North American Drought Atlas
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Composite Map
Dataset:
Reconstructed PDSI Jun-Aug 0000 - 2005
Instrumental PDSI Jan 1895 - Dec 2005
How to Compute Composite:
Range of Years
List of Years
The development of this web application was supported by the National Science Foundation Paleoclimatology Program, Paleo Perspectives on Climate Change (Grant numbers AGS-1266015 and AGS-2201584).