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Weather: Difference between revisions
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Add slightly newer glider screenshot, add year to old screenshots
(Italicisation (snow and rain on ground), start AW gallery) |
(Add slightly newer glider screenshot, add year to old screenshots) |
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FlightGear simulates '''weather''' through one of two weather engines, that provide real weather fetch, predefined weather scenarios, [[3D clouds]] and much more. Weather simulation is not easy, and setting up these systems for the most general needs will be explained below, as well as the features they provide. | FlightGear simulates '''weather''' through one of two weather engines, that provide real weather fetch, predefined weather scenarios, [[3D clouds]] and much more. Weather simulation is not easy, and setting up these systems for the most general needs will be explained below, as well as the features they provide. | ||
[[File:Local_weather_0.85_01.jpg|thumb|450px|right|Advanced Weather clouds over the mountains]] | [[File:Local_weather_0.85_01.jpg|thumb|450px|right|Advanced Weather clouds over the mountains from 2010]] | ||
== Fundamentals == | == Fundamentals == | ||
[[File:Weather scenario selection.png|thumb|250px|Weather scenario selection in the main Weather dialog. You can also see where the METAR is shown, and can be edited in ''Manual input'' mode]] | [[File:Weather scenario selection.png|thumb|250px|Weather scenario selection in the main Weather dialog. You can also see where the METAR is shown, and can be edited in ''Manual input'' mode]] | ||
[[File:Windboundaries.png|thumb|250px|A drawing giving an idea of what's the boundary/aloft layer separation (drawn in red)]] | [[File:Windboundaries.png|thumb|250px|A drawing giving an idea of what's the boundary/aloft layer separation (drawn in red)]] | ||
[[File: | [[File:ASW20_summerday1.jpg|thumb|350px|Advanced Weather can simulate the conditions for [[soaring]] (2014)]] | ||
Weather is the state of the atmosphere, especially the {{wikipedia|troposphere}}, at a given time for a given place. Calculating the complete atmosphere or even a small part of it is extremely demanding in computing power. Hence, FlightGear calculates the state of the atmosphere only for a vertical line beginning at earth's center straight through your aircraft up to an appropriate altitude. For every point along this line, the following fundamental parameters are calculated: | Weather is the state of the atmosphere, especially the {{wikipedia|troposphere}}, at a given time for a given place. Calculating the complete atmosphere or even a small part of it is extremely demanding in computing power. Hence, FlightGear calculates the state of the atmosphere only for a vertical line beginning at earth's center straight through your aircraft up to an appropriate altitude. For every point along this line, the following fundamental parameters are calculated: | ||
* '''temperature''': usually in °C. | * '''temperature''': usually in °C. | ||
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[[File:Advanced weather selected.png|thumb|350px|Advanced Weather selected in the main Weather dialog]] | [[File:Advanced weather selected.png|thumb|350px|Advanced Weather selected in the main Weather dialog]] | ||
[[File:AW Weather patterns.jpg|thumb|Weather pattern in the Advanced Weather scenarios. You can see the various airmasses.]] | [[File:AW Weather patterns.jpg|thumb|Weather pattern in the Advanced Weather scenarios. You can see the various airmasses.]] | ||
[[File:Clouds-nimbostratus.jpg|thumb|400px|It can't rain all the tile]] | [[File:Clouds-nimbostratus.jpg|thumb|400px|It can't rain all the tile. (2010)]] | ||
[[File:Advanced weather tile selection mode.png|thumb|Tile selection mode from Advanced Weather settings]] | [[File:Advanced weather tile selection mode.png|thumb|Tile selection mode from Advanced Weather settings]] | ||
''If you're in a hurry, please read at least the [[#Quirks|Quirks]] section, for your own good''. | ''If you're in a hurry, please read at least the [[#Quirks|Quirks]] section, for your own good''. | ||