Geology Reference
In-Depth Information
Variation of permittivity of MY ice (combining hum-
mock and melt pond data) versus density as obtained
from the measurements and the mixing model presented
before is shown in Figure 3.37. The data points from
melt pond ice are grouped around 0.9 g/cm
3
density.
The solid line represents the best second‐order polyno-
mial fit:
3.8
Hummock ice
Melt pond ice
Gudmandsen's equation
3.6
3.4
3.2
3.0
2.8
2
46384756
.
.
DD
(3.119)
2.6
2.4
where D is ice density. Results from an empirical equation
developed by
Gudmandsen
[1971] are also shown. This
equation is written as
2.2
2.0
0.5
0.6
0.7
0.8
0.9
1. 0
2
1085
.
D
(3.120)
Density (g/cm
3
)
Figure 3.37
Variation of permittivity with density of multiyear
ice. The second‐order best fit is shown by the solid line, and the
nonlinear equation (3.125) is shown by the dotted line. Melt
pond ice has higher density than hummock ice [
Shokr,
1998].
