Geology Reference
In-Depth Information
Table 8.5
Values of selected polarimetric parameters for three ice types: SFYI, RFYI, and DFYI in addition to OW, obtained
from the fine quad‐polarization of Radarsat‐2.
Signatures (mean and standard deviation)
22° − 24°
25° − 28°
31° − 33°
35° − 37
°
Ice Type
Mean
SD
Mean
SD
Mean
SD
Mean
SD
SFYI
−17.61
1.24
−18.12
1.15
−20.45
1.34
−21.74
1.81
0
RFYI
−10.69
1.10
−11.86
1.26
−11.73
1.42
−12.23
1.86
hh
DFYI
−7.93
1.85
−9.30
1.73
−9.66
1.75
−10.12
1.73
OW
−7.85
1.05
−9.21
1.27
−9.09
0.95
−10.02
1.82
SFYI
−17.56
1.47
−18.29
1.02
−20.82
1.23
−21.01
1.87
0
RFYI
−10.92
1.68
−11.24
1.75
−12.10
1.17
−12.55
1.84
vv
DFYI
−7.92
1.11
−9.04
1.56
−10.24
1.69
−10.83
1.59
OW
−7.96
1.06
−8.94
1.19
−9.44
1.88
−10.01
0.41
SFYI
−31.08
1.26
−32.69
1.80
−33.05
1.31
−33.89
0.47
0
RFYI
−25.26
1.40
−26.52
2.02
−26.43
1.57
−27.11
0.88
hv
DFYI
−21.99
1.79
−22.41
1.46
−23.49
1.74
−23.97
0.73
OW
−27.54
1.30
−27.61
1.87
−29.28
0.93
−30.13
0.49
R
hh/vv
SFYI
0.86
0.82
0.95
0.92
0.90
0.91
0.99
0.85
RFYI
0.20
0.94
0.28
0.67
0.30
0.58
0.32
0.18
DFYI
0.12
0.42
0.16
0.61
0.18
0.17
0.21
0.15
OW
−0.92
0.41
−1.27
0.60
−1.35
0.60
−1.61
0.63
R
hh/hv
SFYI
−8.46
1.50
−9.56
1.93
−9.60
1.05
−8.85
1.01
RFYI
−9.56
1.66
−9.65
1.83
−8.70
1.88
−9.87
0.87
DFYI
−14.07
1.96
−15.11
1.75
−13.82
2.90
−15.44
1.00
OW
−6.69
1.92
−6.40
1.26
−7.37
2.23
−6.30
1.15
SPAN
SFYI
−11.5
1.04
−12.2
1.02
−15.2
1.11
−17.0
1.21
RFYI
−7.21
1.08
−7.96
1.07
−8.24
1.13
−8.54
1.01
DFYI
−6.99
1.26
−7.21
1.13
−7.21
1.09
−7.45
1.12
OW
−6.99
1.27
−7.21
1.11
−7.45
1.14
−7.70
1.08
ϕ
hh−vv
SFYI
−6.33
2.76
−7.45
2.55
−7.48
2.71
−8.15
2.81
RFYI
−2.14
2.66
−2.55
2.44
−3.67
2.01
−3.12
2.58
DFYI
−4.81
2.85
−6.11
2.41
−6.14
2.21
−7.05
2.10
OW
−0.97
2.79
−2.59
2.12
−3.62
2.25
−4.38
2.52
r
hh
−
vv
SFYI
0.93
0.03
0.93
0.03
0.92
0.04
0.89
0.02
RFYI
0.91
0.07
0.92
0.05
0.91
0.08
0.89
0.02
DFYI
0.84
0.07
0.83
0.09
0.80
0.09
0.79
0.07
OW
0.98
0.01
0.97
0.02
0.97
0.01
0.96
0.01
H
SFYI
0.32
0.07
0.34
0.04
0.35
0.04
0.36
0.03
RFYI
0.34
0.09
0.35
0.05
0.36
0.07
0.38
0.03
DFYI
0.49
0.06
0.51
0.05
0.54
0.09
0.55
0.07
OW
0.13
0.01
0.14
0.02
0.15
0.01
0.16
0.02
A
SFYI
0.62
0.13
0.62
0.07
0.58
0.09
0.54
0.10
RFYI
0.46
0.07
0.45
0.14
0.43
0.06
0.42
0.15
DFYI
0.39
0.10
0.38
0.13
0.37
0.08
0.36
0.18
OW
0.39
0.09
0.39
0.13
0.38
0.09
0.37
0.13
α
SFYI
6.79
1.67
7.11
1.41
8.66
1.25
09.07
1.19
RFYI
7.74
1.80
8.79
1.32
9.09
1.13
10.92
1.20
DFYI
10.5
1.39
11.9
1.37
11.9
1.38
12.65
1.04
OW
7.36
0.61
8.07
0.95
9.07
0.96
09.68
1.29
Note
: Ice was located in the Parry Peninsula in Franklin Bay in the western Arctic in April 2008. Results are shown at four
different radar incidence angles. Values of
σ
0
and total power (SPAN) are in dB. All other parameters are presented in linear
scale [data are selected from tables presented in
Gill and Yackle
, 2012].
