fractures 
iges are 
ween 20 
0 m and 
ure groups 
etween the 
idth is 
th Sound 
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of the 
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of the 
ield 
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egion and Engi- 
"x 
SNOW PROPERTIES AND TWO CHANNEL MICROWAVE MEASUREMENTS 
by 
K. TSUCHIYA 
S. YAMAMOTO 
C. ISHIDA 
National Space Development Agency of Japan 
(Tokyo Japan) 
K. TAKEDA 
Y. YAJIMA 
Science and Technology Agency 
(Tokyo, Japan) 
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 an attempt to find out the feasibility of 
snow property observation with this radiometer an observation was 
made for the consecutive 10 days in January 1982 at the test site of 
Hokkaido University. 
Radiance temperature was measured both in vertical and horizontal 
polarization over the test site for various depth of snow, i. e. 5 cm 
interval up to 30 cm depth and 20 cm interval in the range between 60 
and 120 cm depth. In reference with very detailed in situ information 
of snow properties and meteorological condition it is expected that 
interesting results can be obtained. 
777