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AGU: Geophysical Research Letters

 

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  • Global Change: Remote sensing
  • Global Change: Water cycles
  • Global Change: Instruments and techniques
  • Meteorology and Atmospheric Dynamics: General or miscellaneous

Abstract

GEOPHYSICAL RESEARCH LETTERS, VOL. 30, 1759, 4 PP., 2003
doi:10.1029/2003GL017691

The impact of temperature errors on perceived humidity supersaturation

S. A. Buehler

Institute of Environmental Physics, University of Bremen, Bremen, Germany

N. Courcoux

Institute of Environmental Physics, University of Bremen, Bremen, Germany

A Monte Carlo method is used to study the propagation of temperature uncertainties into relative humidity with respect to ice (RH i ) calculated from specific humidity. For a flat specific humidity distribution and Gaussian temperature uncertainties the resulting RH i distribution drops exponentially at high RH i values—much slower than a Gaussian. This agrees well with the RH i distribution measured by the Microwave Limb Sounder (MLS), which means that such remotely measured RH i distributions can be explained, at least partly, by temperature uncertainties.

Received 6 May 2003; accepted 17 June 2003; published 25 July 2003.

Citation: Buehler, S. A., and N. Courcoux (2003), The impact of temperature errors on perceived humidity supersaturation, Geophys. Res. Lett., 30(14), 1759, doi:10.1029/2003GL017691.

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