Missouri Breaks Project, Montana - Digitized aeromagnetic data
From February 12 to March 8, 1981, EG and G Geometrics conducted an aeromagnetic survey in Montana for Anaconda Copper Company. A Piper Navajo aircraft was used to conducted the survey. The survey was flown along north-south flightlines spaced 660 feet at a nominal height of 450 feet above the terrain. Five uniformly spaced east-west tie-lines were also flown. During processing, the International Geomagnetic Reference Field (IGRF) of 1975 was updated to 1981 and removed from the survey observations. The resultant anomalous magnetic field was contoured at a 4.0 gamma interval and plotted to map sheets. In 2016, the map sheets were scanned, registered, and the contours were digitized. The point data released here were extracted from the digitized contour lines and include: latitude, longitude, and magnetic-field value (gamma).
Complete Metadata
| accessLevel | public |
|---|---|
| bureauCode |
[
"010:12"
]
|
| contactPoint |
{
"fn": "Eric D Anderson",
"@type": "vcard:Contact",
"hasEmail": "mailto:ericanderson@usgs.gov"
}
|
| description | From February 12 to March 8, 1981, EG and G Geometrics conducted an aeromagnetic survey in Montana for Anaconda Copper Company. A Piper Navajo aircraft was used to conducted the survey. The survey was flown along north-south flightlines spaced 660 feet at a nominal height of 450 feet above the terrain. Five uniformly spaced east-west tie-lines were also flown. During processing, the International Geomagnetic Reference Field (IGRF) of 1975 was updated to 1981 and removed from the survey observations. The resultant anomalous magnetic field was contoured at a 4.0 gamma interval and plotted to map sheets. In 2016, the map sheets were scanned, registered, and the contours were digitized. The point data released here were extracted from the digitized contour lines and include: latitude, longitude, and magnetic-field value (gamma). |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "Digital Data",
"format": "XML",
"accessURL": "http://dx.doi.org/10.5066/F7TH8JTN",
"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.573cf012e4b0dae0d5e4b18d.xml"
}
]
|
| identifier | http://datainventory.doi.gov/id/dataset/USGS_573cf012e4b0dae0d5e4b18d |
| keyword |
[
"Blaine County",
"Dodson Quadrangle",
"Fergus County",
"GIS",
"Havre Quadrangle",
"Lewistown Quadrangle",
"Little Rocky Mountains",
"Montana",
"Phillips County",
"USGS:573cf012e4b0dae0d5e4b18d",
"Zortman Quadrangle",
"aeromagnetic data",
"aeromagnetic surveying",
"airborne surveys",
"field monitoring stations",
"geophysical surveys",
"geophysics",
"geospatial datasets",
"magnetic",
"magnetic field (earth)",
"magnetic surveys",
"residual magnetic field",
"total field"
]
|
| modified | 2020-08-20T00:00:00Z |
| publisher |
{
"name": "U.S. Geological Survey",
"@type": "org:Organization"
}
|
| spatial | -109.002552105, 47.6885183876, -108.33873906, 48.0280572626 |
| theme |
[
"Geospatial"
]
|
| title | Missouri Breaks Project, Montana - Digitized aeromagnetic data |
