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Average Change in Drought (Five-Year SPEI) in the Contiguous 48 States, 1900–2020
This map shows how drought conditions have changed across the contiguous 48 states from 1900 to 2020. The data are showed for small regions called climate divisions, as defined by the National Oceanic and Atmospheric Administration. Blue areas represent increased moisture; brown areas represent a decrease or drier conditions. For more information: https://www.epa.gov/climatechange/science/indicators.
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Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| contactPoint |
{ "fn": "U.S. Environmental Protection Agency, Office of Air and Radiation", "@type": "vcard:Contact", "hasEmail": "mailto:kolian.michael@epa.gov" } |
| describedByType | application/octet-steam |
| description | This map shows how drought conditions have changed across the contiguous 48 states from 1900 to 2020. The data are showed for small regions called climate divisions, as defined by the National Oceanic and Atmospheric Administration. Blue areas represent increased moisture; brown areas represent a decrease or drier conditions. For more information: https://www.epa.gov/climatechange/science/indicators. |
| distribution |
[ { "@type": "dcat:Distribution", "accessURL": "https://geodata.epa.gov/arcgis/rest/services/OAR_OAP/Drought/MapServer", "mediaType": "text/html", "describedByType": "application/octet-stream" }, { "@type": "dcat:Distribution", "accessURL": "https://www.epa.gov/climatechange/science/indicators", "mediaType": "text/html", "describedByType": "application/octet-stream" } ] |
| identifier | https://edg.epa.gov/WAFer_harvest/ISO/oar-oap-geo-records_final_Drought.xml |
| keyword |
[ "United States", "Climate", "Indicator", "020:033", "Drought", "Dry", "Wet", "Downloadable Data" ] |
| language |
[]
|
| license | https://creativecommons.org/publicdomain/zero/1.0/ |
| modified | 2026-05-20T00:00:00.000+00:00 |
| publisher |
{ "name": "U.S. Environmental Protection Agency, Office of Air and Radiation", "@type": "org:Organization" } |
| spatial | -66.950005,24.54394,-124.733174,49.384359 |
| theme |
[ "geospatial" ] |
| title | Average Change in Drought (Five-Year SPEI) in the Contiguous 48 States, 1900–2020 |
