ISSN 1000-0526
CN 11-2282/P
CN 11-2282/P
The Performance Verification of the MediumRange Forecast for T639 and ECMWF and Japan Model from Dec. 2008 to Feb. 2009
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Abstract:
It was verified and compared that the performance of T639, ECMWF and Japan model about their mediumrange forecasting during Dec. 2008 to Feb. 2009. The result shows that the three models have good performances for the evolvement and adjus tment of atmospheric circulation situation in Asia middle and high latitude area , and also for the temperature trends of 850hPa. The prediction error of ECMWF m odel is minimal in that of the three models. They all show significant indicatio n to forecast the transition and disaster weather processes, and have successful ly predicted the atmospheric circulation situation and main effecting synoptic s ystems of the three cold wave processes on a national scale, and continuous rain fall weather process occurring in the middlelower reaches of Yangtze River.
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