"10.1175/JHM-386.1" . "A Global Dataset of Palmer Drought Severity Index for 1870–2002: Relationship with Soil Moisture and Effects of Surface Warming"^^ . . "5" . "1117-1130" . "2004"^^ . "10.1175/JHM-386.1" . . . _:genid1 . _:genid1 . _:genid1 . _:genid1 . _:genid1 . _:genid2 . _:genid2 . _:genid2 . _:genid2 . _:genid2 . _:genid3 . _:genid3 . _:genid3 . _:genid3 . _:genid3 . . . . .