The Ørsted Satellite Project

A Danish Microsatellite With a High Scientific Profile

Papers and reports


GEOMAGNETIC MAIN FIELD MODELS

 

Thomson, A.W.P. (1)

  1. British Geological Survey, West Mains Road, Edinburgh EH9 3LA, Scotland. E-mail: a.thomson@bgs.ac.uk

Abstract. Models of the Earth's main magnetic field have both academic and commercial applications and are derived from magnetic measurements on land, air and sea and by satellites in low Earth orbit. We discuss current techniques and data treatments that help isolate the core-generated component from the fields of other sources. We examine the legacy of Magsat, the last high quality satellite mission in 1979-1980, and present some recent models and results from the Ørsted mission.