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A preliminary, full spectrum, magnetic anomaly grid of the United States with improved long wavelengths for studying continental dynamics: A website for distribution of data

D. Ravat·Carol A. Finn·P. Hill·R. Kucks·J. Phillips·R. Blakely·C. Bouligand·T. Sabaka·A. Elshayat·A. Aref·E. Elawadi
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Abstract

Under an initiative started by Thomas G. Hildenbrand of the U.S. Geological Survey, we have improved the long-wavelength (50-2,500 km) content of the regional magnetic anomaly compilation for the conterminous United States by utilizing a nearly homogeneous set of National Uranium Resource Evaluation (NURE) magnetic surveys flown from 1975 to 1981. The surveys were flown in quadrangles of 2 deg of longitude by 1 deg of latitude with east-west flight lines spaced 4.8 to 9.6 km apart, north-south tie lines variably spaced, and a nominal terrain clearance of 122 m. Many of the surveys used base-station magnetometers to remove external field variations.

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90° N90° S · 180° W ← longitude → 180° E
Source-reported bounding extent: 18.771115062337024° to 71.35706654962706° latitude; -178.2421875° to -66.796875° longitude. This indicates report coverage, not an exact sampling location. View area on OpenStreetMap.

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D. Ravat, Carol A. Finn, P. Hill, R. Kucks, J. Phillips, R. Blakely, C. Bouligand, T. Sabaka, A. Elshayat, A. Aref, E. Elawadi. 2009. A preliminary, full spectrum, magnetic anomaly grid of the United States with improved long wavelengths for studying continental dynamics: A website for distribution of data. https://doi.org/10.3133/ofr20091258

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