Analysis of geomagnetic secular variation during 1980-1985 and 1985- 1990, and geomagnetic models proposed for the 1991 revision of the International Geomagnetic Reference Field

Journal of Geomagnetism & Geoelectricity
By:

Links

Abstract

The secular variation of the main geomagnetic field during the periods 1980-1985 and 1985-1990 was analyzed in terms of spherical harmonics up to the eighth degree and order. Data from worldwide magnetic observatories and the Navy's Project MAGNET aerial surveys were used. The resulting pair of secular-variation models was used to update the Definitive Geomagnetic Reference Field (DGRF) model for 1980, resulting in new main-field models for 1985.0 and 1990.0. These, along with the secular-variation model for 1985-1990, were proposed for the 1991 revision of the International Geomagnetic Reference Field (IGRF).



Publication type Article
Publication Subtype Journal Article
Title Analysis of geomagnetic secular variation during 1980-1985 and 1985- 1990, and geomagnetic models proposed for the 1991 revision of the International Geomagnetic Reference Field
Series title Journal of Geomagnetism & Geoelectricity
DOI 10.5636/jgg.44.735
Volume 44
Issue 9
Year Published 1992
Language English
Publisher J-STAGE
Description 9 p.
First page 735
Last page 743
Google Analytic Metrics Metrics page
Additional publication details