Remote Sensing of Atmospheric Water Vapor
·21
' 111
0
SOO I(XI)
0,
10 1
;;
~ 10
,.
0V
: 0
J:
':
Z
..
N 10'
10'1
50
H2O
10,,, (r;'~)
lou
/_ $,0.:10-'
1
T.'llS K
0
I
L.SOOu.
-1
-2
-J
I
-4
- ~
-6
0
-
6.3~m
Vibration
1500 ZOOO 1!i1X) lOl) 3SOO
wavenumber I em· 1
0,
100 .
'50
ZOO
~REOUENCY (GHII
II
1000
1$00
:rooo
•
FHquacy I CBs
191
10 1
10
';;
~
I
>.. v
.. .. 0
10. 1 J:
0iii
. .
...
10'
250
300
'SOO
)000
Figure 8.11: (a) Theoretical absorption coefficients for pure water vapor at 1 bar and at 296
K. The vertical axis is proportional to the absorption coefficient divided by a factor that is
approximately Vjc (modified from Clough et al., 1980), (from Stephens, 1994). (b) Background
microwave opacities and for a wet (H2 0 = 2 gm/cm 3 ) and completely dry atmosphere. The
background transmission of the atmosphere is defined by microwave absorption by O2 , H2 0, and
stratospheric 0 3 (reprinted from Waters 22), (from Janssen, 1993). (c) Microwave spectrum
of H2 0, (from Janssen, 1993).
·21
' 111
0
SOO I(XI)
0,
10 1
;;
~ 10
,.
0V
: 0
J:
':
Z
..
N 10'
10'1
50
H2O
10,,, (r;'~)
lou
/_ $,0.:10-'
1
T.'llS K
0
I
L.SOOu.
-1
-2
-J
I
-4
- ~
-6
0
-
6.3~m
Vibration
1500 ZOOO 1!i1X) lOl) 3SOO
wavenumber I em· 1
0,
100 .
'50
ZOO
~REOUENCY (GHII
II
1000
1$00
:rooo
•
FHquacy I CBs
191
10 1
10
';;
~
I
>.. v
.. .. 0
10. 1 J:
0iii
. .
...
10'
250
300
'SOO
)000
Figure 8.11: (a) Theoretical absorption coefficients for pure water vapor at 1 bar and at 296
K. The vertical axis is proportional to the absorption coefficient divided by a factor that is
approximately Vjc (modified from Clough et al., 1980), (from Stephens, 1994). (b) Background
microwave opacities and for a wet (H2 0 = 2 gm/cm 3 ) and completely dry atmosphere. The
background transmission of the atmosphere is defined by microwave absorption by O2 , H2 0, and
stratospheric 0 3 (reprinted from Waters 22), (from Janssen, 1993). (c) Microwave spectrum
of H2 0, (from Janssen, 1993).