Summary

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Page Properties

id	dap_dataset

Name	LCS-1: Lithospheric magnetic field from CHAMP and Swarm satellites
Description	LCS-1: a high-resolution global model of the lithospheric magnetic field derived from CHAMP and Swarm satellite observations
Authors	Nils Olsen, Dhananjay Ravat, Christopher C Finlay, Livia K Kother
Reference	Geophysical Journal International, Volume 211, Issue 3, 1 December 2017, Pages 1461–1477, https://doi.org/10.1093/gji/ggx381
Summary	"We derive a new model, named LCS-1, of Earth’s lithospheric field based on four years (2006 September–2010 September) of magnetic observations taken by the CHAMP satellite at altitudes lower than 350 km, as well as almost three years (2014 April–2016 December) of measurements taken by the two lower Swarm satellites Alpha and Charlie. The model is determined entirely from magnetic ‘gradient’ data (approximated by finite differences): the north–south gradient is approximated by first differences of 15 s along-track data (for CHAMP and each of the two Swarm satellites), while the east–west gradient is approximated by the difference between observations taken by Swarm Alpha and Charlie..." For more information, see https://academic.oup.com/gji/article-abstract/211/3/1461/4157793
Alternate data source	http://www.spacecenter.dk/files/magnetic-models/LCS-1/

Metadata

General	Dataset name	Lithospheric magnetic field from CHAMP and Swarm
	Purpose	Research
	Primary theme/Subject

Magnetics

Secondary theme/Category
Geophysics

Satellite

Magnetics
Tertiary theme/Type	Satellite
File format	Geosoft Grid
Web link	https://geosoftgxdev.atlassian.net/wiki/

spaces/DAP/pages/304349185/Lithospheric+magnetic+field+from+CHAMP+and+SwarmAbstract

Location	Region	World
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Abstract	LCS-1: A high-resolution global model of the lithospheric magnetic field derived from CHAMP and Swarm satellite observations. Scalar field anomaly F (in nT) at Earth's surface (WGS84) on a 0.25 x 0.25 grid in latitude and longitude (equidistant in geographic latitude and longitude) as given by LCS-1 lithospheric field model, for spherical harmonic degrees n = 14 to 185. The LCS-1 is described in Olsen, N., D. Ravat, C. C. Finlay, and L. K. Kother, LCS-1: A high-resolution global model of the lithospheric magnetic field derived from CHAMP and Swarm satellite observations, Geophys. J. Int., 211, 1461-1477, doi:10.1093/gji/ggx381, 2017
Data	Project name	LCS-1 lithospheric magnetic field
	Data source	http://www.spacecenter.dk/files/magnetic-models/LCS-1/
	Project type	CHAMP/Swarm Satellite magnetic field
	Scale / Resolution	0.25 degrees
	Unit of measurement	nT
	Data created by	Olsen, N., D. Ravat, C. C. Finlay, and L. K. Kother
	Data creation date	2017-09-13
	Metadata created by	N. Green, Geosoft Inc
	Metadata creation date	2018-06-01
	Confidentiality	Public - Used with permission

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