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WATER SURFACE CONDITION AND TWO CHANNEL
MICROWAVE MEASUREMENTS
by
K. TSUCHIYA
S. YAMAMOTO
C. ISHIDA
NASDA
JAPON
and
I. ISOZAKI
METEOROLOGICAL RESEARCH INSTITUTE
JAPON
Abstract
Two channel scanning microwave radiometer (23.8 GHz and 31.4 GHz)
will be installed in Japanese Marine Observation Satellite (MOS)-1 to
be launched in 1987. In order to find out the feasubility of sea surface
observation with this radiometer experimental observations were made
continuously for 10 days over a pool made within the site of Meteorological
Institute.
Radiance temperature was measured both in vertical and horizontal
polarization over the water surface for different meteorological condition
changing incident angle. A special emphasis was put on obtaining the
relationship between radiance temperature and surface roughness thus the
result can be compared with Stogryn and Hollinger's theoretical values.
Since the observation was made at 15° interval by changing polarization
angle, influence of polarization angle can be obtained.
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