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U.S. Drought
> Drought Indices: Standardized Runoff Index (3-Month)
Drought Indices
Standardized Runoff Index
3-Month
03Apr2025-03Jul2025
Topo
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Notes about this product:
Drought classification: D1 -0.8 > SRI > -1.2; D2 -1.3 > SRI > -1.5; D3 -1.6 > SRI > -1.9; and D4 SRI < -2.
Data source: North American Land Data Assimilation System (NLDAS)
GeoTIFF: Undefined value is -999.
Related Links:
GeoTIFF
Contacts: L. Gwen Chen (lichuan.chen@noaa.gov) & Li Xu (li.xu@noaa.gov)
NOAA/
National Weather Service
NOAA Center for Weather and Climate Prediction
Climate Prediction Center
5830 University Research Court
College Park, Maryland 20740
Page Author:
Climate Prediction Center Internet Team
Page last modified: Aug 19, 2016
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