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Meteorological Drought

Wayne C. Palmer

出版	U.S. Department of Commerce, Weather Bureau, 1965
URL	http://books.google.com.hk/books?id=kyYZgnEk-L8C&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN

註釋

Drought can be considered as a strictly meteorological phenomenon. It can be evaluated as a meteorological anomaly characterized by a prolonged and abnormal moisture deficiency. Not only does this approach avoid many of the complicating biological factors and arbitrary definitions, it enables one to derive a climatic analysis system in which drought severity is dependent on the duration and magnitude of the abnormal moisture deficiency. The objective of this paper is to develop a general methodology for evaluating the meteorological anomaly in terms of an index which permits time and space comparisons of drought severity.