Magnetotelluric Sampling and Geoelectric Hazard Estimation: Are National‐Scale Surveys Sufficient?
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DOI: 10.1029/2020sw002693
Abstract: At present, the most reliable information for inferring storm‐time ground electric fields along electrical transmission lines comes from coarsely sampled, national‐scale magnetotelluric (MT) data sets, such as that provided by the EarthScope USArray program. An… read more here.
Keywords: hazard; national scale; electrical transmission; geoelectric hazard ... See more keywords
Down to Earth With Nuclear Electromagnetic Pulse: Realistic Surface Impedance Affects Mapping of the E3 Geoelectric Hazard
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DOI: 10.1029/2021ea001792
Abstract: An analysis is made of Earth‐surface geoelectric fields and voltages on electricity transmission power‐grids induced by a late‐phase E3 nuclear electromagnetic pulse (EMP). A hypothetical scenario is considered of an explosion of several hundred kilotons… read more here.
Keywords: surface impedance; nuclear electromagnetic; impedance; electromagnetic pulse ... See more keywords