—
‚u.
dent ang. 15°
ee eG
60 75 90
angle (deg)
le dependence
nperature
to horizontal
] 90? vertical
spectively)
olar
radiation =
ip
16 18
-ocal Time
))
ture
erature
(K)
Brightness Temperature
i 1 T 1 I
incident angle 10°
240 FF
t. T,, = - 0.003 D^ - 0.31 D + 244.2
S a 23 1/2
| X D s 1930292 To; 7. 9.7
N ( 0=D=60 cm )
\
\
230] : 23 GHz H
\
- \ T 2
V 131 = - 0.006 0? - 0.34 D + 238.4
\ 0 = 12.9 (243.2 -Tmyı y"? - 28.3
\ ( 0=D=40 cm )
220} \ se
\ + A
\ A
io 31 GHz Vv
210 ia :
60 80 100 1
Snow Depth (cm)
0 20 40
Fig. 8 Brightness temperature versus
snow depth at 23 GHz/31 GHz
20