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Weather: Difference between revisions
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* The weather scenarios that describe the {{Wikipedia|air mass|airmasses}} around your starting position, like reading a {{Wikipedia|Weather map|weather map}} around a position, are the ''actual simulation''. The weather changes as you move, or with time. Weather simulations are driven by terrain shape and surface materials, as well as other things like | * The weather scenarios that describe the {{Wikipedia|air mass|airmasses}} around your starting position, like reading a {{Wikipedia|Weather map|weather map}} around a position, are the ''actual simulation''. The weather changes as you move, or with time. Weather simulations are driven by terrain shape and surface materials, as well as other things like sunlight. Enable ''Weather > Advanced settings > Terrain presampling'' and ''terrain effects'' (may cause slowdown in extremely old CPUs). The results of each scenario depend on the terrain around you. Simulated scenarios: core high pressure region (fair weather), high pressure region, border of a high pressure region, border of a low pressure region, low pressure region, and warm sector. You can tell which ones these are as ''Weather > Advanced settings > Tile selection'' is automatically set to ''realistic weather''. | ||
* "''Live data''" (live METAR) is not a simulation. No live weather service is - at any location you get weather belonging to one time of day, one day, one season, one long-term weather pattern like drought. Simulate another time of day, and it's wrong. Rare weather is unlikely when you fly. METAR data is also lacking and imperfect. | * "''Live data''" (live METAR) is not a simulation. No live weather service is - at any location you get weather belonging to one time of day, one day, one season, one long-term weather pattern like drought. Simulate another time of day, and it's wrong. Rare weather is unlikely when you fly. METAR data is also lacking and imperfect. | ||
* You can press "''Apply''" to get a new set of values for randomised properties. Atmosphere state is very complex. There are many different possibilities for scenarios that describe airmasses around you. There are way more properties than is presented in the UI, or can be presented without people accidentally making physically impossible combinations. These properties are randomised at each time AW starts. | * You can press "''Apply''" to get a new set of values for randomised properties. Atmosphere state is very complex. There are many different possibilities for scenarios that describe airmasses around you. There are way more properties than is presented in the UI, or can be presented without people accidentally making physically impossible combinations. These properties are randomised at each time AW starts. | ||
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<gallery mode="packed"> | <gallery mode="packed"> | ||
File: | File:Pterosaur over Mount Waialeale on the Island of Kauai, Hawaii ( Flightgear 2019.x ) 01.jpg|alt=Pterosaur over Mount Waialeale on the Island of Kauai, Hawaii ( Flightgear 2019.x ) | ||
File: | File:Lightning strike illuminating nearby clouds - Flightgear 2019.x.jpg|alt=Lightning strike illuminating nearby clouds - Flightgear | ||
File: | File:SOTM 2018-09 Back from work honey by GinGin.jpg | ||
File: | File:Eurocopter EC135 over wet volumetric grass in Innsbruck Airport (LOWI), Austria (Flightgear 2018.x).jpg|alt=Puddles from previous rain. Eurocopter EC135 over wet volumetric grass in Innsbruck Airport (LOWI), Austria (Flightgear 2018.x)|Puddles from previous rain | ||
File: | File:Gazelle on the slopes of a shield volcano in Hawaii showing overlay detail on ground (FlightGear 2018.x).jpg|Wisps of volumetric cloud | ||
File: | File:Bell 412 and clouds on the slope of Mount Etna in Sicily (Flightgear 2019.x).jpg | ||
File: | File:SOTM 2018-12 Stormy Day by GinGin.jpg | ||
File: | File:Shuttle launch at sunrise.jpg | ||
File: | File:Bell 412 over a snowcapped Mount Etna in Sicily in winter (Flightgear 2019.x) 02.jpg | ||
File: | File:Bell 412 over a snowcapped Mount Etna, Sicily - Flightgear 2019.x.jpg | ||
File: | File:SOTM 2020-01 The Goddness of Love & Beauty in iridescence by eatdirt.jpg|Scattering by ice crystals | ||
File:C172p-frost.jpg|Frost from cool external temperatures | File:C172p-frost.jpg|Frost from cool external temperatures | ||
File: | File:EC135 Sea of fog.jpg|Ground fog | ||
File:Lightning05.jpg|Lightning | File:Lightning05.jpg|Lightning | ||
File: | File:Kilauea Lava fountain and Sun halo in Hawaii (Flightgear 2018.3).jpg|alt=Ice crystals from a 22 degree halo. The halo is red as the light reaching it is red (out-scattering). Flightgear.|Ice crystals from a 22 degree halo. The halo is red as the light reaching it is red (out-scattering) | ||
File: | File:Pterosaur over Blue Mountains in Australia with signature blue haze (Flightgear 2020.x).jpg|alt=Pterosaur over Blue Mountains in Australia with signature blue haze (Flightgear 2020.x)|Smog particle modelling: Blue haze from organic smog released by Eucalyptus trees in the Blue Mountains of Australia | ||
File: | File:SOTM 2019-03 Magical cloud lighting by vnts.jpg|alt=Magical cloud lighting by vnts in FlightGear | ||
File: | File:SOTM 2019-07 Angelic Return by GinGin.jpg|alt=Angelic Return (Space Shuttle) by GinGin in FlightGear. | ||
File: | File:SOTM 2020-03 Mystic Misty by GinGin (Space Shuttle on launchpad, Florida).jpg|alt=Mystic Misty by GinGin (Space Shuttle on launchpad, Florida) in FlightGear. | ||
File: | File:SOTM 2019-07 Grass Greeting in Banjul by eatdirt.jpg|alt=Grass swaying from the local windfield in Banjul (Space Shuttle) by eatdirt in FlightGear.|Grass swaying from the local windfield | ||
File: | File:C182 at dawn.jpg|alt=C182 at dawn in FlightGear. | ||
File: | File:Pterosaur over Blue Mountains near Katoomba in Australia (FlightGear 2020.x).jpg|alt=Note layer of moisture modeled by Advanced weather Pterosaur over Blue Mountains near Katoomba in Australia (FlightGear 2020.x)|Note layer of moisture modeled by Advanced weather | ||
File: | File:SOTM 2018-11 Morning Mountain flight by StuartC.jpg|alt=Snow accumulates more on slopes that are less steep. Morning Mountain flight in FlightGear|Snow accumulates more on slopes that are less steep | ||
File:Sun dog and ice halo, from top of Mount Herdubreid volcano in Iceland (Flightgear 2020.x).jpg|alt=Sun halo (22 degree ring), Sun pillar (vertical line through the sun), and Sun dogs (left and right of the sun). FlightGear 2020.3 LTS|Sun halo (22 degree ring), Sun pillar (vertical line through the sun), and Sun dogs (left and right of the sun) | |||
File:Aurora and ice halo (Flightgear 2020.x).jpg|alt=Aurora and Ice halo. The sun is below the horizon. The rays of the low sun are red. making the halo red. FlightGear 2020.x.|Aurora and Ice halo. The sun is below the horizon. The rays of the low sun are red. making the halo red | |||
File:Rainbow in iceland (Flightgear 2020.x).jpg|alt=Rainbow in iceland (Flightgear 2020.x) | |||
File:Madrid at dawn in FlightGear 2020.x with the 1st world-build of OSM2City.jpg|alt=Madrid at dawn in FlightGear 2020.x with the 1st world-build of OSM2City| Dawn haze. Morning fog in the distance has structure - it's patchy. There is some smog. | |||
File:Tidal flats at low tide in Morecambe Bay in England (Flightgear 2020.x) 04.jpg|alt=Tidal flats at low tide in Morecambe Bay in England (Flightgear 2020.x) | |||
File:Clouds in the mountains of Corsica (FlightGear 2020.x).jpg|alt=Clouds in the mountains of Corsica (FlightGear 2020.x) | |||
File:Iceland in FlightGear 2020 01 Volcanic plume and snow (Aerospatiale Alouette III).jpg|alt=Iceland in FlightGear 2020 01 Volcanic plume and snow (Aerospatiale Alouette III)| [[Volcanoes|Volcanic]] eruptions have turbulent windfields | |||
File:The Jet Nest sculpture at Keflavik International Airport (BIKF) in Iceland (Flightgear 2020.x) 1024 04.jpg|alt=The Jet Nest sculpture at Keflavik International Airport (BIKF) in Iceland (Flightgear 2020.x) | |||
File:Aurora with low sun.jpg|alt=Aurora with low sun in FlightGear. | |||
</gallery> | </gallery> | ||