The International Geomagnetic Reference Field, 2005

Scientific Investigations Map 2964
By:  and 



This is a set of five world charts showing the declination, inclination, horizontal intensity, vertical component, and total intensity of the Earth's magnetic field at mean sea level at the beginning of 2005. The charts are based on the International Geomagnetic Reference Field (IGRF) main model for 2005 and secular change model for 2005-2010. The IGRF is referenced to the World Geodetic System 1984 ellipsoid. Additional information about the USGS geomagnetism program is available at:

Study Area

Publication type Report
Publication Subtype USGS Numbered Series
Title The International Geomagnetic Reference Field, 2005
Series title Scientific Investigations Map
Series number 2964
DOI 10.3133/sim2964
Edition Version 1.0
Year Published 2007
Language ENGLISH
Contributing office(s) U.S. Geological Survey
Description 5 Plates (each 1 p.); Download Directory; Text (2 p.)
Scale 1
Online Only (Y/N) Y
Additional Online Files (Y/N) Y
Google Analytic Metrics Metrics page
Additional publication details