COV-OBS.x2: 180 years of geomagnetic field evolution from ground-based and satellite observations

Abstract We present the geomagnetic field model COV-OBS.x2 that covers the period 1840–2020. It is primarily constrained by observatory series, satellite data, plus older surveys. Over the past two decades, we consider annual differences of 4-monthly means at ground-based stations (since 1996), and...

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Bibliographic Details
Main Authors: Loïc Huder, Nicolas Gillet, Christopher C. Finlay, Magnus D. Hammer, Hervé Tchoungui
Format: Article
Language:English
Published: SpringerOpen 2020-10-01
Series:Earth, Planets and Space
Subjects:
Online Access:http://link.springer.com/article/10.1186/s40623-020-01194-2