dataset · USA

GRIDMET DROUGHT: CONUS Drought Indices

This dataset contains drought indices derived from the 4-km daily Gridded Surface Meteorological (GRIDMET) dataset. The drought indices provided include the standardized precipitation index (SPI), the evaporative drought demand index (EDDI), the standardized precipitation evapotranspiration index (SPEI), the Palmer Drought Severity Index (PDSI) and Palmer Z Index (Z). SPI, EDDI, and SPEI are supplied on different time scales corresponding to the time aggregation of precipitation, reference evapo

Source details

Licence: proprietary

Evidence quality: 23.1

Listed in gee public catalogue API on 2026-10-16; relevance/value screened (haiku).

Metadata checked: 2026-10-14T13:20:00.000Z

Evidence

• ee.ImageCollection('GRIDMET/DROUGHT')
• https://developers.google.com/earth-engine/datasets/catalog/GRIDMET_DROUGHT

Check upstream coverage, uncertainty and licence before use. Station observations are not forecasts or design levels.