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Table 1 One-dimensional resistivity models: 0 to 30 km [units: Ω m]

From: Sensitivity of geomagnetically induced currents to varying auroral electrojet and conductivity models

Depth (km)

0 to 10

10 to 20

20 to 30

Northern Highlands (NH)

10,000

5,000

2,000

Central Highlands (CH)

1,000

1,000

200

Midland Valley (MV)

100

150

250

Southern Uplands (SU)

20

20

1,000

Concealed Caledonides (CC)

500

2,000

500

General Model (GM)

1,000

1,000

500

Homogeneous half-space (HH)

900

900

900