A Global Dataset of Palmer Drought Severity Index for 1870 – 2002 : Relationship with Soil Moisture and Effects of Surface Warming

@inproceedings{Dai2005AGD,
  title={A Global Dataset of Palmer Drought Severity Index for 1870 – 2002 : Relationship with Soil Moisture and Effects of Surface Warming},
  author={Aiguo Dai and Kevin E. Trenberth and T Qian},
  year={2005}
}
A monthly dataset of Palmer Drought Severity Index (PDSI) from 1870 to 2002 is derived using historical precipitation and temperature data for global land areas on a 2.58 grid. Over Illinois, Mongolia, and parts of China and the former Soviet Union, where soil moisture data are available, the PDSI is significantly correlated (r 5 0.5 to 0.7) with observed soil moisture content within the top 1-m depth during warm-season months. The strongest correlation is in late summer and autumn, and the… CONTINUE READING
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