Results 31 to 40 of about 9,750 (219)
Spectral and spatial decomposition of lithospheric magnetic field models using spherical Slepian functions [PDF]
Geophysical Journal International, 2013 Global magnetic field models are typically expressed as spherical-harmonic expansion coefficients. Slepian functions are linear combinations of spherical harmonics that produce new basis functions, which vanish approximately outside chosen geographical boundaries but also remain orthogonal within the spatial region of interest. Hence, they are suitable
Beggan, Ciarán D. +3 more
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Geomagnetic data from the GOCE satellite mission
Earth, Planets and Space, 2022 The Gravity field and steady-state Ocean Circulation Explorer (GOCE) is part of ESA’s Earth Explorer Program. The satellite carries magnetometers that control the activity of magnetorquers for navigation of the satellite, but are not dedicated as science
I. Michaelis +4 more
doaj +1 more source
Remote Sensing, 2023 UAVs represent a tremendous opportunity to perform geophysical and repeated experiments, particularly in volcanic contexts. Their ability to be deployed rapidly and fly at various altitudes and the fact that they are easy to operate despite complex field
Erwan Thebault, Lydie-Sarah Gailler
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Simulating the dependence of seismo-ionospheric coupling on the magnetic field inclination [PDF]
Annales Geophysicae, 2018 Infrasound generated during a seismic event upon reaching the ionospheric heights possesses the ability to perturb the ionosphere. Detailed modelling investigation considering 1-D dissipative linear dynamics, however, indicates that the magnitude of ...
L. M. Joshi +4 more
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A 2D Lithospheric Magnetic Anomaly Field over Egypt Using Gradient Data of Swarm Mission
Universe, 2022 The current work makes use of the geometrical configuration of the two lower-altitude Swarm satellites (Swarm A and C), moving side by side with a longitudinal distance of 1.4°, to estimate a two-dimensional (2D) model of the lithospheric magnetic ...
Asmaa Abdellatif +3 more
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Insolation driven variations of Mercury’s lithospheric strength [PDF]
, 2010 Mercury's coupled 3:2 spin-orbit resonance in conjunction with its relatively high eccentricity of ~0.2 and near-zero obliquity results in both a latitudinal and longitudinal variation in annual average solar insolation and thus equatorial hot and cold ...
Aharonson, Oded +4 more
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Progress and challenges in modeling global lithospheric magnetic anomalies
地球与行星物理论评Over the past 50 years, extensive airborne and oceanic magnetic survey data collection efforts have resulted in the almost complete coverage of near-surface magnetic survey data worldwide.
Yao Luo +8 more
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Magnetic Inversion and Regional Tectonics of the Dabie Orogen
Magnetochemistry, 2023 Physical property inversion techniques are the methods to reveal the internal structures of Earth’s lithosphere. In this study, we introduce an Occam-type inversion algorithm into a spherical coordinate system, and invert the magnetization based on the ...
Liang Zhang +6 more
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Bayesian inversion for the filtered flow at the Earth's Core Mantle Boundary
, 2013 The inverse problem which consists of determining the flow at the Earth's Core Mantle Boundary according to an outer core magnetic field and secular variation model, has been investigated through a Bayesian formalism. To circumvent the issue arising from
Baerenzung, Julien +2 more
core +1 more source
A global lithospheric magnetic field model with reduced noise level in the Polar Regions [PDF]
Geophysical Research Letters, 2006 Due to persistent ionospheric current systems at high latitudes, satellite magnetic measurements have high noise levels in the Polar regions. Consequently, small‐scale lithospheric features are much more difficult to resolve there than at lower latitudes.
Lesur, V., Maus, S.
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