江汉平原降水时空分布规律探讨

江汉平原降水时空分布规律探讨 THE SPATIAL AND TEMPORAL DISTRIBUTION OF PRECIPITATION IN JIANGHAN PLAIN 傅云新 Fu Yunxin 1 first-author 吴宜进 Wu Yijin 1 武汉大学历史学系 武汉大学历史学系 Department of History,Wuhan University Department of History,Wuhan University 利用江汉平原１３个代表站近３３年的降水资料，分析了平均降水量的分布特点，用经验正交函数（ＥＯＦ）分解法探讨了４，７，１０月和１月等代表月份历年降水空间分布规律，并据各月典型场时间系数用最大熵谱分析方法求出了其变化的准周期。 Analysed the features of distribution of mean precipitation in Jianghan Plain, and discussed the regularity of spatial and temporal distribution of the precipitation in April , July ,October and January by using empirical orthogonal function analysis, and calculated the varying periods of main types of rainfall distribution. 降水量 时空分布 EOF分解 江汉平原 precipitation spatial and temporal distribution empirical orthogonal func- tion analysis Jianghan plain P426.613 1997-03-01 2021-04-01 3