中国区域逐小时地面—雷达—卫星三源降水融合实况产品在阜新地区短时强降水分析中的应用

Application of Hourly Ground-Radar-Satellite Three-Source Precipitation Fusion Scene of China in Short-Term Heavy Precipitation Analysis of Fuxin Area

利用了2017-2020年5-9月份逐小时阜新地区融合和站点资料,分析了两种资料在阜新地区短时强降水时空分布特征上的异同点。结果表明:①空间分布特征相近,局地特征融合资料更加细致。②出现最多的地区主要是在阜新县西北部、彰武县西北部和东南部,站点资料在阜新县西南部短时强降水发生也比较多,而融合资料并没有表现。③月和日分特征较为一致。月分布6-8月最多,呈夏季多发性。日分布呈单峰型,17-18时最多,呈傍晚多发性。

Using the hourly fusion and station data in Fuxin area from May to September during 2017-2020,the similarities and differences of the two data in the temporal and spatial distribution characteristics of short-term heavy precipitation in Fuxin area were analyzed.The results show that:①The spatial distribution characteristics are similar,and the local characteristic fusion data is more detailed.②The precipitation mainly occurs in the northwest of Fuxin County,and the northwest and southeast of Zhangwu County.There are also more station data of short-term heavy precipitation in the southwest of Fuxin County,but the fusion data does not contain it.③The characteristics by the month and day are relatively consistent.The monthly distribution is dominant from June to August,indicating frequent precipitation in summer.The daily distribution is unimodal,with the peak at 17-18 o’clock,indicating frequent precipitation in the evening.