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HOME > U.S. Drought > Drought Indices: Standardized Runoff Index (3-Month)

Drought Indices
Standardized Runoff Index
3-Month
16May2022-15Aug2022
Topo Map
3 Month Runoff Index Ensemble
3 Month Runoff Index Mosaic
3 Month Runoff Index NOAH
3 Month Runoff Index SAC
3 Month Runoff Index VIC
Boundaries
Rivers
Legend
               
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:
Contacts: L. Gwen Chen (lichuan.chen@noaa.gov) & Li Xu (li.xu@noaa.gov)


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