OFR07-06, Upgrade of Aeromagnetic Databases and Processing Systems at the Minnesota Geological Survey

Loading...

View/Download File

aeromag_finalrpt.pdf (1.94 MB)

Persistent link to this item

https://hdl.handle.net/11299/199777

Statistics

View Statistics

Journal Title

Journal ISSN

Volume Title

Title

OFR07-06, Upgrade of Aeromagnetic Databases and Processing Systems at the Minnesota Geological Survey

Authors

Chandler, Val W

Published Date

2007

Publisher

Minnesota Geological Survey

Type

Report

Abstract

During 2005-2007 a program to upgrade the aeromagnetic database for Minnesota was conducted by the Minnesota Geological Survey (MGS). Most of the Minnesota aeromagnetic data were acquired during a 1979-1991 state-wide survey program, and compilation and processing were limited to the computer capabilities of the time. Since that time significant improvements have been made in the development of computers and software that can efficiently handle massive database operations, such as line leveling and gridding. This project was consequently initiated to upgrade the MGS database using up-to-date software and hardware. Access to the data was also to be improved by making all upgraded data available via the web.

Keywords

geophysics

magnetic

magnetism

aeromagnetic

bedrock

anomaly

Description

The new program had three major objectives. One objective was to recover line data that turned up missing from the primary digital archive, which was a CD that was produced in 1992 (Hittleman and others) by the National Geophysical Data Center of the National Oceanic and Atmospheric Administration (NOAA). A Second objective was to mitigate line-leveling errors, which caused striping artifacts in some of the data. A third objective was to use the revised data to produce an improved aeromagnetic grid for the entire state. The previously existing state aeromagnetic grid used a spacing of 213.36 meters, and preliminary testing had indicated that a higher resolution grid was possible over many areas of the state.

Related to

Replaces

License

Collections

Open-File Reports

Series/Report Number

OFR;
Open File Reports;07-06

Funding information

A Final Report for Sponsored Project A78649 Minnesota Minerals Coordinating Committee

Isbn identifier

Doi identifier

Previously Published Citation

Suggested citation

Chandler, Val W. (2007). OFR07-06, Upgrade of Aeromagnetic Databases and Processing Systems at the Minnesota Geological Survey. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/199777.

Content distributed via the University Digital Conservancy may be subject to additional license and use restrictions applied by the depositor. By using these files, users agree to the Terms of Use. Materials in the UDC may contain content that is disturbing and/or harmful. For more information, please see our statement on harmful content in digital repositories.