黑龙江流域干旱分布图
发布时间 ：2025-12-21 11:52:45 UTC
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The dataset is an estimated aridity grid with a spatial resolution of 10 arc minutes. This dataset represents the average annual precipitation divided by the average annual potential evapotranspiration, and is a drought index defined by the United Nations Environment Programme (UNEP). Obtain drought data in the Heilongjiang River Basin through clipping. Data source（ https://data.apps.fao.org/map/catalog/srv/eng/catalog.search#/metadata/221072ae -2090-48a1-be6f-5a88f061431a), the spatial coordinate system is WGS 84.