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North Dakota aeromagnetic and gravity maps and data: A web site for distribution of data

Open-File Report 2003-249
By:  and 
https://doi.org/10.3133/ofr03249

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Abstract

The North Dakota aeromagnetic grid is constructed from grids that combine information collected in 13 separate aeromagnetic surveys conducted between 1978 and 2001. The data from these surveys are of varying quality. The design and specifications (terrain clearance, sampling rates, line spacing, and reduction procedures) varied from survey to survey depending on the purpose of the project and the technology of that time. Every attempt was made to acquire the data in digital form. Most of the available digital data were obtained from aeromagnetic surveys flown by the U.S. Geological Survey (USGS), flown on contract with the USGS, or were obtained from other federal agencies and state universities. Some of the 1980 data are available only on hand-contoured maps and had to be digitized. These maps were digitized along flight-line/contour-line intersections, which is considered to be the most accurate method of recovering the original data. Digitized data are available as USGS Open File Report 99-557. All surveys have been continued to 304.8 meters (1000 feet) above ground and then blended or merged together.

Suggested Citation

Sweeney, R.E., Hill, P.L., 2003, North Dakota aeromagnetic and gravity maps and data: A web site for distribution of data (Version 1.0): U.S. Geological Survey Open-File Report 2003-249, HTML Document, https://doi.org/10.3133/ofr03249.

ISSN: 2331-1258 (online)

Study Area

Publication type Report
Publication Subtype USGS Numbered Series
Title North Dakota aeromagnetic and gravity maps and data: A web site for distribution of data
Series title Open-File Report
Series number 2003-249
DOI 10.3133/ofr03249
Edition Version 1.0
Year Published 2003
Language English
Publisher U.S. Geological Survey
Description HTML Document
Country United States
State North Dakota
Additional publication details