Airborne magnetic survey, Maryland, Pennsylvania, and West Virginia, 2022-2023
Magnetic data collected as part of a high-resolution airborne magnetic and radiometric survey over parts of Maryland, Pennsylvania, and West Virginia are provided here as a flight line database, grids, and imagery. The dataset was acquired as part of the USGS Earth Mapping Resource Initiative (Earth MRI) to improve our understanding of the fundamental geologic framework of the region with applications to evaluating natural resources and geologic hazards. Magnetic surveys measure subtle variations in the Earth's magnetic field and can detect differences in the magnetic properties of rocks from ground level to many kilometers below. The data were acquired and processed by Sander Geophysics Ltd. (SGL) under contract to Dewberry and the USGS. Data collection took place August 2022 to April 2023 using a combination of fixed-wing airplanes and helicopters. Pre-planned flight lines were flown in an E-W direction with 250-m line spacing; N-S tie-lines were flown with 2500-m line spacing. The nominal flight height of 120 meters (m) above ground, with areas having higher population densities flown at a nominal height of 330 m above ground for safety reasons. A total of 212,312 linear kilometers of data were collected covering an area that is 350-km E-W and 200 km N-S at its widest dimensions. A circular region surrounding the Catoctin Mountain Park was not covered. Details regarding the flights and data processing are described in the contractor report provided on the landing page of this release.
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Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[ "010:12" ] |
| contactPoint |
{ "fn": "Anjana K. Shah", "@type": "vcard:Contact", "hasEmail": "mailto:ashah@usgs.gov" } |
| description | Magnetic data collected as part of a high-resolution airborne magnetic and radiometric survey over parts of Maryland, Pennsylvania, and West Virginia are provided here as a flight line database, grids, and imagery. The dataset was acquired as part of the USGS Earth Mapping Resource Initiative (Earth MRI) to improve our understanding of the fundamental geologic framework of the region with applications to evaluating natural resources and geologic hazards. Magnetic surveys measure subtle variations in the Earth's magnetic field and can detect differences in the magnetic properties of rocks from ground level to many kilometers below. The data were acquired and processed by Sander Geophysics Ltd. (SGL) under contract to Dewberry and the USGS. Data collection took place August 2022 to April 2023 using a combination of fixed-wing airplanes and helicopters. Pre-planned flight lines were flown in an E-W direction with 250-m line spacing; N-S tie-lines were flown with 2500-m line spacing. The nominal flight height of 120 meters (m) above ground, with areas having higher population densities flown at a nominal height of 330 m above ground for safety reasons. A total of 212,312 linear kilometers of data were collected covering an area that is 350-km E-W and 200 km N-S at its widest dimensions. A circular region surrounding the Catoctin Mountain Park was not covered. Details regarding the flights and data processing are described in the contractor report provided on the landing page of this release. |
| distribution |
[ { "@type": "dcat:Distribution", "title": "Digital Data", "format": "XML", "accessURL": "https://doi.org/10.5066/P14AFABN", "mediaType": "application/http", "description": "Landing page for access to the data" }, { "@type": "dcat:Distribution", "title": "Original Metadata", "format": "XML", "mediaType": "text/xml", "description": "The metadata original format", "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.681252ffd4be02416e148601.xml" } ] |
| identifier | http://datainventory.doi.gov/id/dataset/USGS_681252ffd4be02416e148601 |
| keyword |
[ "Adams County", "Allegany County", "Allegheny Portage Railroad National Historic Site", "Antietam National Battlefield", "Armstrong County", "Baltimore County", "Barbour County", "Bedford County", "Berkeley County", "Berks County", "Blair County", "Cambria County", "Carroll County", "Cecil County", "Chesapeake and Ohio Canal National Historic Park", "Chester County", "Clarke County", "Clearfield County", "Cumberland County", "Dauphin County", "Economic Geology", "Eisenhower National Historic Site", "Fayette County", "Flight 93 National Memorial", "Fort Necessity National Battlefield", "Franklin County", "Frederick County", "Fulton County", "Garrett County", "Geophysics", "Geospatial datasets", "Gettysburg National Military Park", "Grant County", "Hampshire County", "Hardy County", "Harford County", "Harpers Ferry National Historical Park", "Howard County", "Huntingdon County", "Indiana County", "Jefferson County", "Johnstown Flood National Memorial", "Lancaster County", "Lebanon County", "Lewis County", "Loudoun County", "Magnetic field (earth)", "Marion County", "Maryland", "Mineral County", "Mineral Resources", "Monocacy National Battlefield", "Monongahela National Forest", "Monongalia County", "Montgomery County", "Morgan County", "Pennsylvania", "Preston County", "Randolph County", "Reisterstown Regional Park", "Sedimentology", "Somerset County", "Structural Geology", "Taylor County", "Tucker County", "USA", "USGS:681252ffd4be02416e148601", "United States", "United States of America", "Upshur County", "Virginia", "Washington County", "West Virginia", "Westmoreland County", "York County", "geoscientificInformation" ] |
| modified | 2026-01-06T00:00:00Z |
| publisher |
{ "name": "U.S. Geological Survey", "@type": "org:Organization" } |
| spatial | -80.416907, 38.750455, -75.799251, 41.166558 |
| theme |
[ "geospatial" ] |
| title | Airborne magnetic survey, Maryland, Pennsylvania, and West Virginia, 2022-2023 |
