Model:
FMI (Hirlam Model from finnish meteorological institute)
Ververst:
4 times per day, from 08:00, 14:00, 20:00, and 00:00 UTC
Greenwich Mean Time:
12:00 UTC = 13:00 MET
Resolutie:
0.068025° x 0.068025°
Parameter:
Neerslag in Europa in mm
Beschrijving:
De kaart "Neerslag" laat 6-uurlijkse model-neerslag in mm zien.
Met isolijnen worden contouren van verschillende neerslaghoeveelheden getoond.
De modelberekeningen zijn in veel gevallen te gebruiken als verwachte
radarbeelden. In frontensituaties is het model behoorlijk nauwkeurig; in
buiensituaties wordt het lastiger. Desondanks is het een zeer belangrijk
hulpmiddel voor meteorologen, maar ook voor iedereen die neerslagrisico's
wil inschatten.
FMI:
FMI
At the Finnish Meteorological Institute, results from several numerical weather prediction models are utilized. Most of all, these include products from the European Centre of Medium Range Forecasts (ECMWF), located in Reading in the United Kingdom. For shorter range forecasts, more detailed forecasts are produced in-house using a limited area models (LAMs) called HIRLAM and HARMONIE, which are being developed by FMI as an international co-operation programme with a number of European countries.
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).
