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di 19.03 09 UTC

Hoogte/Temp. 500 hPa RHMC Model

Model:

RHMC: Global weather forecast model from the "Hydrometeorological Center of Russia"

Ververst:
2 times per day, from 10:00 and 23:00 UTC
Greenwich Mean Time:
12:00 UTC = 13:00 MET
Resolutie:
2.5° x 2.5°
Parameter:
Geopotentiaalhoogte en Temperatuur op 500 hPa
Beschrijving:
Op deze kaart herkent men duidelijk de lange golven (met troggen/ruggen). Zij bepalen voor een belangrijk deel het weer aan de grond ter plaatse. (droog, warm/ nat, koud). De lange golven sturen/hangen nauw samen met de kleinere synoptische verstoringen zoals fronten, depressies en buienlijnen. Daardoor geven hoogtekaarten een goed overzicht van de dynamiek in de atmosfeer.
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).



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