Convective initiation forecasting based on FY-2G geostationary satellite data
Bu Maobin1,2, Bai Jie2, Zhou Zhuhua2, Fang Hanxian1
1.National University of Defense Technology,Changsha 410000; 2.Aeronautical Meteorology Chemical Defense Study of Air Force Equipment Research Institute,Beijing 100085;
Abstract：Based on the eight-point method by Mecikalski and so on and the FY-2G geostationary satellite data,the convective initiation forecasting methods are being obtained by using multi-wavelet fusion,CCM technology,pyramidal matcher and area-overlapped method.The indicators from convective initiation forecasting and its thresholds have been modified by a series of experiments because of the differences of resolution and study areas between the FY-2G and GOES geostationary meteorological satellite.Then,two convective weather events in Beijing regions are studied in the convective initiation forecasting.The comparative analysis is taking out between forecasting results and Doppler weather radar,which shows that the convective initiation forecasting method would forecast convective initiation process 30-40 min ahead in Beijing regions,indicating the effectiveness and feasibility of the algorithm and providing theoretical support for short-term catastrophic weather warnings.
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2018, Vol. 35 
