2,1200.0,30,1000.0,0.2,1200.0,alpha ,1.0);
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}
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else if (rn > 0.750)
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{
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# cloud scenario 2: Altocumulus streaks
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strength = 0.15 + rand() * 0.2;
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local_weather.create_cumosys(blat,blon, alt + alt_offset, get_n(strength), 20000.0);
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x = 2.0 * (rand()-0.5) * 10000;
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y = 2.0 * (rand()-0.5) * 10000;
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local_weather.create_streak("Altocumulus",blat+get_lat(x,y,phi), blon+get_lon(x,y,phi), 12000.0+alt+alt_offset,1500.0,25,700.0,0.2,800.0,10,700.0,0.2,800.0,alpha ,1.4);
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x = 2.0 * (rand()-0.5) * 10000;
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y = 2.0 * (rand()-0.5) * 10000;
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local_weather.create_streak("Altocumulus",blat+get_lat(x,y,phi), blon+get_lon(x,y,phi), 12000.0+alt+alt_offset,1500.0,22,750.0,0.2,1000.0,8,750.0,0.2,1000.0,alpha ,1.1);
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}
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else if (rn > 0.625)
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{
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# cloud scenario 3: Cirrus
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strength = 0.1 + rand() * 0.1;
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local_weather.create_cumosys(blat,blon, alt + alt_offset, get_n(strength), 20000.0);
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x = 2.0 * (rand()-0.5) * 3000;
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y = 2.0 * (rand()-0.5) * 3000;
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local_weather.create_streak("Cirrus",blat+get_lat(x,y,phi), blon+get_lon(x,y,phi), 22000.0+alt+alt_offset,1500.0,3,9000.0,0.0, 800.0, 1,8000.0,0.0,800,0,alpha ,1.0);
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}
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else if (rn > 0.5)
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{
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# cloud scenario 4: Cumulonimbus banks
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strength = 0.7 + rand() * 0.3;
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local_weather.create_cumosys(blat,blon, alt + alt_offset, get_n(strength), 20000.0);
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for (var i = 0; i < 3; i = i + 1)
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{
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x = 2.0 * (rand()-0.5) * 16000;
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y = 2.0 * (rand()-0.5) * 16000;
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create_cloud_bank("Cumulonimbus", blat+get_lat(x,y,phi), blon+get_lon(x,y,phi), alt+alt_offset, 1600.0, 800.0, 3000.0, 9, alpha);
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}
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}
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else if (rn > 0.375)
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{
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# cloud scenario 5: scattered Stratus
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strength = 0.4 + rand() * 0.2;
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local_weather.create_cumosys(blat,blon, alt + alt_offset, get_n(strength), 20000.0);
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var size_offset = 0.5 * m_to_ft * local_weather.cloud_vertical_size_map["Stratus_structured"];
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local_weather.create_streak("Stratus (structured)",blat, blon, alt+6000.0+alt_offset+size_offset,1000.0,18,0.0,0.3,20000.0,18,0.0,0.3,20000.0,0.0,1.0);
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}
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else if (rn > 0.250)
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{
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# cloud scenario 6: Cirrocumulus sheets
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strength = 0.2 + rand() * 0.2;
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local_weather.create_cumosys(blat,blon, alt + alt_offset, get_n(strength), 20000.0);
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for (var i = 0; i < 2; i = i + 1)
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{
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x = 2.0 * (rand()-0.5) * 10000;
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y = -6000 + i * 12000 + 2.0 * (rand()-0.5) * 1000;
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var beta = rand() * 90;
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var alt_variation = rand() * 2000;
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var path = local_weather.select_cloud_model("Cirrocumulus", "large");
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compat_layer.create_cloud(path, blat + get_lat(x,y,phi), blon+get_lon(x,y,phi), alt + alt_offset +20000+ alt_variation,alpha+ beta);
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}
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}
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else if (rn > 0.125)
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{
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# cloud scenario 7: Thin Cirrocumulus sheets over weak Cumulus
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strength = 0.05 + rand() * 0.1;
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local_weather.create_cumosys(blat,blon, alt + alt_offset, get_n(strength), 20000.0);
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create_4_8_cirrocumulus_streaks(blat, blon, alt + 6000.0 + alt_offset, alpha);
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}
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else if (rn > 0.0)
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{
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# cloud scenario 8: Altocumulus perlucidus
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create_4_8_altocumulus_perlucidus(blat, blon, alt + 10000.0 + alt_offset, alpha);
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}
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# store convective altitude and strength
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append(weather_dynamics.tile_convective_altitude,alt);
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append(weather_dynamics.tile_convective_strength,strength);
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tile_finished();
|
|
|
|
}
|
|
|
|
####################################
|
|
# low pressure border
|
|
####################################
|
|
|
|
var set_low_pressure_border_tile = func {
|
|
|
|
setprop(lw~"tiles/code","low_pressure_border");
|
|
|
|
tile_start();
|
|
|
|
var x = 0.0;
|
|
var y = 0.0;
|
|
var lat = 0.0;
|
|
var lon = 0.0;
|
|
|
|
var alpha = getprop(lw~"tmp/tile-orientation-deg");
|
|
var phi = alpha * math.pi/180.0;
|
|
|
|
if (getprop(lw~"tmp/presampling-flag") == 0)
|
|
{var alt_offset = getprop(lw~"tmp/tile-alt-offset-ft");}
|
|
else
|
|
{var alt_offset = getprop(lw~"tmp/tile-alt-layered-ft");}
|
|
|
|
|
|
# get tile center coordinates
|
|
|
|
var blat = getprop(lw~"tiles/tmp/latitude-deg");
|
|
var blon = getprop(lw~"tiles/tmp/longitude-deg");
|
|
calc_geo(blat);
|
|
|
|
# get probabilistic values for the weather parameters
|
|
|
|
var vis = 12000.0 + rand() * 9000.0;
|
|
var T = 10.0 + rand() * 10.0;
|
|
var spread = 2.0 + 2.0 * rand();
|
|
var D = T - spread;
|
|
var p = 1007.0 + rand() * 6.0; p = adjust_p(p);
|
|
|
|
# and set them at the tile center
|
|
local_weather.set_weather_station(blat, blon, alt_offset, vis, T, D, p * hp_to_inhg);
|
|
|
|
# altitude for the lowest layer
|
|
var alt = spread * 1000.0;
|
|
var strength = 0.0;
|
|
|
|
# now a random selection of different possible cloud configuration scenarios
|
|
|
|
var rn = rand();
|
|
|
|
if (rn > 0.875)
|
|
{
|
|
# cloud scenario 1: a low 4/8 stratus patches, thin patches above
|
|
|
|
alt = alt + local_weather.cloud_vertical_size_map["Stratus"] * 0.5 * m_to_ft;
|
|
create_4_8_stratus_patches(blat, blon, alt+alt_offset,alpha);
|
|
create_4_8_tstratus_patches(blat, blon, alt+alt_offset+6000,alpha);
|
|
}
|
|
else if (rn > 0.75)
|
|
{
|
|
# cloud scenario 2: a low 4/8 undulatus, thin patches above
|
|
|
|
alt = alt + local_weather.cloud_vertical_size_map["Stratus"] * 0.5 * m_to_ft;
|
|
create_4_8_sstratus_undulatus(blat, blon, alt+alt_offset,alpha);
|
|
create_2_8_tstratus(blat, blon, alt+alt_offset+7000,alpha);
|
|
}
|
|
else if (rn > 0.625)
|
|
{
|
|
# cloud scenario 3: low Stratocumulus
|
|
|
|
# alt = alt + local_weather.cloud_vertical_size_map["Cumulus"] * 0.5 * m_to_ft;
|
|
create_detailed_stratocumulus_bank(blat, blon, alt+alt_offset,alpha);
|
|
create_2_8_sstratus(blat, blon, alt+alt_offset+6000,alpha);
|
|
create_2_8_tstratus(blat, blon, alt+alt_offset+9000,alpha);
|
|
}
|
|
else if (rn > 0.5)
|
|
{
|
|
# cloud scenario 4: dense low Stratocumulus
|
|
|
|
# alt = alt + local_weather.cloud_vertical_size_map["Cumulus"] * 0.5 * m_to_ft;
|
|
create_detailed_stratocumulus_bank(blat, blon, alt+alt_offset,alpha);
|
|
create_detailed_stratocumulus_bank(blat, blon, alt+alt_offset,alpha);
|
|
create_2_8_sstratus(blat, blon, alt+alt_offset+8000,alpha);
|
|
}
|
|
else if (rn > 375)
|
|
{
|
|
# cloud scenario 5: Cirrocumulus over 4/8 Stratus
|
|
|
|
alt = alt + local_weather.cloud_vertical_size_map["Stratus"] * 0.5 * m_to_ft;
|
|
create_4_8_sstratus_patches(blat, blon, alt+alt_offset,alpha);
|
|
|
|
create_4_8_cirrocumulus_bank(blat, blon, alt+alt_offset + 12000.0, alpha);
|
|
}
|
|
else if (rn > 0.250)
|
|
{
|
|
# cloud scenario 6: Cirrostratus over 4/8 Stratus undulatus
|
|
|
|
alt = alt + local_weather.cloud_vertical_size_map["Stratus"] * 0.5 * m_to_ft;
|
|
|
|
create_6_8_stratus_undulatus(blat, blon, alt+alt_offset,alpha);
|
|
|
|
create_4_8_cirrostratus_undulatus(blat, blon, alt+alt_offset+24000,alpha);
|
|
}
|
|
else if (rn > 0.125)
|
|
{
|
|
# cloud scenario 7: thin stratus
|
|
|
|
create_4_8_alttstratus_streaks(blat, blon, alt+alt_offset,alpha);
|
|
|
|
create_2_8_sstratus(blat, blon, alt+alt_offset+6000,alpha);
|
|
}
|
|
else if (rn > 0.0)
|
|
{
|
|
# cloud scenario 8: thin stratus
|
|
|
|
create_4_8_alttstratus_patches(blat, blon, alt+alt_offset,alpha);
|
|
|
|
create_4_8_cirrostratus_undulatus(blat, blon, alt+alt_offset+25000,alpha);
|
|
}
|
|
|
|
# store convective altitude and strength
|
|
|
|
append(weather_dynamics.tile_convective_altitude,alt);
|
|
append(weather_dynamics.tile_convective_strength,strength);
|
|
|
|
tile_finished();
|
|
|
|
}
|
|
|
|
####################################
|
|
# low pressure
|
|
####################################
|
|
|
|
var set_low_pressure_tile = func {
|
|
|
|
setprop(lw~"tiles/code","low_pressure");
|
|
|
|
tile_start();
|
|
|
|
var x = 0.0;
|
|
var y = 0.0;
|
|
var lat = 0.0;
|
|
var lon = 0.0;
|
|
|
|
var alpha = getprop(lw~"tmp/tile-orientation-deg");
|
|
var phi = alpha * math.pi/180.0;
|
|
|
|
|
|
if (getprop(lw~"tmp/presampling-flag") == 0)
|
|
{var alt_offset = getprop(lw~"tmp/tile-alt-offset-ft");}
|
|
else
|
|
{var alt_offset = getprop(lw~"tmp/tile-alt-layered-ft");}
|
|
|
|
# get tile center coordinates
|
|
|
|
var blat = getprop(lw~"tiles/tmp/latitude-deg");
|
|
var blon = getprop(lw~"tiles/tmp/longitude-deg");
|
|
calc_geo(blat);
|
|
|
|
# get probabilistic values for the weather parameters
|
|
|
|
var vis = 8000.0 + rand() * 8000.0;
|
|
var T = 5.0 + rand() * 10.0;
|
|
var spread = 1.0 + 2.0 * rand();
|
|
var D = T - spread;
|
|
var p = 1001.0 + rand() * 6.0; p = adjust_p(p);
|
|
|
|
|
|
|
|
# and set them at the tile center
|
|
local_weather.set_weather_station(blat, blon, alt_offset, vis, T, D, p * hp_to_inhg);
|
|
|
|
# altitude for the lowest layer
|
|
var alt = spread * 1000.0;
|
|
var strength = 0.0;
|
|
|
|
var rn = rand();
|
|
|
|
|
|
|
|
if (rn > 0.75)
|
|
{
|
|
|
|
# cloud scenario 1: two patches of Nimbostratus with precipitation
|
|
# overhead broken stratus layers
|
|
# cloud count 1050
|
|
|
|
x = 2.0 * (rand()-0.5) * 11000.0;
|
|
y = 2.0 * (rand()-0.5) * 11000.0;
|
|
var beta = rand() * 360.0;
|
|
|
|
local_weather.create_layer("Nimbus", blat+get_lat(x,y,phi), blon+get_lon(x,y,phi), alt+alt_offset, 500.0, 12000.0, 7000.0, beta, 1.0, 0.2, 1, 1.0);
|
|
local_weather.create_effect_volume(2, blat+get_lat(x,y,phi), blon+get_lon(x,y,phi), 10000.0, 6000.0, beta, 0.0, alt + alt_offset, 5000.0, 0.3, -1, -1, -1,0,-1 );
|
|
local_weather.create_effect_volume(2, blat+get_lat(x,y,phi), blon+get_lon(x,y,phi), 9000.0, 5000.0, beta, 0.0, alt+alt_offset-300.0, 1500.0, 0.5, -1, -1, -1,0,-1 );
|
|
|
|
x = 2.0 * (rand()-0.5) * 11000.0;
|
|
y = 2.0 * (rand()-0.5) * 11000.0;
|
|
var beta = rand() * 360.0;
|
|
|
|
local_weather.create_layer("Nimbus", blat+get_lat(x,y,phi), blon+get_lon(x,y,phi), alt+alt_offset, 500.0, 10000.0, 6000.0, beta, 1.0, 0.2, 1, 1.0);
|
|
local_weather.create_effect_volume(2, blat+get_lat(x,y,phi), blon+get_lon(x,y,phi), 9000.0, 5000.0, beta, 0.0, alt + alt_offset, 5000.0, 0.3, -1, -1, -1,0 ,-1);
|
|
local_weather.create_effect_volume(2, blat+get_lat(x,y,phi), blon+get_lon(x,y,phi), 8000.0, 4000.0, beta, 0.0, alt+alt_offset-300.0, 1500.0, 0.5, -1, -1, -1,0,-1 );
|
|
|
|
create_4_8_sstratus_undulatus(blat, blon, alt+alt_offset +3000.0, alpha);
|
|
create_2_8_tstratus(blat, blon, alt+alt_offset +6000.0, alpha);
|
|
}
|
|
else if (rn >0.5)
|
|
{
|
|
# cloud scenario 2: 8/8 Stratus with light precipitation
|
|
# above broken cover
|
|
# cloud count 1180
|
|
|
|
alt = alt + local_weather.cloud_vertical_size_map["Stratus"] * 0.5 * m_to_ft;
|
|
create_8_8_stratus(blat, blon, alt+alt_offset,alpha);
|
|
local_weather.create_effect_volume(3, blat, blon, 18000.0, 18000.0, 0.0, 0.0, 1800.0, 8000.0, -1, -1, -1, -1, 0,-1);
|
|
local_weather.create_effect_volume(3, blat, blon, 14000.0, 14000.0, 0.0, 0.0, 1500.0, 6000.0, 0.1, -1, -1, -1,0,-1 );
|
|
create_2_8_sstratus(blat, blon, alt+alt_offset+3000,alpha);
|
|
}
|
|
else if (rn >0.25)
|
|
{
|
|
# cloud scenario 3: multiple broken layers
|
|
# cloud count 1350
|
|
|
|
alt = alt + local_weather.cloud_vertical_size_map["Stratus"] * 0.5 * m_to_ft;
|
|
create_4_8_stratus(blat, blon, alt+alt_offset,alpha);
|
|
create_4_8_stratus_patches(blat, blon, alt+alt_offset+3000,alpha);
|
|
create_4_8_sstratus_undulatus(blat, blon, alt+alt_offset+6000,alpha);
|
|
create_2_8_tstratus(blat, blon, alt+alt_offset+8000,alpha);
|
|
}
|
|
else if (rn >0.0)
|
|
{
|
|
# cloud scenario 4: a low 6/8 layer and some clouds above
|
|
# cloud count 650
|
|
|
|
alt = alt + local_weather.cloud_vertical_size_map["Stratus"] * 0.5 * m_to_ft;
|
|
create_6_8_stratus(blat, blon, alt+alt_offset,alpha);
|
|
create_2_8_sstratus(blat, blon, alt+alt_offset+6000,alpha);
|
|
}
|
|
|
|
# store convective altitude and strength
|
|
|
|
append(weather_dynamics.tile_convective_altitude,alt);
|
|
append(weather_dynamics.tile_convective_strength,strength);
|
|
|
|
tile_finished();
|
|
|
|
}
|
|
|
|
|
|
####################################
|
|
# low pressure core
|
|
####################################
|
|
|
|
var set_low_pressure_core_tile = func {
|
|
|
|
setprop(lw~"tiles/code","low_pressure_core");
|
|
|
|
tile_start();
|
|
|
|
var x = 0.0;
|
|
var y = 0.0;
|
|
var lat = 0.0;
|
|
var lon = 0.0;
|
|
|
|
var alpha = getprop(lw~"tmp/tile-orientation-deg");
|
|
var phi = alpha * math.pi/180.0;
|
|
|
|
if (getprop(lw~"tmp/presampling-flag") == 0)
|
|
{var alt_offset = getprop(lw~"tmp/tile-alt-offset-ft");}
|
|
else
|
|
{var alt_offset = getprop(lw~"tmp/tile-alt-layered-ft");}
|
|
|
|
# get tile center coordinates
|
|
|
|
var blat = getprop(lw~"tiles/tmp/latitude-deg");
|
|
var blon = getprop(lw~"tiles/tmp/longitude-deg");
|
|
calc_geo(blat);
|
|
|
|
# get probabilistic values for the weather parameters
|
|
|
|
var vis = 5000.0 + rand() * 5000.0;
|
|
var T = 3.0 + rand() * 7.0;
|
|
var spread = 1.0 + 1.0 * rand();
|
|
var D = T - spread;
|
|
var p = 995.0 + rand() * 6.0; p = adjust_p(p);
|
|
|
|
# and set them at the tile center
|
|
local_weather.set_weather_station(blat, blon, alt_offset, vis, T, D, p * hp_to_inhg);
|
|
|
|
|
|
# set a closed Nimbostratus layer
|
|
|
|
var alt = spread * 1000.0 + local_weather.cloud_vertical_size_map["Nimbus"] * 0.5 * m_to_ft;
|
|
var strength = 0.0;
|
|
|
|
|
|
create_8_8_nimbus(blat, blon, alt+alt_offset, alpha);
|
|
|
|
# and a precipitation layer below, more rain in the center of the tile
|
|
|
|
local_weather.create_effect_volume(3, blat, blon, 20000.0, 20000.0, alpha, 0.0, alt + alt_offset, 3000.0, 0.3, -1, -1, -1,0 ,0.95);
|
|
local_weather.create_effect_volume(3, blat , blon, 16000.0, 16000.0, alpha, 0.0, alt + alt_offset - 300.0, 1500.0, 0.5, -1, -1, -1,0 ,0.8);
|
|
|
|
|
|
# and some broken Stratus cover above
|
|
|
|
var rn = rand();
|
|
|
|
if (rn > 0.5){create_4_8_stratus_patches(blat, blon, alt+alt_offset+3000.0, alpha);}
|
|
else {create_4_8_stratus(blat, blon, alt+alt_offset+3000.0, alpha);}
|
|
|
|
# store convective altitude and strength
|
|
|
|
append(weather_dynamics.tile_convective_altitude,alt);
|
|
append(weather_dynamics.tile_convective_strength,strength);
|
|
|
|
tile_finished();
|
|
|
|
}
|
|
|
|
|
|
####################################
|
|
# cold sector
|
|
####################################
|
|
|
|
var set_cold_sector_tile = func {
|
|
|
|
setprop(lw~"tiles/code","cold_sector");
|
|
|
|
tile_start();
|
|
|
|
var x = 0.0;
|
|
var y = 0.0;
|
|
var lat = 0.0;
|
|
var lon = 0.0;
|
|
|
|
var alpha = getprop(lw~"tmp/tile-orientation-deg");
|
|
var phi = alpha * math.pi/180.0;
|
|
var alt_offset = getprop(lw~"tmp/tile-alt-offset-ft");
|
|
|
|
# get tile center coordinates
|
|
|
|
var blat = getprop(lw~"tiles/tmp/latitude-deg");
|
|
var blon = getprop(lw~"tiles/tmp/longitude-deg");
|
|
calc_geo(blat);
|
|
|
|
# get probabilistic values for the weather parameters
|
|
|
|
var vis = 35000.0 + rand() * 20000.0;
|
|
var T = 8.0 + rand() * 8.0;
|
|
var spread = 3.0 + 2.0 * rand();
|
|
var D = T - spread;
|
|
var p = 1005.0 + rand() * 10.0; p = adjust_p(p);
|
|
|
|
# and set them at the tile center
|
|
local_weather.set_weather_station(blat, blon, alt_offset, vis, T, D, p * hp_to_inhg);
|
|
|
|
# altitude for the lowest layer
|
|
var alt = spread * 1000.0;
|
|
var strength = 0.0;
|
|
|
|
var rn = rand();
|
|
|
|
#rn = 0.1;
|
|
|
|
if (rn > 0.5)
|
|
{
|
|
# cloud scenario 1: strong Cumulus development
|
|
strength = 0.8 + rand() * 0.2;
|
|
local_weather.create_cumosys(blat,blon, alt + alt_offset, get_n(strength), 20000.0);
|
|
}
|
|
|
|
else if (rn > 0.0)
|
|
{
|
|
# cloud scenario 2: Cirrocumulus sheets over Cumulus
|
|
|
|
strength = 0.6 + rand() * 0.2;
|
|
local_weather.create_cumosys(blat,blon, alt + alt_offset, get_n(strength), 20000.0);
|
|
|
|
for (var i = 0; i < 2; i = i + 1)
|
|
{
|
|
x = 2.0 * (rand()-0.5) * 10000;
|
|
y = -6000 + i * 12000 + 2.0 * (rand()-0.5) * 1000;
|
|
|
|
var beta = rand() * 90;
|
|
var alt_variation = rand() * 2000;
|
|
|
|
var path = local_weather.select_cloud_model("Cirrocumulus", "large");
|
|
compat_layer.create_cloud(path, blat + get_lat(x,y,phi), blon+get_lon(x,y,phi), alt + alt_offset +20000+ alt_variation,alpha+ beta);
|
|
}
|
|
|
|
}
|
|
|
|
#local_weather.create_effect_volume(3, blat, blon, 20000.0, 7000.0, alpha, 0.0, 80000.0, -1, -1, -1, -1, 15.0, -3,-1);
|
|
|
|
# store convective altitude and strength
|
|
|
|
append(weather_dynamics.tile_convective_altitude,alt);
|
|
append(weather_dynamics.tile_convective_strength,strength);
|
|
|
|
tile_finished();
|
|
|
|
}
|
|
|
|
|
|
####################################
|
|
# Warm sector
|
|
####################################
|
|
|
|
var set_warm_sector_tile = func {
|
|
|
|
setprop(lw~"tiles/code","warm_sector");
|
|
|
|
tile_start();
|
|
|
|
var x = 0.0;
|
|
var y = 0.0;
|
|
var lat = 0.0;
|
|
var lon = 0.0;
|
|
|
|
var alpha = getprop(lw~"tmp/tile-orientation-deg");
|
|
var phi = alpha * math.pi/180.0;
|
|
var alt_offset = getprop(lw~"tmp/tile-alt-offset-ft");
|
|
|
|
# get tile center coordinates
|
|
|
|
var blat = getprop(lw~"tiles/tmp/latitude-deg");
|
|
var blon = getprop(lw~"tiles/tmp/longitude-deg");
|
|
calc_geo(blat);
|
|
|
|
# get probabilistic values for the weather parameters
|
|
|
|
var vis = 10000.0 + rand() * 8000.0;
|
|
var T = 16.0 + rand() * 10.0;
|
|
var spread = 2.0 + 2.0 * rand();
|
|
var D = T - spread;
|
|
var p = 1005.0 + rand() * 10.0; p = adjust_p(p);
|
|
|
|
# and set them at the tile center
|
|
local_weather.set_weather_station(blat, blon, alt_offset, vis, T, D, p * hp_to_inhg);
|
|
|
|
# altitude for the lowest layer
|
|
var alt = spread * 1000.0;
|
|
var strength = 0.0;
|
|
|
|
var rn = rand();
|
|
|
|
|
|
if (rn > 0.8)
|
|
{
|
|
# cloud scenario 1: weak Cumulus development, some Cirrostratus
|
|
strength = 0.3 + rand() * 0.2;
|
|
local_weather.create_cumosys(blat,blon, alt + alt_offset, get_n(strength), 20000.0);
|
|
create_4_8_cirrostratus_patches(blat, blon, alt+alt_offset+25000.0, alpha);
|
|
}
|
|
else if (rn > 0.6)
|
|
{
|
|
# cloud scenario 2: weak Cumulus development under Altostratus streaks
|
|
strength = 0.1 + rand() * 0.1;
|
|
local_weather.create_cumosys(blat,blon, alt + alt_offset, get_n(strength), 20000.0);
|
|
|
|
var size_offset = 0.5 * m_to_ft * local_weather.cloud_vertical_size_map["Stratus_structured"];
|
|
|
|
create_2_8_sstratus_streak(blat, blon, alt+alt_offset + size_offset + 2000.0, alpha);
|
|
create_2_8_sstratus_streak(blat, blon, alt+alt_offset + size_offset + 4000.0, alpha);
|
|
}
|
|
else if (rn > 0.4)
|
|
{
|
|
# cloud scenario 3: Cirrocumulus bank
|
|
strength = 0.05 + rand() * 0.05;
|
|
local_weather.create_cumosys(blat,blon, alt + alt_offset, get_n(strength), 20000.0);
|
|
|
|
var size_offset = 0.5 * m_to_ft * local_weather.cloud_vertical_size_map["Cirrocumulus"];
|
|
|
|
create_4_8_cirrocumulus_bank(blat, blon, alt+alt_offset + size_offset + 7000.0, alpha);
|
|
|
|
}
|
|
else if (rn > 0.2)
|
|
{
|
|
# cloud scenario 4: Cirrocumulus undulatus
|
|
strength = 0.05 + rand() * 0.05;
|
|
local_weather.create_cumosys(blat,blon, alt + alt_offset, get_n(strength), 20000.0);
|
|
|
|
var size_offset = 0.5 * m_to_ft * local_weather.cloud_vertical_size_map["Cirrocumulus"];
|
|
|
|
create_4_8_cirrocumulus_undulatus(blat, blon, alt+alt_offset + size_offset + 6000.0, alpha);
|
|
}
|
|
|
|
else if (rn > 0.0)
|
|
{
|
|
# cloud scenario 5: weak Cumulus development under scattered Altostratus
|
|
|
|
strength = 0.15 + rand() * 0.15;
|
|
local_weather.create_cumosys(blat,blon, alt + alt_offset, get_n(strength), 20000.0);
|
|
|
|
var size_offset = 0.5 * m_to_ft * local_weather.cloud_vertical_size_map["Stratus_structured"];
|
|
|
|
local_weather.create_streak("Stratus (structured)",blat, blon, alt+4000.0+alt_offset+size_offset,1000.0,14,0.0,0.3,20000.0,14,0.0,0.3,20000.0,0.0,1.0);
|
|
|
|
}
|
|
|
|
# store convective altitude and strength
|
|
|
|
append(weather_dynamics.tile_convective_altitude,alt);
|
|
append(weather_dynamics.tile_convective_strength,strength);
|
|
|
|
tile_finished();
|
|
|
|
}
|
|
|
|
|
|
|
|
####################################
|
|
# Tropical weather
|
|
####################################
|
|
|
|
var set_tropical_weather_tile = func {
|
|
|
|
setprop(lw~"tiles/code","tropical_weather");
|
|
|
|
tile_start();
|
|
|
|
var x = 0.0;
|
|
var y = 0.0;
|
|
var lat = 0.0;
|
|
var lon = 0.0;
|
|
|
|
var sec_to_rad = 2.0 * math.pi/86400; # conversion factor for sinusoidal dependence on daytime
|
|
|
|
# get the local time of the day in seconds
|
|
|
|
var t = getprop("sim/time/utc/day-seconds");
|
|
t = t + getprop("sim/time/local-offset");
|
|
|
|
var alpha = getprop(lw~"tmp/tile-orientation-deg");
|
|
var phi = alpha * math.pi/180.0;
|
|
var alt_offset = getprop(lw~"tmp/tile-alt-offset-ft");
|
|
|
|
# get tile center coordinates
|
|
|
|
var blat = getprop(lw~"tiles/tmp/latitude-deg");
|
|
var blon = getprop(lw~"tiles/tmp/longitude-deg");
|
|
calc_geo(blat);
|
|
|
|
# get probabilistic values for the weather parameters
|
|
|
|
var vis = 10000.0 + rand() * 10000.0;
|
|
var T = 20.0 + rand() * 15.0;
|
|
var spread = 3.0 + 2.0 * rand();
|
|
var D = T - spread;
|
|
var p = 970 + rand() * 10.0; p = adjust_p(p);
|
|
|
|
# first weather info for tile center (lat, lon, visibility, temperature, dew point, pressure)
|
|
|
|
local_weather.set_weather_station(blat, blon, alt_offset, vis, T, D, p * hp_to_inhg);
|
|
|
|
# altitude for the lowest layer
|
|
var alt = spread * 1000.0;
|
|
var strength = 0.0;
|
|
|
|
# tropical weather has a strong daily variation, call thunderstorm only in the correct afternoon time window
|
|
|
|
var t_factor = 0.5 * (1.0-math.cos((t * sec_to_rad)-0.9));
|
|
|
|
var rn = rand();
|
|
|
|
if (rn > (t_factor * t_factor * t_factor * t_factor)) # call a normal convective cloud system
|
|
{
|
|
strength = 1.0 + rand() * 0.2;
|
|
local_weather.create_cumosys(blat,blon, alt + alt_offset, get_n(strength), 20000.0);
|
|
}
|
|
|
|
else
|
|
{
|
|
|
|
# a random selection of different possible thunderstorm cloud configuration scenarios
|
|
|
|
rn = rand();
|
|
|
|
if (rn > 0.2)
|
|
{
|
|
# cloud scenario 1: 1-2 medium sized storms
|
|
|
|
x = 2.0 * (rand()-0.5) * 12000;
|
|
y = 2.0 * (rand()-0.5) * 12000;
|
|
|
|
if (rand() > 0.6)
|
|
{create_medium_thunderstorm(blat +get_lat(x,y,phi), blon + get_lon(x,y,phi), alt+alt_offset, alpha);}
|
|
else
|
|
{create_small_thunderstorm(blat +get_lat(x,y,phi), blon + get_lon(x,y,phi), alt+alt_offset, alpha);}
|
|
|
|
if (rand() > 0.5) # we do a second thunderstorm
|
|
{
|
|
x = 2.0 * (rand()-0.5) * 12000;
|
|
y = 2.0 * (rand()-0.5) * 12000;
|
|
if (rand() > 0.8)
|
|
{create_medium_thunderstorm(blat+get_lat(x,y,phi), blon+get_lon(x,y,phi), alt+alt_offset, alpha);}
|
|
else
|
|
{create_small_thunderstorm(blat+get_lat(x,y,phi), blon+get_lon(x,y,phi), alt+alt_offset, alpha);}
|
|
}
|
|
}
|
|
else if (rn > 0.0)
|
|
{
|
|
# cloud scenario 2: Single big storm
|
|
|
|
x = 2.0 * (rand()-0.5) * 12000;
|
|
y = 2.0 * (rand()-0.5) * 12000;
|
|
|
|
create_big_thunderstorm(blat+get_lat(x,y,phi), blon+get_lon(x,y,phi), alt+alt_offset, alpha);
|
|
}
|
|
|
|
|
|
# the convective layer
|
|
|
|
var strength = 0.5 * t_factor;
|
|
var n = int(4000 * strength) * 0.2;
|
|
local_weather.cumulus_exclusion_layer(blat, blon, alt+alt_offset, n, 20000.0, 20000.0, alpha, 0.3,1.4 , size(elat), elat, elon, erad);
|
|
local_weather.cumulus_exclusion_layer(blat, blon, alt+alt_offset, n, 20000.0, 20000.0, alpha, 1.9,2.5 , size(elat), elat, elon, erad);
|
|
|
|
# some turbulence in the convection layer
|
|
|
|
local_weather.create_effect_volume(3, blat, blon, 20000.0, 20000.0, alpha, 0.0, alt+3000.0+alt_offset, -1, -1, -1, 0.4, -1,0 ,-1);
|
|
|
|
} # end thundercloud placement
|
|
|
|
# store convective altitude and strength
|
|
|
|
append(weather_dynamics.tile_convective_altitude,alt);
|
|
append(weather_dynamics.tile_convective_strength,strength);
|
|
|
|
tile_finished();
|
|
|
|
}
|
|
|
|
|
|
####################################
|
|
# Coldfront
|
|
####################################
|
|
|
|
|
|
var set_coldfront_tile = func {
|
|
|
|
setprop(lw~"tiles/code","coldfront");
|
|
|
|
tile_start();
|
|
|
|
var x = 0.0;
|
|
var y = 0.0;
|
|
var lat = 0.0;
|
|
var lon = 0.0;
|
|
|
|
|
|
|
|
var alpha = getprop(lw~"tmp/tile-orientation-deg");
|
|
var phi = alpha * math.pi/180.0;
|
|
var alt_offset = getprop(lw~"tmp/tile-alt-offset-ft");
|
|
|
|
# get tile center coordinates
|
|
|
|
var blat = getprop(lw~"tiles/tmp/latitude-deg");
|
|
var blon = getprop(lw~"tiles/tmp/longitude-deg");
|
|
calc_geo(blat);
|
|
|
|
# get probabilistic values for the weather parameters
|
|
|
|
var vis = 20000.0 + rand() * 10000.0;
|
|
var T = 20.0 + rand() * 8.0;
|
|
var spread = 3.0 + 2.0 * rand();
|
|
var D = T - spread;
|
|
var p = 1005 + rand() * 10.0; p = adjust_p(p);
|
|
|
|
# first weather info for tile (lat, lon, visibility, temperature, dew point, pressure)
|
|
|
|
# after the front
|
|
|
|
x = 15000.0; y = 15000.0;
|
|
local_weather.set_weather_station(blat +get_lat(x,y,phi), blon + get_lon(x,y,phi), alt_offset, vis, T-3.0, D-3.0, p * hp_to_inhg);
|
|
|
|
x = -15000.0; y = 15000.0;
|
|
local_weather.set_weather_station(blat +get_lat(x,y,phi), blon + get_lon(x,y,phi), alt_offset, vis, T-3.0, D-3.0, p * hp_to_inhg);
|
|
|
|
# before the front
|
|
|
|
x = 15000.0; y = -15000.0;
|
|
local_weather.set_weather_station(blat +get_lat(x,y,phi), blon + get_lon(x,y,phi), alt_offset, vis*0.7, T+3.0, D+3.0, (p-2.0) * hp_to_inhg);
|
|
|
|
x = -15000.0; y = -15000.0;
|
|
local_weather.set_weather_station(blat +get_lat(x,y,phi), blon + get_lon(x,y,phi), alt_offset, vis*0.7, T+3.0, D+3.0, (p-2.0) * hp_to_inhg);
|
|
|
|
# altitude for the lowest layer
|
|
var alt = spread * 1000.0;
|
|
var strength = 0.0;
|
|
|
|
# thunderstorms first
|
|
|
|
for (var i =0; i < 3; i=i+1)
|
|
{
|
|
x = 2.0 * (rand()-0.5) * 15000;
|
|
y = 2.0 * (rand()-0.5) * 2000 + 5000.0;
|
|
if (rand() > 0.7)
|
|
{create_medium_thunderstorm(blat +get_lat(x,y,phi), blon + get_lon(x,y,phi), alt+alt_offset, alpha);}
|
|
else
|
|
{create_small_thunderstorm(blat +get_lat(x,y,phi), blon + get_lon(x,y,phi), alt+alt_offset, alpha);}
|
|
}
|
|
|
|
# next the dense cloud layer underneath the thunderstorms
|
|
|
|
x = 0.0;
|
|
y = 5000.0;
|
|
|
|
var strength = 0.3;
|
|
var n = int(4000 * strength) * 0.2;
|
|
local_weather.cumulus_exclusion_layer(blat+get_lat(x,y,phi), blon+ get_lon(x,y,phi), alt+alt_offset, n, 20000.0, 10000.0, alpha, 1.5,2.5 , size(elat), elat, elon, erad);
|
|
|
|
# then leading and traling Cumulus
|
|
|
|
x = 0.0;
|
|
y = 15500.0;
|
|
|
|
strength = 1.0;
|
|
n = int(4000 * strength) * 0.15;
|
|
local_weather.cumulus_exclusion_layer(blat+get_lat(x,y,phi), blon+ get_lon(x,y,phi), alt+alt_offset, n, 20000.0, 2000.0, alpha, 0.5,1.8 , size(elat), elat, elon, erad);
|
|
|
|
x = 0.0;
|
|
y = -5500.0;
|
|
|
|
strength = 1.0;
|
|
n = int(4000 * strength) * 0.15;
|
|
local_weather.cumulus_exclusion_layer(blat+get_lat(x,y,phi), blon+ get_lon(x,y,phi), alt+alt_offset, n, 20000.0, 2000.0, alpha, 0.5,1.8 , size(elat), elat, elon, erad);
|
|
|
|
# finally some thin stratus underneath the Cumulus
|
|
|
|
x = 0.0;
|
|
y = 13000.0;
|
|
local_weather.create_streak("Stratus (thin)",blat+get_lat(x,y,phi), blon+get_lon(x,y,phi), alt+alt_offset,0.0,20,2000.0,0.2,1200.0,3,1500.0,0.2,1200.0,alpha,1.0);
|
|
|
|
|
|
x = 0.0;
|
|
y = -3000.0;
|
|
local_weather.create_streak("Stratus (thin)",blat+get_lat(x,y,phi), blon+get_lon(x,y,phi), alt+alt_offset,0.0,20,2000.0,0.2,1200.0,3,1500.0,0.2,1200.0,alpha,1.0);
|
|
|
|
|
|
# some turbulence in the convection layer
|
|
|
|
x=0.0; y = 5000.0;
|
|
local_weather.create_effect_volume(3, blat+get_lat(x,y,phi), blon+get_lon(x,y,phi), 20000.0, 11000.0, alpha, 0.0, alt+3000.0+alt_offset, -1, -1, -1, 0.4, -1,0 ,-1);
|
|
|
|
# some rain and reduced visibility in its core
|
|
|
|
x=0.0; y = 5000.0;
|
|
local_weather.create_effect_volume(3, blat+get_lat(x,y,phi), blon+get_lon(x,y,phi), 20000.0, 8000.0, alpha, 0.0, alt+alt_offset, 10000.0, 0.1, -1, -1, -1,0,-1 );
|
|
|
|
# store convective altitude and strength
|
|
|
|
append(weather_dynamics.tile_convective_altitude,alt);
|
|
append(weather_dynamics.tile_convective_strength,strength);
|
|
|
|
tile_finished();
|
|
|
|
}
|
|
|
|
|
|
####################################
|
|
# Warmfront 1
|
|
####################################
|
|
|
|
|
|
var set_warmfront1_tile = func {
|
|
|
|
setprop(lw~"tiles/code","warmfront1");
|
|
|
|
tile_start();
|
|
|
|
var x = 0.0;
|
|
var y = 0.0;
|
|
var lat = 0.0;
|
|
var lon = 0.0;
|
|
|
|
|
|
|
|
var alpha = getprop(lw~"tmp/tile-orientation-deg");
|
|
var phi = alpha * math.pi/180.0;
|
|
|
|
if (getprop(lw~"tmp/presampling-flag") == 0)
|
|
{var alt_offset = getprop(lw~"tmp/tile-alt-offset-ft");}
|
|
else
|
|
{var alt_offset = getprop(lw~"tmp/tile-alt-layered-ft");}
|
|
|
|
# get tile center coordinates
|
|
|
|
var blat = getprop(lw~"tiles/tmp/latitude-deg");
|
|
var blon = getprop(lw~"tiles/tmp/longitude-deg");
|
|
calc_geo(blat);
|
|
|
|
# get probabilistic values for the weather parameters
|
|
|
|
var vis = 20000.0 + rand() * 5000.0;
|
|
var T = 10.0 + rand() * 8.0;
|
|
var spread = 3.0 + 3.0 * rand();
|
|
var D = T - spread;
|
|
var p = 1005 + rand() * 10.0; p = adjust_p(p);
|
|
|
|
# first weather info for tile (lat, lon, visibility, temperature, dew point, pressure)
|
|
|
|
# after the front
|
|
|
|
x = 15000.0; y = 15000.0;
|
|
local_weather.set_weather_station(blat +get_lat(x,y,phi), blon + get_lon(x,y,phi), alt_offset, vis, T+2.0, D+1.0, p * hp_to_inhg);
|
|
|
|
x = -15000.0; y = 15000.0;
|
|
local_weather.set_weather_station(blat +get_lat(x,y,phi), blon + get_lon(x,y,phi), alt_offset, vis, T+2.0, D+1.0, p * hp_to_inhg);
|
|
|
|
# before the front
|
|
|
|
x = 15000.0; y = -15000.0;
|
|
local_weather.set_weather_station(blat +get_lat(x,y,phi), blon + get_lon(x,y,phi), alt_offset, vis, T, D, p * hp_to_inhg);
|
|
|
|
x = -15000.0; y = -15000.0;
|
|
local_weather.set_weather_station(blat +get_lat(x,y,phi), blon + get_lon(x,y,phi), alt_offset, vis, T, D, p * hp_to_inhg);
|
|
|
|
# altitude for the lowest layer
|
|
var alt = spread * 1000.0;
|
|
|
|
# some weak Cumulus development
|
|
|
|
var strength = 0.1 + rand() * 0.1;
|
|
local_weather.create_cumosys(blat,blon, alt + alt_offset, get_n(strength), 20000.0);
|
|
|
|
|
|
# high Cirrus leading
|
|
|
|
x = 2.0 * (rand()-0.5) * 1000;
|
|
y = 2.0 * (rand()-0.5) * 1000 - 9000.0;
|
|
|
|
|
|
local_weather.create_streak("Cirrus",blat+get_lat(x,y,phi), blon+get_lon(x,y,phi), 25000.0+alt+alt_offset,1500.0,3,11000.0,0.0, 3000.0, 2,11000.0,0.0,3000.0,alpha ,1.0);
|
|
|
|
|
|
# followed by random patches of Cirrostratus
|
|
|
|
for (var i=0; i<6; i=i+1)
|
|
{
|
|
var x = 2.0 * (rand()-0.5) * 15000;
|
|
var y = 2.0 * (rand()-0.5) * 10000 + 10000;
|
|
var beta = (rand() -0.5) * 180.0;
|
|
local_weather.create_streak("Cirrostratus",blat+get_lat(x,y,phi), blon+get_lon(x,y,phi), 18000 + alt + alt_offset,300.0,4,2300.0,0.2,600.0,4,2300.0,0.2,600.0,alpha+beta,1.0);
|
|
|
|
}
|
|
|
|
# store convective altitude and strength
|
|
|
|
append(weather_dynamics.tile_convective_altitude,alt);
|
|
append(weather_dynamics.tile_convective_strength,strength);
|
|
|
|
tile_finished();
|
|
|
|
}
|
|
|
|
|
|
####################################
|
|
# Warmfront 2
|
|
####################################
|
|
|
|
|
|
var set_warmfront2_tile = func {
|
|
|
|
setprop(lw~"tiles/code","warmfront2");
|
|
|
|
tile_start();
|
|
|
|
var x = 0.0;
|
|
var y = 0.0;
|
|
var lat = 0.0;
|
|
var lon = 0.0;
|
|
|
|
|
|
|
|
var alpha = getprop(lw~"tmp/tile-orientation-deg");
|
|
var phi = alpha * math.pi/180.0;
|
|
|
|
if (getprop(lw~"tmp/presampling-flag") == 0)
|
|
{var alt_offset = getprop(lw~"tmp/tile-alt-offset-ft");}
|
|
else
|
|
{var alt_offset = getprop(lw~"tmp/tile-alt-layered-ft");}
|
|
|
|
# get tile center coordinates
|
|
|
|
var blat = getprop(lw~"tiles/tmp/latitude-deg");
|
|
var blon = getprop(lw~"tiles/tmp/longitude-deg");
|
|
calc_geo(blat);
|
|
|
|
# get probabilistic values for the weather parameters
|
|
|
|
var vis = 15000.0 + rand() * 5000.0;
|
|
var T = 13.0 + rand() * 8.0;
|
|
var spread = 2.5 + 2.5 * rand();
|
|
var D = T - spread;
|
|
var p = 1005 + rand() * 10.0; p = adjust_p(p);
|
|
|
|
# first weather info for tile (lat, lon, visibility, temperature, dew point, pressure)
|
|
|
|
# after the front
|
|
|
|
x = 15000.0; y = 15000.0;
|
|
local_weather.set_weather_station(blat +get_lat(x,y,phi), blon + get_lon(x,y,phi), alt_offset, vis, T+2.0, D+1.0, p * hp_to_inhg);
|
|
|
|
x = -15000.0; y = 15000.0;
|
|
local_weather.set_weather_station(blat +get_lat(x,y,phi), blon + get_lon(x,y,phi), alt_offset, vis, T+2.0, D+1.0, p * hp_to_inhg);
|
|
|
|
# before the front
|
|
|
|
x = 15000.0; y = -15000.0;
|
|
local_weather.set_weather_station(blat +get_lat(x,y,phi), blon + get_lon(x,y,phi), alt_offset, vis, T, D, p * hp_to_inhg);
|
|
|
|
x = -15000.0; y = -15000.0;
|
|
local_weather.set_weather_station(blat +get_lat(x,y,phi), blon + get_lon(x,y,phi), alt_offset, vis, T, D, p * hp_to_inhg);
|
|
|
|
# altitude for the lowest layer
|
|
var alt = spread * 1000.0;
|
|
var strength = 0.0;
|
|
|
|
# followed by random patches of Cirrostratus
|
|
|
|
for (var i=0; i<3; i=i+1)
|
|
{
|
|
var x = 2.0 * (rand()-0.5) * 18000;
|
|
var y = 2.0 * (rand()-0.5) * 5000 - 15000;
|
|
var beta = (rand() -0.5) * 180.0;
|
|
local_weather.create_streak("Cirrostratus",blat+get_lat(x,y,phi), blon+get_lon(x,y,phi), 15000 + alt + alt_offset,300.0,4,2300.0,0.2,600.0,4,2300.0,0.2,600.0,alpha+beta,1.0);
|
|
|
|
}
|
|
|
|
# patches of thin Altostratus
|
|
|
|
for (var i=0; i<14; i=i+1)
|
|
{
|
|
var x = 2.0 * (rand()-0.5) * 18000;
|
|
var y = 2.0 * (rand()-0.5) * 9000 - 10000.0;
|
|
var beta = (rand() -0.5) * 180.0;
|
|
local_weather.create_streak("Stratus (thin)",blat+get_lat(x,y,phi), blon+get_lon(x,y,phi), alt+alt_offset +12000.0,300.0,4,950.0,0.2,500.0,6,950.0,0.2,500.0,alpha+beta,1.0);
|
|
|
|
}
|
|
|
|
# patches of structured Stratus
|
|
|
|
for (var i=0; i<10; i=i+1)
|
|
{
|
|
var x = 2.0 * (rand()-0.5) * 9000;
|
|
var y = 2.0 * (rand()-0.5) * 9000 + 2000;
|
|
var beta = (rand() -0.5) * 180.0;
|
|
local_weather.create_streak("Stratus (structured)",blat+get_lat(x,y,phi), blon+get_lon(x,y,phi), alt+alt_offset+9000.0,300.0,5,900.0,0.2,500.0,7,900.0,0.2,500.0,alpha+beta,1.0);
|
|
|
|
}
|
|
|
|
|
|
# merging with a broken Stratus layer
|
|
|
|
var x = 0.0;
|
|
var y = 8000.0;
|
|
|
|
local_weather.create_streak("Stratus",blat +get_lat(x,y,phi), blon+get_lon(x,y,phi), alt+alt_offset +5000.0,1000.0,30,0.0,0.2,20000.0,10,0.0,0.2,12000.0,alpha,1.0);
|
|
|
|
# store convective altitude and strength
|
|
|
|
append(weather_dynamics.tile_convective_altitude,alt);
|
|
append(weather_dynamics.tile_convective_strength,strength);
|
|
|
|
tile_finished();
|
|
|
|
}
|
|
|
|
|
|
####################################
|
|
# Warmfront 3
|
|
####################################
|
|
|
|
|
|
var set_warmfront3_tile = func {
|
|
|
|
setprop(lw~"tiles/code","warmfront3");
|
|
|
|
tile_start();
|
|
|
|
var x = 0.0;
|
|
var y = 0.0;
|
|
var lat = 0.0;
|
|
var lon = 0.0;
|
|
|
|
|
|
|
|
var alpha = getprop(lw~"tmp/tile-orientation-deg");
|
|
var phi = alpha * math.pi/180.0;
|
|
|
|
if (getprop(lw~"tmp/presampling-flag") == 0)
|
|
{var alt_offset = getprop(lw~"tmp/tile-alt-offset-ft");}
|
|
else
|
|
{var alt_offset = getprop(lw~"tmp/tile-alt-layered-ft");}
|
|
|
|
# get tile center coordinates
|
|
|
|
var blat = getprop(lw~"tiles/tmp/latitude-deg");
|
|
var blon = getprop(lw~"tiles/tmp/longitude-deg");
|
|
calc_geo(blat);
|
|
|
|
# get probabilistic values for the weather parameters
|
|
|
|
var vis = 12000.0 + rand() * 3000.0;
|
|
var T = 15.0 + rand() * 7.0;
|
|
var spread = 2.5 + 1.5 * rand();
|
|
var D = T - spread;
|
|
var p = 1005 + rand() * 10.0; p = adjust_p(p);
|
|
|
|
# first weather info for tile (lat, lon, visibility, temperature, dew point, pressure)
|
|
|
|
# after the front
|
|
|
|
x = 15000.0; y = 15000.0;
|
|
local_weather.set_weather_station(blat +get_lat(x,y,phi), blon + get_lon(x,y,phi), alt_offset, vis, T+2.0, D+1.0, p * hp_to_inhg);
|
|
|
|
x = -15000.0; y = 15000.0;
|
|
local_weather.set_weather_station(blat +get_lat(x,y,phi), blon + get_lon(x,y,phi), alt_offset, vis, T+2.0, D+1.0, p * hp_to_inhg);
|
|
|
|
# before the front
|
|
|
|
x = 15000.0; y = -15000.0;
|
|
local_weather.set_weather_station(blat +get_lat(x,y,phi), blon + get_lon(x,y,phi), alt_offset, vis, T, D, p * hp_to_inhg);
|
|
|
|
x = -15000.0; y = -15000.0;
|
|
local_weather.set_weather_station(blat +get_lat(x,y,phi), blon + get_lon(x,y,phi), alt_offset, vis, T, D, p * hp_to_inhg);
|
|
|
|
# altitude for the lowest layer
|
|
var alt = spread * 1000.0 + local_weather.cloud_vertical_size_map["Nimbus"] * 0.5 * m_to_ft;
|
|
var strength = 0.0;
|
|
|
|
# closed Stratus layer
|
|
|
|
var x = 0.0;
|
|
var y = -8000.0;
|
|
|
|
local_weather.create_streak("Stratus",blat +get_lat(x,y,phi), blon+get_lon(x,y,phi), alt+alt_offset +1000.0,500.0,32,1250.0,0.2,400.0,20,1250.0,0.2,400.0,alpha,1.0);
|
|
|
|
|
|
|
|
|
|
|
|
# merging with a Nimbostratus layer
|
|
|
|
var x = 0.0;
|
|
var y = 8000.0;
|
|
|
|
local_weather.create_streak("Nimbus",blat +get_lat(x,y,phi), blon+get_lon(x,y,phi), alt+alt_offset,500.0,32,1250.0,0.0,200.0,20,1250.0,0.0,200.0,alpha,1.0);
|
|
|
|
|
|
|
|
# some rain beneath the stratus
|
|
|
|
x=0.0; y = -10000.0;
|
|
local_weather.create_effect_volume(3, blat+get_lat(x,y,phi), blon+get_lon(x,y,phi), 20000.0, 10000.0, alpha, 0.0, alt+alt_offset+1000, vis * 0.7, 0.1, -1, -1, -1,0 ,-1);
|
|
|
|
# heavier rain beneath the Nimbostratus
|
|
|
|
x=0.0; y = 10000.0;
|
|
local_weather.create_effect_volume(3, blat+get_lat(x,y,phi), blon+get_lon(x,y,phi), 20000.0, 10000.0, alpha, 0.0, alt+alt_offset, vis * 0.5, 0.3, -1, -1, -1,0,-1 );
|
|
|
|
|
|
# store convective altitude and strength
|
|
|
|
append(weather_dynamics.tile_convective_altitude,alt);
|
|
append(weather_dynamics.tile_convective_strength,strength);
|
|
|
|
tile_finished();
|
|
|
|
}
|
|
|
|
|
|
####################################
|
|
# Warmfront 4
|
|
####################################
|
|
|
|
|
|
var set_warmfront4_tile = func {
|
|
|
|
setprop(lw~"tiles/code","warmfront4");
|
|
|
|
tile_start();
|
|
|
|
var x = 0.0;
|
|
var y = 0.0;
|
|
var lat = 0.0;
|
|
var lon = 0.0;
|
|
|
|
|
|
|
|
var alpha = getprop(lw~"tmp/tile-orientation-deg");
|
|
var phi = alpha * math.pi/180.0;
|
|
|
|
if (getprop(lw~"tmp/presampling-flag") == 0)
|
|
{var alt_offset = getprop(lw~"tmp/tile-alt-offset-ft");}
|
|
else
|
|
{var alt_offset = getprop(lw~"tmp/tile-alt-layered-ft");}
|
|
|
|
# get tile center coordinates
|
|
|
|
var blat = getprop(lw~"tiles/tmp/latitude-deg");
|
|
var blon = getprop(lw~"tiles/tmp/longitude-deg");
|
|
calc_geo(blat);
|
|
|
|
# get probabilistic values for the weather parameters
|
|
|
|
var vis = 12000.0 + rand() * 3000.0;
|
|
var T = 17.0 + rand() * 6.0;
|
|
var spread = 2.0 + 1.0 * rand();
|
|
var D = T - spread;
|
|
var p = 1005 + rand() * 10.0; p = adjust_p(p);
|
|
|
|
# first weather info for tile (lat, lon, visibility, temperature, dew point, pressure)
|
|
|
|
# after the front
|
|
|
|
x = 15000.0; y = 15000.0;
|
|
local_weather.set_weather_station(blat +get_lat(x,y,phi), blon + get_lon(x,y,phi), alt_offset, vis, T+2.0, D+1.0, p * hp_to_inhg);
|
|
|
|
x = -15000.0; y = 15000.0;
|
|
local_weather.set_weather_station(blat +get_lat(x,y,phi), blon + get_lon(x,y,phi), alt_offset, vis, T+2.0, D+1.0, p * hp_to_inhg);
|
|
|
|
# before the front
|
|
|
|
x = 15000.0; y = -15000.0;
|
|
local_weather.set_weather_station(blat +get_lat(x,y,phi), blon + get_lon(x,y,phi), alt_offset, vis, T, D, p * hp_to_inhg);
|
|
|
|
x = -15000.0; y = -15000.0;
|
|
local_weather.set_weather_station(blat +get_lat(x,y,phi), blon + get_lon(x,y,phi), alt_offset, vis, T, D, p * hp_to_inhg);
|
|
|
|
# altitude for the lowest layer
|
|
var alt = spread * 1000.0 + local_weather.cloud_vertical_size_map["Nimbus"] * 0.5 * m_to_ft;
|
|
var strength = 0.0;
|
|
|
|
# low Nimbostratus layer
|
|
|
|
var x = 0.0;
|
|
var y = -5000.0;
|
|
|
|
local_weather.create_streak("Nimbus",blat +get_lat(x,y,phi), blon+get_lon(x,y,phi), alt+alt_offset,500.0,32,1250.0,0.0,200.0,24,1250.0,0.0,200.0,alpha,1.0);
|
|
|
|
|
|
# a little patchy structured Stratus above for effect
|
|
|
|
create_2_8_sstratus(blat, blon, alt+alt_offset+3000.0, alpha);
|
|
|
|
# eventually breaking up
|
|
|
|
var x = 0.0;
|
|
var y = 14000.0;
|
|
|
|
local_weather.create_streak("Nimbus",blat +get_lat(x,y,phi), blon+get_lon(x,y,phi), alt+alt_offset,500.0,25,1600.0,0.2,200.0,9,1400.0,0.3,200.0,alpha,1.0);
|
|
|
|
|
|
|
|
# rain beneath the Nimbostratus
|
|
|
|
x=0.0; y = -5000.0;
|
|
local_weather.create_effect_volume(3, blat+get_lat(x,y,phi), blon+get_lon(x,y,phi), 20000.0, 15000.0, alpha, 0.0, alt+alt_offset, vis * 0.5, 0.3, -1, -1, -1,0 ,-1);
|
|
|
|
|
|
# store convective altitude and strength
|
|
|
|
append(weather_dynamics.tile_convective_altitude,alt);
|
|
append(weather_dynamics.tile_convective_strength,strength);
|
|
|
|
tile_finished();
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
####################################
|
|
# Glider's sky
|
|
####################################
|
|
|
|
var set_gliders_sky_tile = func {
|
|
|
|
setprop(lw~"tiles/code","gliders_sky");
|
|
|
|
tile_start();
|
|
|
|
var x = 0.0;
|
|
var y = 0.0;
|
|
var lat = 0.0;
|
|
var lon = 0.0;
|
|
|
|
var alpha = getprop(lw~"tmp/tile-orientation-deg");
|
|
var phi = alpha * math.pi/180.0;
|
|
var alt_offset = getprop(lw~"tmp/tile-alt-offset-ft");
|
|
|
|
# get tile center coordinates
|
|
|
|
var blat = getprop(lw~"tiles/tmp/latitude-deg");
|
|
var blon = getprop(lw~"tiles/tmp/longitude-deg");
|
|
calc_geo(blat);
|
|
|
|
# first weather info for tile center (lat, lon, visibility, temperature, dew point, pressure)
|
|
local_weather.set_weather_station(blat, blon, alt_offset, 35000.0, 20.0, 16.0, 1018 * hp_to_inhg);
|
|
|
|
|
|
|
|
var alt = 3000.0;
|
|
|
|
# add convective clouds
|
|
|
|
var strength = 0.5;
|
|
var n = int(4000 * strength); # calculate the number of placement tries from tile size 20x20km and strength
|
|
local_weather.create_cumosys(blat,blon, alt+alt_offset,n, 20000.0);
|
|
|
|
# store convective altitude and strength
|
|
|
|
append(weather_dynamics.tile_convective_altitude,alt);
|
|
append(weather_dynamics.tile_convective_strength,strength);
|
|
|
|
tile_finished();
|
|
|
|
|
|
}
|
|
|
|
####################################
|
|
# Blue thermals
|
|
####################################
|
|
|
|
var set_blue_thermals_tile = func {
|
|
|
|
setprop(lw~"tiles/code","blue_thermals");
|
|
|
|
tile_start();
|
|
|
|
var x = 0.0;
|
|
var y = 0.0;
|
|
var lat = 0.0;
|
|
var lon = 0.0;
|
|
|
|
var alpha = getprop(lw~"tmp/tile-orientation-deg");
|
|
var phi = alpha * math.pi/180.0;
|
|
var alt_offset = getprop(lw~"tmp/tile-alt-offset-ft");
|
|
|
|
# get tile center coordinates
|
|
|
|
var blat = getprop(lw~"tiles/tmp/latitude-deg");
|
|
var blon = getprop(lw~"tiles/tmp/longitude-deg");
|
|
calc_geo(blat);
|
|
|
|
# first weather info for tile center (lat, lon, visibility, temperature, dew point, pressure)
|
|
local_weather.set_weather_station(blat, blon, alt_offset, 45000.0, 20.0, 15.0, 1018 * hp_to_inhg);
|
|
|
|
local_weather.generate_thermal_lift_flag = 3;
|
|
|
|
var alt = 5000.0;
|
|
|
|
# add convective clouds
|
|
|
|
# set flag to blue thermal generation
|
|
if (local_weather.generate_thermal_lift_flag !=0)
|
|
{local_weather.generate_thermal_lift_flag = 3;}
|
|
|
|
var strength = 0.9;
|
|
var n = int(4000 * strength); # calculate the number of placement tries from tile size 20x20km and strength
|
|
local_weather.create_cumosys(blat,blon, 5000.0+alt_offset,n, 20000.0);
|
|
|
|
# set flag back to normal thermal generation
|
|
if (local_weather.generate_thermal_lift_flag !=0)
|
|
{local_weather.generate_thermal_lift_flag = 0;}
|
|
|
|
# store convective altitude and strength
|
|
|
|
append(weather_dynamics.tile_convective_altitude,alt);
|
|
append(weather_dynamics.tile_convective_strength,strength);
|
|
|
|
tile_finished();
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
####################################
|
|
# METAR
|
|
####################################
|
|
|
|
var set_METAR_tile = func {
|
|
|
|
|
|
setprop(lw~"tiles/code","METAR");
|
|
|
|
tile_start();
|
|
|
|
var x = 0.0;
|
|
var y = 0.0;
|
|
var lat = 0.0;
|
|
var lon = 0.0;
|
|
|
|
|
|
|
|
var alpha = getprop("/environment/metar/base-wind-dir-deg");
|
|
var phi = alpha * math.pi/180.0;
|
|
var metar_alt_offset = 700.0 + getprop("/environment/metar/station-elevation-ft");
|
|
|
|
# print("metar_alt_offset", metar_alt_offset);
|
|
|
|
# get the local time of the day in seconds
|
|
|
|
var t = getprop("sim/time/utc/day-seconds");
|
|
t = t + getprop("sim/time/local-offset");
|
|
|
|
# get tile center coordinates
|
|
|
|
var blat = getprop(lw~"tiles/tmp/latitude-deg");
|
|
var blon = getprop(lw~"tiles/tmp/longitude-deg");
|
|
calc_geo(blat);
|
|
|
|
var rain_norm = getprop("/environment/metar/rain-norm");
|
|
var snow_norm = getprop("/environment/metar/snow-norm");
|
|
var p = inhg_to_hp * getprop("/environment/metar/pressure-sea-level-inhg");
|
|
|
|
# now get the cloud layer info
|
|
|
|
var layers = props.globals.getNode("/environment/metar/clouds", 1).getChildren("layer");
|
|
var n_layers = size(layers); # the system initializes with 4 layers, but who knows...
|
|
var n = 0; # start with lowest layer
|
|
|
|
# now determine the nature of the lowest layer
|
|
|
|
var cumulus_flag = 1; # default assumption - the lowest layer is cumulus
|
|
var thunderstorm_flag = 0;
|
|
var cover_low = 8 - 2 * layers[0].getNode("coverage-type").getValue(); # conversion to oktas
|
|
var alt_low = layers[0].getNode("elevation-ft").getValue();
|
|
|
|
# print("alt_low: ", alt_low);
|
|
|
|
if ((alt_low < 0.0) or (cover_low ==0)) # we have to guess a value for the convective altitude for the visibility model
|
|
{alt_low = 8000.0;}
|
|
|
|
# first check a few obvious criteria
|
|
|
|
if (cover_low == 8) {cumulus_flag = 0;} # overcast sky is unlikely to be Cumulus, and we can't render it anyway
|
|
if ((rain_norm > 0.0) or (snow_norm > 0.0)) {cumulus_flag = 0;} # Cumulus usually doesn't rain
|
|
if (alt_low > 7000.0) {cumulus_flag = 0;} # Cumulus are low altitude clouds
|
|
|
|
# now try matching time evolution of cumuli
|
|
|
|
if ((cover_low == 5) or (cover_low == 6) or (cover_low == 7)) # broken
|
|
{
|
|
if ((t < 39600) or (t > 68400)) {cumulus_flag = 0;} # not before 11:00 and not after 19:00
|
|
}
|
|
|
|
if ((cover_low == 3) or (cover_low == 4)) # scattered
|
|
{
|
|
if ((t < 32400) or (t > 75600)) {cumulus_flag = 0;} # not before 9:00 and not after 21:00
|
|
}
|
|
|
|
# now see if there is a layer shading convective development
|
|
|
|
var coverage_above = 8 - 2 * layers[1].getNode("coverage-type").getValue();
|
|
var coverage_above2 = 8 - 2 * layers[2].getNode("coverage-type").getValue();
|
|
|
|
if (coverage_above2 > coverage_above)
|
|
{coverage_above = coverage_above2;}
|
|
|
|
if (coverage_above > 6) {cumulus_flag = 0;} # no Cumulus with strong layer above
|
|
|
|
# never do Cumulus when there's a thunderstorm
|
|
if (getprop(lw~"METAR/thunderstorm-flag") ==1) {cumulus_flag = 0; thunderstorm_flag = 1;}
|
|
|
|
# if cumulus_flag is still 1 at this point, the lowest layer is Cumulus
|
|
# see if we need to adjust its strength
|
|
|
|
if ((cumulus_flag == 1) and (cover_low > 0))
|
|
{
|
|
if ((cover_low < 4) and (t > 39600) and (t < 68400)) {var strength = 0.4;}
|
|
if ((cover_low < 2) and (t > 39600) and (t < 68400)) {var strength = 0.2;}
|
|
else {var strength = 1.0;}
|
|
local_weather.create_cumosys(blat,blon, alt_low+metar_alt_offset,get_n(strength), 20000.0);
|
|
n = n + 1; # do not start parsing with lowest layer
|
|
}
|
|
else
|
|
{var strength = 0.0;}
|
|
|
|
|
|
# if thunderstorm_flag is 1, we do the lowest layer as thunderstorm scenario, somewhat ignoring the coverage info
|
|
|
|
if (thunderstorm_flag == 1)
|
|
{
|
|
create_thunderstorm_scenario(blat, blon, alt_low+metar_alt_offset, alpha);
|
|
n = n + 1; # do not start parsing with lowest layer
|
|
}
|
|
|
|
|
|
for (var i = n; i <n_layers; i=i+1)
|
|
{
|
|
var altitude = layers[i].getNode("elevation-ft").getValue();
|
|
# print("altitude: ",altitude);
|
|
var cover = 8 - 2 * layers[i].getNode("coverage-type").getValue();
|
|
|
|
if (cover == -2) {break;} # a clear cover layer indicates we are done
|
|
|
|
if (n > 0) { rain_norm = 0.0; snow_norm = 0.0;} # rain and snow fall only from the lowest layer
|
|
|
|
if (altitude < 9000.0) # draw Nimbostratus or Stratus models
|
|
{
|
|
if (cover == 8)
|
|
{
|
|
if ((altitude < 2000) or (rain_norm > 0.3))
|
|
{create_8_8_nimbus_rain(blat, blon, altitude+metar_alt_offset, alpha, rain_norm);}
|
|
else
|
|
{create_8_8_stratus_rain(blat, blon, altitude+metar_alt_offset, alpha, rain_norm);}
|
|
}
|
|
else if ((cover < 8) and (cover > 4))
|
|
{
|
|
if (cumulus_flag == 1)
|
|
{
|
|
create_4_8_sstratus_patches(blat, blon, altitude+metar_alt_offset, alpha);
|
|
}
|
|
else
|
|
{
|
|
if ((rain_norm > 0.1) and (altitude < 5000.0))
|
|
{
|
|
create_6_8_nimbus_rain(blat, blon, altitude+metar_alt_offset, alpha, rain_norm);
|
|
}
|
|
else if (rain_norm > 0.0)
|
|
{
|
|
create_6_8_stratus_rain(blat, blon, altitude+metar_alt_offset, alpha, rain_norm);
|
|
}
|
|
else
|
|
{
|
|
if ((p > 1010.0) and (i == 0)) # the lowest layer may be Stratocumulus
|
|
{
|
|
create_6_8_stratocumulus(blat, blon, altitude+metar_alt_offset, alpha);
|
|
}
|
|
else
|
|
{
|
|
if (rand() > 0.5)
|
|
{create_6_8_stratus(blat, blon, altitude+metar_alt_offset, alpha);}
|
|
else
|
|
{create_6_8_stratus_undulatus(blat, blon, altitude+metar_alt_offset, alpha);}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else if ((cover == 3) or (cover == 4))
|
|
{
|
|
if ((p > 1010.0) and (i == 0)) # the lowest layer may be Stratocumulus
|
|
{
|
|
create_4_8_stratocumulus(blat, blon, altitude+metar_alt_offset, alpha);
|
|
}
|
|
else
|
|
{
|
|
var rn = rand();
|
|
if (rn > 0.75)
|
|
{create_4_8_stratus(blat, blon, altitude+metar_alt_offset, alpha);}
|
|
else if (rn > 0.5)
|
|
{create_4_8_stratus_patches(blat, blon, altitude+metar_alt_offset, alpha);}
|
|
else if (rn > 0.25)
|
|
{create_4_8_sstratus_patches(blat, blon, altitude+metar_alt_offset, alpha);}
|
|
else if (rn > 0.0)
|
|
{create_4_8_sstratus_undulatus(blat, blon, altitude+metar_alt_offset, alpha);}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (cumulus_flag == 0)
|
|
{
|
|
var rn = rand();
|
|
if (rn > 0.5)
|
|
{create_2_8_stratus(blat, blon, altitude+metar_alt_offset, alpha);}
|
|
else if (rn > 0.0)
|
|
{create_2_8_sstratus(blat, blon, altitude+metar_alt_offset, alpha);}
|
|
}
|
|
else
|
|
{
|
|
create_2_8_altocumulus_streaks(blat, blon, altitude+metar_alt_offset, alpha);
|
|
}
|
|
}
|
|
} # end if altitude
|
|
else if ((altitude > 9000.0) and (altitude < 20000.0)) # select thin cloud layers
|
|
{
|
|
if (cover == 8)
|
|
{
|
|
if (altitude < 14000.0)
|
|
{create_8_8_tstratus(blat, blon, altitude+metar_alt_offset, alpha);}
|
|
else
|
|
{create_8_8_cirrostratus(blat, blon, altitude+metar_alt_offset, alpha);}
|
|
}
|
|
else if (cover > 4)
|
|
{
|
|
if (altitude < 14000.0)
|
|
{create_6_8_tstratus_undulatus(blat, blon, altitude+metar_alt_offset, alpha);}
|
|
else
|
|
{create_6_8_cirrostratus(blat, blon, altitude+metar_alt_offset, alpha);}
|
|
}
|
|
else if (cover > 2)
|
|
{
|
|
var rn = rand();
|
|
if (rn > 0.75)
|
|
{create_4_8_tstratus_patches(blat, blon, altitude+metar_alt_offset, alpha);}
|
|
else if (rn > 0.5)
|
|
{create_4_8_alttstratus_streaks(blat, blon, altitude+metar_alt_offset, alpha);}
|
|
else if (rn > 0.25)
|
|
{create_4_8_alttstratus_patches(blat, blon, altitude+metar_alt_offset, alpha);}
|
|
else if (rn > 0.0)
|
|
{create_4_8_tstratus_undulatus(blat, blon, altitude+metar_alt_offset, alpha);}
|
|
}
|
|
else
|
|
{
|
|
if (altitude < 14000.0)
|
|
{
|
|
var rn = rand();
|
|
if (rn > 0.66)
|
|
{create_2_8_tstratus(blat, blon, altitude+metar_alt_offset, alpha);}
|
|
else if (rn > 0.33)
|
|
{create_2_8_sstratus(blat, blon, altitude+metar_alt_offset, alpha);}
|
|
else
|
|
{create_2_8_alttstratus(blat, blon, altitude+metar_alt_offset, alpha);}
|
|
}
|
|
else
|
|
{
|
|
var rn = rand();
|
|
if (rn > 0.5)
|
|
{create_2_8_cirrocumulus(blat, blon, altitude+metar_alt_offset, alpha);}
|
|
else
|
|
{create_2_8_alttstratus(blat, blon, altitude+metar_alt_offset, alpha);}
|
|
|
|
}
|
|
}
|
|
} # end if altitude
|
|
else
|
|
{
|
|
if (cover == 8)
|
|
{create_8_8_cirrostratus(blat, blon, altitude+metar_alt_offset, alpha);}
|
|
else if (cover > 4)
|
|
{create_6_8_cirrostratus(blat, blon, altitude+metar_alt_offset, alpha);}
|
|
else if (cover > 2)
|
|
{
|
|
var rn = rand();
|
|
if (rn > 0.5)
|
|
{create_4_8_cirrostratus_patches(blat, blon, altitude+metar_alt_offset, alpha);}
|
|
else
|
|
{create_4_8_cirrostratus_undulatus(blat, blon, altitude+metar_alt_offset, alpha);}
|
|
}
|
|
else
|
|
{
|
|
var rn = rand();
|
|
if (rn > 0.5)
|
|
{create_2_8_cirrostratus(blat, blon, altitude+metar_alt_offset, alpha);}
|
|
else
|
|
{create_1_8_cirrocumulus(blat, blon, altitude+metar_alt_offset, alpha);}
|
|
|
|
}
|
|
|
|
|
|
}
|
|
} # end for
|
|
|
|
|
|
|
|
# store convective altitude and strength
|
|
|
|
append(weather_dynamics.tile_convective_altitude,alt_low);
|
|
append(weather_dynamics.tile_convective_strength,strength);
|
|
|
|
tile_finished();
|
|
}
|
|
|
|
|
|
|
|
####################################
|
|
# METAR station setup
|
|
####################################
|
|
|
|
var set_METAR_weather_station = func {
|
|
|
|
|
|
# get the METAR position info
|
|
|
|
var station_lat = getprop("/environment/metar/station-latitude-deg");
|
|
var station_lon = getprop("/environment/metar/station-longitude-deg");
|
|
var metar_alt_offset = 700.0 + getprop("/environment/metar/station-elevation-ft");
|
|
|
|
|
|
|
|
# get the weather parameters
|
|
|
|
var vis = getprop("/environment/metar/max-visibility-m");
|
|
var T = getprop("/environment/metar/temperature-sea-level-degc");
|
|
var D = getprop("/environment/metar/dewpoint-sea-level-degc");
|
|
var p = getprop("/environment/metar/pressure-sea-level-inhg");
|
|
var rain_norm = getprop("/environment/metar/rain-norm");
|
|
var snow_norm = getprop("/environment/metar/snow-norm");
|
|
|
|
var windspeed = getprop("/environment/metar/base-wind-speed-kt");
|
|
var wind_range_from = getprop("/environment/metar/base-wind-range-from");
|
|
var wind_range_to = getprop("/environment/metar/base-wind-range-to");
|
|
|
|
var gust_strength = getprop("/environment/metar/gust-wind-speed-kt");
|
|
var alpha = getprop("/environment/metar/base-wind-dir-deg");
|
|
|
|
|
|
# some METAR report just above max. visibility, if so we guess visibility based on pressure
|
|
|
|
var is_visibility_max = 0;
|
|
|
|
if (vis == 9999) {is_visibility_max = 1;}
|
|
|
|
if ((vis > 16093) and (vis < 16094)) # that's 10 nm
|
|
{is_visibility_max = 1;}
|
|
|
|
if (is_visibility_max == 1)
|
|
{
|
|
if (p * inhg_to_hp < 1000.0) {vis = 10000.0 + 5000 * rand();}
|
|
else if (p * inhg_to_hp < 1010.0) {vis = 15000.0 + 7000 * rand();}
|
|
else if (p * inhg_to_hp < 1020.0) {vis = 22000.0 + 14000.0 * rand();}
|
|
else {vis = 30000.0 + 15000.0 * rand();}
|
|
}
|
|
|
|
|
|
|
|
# set the station
|
|
local_weather.set_weather_station(station_lat, station_lon, metar_alt_offset, vis, T, D, p);
|
|
|
|
|
|
# if we use aloft interpolated winds with METAR, also set a new wind interpolation point
|
|
|
|
if (local_weather.wind_model_flag == 5)
|
|
{
|
|
# if zero winds are reported, we do not rotate the tile to face north but use the last value
|
|
|
|
if ((alpha == 0.0) and (windspeed == 0.0))
|
|
{
|
|
alpha = getprop(lw~"tmp/tile-orientation-deg");
|
|
var phi = alpha * math.pi/180.0;
|
|
}
|
|
|
|
|
|
var boundary_correction = 1.0/local_weather.get_slowdown_fraction();
|
|
local_weather.set_wind_ipoint_metar(station_lat, station_lon, alpha, boundary_correction * windspeed);
|
|
}
|
|
|
|
# also compute and set gust wind info
|
|
|
|
var gust_angvar = 0.5 * weather_tile_management.relangle(wind_range_from, wind_range_to);
|
|
|
|
if (gust_strength > 0.0)
|
|
{
|
|
var gust_relative_strength = (gust_strength - windspeed)/windspeed;
|
|
setprop(lw~"tmp/gust-frequency-hz", 1.0);
|
|
}
|
|
else
|
|
{
|
|
var gust_relative_strength = 0.0;
|
|
setprop(lw~"tmp/gust-frequency-hz", 0.0);
|
|
}
|
|
|
|
|
|
setprop(lw~"tmp/gust-relative-strength", gust_relative_strength);
|
|
setprop(lw~"tmp/gust-angular-variation-deg", gust_angvar);
|
|
|
|
|
|
# and mark that we have used this station
|
|
setprop(lw~"METAR/station-id",getprop("/environment/metar/station-id"));
|
|
|
|
|
|
}
|
|
|
|
|
|
####################################
|
|
# mid-level cloud setup calls
|
|
####################################
|
|
|
|
var create_8_8_stratus = func (lat, lon, alt, alpha) {
|
|
|
|
local_weather.create_streak("Stratus",lat, lon, alt,500.0,32,1250.0,0.0,400.0,32,1250.0,0.0,400.0,alpha,1.0);
|
|
|
|
}
|
|
|
|
var create_8_8_tstratus = func (lat, lon, alt, alpha) {
|
|
|
|
local_weather.create_streak("Stratus (thin)",lat, lon, alt,500.0,32,1250.0,0.0,400.0,32,1250.0,0.0,400.0,alpha,1.0);
|
|
|
|
}
|
|
|
|
var create_8_8_cirrostratus = func (lat, lon, alt, alpha) {
|
|
|
|
local_weather.create_streak("Cirrostratus",lat,lon,alt,500.0,30,1250.0,0.0,400.0,30,1250.0,0.0,400.0,alpha,1.0);
|
|
}
|
|
|
|
var create_8_8_nimbus = func (lat, lon, alt, alpha) {
|
|
|
|
local_weather.create_streak("Nimbus",lat, lon, alt,500.0,32,1250.0,0.0,200.0,32,1250.0,0.0,200.0,alpha,1.0);
|
|
}
|
|
|
|
var create_8_8_nimbus_rain = func (lat, lon, alt, alpha, rain) {
|
|
|
|
local_weather.create_streak("Nimbus",lat, lon, alt,500.0,32,1250.0,0.0,200.0,32,1250.0,0.0,200.0,alpha,1.0);
|
|
|
|
if (rain > 0.1)
|
|
{
|
|
local_weather.create_effect_volume(3, lat, lon, 20000.0, 20000.0, alpha, 0.0, alt, 500.0 + (1.0 - 0.5 * rain) * 5500.0, 0.5 * rain , -1, -1, -1,0 ,0.95);
|
|
local_weather.create_effect_volume(3, lat , lon, 16000.0, 16000.0, alpha, 0.0, alt - 300.0, 500.0 + (1.0-rain) * 5500.0, rain, -1, -1, -1,0 ,0.8);
|
|
}
|
|
else
|
|
{
|
|
local_weather.create_effect_volume(3, lat, lon, 20000.0, 20000.0, alpha, 0.0, alt, -1, rain , -1, -1, -1,0 ,0.8);
|
|
}
|
|
|
|
}
|
|
|
|
|
|
var create_8_8_stratus_rain = func (lat, lon, alt, alpha, rain) {
|
|
|
|
local_weather.create_streak("Stratus",lat, lon, alt,500.0,32,1250.0,0.0,400.0,32,1250.0,0.0,400.0,alpha,1.0);
|
|
|
|
if (rain > 0.1)
|
|
{
|
|
local_weather.create_effect_volume(3, lat, lon, 20000.0, 20000.0, alpha, 0.0, alt, 500.0 + (1.0 - 0.5 * rain) * 5500.0, 0.5 * rain , -1, -1, -1,0 ,-1);
|
|
local_weather.create_effect_volume(3, lat , lon, 16000.0, 16000.0, alpha, 0.0, alt - 300.0, 500.0 + (1.0-rain) * 5500.0, rain, -1, -1, -1,0 ,0.9);
|
|
}
|
|
else
|
|
{
|
|
local_weather.create_effect_volume(3, lat, lon, 20000.0, 20000.0, alpha, 0.0, alt, -1, rain , -1, -1, -1,0 ,0.9);
|
|
}
|
|
}
|
|
|
|
|
|
var create_6_8_stratus = func (lat, lon, alt, alpha) {
|
|
|
|
local_weather.create_streak("Stratus",lat, lon, alt,500.0,20,0.0,0.2,20000.0,20,0.0,0.2,20000.0,alpha,1.0);
|
|
}
|
|
|
|
|
|
|
|
|
|
var create_6_8_nimbus_rain = func (lat, lon, alt, alpha, rain) {
|
|
|
|
var phi = alpha * math.pi/180.0;
|
|
|
|
|
|
for (var i = 0; i < 3; i = i + 1)
|
|
{
|
|
var x = 2.0 * (rand()-0.5) * 2000.0 + i * 12000.0 - 12000.0;
|
|
var y = 2.0 * (rand()-0.5) * 12000.0;
|
|
var beta = rand() * 360.0;
|
|
|
|
local_weather.create_layer("Nimbus", lat+get_lat(x,y,phi), lon+get_lon(x,y,phi), alt, 500.0, 12000.0, 7000.0, beta, 1.0, 0.2, 1, 1.0);
|
|
|
|
if (rain > 0.1)
|
|
{
|
|
local_weather.create_effect_volume(2, lat+get_lat(x,y,phi), lon+get_lon(x,y,phi), 10000.0, 6000.0, beta, 0.0, alt, 500.0 + (1.0-0.5*rain) * 5500.0, 0.5 * rain, -1, -1, -1,0,0.95 );
|
|
local_weather.create_effect_volume(2, lat+get_lat(x,y,phi), lon+get_lon(x,y,phi), 9000.0, 5000.0, beta, 0.0, alt-300.0, 500.0 + (1.0-rain) * 5500.0, rain, -1, -1, -1,0,0.8);
|
|
}
|
|
else
|
|
{
|
|
local_weather.create_effect_volume(2, lat+get_lat(x,y,phi), lon+get_lon(x,y,phi), 10000.0, 6000.0, beta, 0.0, alt, -1, rain, -1, -1, -1,0, 0.8 );
|
|
}
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
var create_6_8_stratus_rain = func (lat, lon, alt, alpha, rain) {
|
|
|
|
var phi = alpha * math.pi/180.0;
|
|
|
|
|
|
for (var i = 0; i < 3; i = i + 1)
|
|
{
|
|
var x = 2.0 * (rand()-0.5) * 2000.0 + i * 12000.0 - 12000.0;
|
|
var y = 2.0 * (rand()-0.5) * 12000.0;
|
|
var beta = rand() * 360.0;
|
|
|
|
local_weather.create_layer("Stratus", lat+get_lat(x,y,phi), lon+get_lon(x,y,phi), alt, 500.0, 12000.0, 7000.0, beta, 1.0, 0.2, 0, 0.0);
|
|
|
|
if (rain > 0.1)
|
|
{
|
|
local_weather.create_effect_volume(2, lat+get_lat(x,y,phi), lon+get_lon(x,y,phi), 10000.0, 6000.0, beta, 0.0, alt, 500.0 + (1.0-0.5*rain) * 5500.0, 0.5 * rain, -1, -1, -1,0,0.95 );
|
|
local_weather.create_effect_volume(2, lat+get_lat(x,y,phi), lon+get_lon(x,y,phi), 9000.0, 5000.0, beta, 0.0, alt-300.0, 500.0 + (1.0-rain) * 5500.0, rain, -1, -1, -1,0,0.8);
|
|
}
|
|
else
|
|
{
|
|
local_weather.create_effect_volume(2, lat+get_lat(x,y,phi), lon+get_lon(x,y,phi), 10000.0, 6000.0, beta, 0.0, alt, -1, rain, -1, -1, -1,0, 0.8 );
|
|
}
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
var create_6_8_stratus_undulatus = func (lat, lon, alt, alpha) {
|
|
|
|
local_weather.create_undulatus("Stratus",lat, lon, alt,300.0,10,4000.0,0.1,400.0,50,800.0,0.1,100.0, 1000.0, alpha,1.0);
|
|
}
|
|
|
|
var create_6_8_tstratus_undulatus = func (lat, lon, alt, alpha) {
|
|
|
|
local_weather.create_undulatus("Stratus (thin)",lat, lon, alt,300.0,10,4000.0,0.1,400.0,50,800.0,0.1,100.0, 1000.0, alpha,1.0);
|
|
}
|
|
|
|
var create_6_8_cirrostratus = func (lat, lon, alt, alpha) {
|
|
|
|
local_weather.create_streak("Cirrostratus",lat,lon,alt,500.0,24,1500.0,0.0,900.0,24,1500.0,0.0,900.0,alpha,1.0);
|
|
}
|
|
|
|
|
|
var create_6_8_stratocumulus = func (lat, lon, alt, alpha) {
|
|
|
|
if (local_weather.detailed_clouds_flag == 1)
|
|
{
|
|
for (i=0; i< 2; i=i+1)
|
|
{
|
|
var phi = alpha * math.pi/180.0;
|
|
var x = 2.0 * (rand()-0.5) * 4000;
|
|
var y = 2.0 * (rand()-0.5) * 4000;
|
|
var beta = rand() * 360.0;
|
|
create_detailed_stratocumulus_bank(lat+get_lat(x,y,phi), lon+get_lon(x,y,phi), alt, alpha+beta);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
create_stratocumulus_bank(lat, lon, alt, alpha);
|
|
create_stratocumulus_bank(lat, lon, alt, alpha);
|
|
}
|
|
|
|
}
|
|
|
|
|
|
var create_4_8_stratus = func (lat, lon, alt, alpha) {
|
|
|
|
var phi = alpha * math.pi/180.0;
|
|
var x = 2.0 * (rand()-0.5) * 15000;
|
|
var y = 2.0 * (rand()-0.5) * 15000;
|
|
var beta = rand() * 360.0;
|
|
|
|
local_weather.create_streak("Stratus",lat+get_lat(x,y,phi), lon+get_lon(x,y,phi), alt,500.0,20,1200.0,0.3,400.0,12,1200.0,0.3,400.0,beta,1.2);
|
|
|
|
|
|
var x = 2.0 * (rand()-0.5) * 15000;
|
|
var y = 2.0 * (rand()-0.5) * 15000;
|
|
var beta = rand() * 360.0;
|
|
|
|
local_weather.create_streak("Stratus",lat+get_lat(x,y,phi), lon+get_lon(x,y,phi), alt,500.0,18,1000.0,0.3,400.0,10,1000.0,0.3,400.0,beta,1.5);
|
|
|
|
|
|
var x = 2.0 * (rand()-0.5) * 15000;
|
|
var y = 2.0 * (rand()-0.5) * 15000;
|
|
var beta = rand() * 360.0;
|
|
|
|
local_weather.create_streak("Stratus",lat+get_lat(x,y,phi), lon+get_lon(x,y,phi), alt,500.0,15,1000.0,0.3,400.0,18,1000.0,0.3,400.0,beta,2.0);
|
|
|
|
}
|
|
|
|
var create_4_8_stratus_patches = func (lat, lon, alt, alpha) {
|
|
|
|
var phi = alpha * math.pi/180.0;
|
|
|
|
for (var i=0; i<16; i=i+1)
|
|
{
|
|
var x = 2.0 * (rand()-0.5) * 18000;
|
|
var y = 2.0 * (rand()-0.5) * 18000;
|
|
var beta = (rand() -0.5) * 180.0;
|
|
local_weather.create_streak("Stratus",lat+get_lat(x,y,phi), lon+get_lon(x,y,phi), alt,300.0,4,950.0,0.2,500.0,6,950.0,0.2,500.0,alpha+beta,1.0);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
var create_4_8_tstratus_patches = func (lat, lon, alt, alpha) {
|
|
|
|
var phi = alpha * math.pi/180.0;
|
|
|
|
for (var i=0; i<16; i=i+1)
|
|
{
|
|
var x = 2.0 * (rand()-0.5) * 18000;
|
|
var y = 2.0 * (rand()-0.5) * 18000;
|
|
var beta = (rand() -0.5) * 180.0;
|
|
local_weather.create_streak("Stratus (thin)",lat+get_lat(x,y,phi), lon+get_lon(x,y,phi), alt,300.0,4,950.0,0.2,500.0,6,950.0,0.2,500.0,alpha+beta,1.0);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
var create_4_8_sstratus_patches = func (lat, lon, alt, alpha) {
|
|
|
|
var phi = alpha * math.pi/180.0;
|
|
|
|
for (var i=0; i<16; i=i+1)
|
|
{
|
|
var x = 2.0 * (rand()-0.5) * 18000;
|
|
var y = 2.0 * (rand()-0.5) * 18000;
|
|
var beta = (rand() -0.5) * 180.0;
|
|
local_weather.create_streak("Stratus (structured)",lat+get_lat(x,y,phi), lon+get_lon(x,y,phi), alt,300.0,4,950.0,0.2,500.0,6,950.0,0.2,500.0,alpha+beta,1.0);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
var create_4_8_cirrostratus_patches = func (lat, lon, alt, alpha) {
|
|
|
|
var phi = alpha * math.pi/180.0;
|
|
|
|
for (var i=0; i<6; i=i+1)
|
|
{
|
|
var x = 2.0 * (rand()-0.5) * 12000;
|
|
var y = 2.0 * (rand()-0.5) * 12000;
|
|
var beta = (rand() -0.5) * 180.0;
|
|
local_weather.create_streak("Cirrostratus",lat+get_lat(x,y,phi), lon+get_lon(x,y,phi), alt,300.0,4,2500.0,0.2,600.0,4,2500.0,0.2,600.0,alpha+beta,1.0);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
var create_4_8_cirrostratus_undulatus = func (lat, lon, alt, alpha) {
|
|
|
|
local_weather.create_undulatus("Cirrostratus",lat, lon, alt,300.0,5,8000.0,0.1,400.0,40,1000.0,0.1,100.0, 1500.0, alpha,1.0);
|
|
}
|
|
|
|
|
|
var create_4_8_stratus_undulatus = func (lat, lon, alt, alpha) {
|
|
|
|
var phi = alpha * math.pi/180.0;
|
|
var x = 2.0 * (rand()-0.5) * 5000;
|
|
var y = 2.0 * (rand()-0.5) * 5000;
|
|
var tri = 1.5 + 1.5*rand();
|
|
var beta = (rand() -0.5) * 60.0;
|
|
|
|
local_weather.create_streak("Stratus",lat+get_lat(x,y+4000,phi), lon+get_lon(x,y+4000,phi), alt,500.0,10,800.0,0.25,400.0,12,2800.0,0.15,600.0,alpha+90.0+beta,tri);
|
|
|
|
local_weather.create_streak("Stratus",lat+get_lat(x,y-4000,phi), lon+get_lon(x,y-4000,phi), alt,500.0,10,800.0,0.25,400.0,12,2800.0,0.15,600.0,alpha+270.0+beta,tri);
|
|
|
|
}
|
|
|
|
var create_4_8_tstratus_undulatus = func (lat, lon, alt, alpha) {
|
|
|
|
var phi = alpha * math.pi/180.0;
|
|
var x = 2.0 * (rand()-0.5) * 5000;
|
|
var y = 2.0 * (rand()-0.5) * 5000;
|
|
var tri = 1.5 + 1.5*rand();
|
|
var beta = (rand() -0.5) * 60.0;
|
|
|
|
local_weather.create_streak("Stratus (thin)",lat+get_lat(x,y+4000,phi), lon+get_lon(x,y+4000,phi), alt,500.0,10,800.0,0.25,400.0,12,2800.0,0.15,600.0,alpha+90.0+beta,tri);
|
|
|
|
local_weather.create_streak("Stratus (thin)",lat+get_lat(x,y-4000,phi), lon+get_lon(x,y-4000,phi), alt,500.0,10,800.0,0.25,400.0,12,2800.0,0.15,600.0,alpha+270.0+beta,tri);
|
|
|
|
}
|
|
|
|
var create_4_8_sstratus_undulatus = func (lat, lon, alt, alpha) {
|
|
|
|
var phi = alpha * math.pi/180.0;
|
|
var x = 2.0 * (rand()-0.5) * 5000;
|
|
var y = 2.0 * (rand()-0.5) * 5000;
|
|
var tri = 1 + 1.5*rand();
|
|
var beta = (rand() -0.5) * 60.0;
|
|
|
|
local_weather.create_streak("Stratus (structured)",lat+get_lat(x,y,phi), lon+get_lon(x,y,phi), alt,500.0,20,900.0,0.25,400.0,12,2800.0,0.15,600.0,alpha+90.0+beta,tri);
|
|
|
|
}
|
|
|
|
|
|
var create_4_8_cirrocumulus_bank = func (lat, lon, alt, alpha) {
|
|
|
|
var phi = alpha * math.pi/180.0;
|
|
var x = 2.0 * (rand()-0.5) * 5000;
|
|
var y = 2.0 * (rand()-0.5) * 5000;
|
|
var tri = 1.5 + 1.5 *rand();
|
|
var beta = (rand() -0.5) * 60.0;
|
|
|
|
local_weather.create_streak("Cirrocumulus (cloudlet)",lat+get_lat(x,y,phi), lon+get_lon(x,y,phi), alt,400.0,12,750.0,0.25,400.0,24,750.0,0.2,400.0,alpha+90.0+beta,tri);
|
|
|
|
}
|
|
|
|
|
|
var create_4_8_cirrocumulus_undulatus = func (lat, lon, alt, alpha) {
|
|
|
|
var phi = alpha * math.pi/180.0;
|
|
var x = 2.0 * (rand()-0.5) * 5000;
|
|
var y = 2.0 * (rand()-0.5) * 5000;
|
|
var tri = 1.4 + 0.6 *rand();
|
|
var beta = (rand() -0.5) * 60.0;
|
|
|
|
local_weather.create_streak("Cirrocumulus (cloudlet)",lat+get_lat(x,y,phi), lon+get_lon(x,y,phi), alt,400.0,25,300.0,0.0,900.0,15,1400.0,0.0,300.0,alpha+90.0+beta,tri);
|
|
|
|
}
|
|
|
|
|
|
var create_4_8_cirrocumulus_streaks = func (lat, lon, alt, alpha) {
|
|
|
|
var phi = alpha * math.pi/180.0;
|
|
|
|
var beta = 90.0 + (rand() -0.5) * 30.0;
|
|
|
|
for (var i=0; i<2; i=i+1)
|
|
{
|
|
var x = 2.0 * (rand()-0.5) * 12000;
|
|
var y = 2.0 * (rand()-0.5) * 12000;
|
|
var tri = 1.5 + rand() * 1.5;
|
|
local_weather.create_streak("Cirrocumulus (cloudlet)",lat+get_lat(x,y,phi), lon+get_lon(x,y,phi), alt,300.0,10,700.0,0.1,400.0,30,700.0,0.1,400.0,alpha+beta,tri);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
var create_4_8_altocumulus_perlucidus = func (lat, lon, alt, alpha) {
|
|
|
|
var phi = alpha * math.pi/180.0;
|
|
|
|
for (var i=0; i<20; i=i+1)
|
|
{
|
|
var x = 2.0 * (rand()-0.5) * 18000;
|
|
var y = 2.0 * (rand()-0.5) * 18000;
|
|
var beta = (rand() -0.5) * 180.0;
|
|
local_weather.create_streak("Altocumulus perlucidus",lat+get_lat(x,y,phi), lon+get_lon(x,y,phi), alt,300.0,4,1400.0,0.1,900.0,4,1400.0,0.1,900.0,alpha+beta,1.0);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
var create_4_8_alttstratus_streaks = func (lat, lon, alt, alpha) {
|
|
|
|
var phi = alpha * math.pi/180.0;
|
|
|
|
for (var i=0; i<10; i=i+1)
|
|
{
|
|
var x = 2.0 * (rand()-0.5) * 15000;
|
|
var y = 2.0 * (rand()-0.5) * 15000;
|
|
var beta = (rand() -0.5) * 20.0;
|
|
var m = 20 + int(rand() * 20);
|
|
var n = 3 + int(rand() * 3);
|
|
|
|
local_weather.create_streak("Cirrocumulus (cloudlet)",lat+get_lat(x,y,phi), lon+get_lon(x,y,phi), alt,600.0,m,550.0,0.0,700.0,n,550.0,0.0,450.0,alpha+beta+90,1.0);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
var create_4_8_alttstratus_patches = func (lat, lon, alt, alpha) {
|
|
|
|
var phi = alpha * math.pi/180.0;
|
|
|
|
for (var i=0; i<14; i=i+1)
|
|
{
|
|
var x = 2.0 * (rand()-0.5) * 18000;
|
|
var y = 2.0 * (rand()-0.5) * 18000;
|
|
var beta = (rand() -0.5) * 180.0;
|
|
local_weather.create_streak("Cirrocumulus (cloudlet)",lat+get_lat(x,y,phi), lon+get_lon(x,y,phi), alt,600.0,10,550.0,0.0,250.0,8,550.0,0.0,250.0,alpha+beta,1.0);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
var create_4_8_stratocumulus = func (lat, lon, alt, alpha) {
|
|
|
|
if (local_weather.detailed_clouds_flag == 1)
|
|
{
|
|
create_detailed_stratocumulus_bank(lat, lon, alt, alpha);
|
|
}
|
|
else
|
|
{
|
|
create_stratocumulus_bank(lat, lon, alt, alpha);
|
|
}
|
|
|
|
}
|
|
|
|
|
|
var create_2_8_stratus = func (lat, lon, alt, alpha) {
|
|
|
|
var phi = alpha * math.pi/180.0;
|
|
|
|
for (var i=0; i<8; i=i+1)
|
|
{
|
|
var x = 2.0 * (rand()-0.5) * 18000;
|
|
var y = 2.0 * (rand()-0.5) * 18000;
|
|
var beta = (rand() -0.5) * 180.0;
|
|
local_weather.create_streak("Stratus",lat+get_lat(x,y,phi), lon+get_lon(x,y,phi), alt,300.0,5,900.0,0.2,500.0,7,900.0,0.2,500.0,alpha+beta,1.0);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
var create_2_8_tstratus = func (lat, lon, alt, alpha) {
|
|
|
|
var phi = alpha * math.pi/180.0;
|
|
|
|
for (var i=0; i<8; i=i+1)
|
|
{
|
|
var x = 2.0 * (rand()-0.5) * 18000;
|
|
var y = 2.0 * (rand()-0.5) * 18000;
|
|
var beta = (rand() -0.5) * 180.0;
|
|
local_weather.create_streak("Stratus (thin)",lat+get_lat(x,y,phi), lon+get_lon(x,y,phi), alt,300.0,5,900.0,0.2,500.0,7,900.0,0.2,500.0,alpha+beta,1.0);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
var create_2_8_sstratus = func (lat, lon, alt, alpha) {
|
|
|
|
var phi = alpha * math.pi/180.0;
|
|
|
|
for (var i=0; i<8; i=i+1)
|
|
{
|
|
var x = 2.0 * (rand()-0.5) * 18000;
|
|
var y = 2.0 * (rand()-0.5) * 18000;
|
|
var beta = (rand() -0.5) * 180.0;
|
|
local_weather.create_streak("Stratus (structured)",lat+get_lat(x,y,phi), lon+get_lon(x,y,phi), alt,300.0,5,900.0,0.2,500.0,7,900.0,0.2,500.0,alpha+beta,1.0);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
var create_2_8_sstratus_streak = func (lat, lon, alt, alpha) {
|
|
|
|
var phi = alpha * math.pi/180.0;
|
|
|
|
var x = 2.0 * (rand()-0.5) * 6000;
|
|
var y = 2.0 * (rand()-0.5) * 6000;
|
|
var beta = (rand() -0.5) * 180.0;
|
|
|
|
local_weather.create_streak("Stratus (structured)",lat+get_lat(x,y,phi), lon+get_lon(x,y,phi), alt,100.0,20,1800.0,0.1,500.0,5,1700.0,0.0,500.0,alpha+beta,1.2);
|
|
|
|
}
|
|
|
|
var create_2_8_cirrostratus = func (lat, lon, alt, alpha) {
|
|
|
|
var phi = alpha * math.pi/180.0;
|
|
|
|
for (var i=0; i<3; i=i+1)
|
|
{
|
|
var x = 2.0 * (rand()-0.5) * 12000;
|
|
var y = 2.0 * (rand()-0.5) * 12000;
|
|
var beta = (rand() -0.5) * 180.0;
|
|
local_weather.create_streak("Cirrostratus",lat+get_lat(x,y,phi), lon+get_lon(x,y,phi), alt,300.0,4,2300.0,0.2,600.0,4,2300.0,0.2,600.0,alpha+beta,1.0);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
var create_2_8_cirrocumulus = func (lat, lon, alt, alpha) {
|
|
|
|
var phi = alpha * math.pi/180.0;
|
|
|
|
for (var i=0; i<25; i=i+1)
|
|
{
|
|
var x = 2.0 * (rand()-0.5) * 18000;
|
|
var y = 2.0 * (rand()-0.5) * 18000;
|
|
var beta = (rand() -0.5) * 180.0;
|
|
local_weather.create_streak("Cirrocumulus (cloudlet)",lat+get_lat(x,y,phi), lon+get_lon(x,y,phi), alt,300.0,3,600.0,0.1,500.0,3,600.0,0.1,500.0,alpha+beta,1.0);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
var create_2_8_alttstratus = func (lat, lon, alt, alpha) {
|
|
|
|
var phi = alpha * math.pi/180.0;
|
|
|
|
for (var i=0; i<4; i=i+1)
|
|
{
|
|
var x = 2.0 * (rand()-0.5) * 18000;
|
|
var y = 2.0 * (rand()-0.5) * 18000;
|
|
var beta = (rand() -0.5) * 180.0;
|
|
local_weather.create_streak("Cirrocumulus (cloudlet)",lat+get_lat(x,y,phi), lon+get_lon(x,y,phi), alt,600.0,10,550.0,0.0,250.0,8,550.0,0.0,250.0,alpha+beta,1.0);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
var create_2_8_altocumulus_streaks = func (lat, lon, alt, alpha) {
|
|
|
|
var phi = alpha * math.pi/180.0;
|
|
|
|
for (var i=0; i<2; i=i+1)
|
|
{
|
|
var x = 2.0 * (rand()-0.5) * 10000;
|
|
var y = 2.0 * (rand()-0.5) * 10000;
|
|
var tri = 1.0 + rand();
|
|
|
|
local_weather.create_streak("Altocumulus",lat+get_lat(x,y,phi), lon+get_lon(x,y,phi), alt,1500.0,22,750.0,0.2,1000.0,8,750.0,0.2,1000.0,alpha ,tri);
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}
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}
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var create_1_8_cirrocumulus = func (lat, lon, alt, alpha) {
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var phi = alpha * math.pi/180.0;
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for (var i = 0; i < 2; i = i + 1)
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{
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var x = 2.0 * (rand()-0.5) * 10000;
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var y = -6000 + i * 12000 + 2.0 * (rand()-0.5) * 1000;
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var beta = rand() * 90;
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var alt_variation = rand() * 2000;
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var path = local_weather.select_cloud_model("Cirrocumulus", "large");
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compat_layer.create_cloud(path, lat + get_lat(x,y,phi), lon+get_lon(x,y,phi), alt + alt_variation,alpha+ beta);
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}
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}
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var create_thunderstorm_scenario = func (lat, lon, alt, alpha) {
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var phi = alpha * math.pi/180.0;
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x = 2.0 * (rand()-0.5) * 12000;
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y = 2.0 * (rand()-0.5) * 12000;
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if (rand() > 0.6)
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{create_medium_thunderstorm(lat +get_lat(x,y,phi), lon + get_lon(x,y,phi), alt, alpha);}
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else
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{create_small_thunderstorm(lat +get_lat(x,y,phi), lon + get_lon(x,y,phi), alt, alpha);}
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if (rand() > 0.5) # we do a second thunderstorm
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{
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x = 2.0 * (rand()-0.5) * 12000;
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y = 2.0 * (rand()-0.5) * 12000;
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if (rand() > 0.8)
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{create_medium_thunderstorm(lat+get_lat(x,y,phi), lon+get_lon(x,y,phi), alt, alpha);}
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else
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{create_small_thunderstorm(lat+get_lat(x,y,phi), lon+get_lon(x,y,phi), alt, alpha);}
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}
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# the convective layer
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var strength = 0.3;
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var n = int(4000 * strength) * 0.5;
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local_weather.cumulus_exclusion_layer(lat, lon, alt, n, 20000.0, 20000.0, alpha, 0.3,2.5 , size(elat), elat, elon, erad);
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# some turbulence in the convection layer
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local_weather.create_effect_volume(3, lat, lon, 20000.0, 20000.0, alpha, 0.0, alt+3000.0, -1, -1, -1, 0.4, -1,0 ,-1);
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}
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var create_stratocumulus_bank = func (lat, lon, alt, alpha) {
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var phi = alpha * math.pi/180.0;
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var x = 2.0 * (rand()-0.5) * 10000;
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var y = 2.0 * (rand()-0.5) * 10000;
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var tri = 1.5 + 1.5*rand();
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var beta = (rand() -0.5) * 60.0;
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local_weather.create_streak("Cumulus",lat+get_lat(x,y+6000,phi), lon+get_lon(x,y+6000,phi), alt,500.0,15,600.0,0.2,400.0,20,600.0,0.2,400.0,alpha+90.0+beta,tri);
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|
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local_weather.create_streak("Cumulus",lat+get_lat(x,y-6000,phi), lon+get_lon(x,y-6000,phi), alt,500.0,15,600.0,0.2,400.0,20,600.0,0.2,400.0,alpha+270.0+beta,tri);
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}
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var create_detailed_stratocumulus_bank = func (lat, lon, alt, alpha) {
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var phi = alpha * math.pi/180.0;
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var x = 2.0 * (rand()-0.5) * 6000;
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var y = 2.0 * (rand()-0.5) * 6000;
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var tri = 1.5 + 1.5*rand();
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|
var beta = (rand() -0.5) * 60.0;
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|
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var alt_offset = 0.5 * local_weather.cloud_vertical_size_map["Cumulus"] * ft_to_m;
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|
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local_weather.create_streak("Stratocumulus",lat+get_lat(x,y+7500,phi), lon+get_lon(x,y+7500,phi), alt + alt_offset,500.0,12,1000.0,0.1,400.0,15,1000.0,0.1,400.0,alpha+90.0+beta,tri);
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|
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|
local_weather.create_streak("Stratocumulus",lat+get_lat(x,y-7500,phi), lon+get_lon(x,y-7500,phi), alt + alt_offset,500.0,12,1000.0,0.1,400.0,15,1000.0,0.1,400.0,alpha+270.0+beta,tri);
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|
|
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local_weather.create_streak("Stratocumulus bottom",lat+get_lat(x,y+5250,phi), lon+get_lon(x,y+5250,phi), alt,0.0,10,700.0,0.2,400.0,15,700.0,0.0,400.0,alpha+90.0+beta,tri);
|
|
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|
local_weather.create_streak("Stratocumulus bottom",lat+get_lat(x,y-5250,phi), lon+get_lon(x,y-5250,phi), alt,0.0,10,700.0,0.2,400.0,15,700.0,0.0,400.0,alpha+270.0+beta,tri);
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|
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|
}
|
|
|
|
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|
var create_cloud_bank = func (type, lat, lon, alt, x1, x2, height, n, alpha) {
|
|
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|
local_weather.create_streak(type,lat,lon, alt+ 0.5* height,height,n,0.0,0.0,x1,1,0.0,0.0,x2,alpha,1.0);
|
|
|
|
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|
}
|
|
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|
var create_small_thunderstorm = func(lat, lon, alt, alpha) {
|
|
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|
var scale = 0.7 + rand() * 0.3;
|
|
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|
local_weather.create_layer("Stratus", lat, lon, alt, 1000.0, 4000.0 * scale, 4000.0 * scale, 0.0, 1.0, 0.3, 1, 1.0);
|
|
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|
local_weather.create_layer("Cumulonimbus (cloudlet)", lat, lon, alt+2000, 15000.0, 3000.0 * scale, 3000.0 * scale, 0.0, 2.0, 0.0, 0, 0.0);
|
|
|
|
# set the exclusion region for the Cumulus layer
|
|
append(elat, lat); append(elon, lon); append(erad, 4000.0 * scale * 1.2);
|
|
|
|
# set precipitation, visibility, updraft and turbulence in the cloud
|
|
|
|
local_weather.create_effect_volume(1, lat, lon, 4000.0 * 0.7 * scale, 4000.0 * 0.7 * scale , 0.0, 0.0, 20000.0, 600.0, 0.8, -1, 0.6, 15.0,1 ,-1);
|
|
|
|
}
|
|
|
|
var create_medium_thunderstorm = func(lat, lon, alt, alpha) {
|
|
|
|
var scale = 0.7 + rand() * 0.3;
|
|
|
|
local_weather.create_layer("Nimbus", lat, lon, alt, 500.0, 6000.0 * scale, 6000.0 * scale, 0.0, 1.0, 0.3, 1, 1.5);
|
|
|
|
#local_weather.create_layer("Stratus", lat, lon, alt+1500, 1000.0, 5500.0 * scale, 5500.0 * scale, 0.0, 1.0, 0.3, 0, 0.0);
|
|
local_weather.create_hollow_layer("Stratus", lat, lon, alt+1500, 1000.0, 5500.0 * scale, 5500.0 * scale, 0.0, 1.0, 0.3, 0.5);
|
|
|
|
local_weather.create_layer("Fog (thick)", lat, lon, alt+4000, 6000.0, 3400.0 * scale, 3400.0 * scale, 0.0, 1.5, 0.3, 0, 0.0);
|
|
|
|
|
|
local_weather.create_layer("Cumulonimbus (cloudlet)", lat, lon, alt+10000, 10000.0, 3600.0 * scale, 3600.0 * scale, 0.0, 1.2, 0.0, 0, 0.0);
|
|
|
|
# set the exclusion region for the Cumulus layer
|
|
append(elat, lat); append(elon, lon); append(erad, 6000.0 * scale * 1.2);
|
|
|
|
# set precipitation, visibility, updraft and turbulence in the cloud
|
|
|
|
local_weather.create_effect_volume(1, lat, lon, 6000.0 * 0.7 * scale, 6000.0 * 0.7 * scale , 0.0, 0.0, 20000.0, 500.0, 1.0, -1, 0.8, 20.0,1,-1 );
|
|
|
|
}
|
|
|
|
var create_big_thunderstorm = func(lat, lon, alt, alpha) {
|
|
|
|
var phi = alpha * math.pi/180.0;
|
|
|
|
var scale = 0.8;
|
|
|
|
local_weather.create_layer("Nimbus", lat, lon, alt, 500.0, 7500.0 * scale, 7500.0 * scale, 0.0, 1.0, 0.25, 1, 1.5);
|
|
|
|
#local_weather.create_layer("Stratus", lat, lon, alt+1500, 1000.0, 7200.0 * scale, 7200.0 * scale, 0.0, 1.0, 0.3, 0, 0.0);
|
|
local_weather.create_hollow_layer("Stratus", lat, lon, alt+1500, 1000.0, 7200.0 * scale, 7200.0 * scale, 0.0, 1.0, 0.3, 0.7);
|
|
|
|
local_weather.create_layer("Fog (thick)", lat, lon, alt+5000, 3000.0, 5500.0 * scale, 5500.0 * scale, 0.0, 0.7, 0.3, 0, 0.0);
|
|
|
|
|
|
local_weather.create_layer("Fog (thick)", lat+get_lat(0,-1000,phi), lon+get_lon(0,-1000,phi), alt+12000, 4000.0, 6300.0 * scale, 6300.0 * scale, 0.0, 0.7, 0.3, 0, 0.0);
|
|
|
|
#local_weather.create_layer("Stratus", lat+get_lat(0,-2000,phi), lon+get_lon(0,-2000,phi), alt+17000, 1000.0, 7500.0 * scale, 7500.0 * scale, 0.0, 1.0, 0.3, 0, 0.0);
|
|
local_weather.create_hollow_layer("Stratus", lat+get_lat(0,-2000,phi), lon+get_lon(0,-2000,phi), alt+17000, 1000.0, 7500.0 * scale, 7500.0 * scale, 0.0, 1.0, 0.3, 0.5);
|
|
|
|
#local_weather.create_layer("Stratus", lat+get_lat(0,-3000,phi), lon+get_lon(0,-3000,phi), alt+20000, 1000.0, 9500.0 * scale, 9500.0 * scale, 0.0, 1.0, 0.3, 0, 0.0);
|
|
local_weather.create_hollow_layer("Stratus", lat+get_lat(0,-3000,phi), lon+get_lon(0,-3000,phi), alt+20000, 1000.0, 9500.0 * scale, 9500.0 * scale, 0.0, 1.0, 0.3, 0.5);
|
|
|
|
local_weather.create_layer("Stratus (thin)", lat+get_lat(0,-4000,phi), lon+get_lon(0,-4000,phi), alt+24000, 1000.0, 11500.0 * scale, 11500.0 * scale, 0.0, 2.0, 0.3, 0, 0.0);
|
|
|
|
# set the exclusion region for the Cumulus layer
|
|
append(elat, lat); append(elon, lon); append(erad, 7500.0 * scale * 1.2);
|
|
|
|
local_weather.create_effect_volume(1, lat, lon, 7500.0 * 0.7 * scale, 7500.0 * 0.7 * scale , 0.0, 0.0, 20000.0, 500.0, 1.0, -1, 1.0, 25.0,1,-1 );
|
|
|
|
}
|
|
|
|
###################
|
|
# helper functions
|
|
###################
|
|
|
|
var calc_geo = func(clat) {
|
|
|
|
lon_to_m = math.cos(clat*math.pi/180.0) * lat_to_m;
|
|
m_to_lon = 1.0/lon_to_m;
|
|
}
|
|
|
|
var get_lat = func (x,y,phi) {
|
|
|
|
return (y * math.cos(phi) - x * math.sin(phi)) * m_to_lat;
|
|
}
|
|
|
|
var get_lon = func (x,y,phi) {
|
|
|
|
return (x * math.cos(phi) + y * math.sin(phi)) * m_to_lon;
|
|
}
|
|
|
|
|
|
var get_n = func(strength) {
|
|
|
|
return int(4000 * strength);
|
|
}
|
|
|
|
|
|
##################################
|
|
# continuity condition of pressure
|
|
##################################
|
|
|
|
var adjust_p = func (p) {
|
|
|
|
if (last_pressure == 0.0) {last_pressure = p; return p;}
|
|
|
|
var pressure_difference = p - last_pressure;
|
|
|
|
if (pressure_difference > 2.0) {var pout = last_pressure + 3.0;}
|
|
else if (pressure_difference < -2.0) {var pout = last_pressure - 3.0;}
|
|
else {var pout = p;}
|
|
|
|
last_pressure = pout;
|
|
|
|
return pout;
|
|
}
|
|
|
|
|
|
###################
|
|
# global variables
|
|
###################
|
|
|
|
|
|
|
|
var lat_to_m = 110952.0; # latitude degrees to meters
|
|
var m_to_lat = 9.01290648208234e-06; # meters to latitude degrees
|
|
var ft_to_m = 0.30480;
|
|
var m_to_ft = 1.0/ft_to_m;
|
|
var inhg_to_hp = 33.76389;
|
|
var hp_to_inhg = 1.0/inhg_to_hp;
|
|
|
|
var last_pressure = 0.0;
|
|
|
|
var lon_to_m = 0.0; # needs to be calculated dynamically
|
|
var m_to_lon = 0.0; # we do this on startup
|
|
var lw = "/local-weather/";
|
|
|
|
var elat = [];
|
|
var elon = [];
|
|
var erad = [];
|