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Publication Extents

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The meteorologic phenomenon of drought in the Southwest
H. E. Thomas
1962, Professional Paper 372-A
The recent drought is one of several which have been recorded in the arid Southwest in the past century. In regions where precipitation comes chiefly from a single source, as in California and the Great Plains, prevailingly dry periods have alternated with wetter periods, each lasting 10 to 15 years....