【摘要】 利用30年欧洲中心数值产品格点资料500hPa分析场和51年山东省雨情等资料,采用统计学、天气学方法,研究了山东省雨季结束的标准。详细分析了山东省雨季结束的西风带环流特征、副热带高压(以下简称副高)及降水的时空分布特征,指出了山东省雨季结束时的最后一场大范围降水过程的影响天气系统和冷空气路径。总结出山东省雨季结束的标准。更多还原

【Abstract】 Using the 30 years 500hPa analysis field data of ECMWF and the 51 years data of precipitation, combing synoptic and statistics method, the ending standard of rainy season in Shandong is studied. By detailedly analyzing the westerly belt circulation characteristic, subtropical high and time-space distribution feature of the precipitation, the results indicate the forcing synoptic systems and cold air path of the last large range precipitation process when the rainy season is over, defining the ending standard of rainy season .更多还原