Because the ARM (Atmospheric Radiation Measurement) program uses data from radiosondes for real-time quality control and sensitive modeling applications, it is important to have a quantitative measure of the quality of the radiosonde data themselves. Two methods have been tried for estimating the quality of radiosonde data: comparisons with known standards before launch and examination of pseudo-replicate samples by single sensors aloft. The ground check procedure showed that the ARM radiosondes are within manufacturer`s specifications for measuring relative humidity; procedural artifacts prevented verification for temperature. Pseudo-replicates from ascent and descent suggest that the temperature measurement is within the specified {minus_plus}0.2 ...
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Argonne National Lab., IL (United States)
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Illinois
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Because the ARM (Atmospheric Radiation Measurement) program uses data from radiosondes for real-time quality control and sensitive modeling applications, it is important to have a quantitative measure of the quality of the radiosonde data themselves. Two methods have been tried for estimating the quality of radiosonde data: comparisons with known standards before launch and examination of pseudo-replicate samples by single sensors aloft. The ground check procedure showed that the ARM radiosondes are within manufacturer`s specifications for measuring relative humidity; procedural artifacts prevented verification for temperature. Pseudo-replicates from ascent and descent suggest that the temperature measurement is within the specified {minus_plus}0.2 C. On average ascent and descent data are similar, but detailed structure may be obscured on descent by loss of sampling density, and the descent involves other uncertainties.
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Lesht, B. M.An evaluation of ARM radiosonde operational performance,
article,
June 1995;
Illinois.
(digital.library.unt.edu/ark:/67531/metadc710877/:
accessed April 21, 2018),
University of North Texas Libraries, Digital Library, digital.library.unt.edu;
crediting UNT Libraries Government Documents Department.