The high spatial resolution multi-scale monthly SPI and SPEI raster dataset over China from 1979 to 2018

The traditional monthly SPI/SPEI fitting by various probability distributions (Gamma, Gumbel, Logistic, Log-Logistic, and Normal for SPI and Log-Logistic, Generalized extreme value, Normal, and Pearson type III for SPEI) in 3-month scale with a spatial resolution of 0.1° × 0.1° developed based on the China Meteorological Forcing dataset. All data are in NetCDF format.本数据集为基于中国气象强迫数据集（China Meteorological Forcing Dataset）构建的3个月时间尺度、0.1°×0.1°空间分辨率的月度标准化降水指数（Standardized Precipitation Index, SPI）与标准化降水蒸散指数（Standardized Precipitation Evapotranspiration Index, SPEI），其通过多种概率分布完成拟合：其中SPI采用伽马分布（Gamma）、耿贝尔分布（Gumbel）、逻辑分布（Logistic）、对数逻辑分布（Log-Logistic）与正态分布（Normal）进行拟合，SPEI则采用对数逻辑分布（Log-Logistic）、广义极值分布（Generalized extreme value）、正态分布（Normal）与皮尔逊III型分布（Pearson type III）进行拟合。所有数据均采用NetCDF格式存储。