江淮流域及其子区域梅雨监测时空数据集（1961-2020）

作者采用江淮流域1961-2020年239个梅雨监测代表站的日降水量和日平均气温资料，结合NCEP/NCAR再分析数据集500 hPa位势高度场和纬向风场确定的副热带高压脊线位置，基于《梅雨监测指标》（GB/T 33671—2017）识别江淮流域及其3个子区域的梅雨过程，得到各子区域及各站点的梅雨特征量。数据集包括：（1）江淮流域及其子区域边界数据；（2）各区域梅雨监测代表站的基本信息；（3）江淮流域及其3个子区域1961-2020年历年的入梅日、出梅日、梅雨季/期长度、梅雨雨强和梅雨强度指数；（4）江淮流域1961-2020年历年239个梅雨监测代表站的梅雨量、梅雨期雨日数和梅雨期降水发生率。该数据集存储为.shp和.xlsx格式，由15个文件组成，数据量为966 KB（压缩为1个文件，501 KB）。

The authors utilized daily precipitation and daily mean air temperature data from 239 representative plum rain monitoring stations across the Yangtze-Huaihe River Basin during 1961–2020, in combination with the subtropical high ridge line position derived from the 500 hPa geopotential height field and zonal wind field of the NCEP/NCAR Reanalysis Dataset, to identify plum rain events in the Yangtze-Huaihe River Basin and its three sub-regions per the "Plum Rain Monitoring Indicators" (GB/T 33671—2017), and derived the plum rain characteristic metrics for each sub-region and individual station. This dataset includes: (1) Boundary data of the Yangtze-Huaihe River Basin and its three sub-regions; (2) Basic information of the representative plum rain monitoring stations in each region; (3) Annual onset dates, ending dates, durations, rainfall intensities and intensity indices of plum rain periods for the Yangtze-Huaihe River Basin and its three sub-regions during 1961–2020; (4) Annual plum rain rainfall amounts, rainy days during plum rain periods and precipitation occurrence rates during plum rain periods at the 239 representative plum rain monitoring stations in the Yangtze-Huaihe River Basin during 1961–2020. This dataset is stored in .shp and .xlsx formats, comprising 15 individual files with a total uncompressed size of 966 KB (compressed into a single file of 501 KB).