Background Information on
Drought & Climate Variability
for Developing a Hydroclimatic Perspective
on Building Scenarios

• North American Drought:  A Paleo Perspective -- tutorial from the NOAA Paleoclimatology Program
   
• North American Drought Atlas A History of Meteorological Drought Reconstructed from 835 Tree-Ring Chronologies for the past 2005 years. -  Principal Investigators: E.R. Cook, U. Lall, C. Woodhouse, D.M. Meko.   Includes times series of PDSI for individual years. (Some of these have been included with the 7-year streamflow sequences).
  
• NOAA-NESDIS North American Drought Variability -  A related site with another version of the reconstructed PDSI data noted above. Includes times series of PDSI for individual grid points, based on tree rings
  
  
• NCDC Climate Monitoring:  see Drought Monitoring Link
   
• CLIMAS Climate Assessment for the Southwest site
   
  • Reconstructing Past Climate in the Southwest - tree-ring based reconstructions of cool-season precipitation for climatic divisions in Arizona & New Mexico
  • Online tool for access to reconstructed precipitation data by climatic division
  • Drought and Climate in Arizona: Top Ten Questions and Answers [pdf]
    This 23-page report outlines several questions frequently asked of CLIMAS researchers about Arizona's longterm drought and climate.