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Reconstruction of Past Drought
Across the Coterminous United States from a
Network of Climatically Sensitive Tree-Ring Data
NOAA logo Dr. Edward Cook, Dr. David Meko, Dr. David Stahle and Dr. Malcolm Cleaveland
Author Affiliations and Publications
 Science funded by the Paleoclimatology Program of the NOAA Climate and Global Change Program (Grant NA36GP0139). Data and WWW interface developed in collaboration with NOAA NESDIS National Geophysical and Climate Data Centers. Use this page to view PDSI time series for selected grid points.

An updated version of this plotting tool is available using the expanded and extended 2004 versions of the North American PDSI reconstructions..
1999 Version:
You may download the plot image by clicking on it and then using the Save As option in the browser menu. To download the data click on the 'View and Download Data' link at the bottom of the plot and use the Save As option. Note: Older browsers may not be able to handle this clickable map. Netscape 2.0 or higher and Internet Explorer will function properly.
  View the Tree-ring Network used for PDSI reconstruction
  Detailed Map Description
  Download Numerical PDSI data

Click on grid points to obtain PDSI timeseries plot:
Cook 1998 US Map required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required required PDSI Reconstructions Home Page
Paleoclimatology Home Page
6 August 2004