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JOURNAL OF GEOPHYSICAL RESEARCH,
VOL. 103, NO. D18,
PAGES 23,195–23,197,
1998
On cloud radar and microwave radiometer measurements of stratus cloud liquid water profiles
A. S. Frisch
Cooperative Institute for Research in the Atmosphere, Colorado State University/NOAA, Environmental Technology Laboratory,
Boulder
G. Feingold
Cooperative Institute for Research in the Atmosphere, Colorado State University/NOAA, Environmental Technology Laboratory,
Boulder
C. W. Fairall
NOAA/ERL/Environmental Technology Laboratory, Boulder, Colorado
T. Uttal
NOAA/ERL/Environmental Technology Laboratory, Boulder, Colorado
J. B. Snider
Cooperative Institute for Research in Environmental Sciences, University of Colorado/NOAA, Environmental Technology Laboratory,
Boulder
Abstract
We show a method for determining stratus cloud liquid water profiles using a microwave radiometer and cloud radar. This method
is independent of the radar calibration and the cloud-droplet size distribution provided that the sixth moment of the size
distribution can be related to the square of the third moment. We have calculated these moments with a wide variety of in
situ measurements and show that this is a reasonable assumption. Examples of droplet distributions that meet this requirement
are the lognormal and gamma distributions.
Received 13
October
1997;
accepted 8
May
1998.
Read Full Article Cited by
Citation: Frisch, A. S., G. Feingold, C. W. Fairall, T. Uttal, and J. B. Snider
(1998),
On cloud radar and microwave radiometer measurements of stratus cloud liquid water profiles,
J. Geophys. Res.,
103(D18),
23,195–23,197.
Copyright 1998 by the American Geophysical Union.
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