Results 61 to 70 of about 10,343 (227)

Lithospheric magnetic variations on the Tibetan Plateau based on a 3D surface spline model, compared with strong earthquake occurrences

open access: yesEarth and Planetary Physics
The National Geophysical Data Center (NGDC) of the United States has collected aeromagnetic data for input into a series of geomagnetic models to improve model resolution; however, in the Tibetan Plateau region, ground-based observations remain ...
PengTao Zhang   +5 more
doaj   +1 more source

LCS-1: A high-resolution global model of the lithospheric magnetic field derived from CHAMP and Swarm satellite observations [PDF]

open access: yes, 2017
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 ...
Finlay, Chris   +3 more
core   +2 more sources

Deciphering the “Missing Xenon Paradox” in Celestial Bodies: A Multifaceted Perspective Toward Demystifying This Enigma

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 4, April 2026.
Abstract Xenon (Xe) is a heavy noble gas with intriguing chemical properties, such as having several stable isotopes and the ability to form compounds under extreme conditions. Despite the predictions based on cosmochemical models that suggest xenon should be relatively abundant in planetary reservoirs, empirical data indicate a significant depletion ...
Avinash Kumar Both   +2 more
wiley   +1 more source

A new high-resolution geomagnetic field model for southern Africa

open access: yesSouth African Journal of Science
Earth’s magnetic field is a dynamic, changing phenomenon. The geomagnetic field consists of contributions from several sources, of which the main field originating in Earth’s core makes up the bulk.
Amore E. Nel   +3 more
doaj   +1 more source

Spreading Magnetic Anomalies Separation of the South China Sea Based on the Nested Elliptical Directional Filters

open access: yesJournal of Marine Science and Engineering, 2023
Spreading magnetic anomalies recorded the paleo-geomagnetic field variation that has great significance in the investigation of the extension process of ocean basins.
Mingming Wang, Song Chen, Herong Gui
doaj   +1 more source

Modelling Earth's lithospheric magnetic field using satellites in low-perigee elliptical orbits

open access: yesGeophysical Journal International, 2022
The sensitivity of magnetic measurements taken by satellites in elliptical orbits to the lithospheric magnetic field is studied by comparing the formal error variances of the lithospheric Gauss coefficients for various satellite orbital constellations.We compare the results obtained using a satellite in a near-polar circular orbit at 350 km altitude ...
openaire   +2 more sources

Mercury's Tectonic and Geodynamic History: 1. Contractional Tectonic Landform Analysis and Tectonic Strain Using Machine Learning

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 4, April 2026.
Abstract Mercury's tectonic record is dominated by shortening landforms, including lobate scarps, high‐relief ridges and wrinkle ridges. Previous analyses of these structures have used displacement–length ratios to constrain the planet's global contraction to a range of either no more than 2 km or up to 7 km.
A. Broquet, J. C. Andrews‐Hanna
wiley   +1 more source

A cubed-sphere based method for global and regional modeling of the lithospheric magnetic field

open access: yesEarth and Planetary Physics
The Earth’s magnetic field, which has been extensively observed from ground to satellite altitudes over several decades, originates from multiple sources, such as the core dynamo, the conductive mantle, the magnetized lithosphere, and the space current ...
Liang Yin   +5 more
doaj   +1 more source

Compatibility of high-altitude aeromagnetic and satellite-altitude magnetic anomalies over Canada [PDF]

open access: yes, 2002
Results from equivalent-source distributions derived jointly from high-altitude (average 4 km) aeromagnetic and Magsat-derived (average 400 km) magnetic anomalies over Canada indicate that long-wavelength components (500–2500 km) in these fields are ...
Pilkington, M.   +4 more
core   +1 more source

Mercury's Tectonic and Geodynamic History: 2. Contribution of Membrane–Flexural Strains to the Tectonic Record

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 4, April 2026.
Abstract Previous analyses of Mercury's tectonic record have arrived at widely varying amounts of global contraction. Contraction also varies spatially, with some regions displaying a near‐zero record of contraction. Here, we investigate the contribution of membrane–flexural strain from lithosphere loading to the tectonic record.
A. Broquet, J. C. Andrews‐Hanna
wiley   +1 more source

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