Results 1 to 10 of about 9,750 (219)

Post-processing scheme for modelling the lithospheric magnetic field [PDF]

open access: yesSolid 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   +8 more sources

The behavior of a lithospheric magnetization and magnetic field model

open access: yesEarth and Planetary Physics, 2023
The Earth’s “lithosphere” is its outer shell, made up of the Earth’s crust and outermost mantle. The part of the Earth’s magnetic field that originates in the lithosphere consists of a superposition of magnetic anomalies with a broad spectrum of sizes ...
PengFei Liu   +3 more
doaj   +3 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]

open access: yesSolid 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   +8 more sources

A two-dimensional lithospheric magnetic anomaly field model of Egypt using the measurements from Swarm satellites

open access: yesGeodesy and Geodynamics, 2021
We use magnetic field data observed by the Swarm mission from 2014 to 2020 to construct, for the first time, a two-dimensional (2D) lithospheric magnetic anomaly model of Egypt and its surrounding area.
Adel Fathy, Essam Ghamry
doaj   +2 more sources

Simulation for MSS-2 low-perigee elliptical orbit satellites: an example of lithospheric magnetic field modelling

open access: yesEarth and Planetary Physics, 2023
A future constellation of at least four geomagnetic satellites (designated Macau Scientific Satellite-1 (MSS-1) and Macau Scientific Satellite-2 (MSS-2)) was recently proposed, to continue high-quality geomagnetic observations in the post-Swarm period ...
Yi Jiang   +3 more
doaj   +3 more sources

The Study of the Lithospheric Magnetic Field over Xinjiang and Tibet Areas Based on Ground, Airborne, and Satellite Data

open access: yesRemote Sensing, 2023
Combined with the ground, airborne, and CHAMP satellite data, the lithospheric field over Xinjiang and Tibet is modeled through the three-dimensional Surface Spline (3DSS) model, Regional Spherical Harmonic Analysis (RSHA) model, and CHAOS-7.11 model ...
Yan Feng   +5 more
doaj   +1 more source

Global High-Resolution Magnetic Field Inversion Using Spherical Harmonic Representation of Tesseroids as Individual Sources

open access: yesGeosciences, 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   +1 more source

Non-singular spherical harmonic expressions of geomagnetic vector and gradient tensor fields in the local north-oriented reference frame [PDF]

open access: yesGeoscientific Model Development, 2015
General expressions of magnetic vector (MV) and magnetic gradient tensor (MGT) in terms of the first- and second-order derivatives of spherical harmonics at different degrees/orders are relatively complicated and singular at the poles. In this paper, we
J. Du, C. Chen, V. Lesur, L. Wang
doaj   +1 more source

CM5, a pre-Swarm comprehensive geomagnetic field model derived from over 12yr of CHAMP, Ørsted, SAC-C and observatory data [PDF]

open access: yes, 2017
A comprehensive magnetic field model named CM5 has been derived from CHAMP, Ørsted and SAC-C satellite and observatory hourly-means data from 2000 August to 2013 January using the Swarm Level-2 Comprehensive Inversion (CI) algorithm.
Kuvshinov, Alexey   +3 more
core   +4 more sources

Magnetic Structure and its Tectonic Implication Around Longmenshan Fault Zone Revealed by EMAG2v3

open access: yesFrontiers in Earth Science, 2022
The formation of magnetic minerals is bound up with the tectonic evolution history, whereupon the distribution of magnetic anomalies has great meanings for regional tectonics.
Yu Lei   +6 more
doaj   +1 more source

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