* This study received multiple sponsorship from the Blue Hill Meteorological Observatory of Harvard University under U. S. Weather Bureau Contract No. Cwb-8310, and Massachusetts Institute of Technology's Meteorology Dept., and Weather Radar Research project, a project operated under SCEL Contract No. DA-36-039 SC-42625.** Also associated with Harvard University.
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Wexler et al. (1954) studied this question.