Error Analysis and Correction of T639 Forecast Temperature Products
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Abstract:
As the T639 numerical forecasting model has a certain deviation in the specific regional forecast, in order to make better use of this model to make the regional station temperature forecast in Jimo, Shandong, we developed a revised method, which can be put into the actual operation to improve the forecast accuracy and relative error of daily maximum (minimum) air temperature, using the T639 2 meter temperature numerical forecast products during 24 hours and the observations in 8 regional automatic stations in Jimo from January 2013 to December 2015 Based on the contrast verification, it is concluded that the comprehensive correction is the most accurate method among the seasonal correction, comprehensive correction, wind direction correction, and wind velocity correction, which is combined with wind direction and wind velocity forecast and terrain zoning.
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Supported by:Beijing E-Tiller Technology Development Co., Ltd.
Supported by:Beijing E-Tiller Technology Development Co., Ltd.