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Archief - NAVGEM - RV 850 hPa P

Termijn
Dag Maand Jaar
Modelrun
di 02.04 00 UTC

RV 850 hPa NAVGEM Model

Model:

NAVGEM (Navy Global Environmental Model) is a global numerical weather prediction computer model run by NOAA. It replaced NOGAPS as the prime model in the middle of February 2013 at the FNMOC Weather model synoptic site. NOGAPS: Global weather forecast model from the "Fleet Numerical Meteorology and Oceanography Center" (USA)

Ververst:
2 times per day, from 10:00 and 23:00 UTC
Greenwich Mean Time:
12:00 UTC = 13:00 MET
Resolutie:
1.0° x 1.0°
Parameter:
Relatieve Luchtvochtigheid op 850 hPa
Beschrijving:
Deze kaart laat de berekende relatieve luchtvochtigheid zien op 850 hPa. Globaal gezegd stijgt lucht op aan de voorkant van troggen en bij fronten. De opstijgende lucht koelt af. Daarbij neemt de relatieve luchtvochtigheid toe. Op een gegeven moment condenseert er vocht en ontstaat er wolkenvorming. Hoge vochtwaardes op 850 hPa - dat is op ca. 1500 m boven zeeniveau - hangen meestal samen met stijgings- en neerslag-actieve gebieden.
NWP:
Numerical weather prediction uses current weather conditions as input into mathematical models of the atmosphere to predict the weather. Although the first efforts to accomplish this were done in the 1920s, it wasn't until the advent of the computer and computer simulation that it was feasible to do in real-time. Manipulating the huge datasets and performing the complex calculations necessary to do this on a resolution fine enough to make the results useful requires the use of some of the most powerful supercomputers in the world. A number of forecast models, both global and regional in scale, are run to help create forecasts for nations worldwide. Use of model ensemble forecasts helps to define the forecast uncertainty and extend weather forecasting farther into the future than would otherwise be possible.

Wikipedia, Numerical weather prediction, http://en.wikipedia.org/wiki/Numerical_weather_prediction(as of Feb. 9, 2010, 20:50 UTC).
RV 850 hPa NAVGEM di 02.04.2024 00 UTC
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