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Looking to Download Data? The Drought.gov team reformats data from multiple partners into web- and GIS-ready formats, which we use throughout Drought.gov. These data are free for all to download.
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The Evaporative Demand Drought Index (EDDI) is an experimental tool that examines how anomalous the atmospheric evaporative demand (E0; also known as "the thirst of the atmosphere") is for a given

This tool shows one-month projections for EDDI, which is an early warning guidance tool that is available for monitoring.

Evaporative Demand Drought Index (EDDI) subseasonal forecasts are available from the CFS-gridMET dataset at 4-km gridded resolution over the contiguous U.S.

NASA/USDA provides access to Evaporative Stress Index (ESI) data products - a drought index based on remotely sensed evapotranspiration (ET).