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x
a
y
‛
‛‛
S
1
S
1
ρ
2
h
2
z
ρ
3
320
s
80
s
20
s
2.0
1.6
1.2
0.8
0.4
0
5
s
y, km
-1000
-500
0
500
1000
1500
1.2
0.8
0.4
0
320 s
80
s
5
s
20
s
y, km
-1000
-500
0
500
1000
1500
5
s
20
s
80
s
320
s
1.2
1.0
0.8
0.6
y, km
-1000
-500
0
500
1000
1500
80
s
20
s
320
s
5
s
1.2
1.0
y, km
1500
-1000
-500
0
500
1000
Fig. 7.37
Electromagnetic field profiles in a model with the axially symmetric conductive inclusion
in the upper layer. The profiles pass through the inclusion centre in the
y
−
direction. Models param-
eters:
S
1
=
max
S
1
10
4
10S
,
=
1000S
,
a
=
500 km
,
2
=
Ohm
·
m
,
h
2
=
225 km
,
3
=
1Ohm
·
m
(Golubtsova, 1981)
