Continental United States
Spatial Resolution
Data Source(s)
    gridMET, PRISM, RTMA, CFS, ERA5, MERRA2, Terra Climate, CHIRPS, USDM, NADM
Science Partner


Drought is a sustained imbalance of supply (precipitation) and demand (i.e. evaporative demand). Droughts can be caused by several factors, some natural, some anthropogenic. There are numerous types of drought that can occur at different time scales – meteorological drought, agricultural drought, hydrologic drought, snow drought, and socioeconomic drought.

Climate Engine generates and provides ready access to dozens of different drought products at global scales, and that are place-based. Some of the more common drought indices include: Palmer Drought Severity Index (PDSI), Standardized Precipitation Index (SPI), Standardized Precipitation Evapotranspiration Index (SPEI), Evaporative Demand Drought Index (EDDI), Evaporative Stress Index (ESI), U.S. Drought Monitor (USDM), North America Drought Monitor (NADM), and satellite-based anomalies such as Land Surface Temperature (LST) anomalies, and Landsat vegetation and water index anomalies.

Technical Information

Continental United States - Global
Period of Record
Spatial Resolution
Temporal Resolution
Daily to Multi-year
Data Summaries
max, min, mean, median, anomalies, trend and statistical significance, spatial and temporal aggregations, time series
Data Source(s)
gridMET, PRISM, RTMA, CFS, ERA5, MERRA2, Terra Climate, CHIRPS, USDM, NADM, Landsat, Sentinel, MODIS
Data Formats
raster (geotiff), raster tile (tile ID), time series (.csv, .xls, .json, .geojson)

End User License Agreement

Your license is subject to your prior acceptance of either this Licensed Application End User License Agreement (“Standard EULA”), or a custom end user license agreement between you and the Application Provider (“Custom EULA”), if one is provided.

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