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Meiyu Monitoring Dataset over Yangtze-Huai River Basin (1961-2020)

YAO Fei1,2YANG Xiuqin*1,2LIU Mujia1,2ZHANG Yuqing3LI Hua1,2
1 Key Laboratory of Hydrometeorological Disaster Mechanism and Warning of Ministry of Water Resources,Nanjing University of Information Science and Technology,Nanjing 210044,China2 School of Hydrology and Water Resources,Nanjing University of Information Science and Technology,Nanjing 210044,China3 School of Urban and Environmental Sciences,Huaiyin Normal University,Huai’an 223300,China


Published:Oct. 2022

Visitors:4288       Data Files Downloaded:76      
Data Downloaded:37.25 MB      Citations:

Key Words:

Yangtze-Huai River Basin,Meiyu onset date,Meiyu ending date,Meiyu intensity,Meiyu precipitation


Integrating daily precipitation and average temperature from 239 Meiyu monitoring stations over Yangtze-Huai River Basin from 1961 to 2020, the subtropical high pressure ridge location determined by 500 hPa potential height field and the latitude wind field from NCEP/NCAR reanalysis datasets, we identified the Meiyu process over Yangtze-Huai River Basin and its three sub-regions, and calculated the Meiyu characteristics indices at each subregion and each station using the Meiyu Monitoring Indices (GB/T 33671-2017). The dataset includes: (1) boundaries of Yangtze-Huai River Basin and its three sub-regions; (2) general information of Meiyu monitoring stations; (3) Meiyu onset date, ending date, the length of Meiyu season/period, the Meiyu intensity and Meiyu intensity indices from 1961 to 2020 over Yangtze-Huai River basin and its three sub-regions; (4) the amount of precipitation of Meiyu, the number of rainy days in the Meiyu period and the precipitation incidence rate during Meiyu period for 239 Meiyu stations over the Yangtze-Huai River Basin from 1961 to 2020. The dataset is archived in .shp and .xlsx data formats, and consists of 15 data files with data size of 966 KB (Compressed into one single file with 501 KB).

Foundation Item:

National Natural Science Foundation of China (41907384)

Data Citation:

YAO Fei, YANG Xiuqin*, LIU Mujia, ZHANG Yuqing, LI Hua. Meiyu Monitoring Dataset over Yangtze-Huai River Basin (1961-2020)[J/DB/OL]. Digital Journal of Global Change Data Repository, 2022.


[1] General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, National Standardization Administration of China. Meiyu monitoring index: GB/T 33671—2017 [S]. Beijing: Standards Press of China, 2017.
     [2] Liu, Y. Y., Ding, Y. H. Characteristics and possible causes for the extreme Meiyu in 2020 [J]. Meteorological Monthly, 2020, 46(11): 1393-1404.
     [3] Wu, J., Liang, P., Lin, H. J., et al. Meiyu determination and causes of typical abnormal Meiyu years in Taihu Basin [J]. Journal of Lake Sciences, 2021, 33(1): 255-265.
     [4] Zhou, P., Zhou, Y. L., Jin, J. L., et al. Meiyu identification of Yangtze-Huaihe region in Anhui province based on Meiyu monitoring indices [J]. Hydro-Science and Engineering, 2020(6): 9-15.
     [5] Zhou, Y. L., Zuo, Y. L., Zhang, Y. L., et al. Identification and characteristics analysis of Meiyu in Anhui Province based on the national standard of Meiyu monitoring indices [J]. Hydrology Research, 2021, 52(5): 975-989.

Data Product:

ID Data Name Data Size Operation
1 MeiyuYangtzeHuai1961-2020.rar 501.86KB