Effects of Temperature Anomalies on the Palmer
Drought Severity Index in the Central United States
Acknowledgments
We thank Dr Michael Hayes of the International Drought Mitigation Center for
providing the PDSI calculation code and for useful discussions. We also thank
Cynthia Hays for performing some of the calculations, and Dr Kenneth Hubbard
of US High Plains Climate Center and two anonymous reviewers for their suggestions
that led to improvement of this manuscript. Q. Hu thanks Ozark Highland Global
Change Research Program of the US Geological Survey (Cooperative Agreement 1445-CA09-95-0069)
and USDA (Cooperative Agreement 68-7428-9-459Y) for support of this work.
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