Skip to main content
U.S. flag

An official website of the United States government

An evaluation of the accuracy of geomagnetic data obtained from an unattended, automated, quasi-absolute station

January 1, 1990

A comparison is made of geomagnetic calibration data obtained from a high-sensitivity proton magnetometer enclosed within an orthogonal bias coil system, with data obtained from standard procedures at a mid-latitude U.S. Geological Survey magnetic observatory using a quartz horizontal magnetometer, a Ruska magnetometer, and a total field magnetometer. The orthogonal coil arrangement is used with the proton magnetometer to provide Deflected-Inclination-Deflected-Declination (DIDD) data from which quasi-absolute values of declination, horizontal intensity, and vertical intensity can be derived. Vector magnetometers provide the ordinate values to yield baseline calibrations for both the DIDD and standard observatory processes. Results obtained from a prototype system over a period of several months indicate that the DIDD unit can furnish adequate absolute field values for maintaining observatory calibration data, thus providing baseline control for unattended, remote stations. ?? 1990.

Publication Year 1990
Title An evaluation of the accuracy of geomagnetic data obtained from an unattended, automated, quasi-absolute station
DOI 10.1016/0031-9201(90)90216-K
Authors D.C. Herzog
Publication Type Article
Publication Subtype Journal Article
Series Title Physics of the Earth and Planetary Interiors
Index ID 70016079
Record Source USGS Publications Warehouse