Reference field for the airborne magnetic data

N. V. Fedorova; V. A. Shapiro

doi:10.1186/BF03352126

Impact Factor 2.243

Article

Open Access

Reference field for the airborne magnetic data

N. V. Fedorova¹Email author and
V. A. Shapiro¹

Earth, Planets and Space201450:BF03352126

https://doi.org/10.1186/BF03352126

© The Society of Geomagnetism and Earth, Planetary and Space Sciences (SGEPSS); The Seismological Society of Japan; The Volcanological Society of Japan; The Geodetic Society of Japan; The Japanese Society for Planetary Sciences. 1998

Received: 7 June 1996

Accepted: 9 April 1998

Published: 6 June 2014

Abstract

A comparison of satellite and surface surveys of geomagnetic anomalies is performed. A special regional aeromagnetic survey was carried out at the Urals. Different models of the reference field for the region under investigation were studied. A reference field has been constructed using polynomial of 4-th order. The long-wavelength component of the anomalous magnetic field was selected. It is shown that when dividing the magnetic field of the Earth into a main and anomalous parts by spherical harmonic analysis, a large part of the magnetic field from the crust is included within the main field model. A model of the crustal magnetization of the Northern Eurasia is constructed.