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Proceedings Paper

Microwave profiling of atmospheric temperature, humidity, and cloud liquid water
Author(s): Randolph H. Ware; Fredrick S. Solheim
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Paper Abstract

We describe a passive microwave radiometer that provides continuous unattended atmospheric temperature and humidity profiles up to 10 km in height, and low resolution liquid water profiles. Profile accuracies in cloudy and clear conditions up to 7 km height are better than 2.5 K (temperature) and 1.1 g/m3 (humidity) as determined by statistical comparison with radiosondes. The microwave profiler observes 12 channels in the 20 to 60 GHz range, 1 infrared channel, and surface temperature, pressure and humidity. Retrieval coefficients for specific locations are derived using local radiosonde data and a neural network or regression analysis. The commercial microwave radiometer design has logged more than a million hours in locations ranging form the arctic to the tropics. We provide examples of microwave profiler soundings in various locations and weather conditions, and comparisons with radiosondes. We discuss recent high resolution water vapor field analysis results based on simulated slant GPS and microwave profiler data.

Paper Details

Date Published: 21 December 2000
PDF: 11 pages
Proc. SPIE 4152, Microwave Remote Sensing of the Atmosphere and Environment II, (21 December 2000); doi: 10.1117/12.410610
Show Author Affiliations
Randolph H. Ware, Radiometrics Corp. (United States)
Fredrick S. Solheim, Radiometrics Corp. (United States)

Published in SPIE Proceedings Vol. 4152:
Microwave Remote Sensing of the Atmosphere and Environment II
Thomas T. Wilheit; Harunobu Masuko; Hiroyuki Wakabayashi, Editor(s)

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