Results 11 to 20 of about 1,021 (189)
Post-processing scheme for modelling the lithospheric magnetic field [PDF]
Solid Earth, 2013 We investigated how the noise in satellite magnetic data affects magnetic lithospheric field models derived from these data in the special case where this noise is correlated along satellite orbit tracks.
V. Lesur +4 more
doaj +9 more sources
A high-resolution lithospheric magnetic field model over southern Africa based on a joint inversion of CHAMP, Swarm, WDMAM, and ground magnetic field data [PDF]
Solid Earth, 2018 We derive a lithospheric magnetic field model up to equivalent spherical harmonic degree 1000 over southern Africa. We rely on a joint inversion of satellite, near-surface, and ground magnetic field data.
F. Vervelidou, E. Thébault, M. Korte
doaj +2 more sources
An equivalent source method for modelling the global lithospheric magnetic field [PDF]
Geophysical Journal International, 2015 We present a new technique for modelling the global lithospheric magnetic field at Earth’s surface based on the estimation of equivalent potential field sources. As a demonstration we show an application to magnetic field measurements made by the CHAMP satellite during the period 2009–2010 when it was at its lowest altitude and solar activity was quiet.
Kother, Livia Kathleen +3 more
openaire +6 more sources
Long-wavelength lithospheric magnetic field of China [PDF]
Geophysical Journal International, 2020 SUMMARY We present new regional models, denoted CLAS, of the Chinese lithospheric field, combining the long-wavelength information provided by satellite-derived models: CHAOS-6, MF7, LCS-1 and NGDC720, and an extremely high-quality compilation of 97 994 aeromagnetic survey data with 10 km × 10 km resolution for shorter wavelength.
Yi Jiang +5 more
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Use of along-track magnetic field differences in lithospheric field modelling [PDF]
Geophysical Journal International, 2014 We demonstrate that first differences of polar orbiting satellite magnetic data in the along-track direction can be used to obtain high resolution models of the lithospheric field. Along-track differences approximate the north–south magnetic field gradients for non-polar latitudes.
Kotsiaros, Stavros; id_orcid 0000-0003-2636-5545 +2 more
openaire +3 more sources
Magnetic Field Data Correction in Space for Modelling the Lithospheric Magnetic Field
Space Science Reviews, 2016 The Earth’s magnetic field as it is measured by low-Earth orbit satellites such as Swarm and CHAMP results from the superposition of internal and external source fields overlapping in time and in space. The Earth’s lithospheric field is one of the weakest sources detectable from space and its accurate description requires treatments of rapidly-varying ...
Thébault, Erwan +3 more
openaire +5 more sources
Geosciences, 2020 In this study, we present a novel approach combining the advantages of tesseroids in representing geophysical structures though their voxel-like discretization features with a spherical harmonic representation of the magnetic field.
Eldar Baykiev +2 more
doaj +2 more sources
Earth and Planetary PhysicsAs a means of quantitative interpretation, forward calculations of the global lithospheric magnetic field in the Spherical Harmonic (SH) domain have been widely used to reveal geophysical, lithological, and geothermal variations in the lithosphere ...
JinSong Du +7 more
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A statistical spatial power spectrum of the Earth's lithospheric magnetic field [PDF]
Geophysical Journal International, 2015 The magnetic field of the Earth's lithosphere arises from rock magnetization contrasts that were shaped over geological times. The field can be described mathematically in spherical harmonics or with distributions of magnetization. We exploit this dual representation and assume that the lithospheric field is induced by spatially varying susceptibility ...
Thébault, Erwan, Vervelidou, F.
openaire +4 more sources
A Swarm lithospheric magnetic field model to SH degree 80 [PDF]
Earth, Planets and Space, 2016 The Swarm constellation of satellites was launched in November 2013 and since then has delivered high-quality scalar and vector magnetic field measurements. A consortium of several research institutions was selected by the European Space Agency to provide a number of scientific products to be made available to the scientific community on a regular ...
Thébault, Erwan +3 more
openaire +4 more sources