Theoretical and Applied Climatology · 2010 · 163 citations · 17 references
ClimatologyFuture Climatic ChangeEarth ScienceEngineeringDroughtGeographyWater QuantityHydrologyPrecipitationClimatic ImpactWater Balance
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An Approach toward a Rational Classification of Climate
C. W. Thornthwaite · Geographical Review · 1948 · 8.9K citations
A Self-Calibrating Palmer Drought Severity Index
Nathan P. Wells, Steve Goddard, Michael J. Hayes · Journal of Climate · 2004 · 1.4K citations
An Approach Toward a Rational Classification of Climate
C. W. Thornthwaite · Soil Science · 1948 · 1.1K citations