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Average Change in Drought (Five-Year SPEI) in the Contiguous 48 States, 1900–2020

Metadata Updated: August 30, 2023

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.

Access & Use Information

License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources

Dates

Metadata Date April 15, 2021
Metadata Created Date August 30, 2023
Metadata Updated Date August 30, 2023
Reference Date(s) []
Frequency Of Update unknown

Metadata Source

Harvested from Environmental Dataset Gateway ISO Geospatial Metadata

Additional Metadata

Resource Type Dataset
Metadata Date April 15, 2021
Metadata Created Date August 30, 2023
Metadata Updated Date August 30, 2023
Reference Date(s) []
Responsible Party U.S. Environmental Protection Agency, Office of Air and Radiation (Publisher)
Contact Email
Guid AAAABAA4-3B0E-401E-AFF4-DA5B51988428
Access Constraints https://edg.epa.gov/EPA_Data_License.html
Bbox East Long -66.950005
Bbox North Lat 49.384359
Bbox South Lat 24.54394
Bbox West Long -124.733174
Coupled Resource
Frequency Of Update unknown
Harvest Object Id 2b496e41-7a49-4b8f-8508-fe6577c63b84
Harvest Source Id 9b3cd81e-5515-4bb7-ad3c-5ae44de9b4bd
Harvest Source Title Environmental Dataset Gateway ISO Geospatial Metadata
Licence None. Please check sources, scale, accuracy, currency and other available information. Please confirm that you are using the most recent copy of both data and metadata. Acknowledgement of the EPA would be appreciated.
Lineage
Metadata Language eng
Metadata Type geospatial
Old Spatial {"type": "Polygon", "coordinates": [[[-124.733174, 24.54394], [-66.950005, 24.54394], [-66.950005, 49.384359], [-124.733174, 49.384359], [-124.733174, 24.54394]]]}
Progress
Spatial Data Service Type
Spatial Reference System 4326
Spatial Harvester True

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