Preliminary Comparison of Marchâ??May Radiosonde Soundings with Marchâ??May Climatological Profiles for Yuma, Arizona

Report No. ARL-TN-0812
Authors: J Cogan and P Haines
Date/Pages: February 2017; 28 pages
Abstract: Climatological data are sometimes used in place of actual sounding data for planning and in field tests when sounding data are not available. However, the use of climate mean profiles may lead to wide differences from actual individual atmospheric profiles. This brief report investigates the variation of a series of soundings as compared to climate mean soundings and soundings computed from the sum of the mean ±1 or 2 climate-based standard deviations. Sounding data for Yuma Proving Ground (YPG), Arizona, from March to May 2016 were compared with climate data from March to May from 1987–2016 for YPG. As expected, there was wide variation in the individual profiles that sometimes led to large differences from the climate mean and occasionally exceeded or were less than the climate mean ±2 standard deviations, respectively.
Distribution: Approved for public release
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Last Update / Reviewed: February 1, 2017