The Accuracy of RASS Temperature Measurements

Peter T. May Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado/N0AA, Boulder, Colorado

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Kenneth P. Moran Wave Propagation Laboratory, ERL, NOAA, Boulder, Colorado

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Richard G. Strauch Wave Propagation Laboratory, ERL, NOAA, Boulder, Colorado

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Abstract

Temperature measurements obtained using radiosondes and Radio Acoustic Sounding Systems (RASS) are compared to assess the utility of the RASS technique for meteorological studies. The agreement is generally excellent; rms temperature differences are about 1.0°C for comparisons during a variety of meteorological conditions. Observations taken under ideal circumstances indicate that a precision of about 0.2°C is achievable with the RASS technique. A processor being designed for RASS should allow routine temperature measurements approaching this precision.

Abstract

Temperature measurements obtained using radiosondes and Radio Acoustic Sounding Systems (RASS) are compared to assess the utility of the RASS technique for meteorological studies. The agreement is generally excellent; rms temperature differences are about 1.0°C for comparisons during a variety of meteorological conditions. Observations taken under ideal circumstances indicate that a precision of about 0.2°C is achievable with the RASS technique. A processor being designed for RASS should allow routine temperature measurements approaching this precision.

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