Regional Conductivity Maps
Regional Resistivity Models
Geomagnetically induced currents (GIC) flowing along electric power-transmission systems are produced as a result of electromagnetic induction produced in the Earth by geomagnetic disturbances. The depths into the planet to which the geomagnetic fields can penetrate are a function of the skin depth of Earth which can range from a few kilometers to 100's of km. Therefore, to calculate the geoelectric field that drives GIC it is necessary to know how Earth's resistivity structure varies laterally and with depth. (Fernberg et al. 2013, in prep.)
Regional Resistivity Models
- AK-1 - Adirondack Mountains
- AP-1 - Appalachan Plateaus
- AP-2 - Northern Appalachan Plateaus
- BR-1 - Northwest Basin and Range
- CL-1 - Colorado Plateau
- CO-1 - Columbia Plateau
- CP-1 - Coastal Plain(South Carolina)
- CP-2 - Coastal Plain(Georgia)
- CS-1 - Cascade-Sierra Mountains
- IP-1 - Interior Plains(North Dakota)
