1998-2015年中国干旱指数遥感栅格数据产品

本数据集为中国干旱指数数据产品，通过使用降水距平百分率方法计算TRMM 3B43降水数据，然后对计算结果按照降水距平百分率分类标准进行分级，得到特旱、重旱、中旱、轻旱和无旱五个等级的干旱分布，最后进行充分类操作得到。

This dataset is a Chinese regional drought index data product. It is generated by first calculating the percentage of precipitation anomaly using the TRMM 3B43 precipitation dataset, then classifying the resulting anomaly percentage values into five drought severity classes—extreme drought, severe drought, moderate drought, mild drought, and no drought—according to the classification criteria for percentage of precipitation anomaly, and finally completing the full classification procedure.