Results 1 to 10 of about 21,118 (299)
Intensity of the geomagnetic field in Europe for the last 3 ka: Influence of data quality on geomagnetic field modeling [PDF]
Geochemistry, Geophysics, Geosystems, 2014 One of the main challenges of paleomagnetic research is to obtain high‐resolution geomagnetic field intensity reconstructions. For the last millennia, these reconstructions are mostly based on archeomagnetic data.
Francisco Javier Pavón‐Carrasco +4 more
doaj +3 more sources
Evaluation of candidate geomagnetic field models for the 10th generation of IGRF [PDF]
Journal of geomagnetism and geoelectricity, 2005 Spherical harmonic models of the main geomagnetic field and its secular variation are used by navigators, exploration geophysicists, drillers of oil wells and by scientists studying the Earth's interior, its ionosphere and magnetosphere. The data on which such models are based must be of the highest quality and must be distributed as homogeneously as ...
S. Maus +3 more
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Modeling of the Sq geomagnetic field induced by tidal oscillations of the atmosphere [PDF]
Earth and Planetary PhysicsThe Sq (solar quiet) geomagnetic field is generated by the electric currents in the E-region of the ionosphere, driven by the atmospheric tides. It is a critical part of high-precision geomagnetic field modeling.
WenBo Li, DaLi Kong, HongBo Yao, Hao Yan
doaj +2 more sources
An improved geomagnetic data selection algorithm for global geomagnetic field modelling [PDF]
Geophysical Journal International, 2007 A spherical harmonic degrees 60, global internal field model is described (called BGS/G/L/0706). This model includes a degree 15 core and piecewise-linear secular variation model and is derived from quiet-time Orsted and CHAMP satellite data sampled between 2001.0 and 2005.0.
Alan Thomson, Vincent Lesur
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Geomagnetic main field modeling with DMSP [PDF]
Journal of Geophysical Research: Space Physics, 2014 AbstractThe Defense Meteorological Satellite Program (DMSP) launches and maintains a network of satellites to monitor the meteorological, oceanographic, and solar‐terrestrial physics environments. In the past decade, geomagnetic field modelers have focused much attention on magnetic measurements from missions such as CHAMP, Ørsted, and SAC‐C.
Stefan Maus, Hermann Lühr, Rob J Redmon
exaly +4 more sources
A Gaussian Model for Simulated Geomagnetic Field Reversals [PDF]
Physics of the Earth and Planetary Interiors, 2015 Field reversals are the most spectacular changes in the geomagnetic field but remain little understood. Paleomagnetic data primarily constrain the reversal rate and provide few additional clues. Reversals and excursions are characterized by a low in dipole moment that can last for some 10kyr.
Johannes Wicht, Domenico G. Meduri
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Correlation‐based modeling and separation of geomagnetic field components [PDF]
Journal of Geophysical Research: Solid Earth, 2016 AbstractWe introduce a technique for the modeling and separation of geomagnetic field components that is based on an analysis of their correlation structures alone. The inversion is based on a Bayesian formulation, which allows the computation of uncertainties.
Matthias Holschneider +2 more
exaly +4 more sources
Earth, Planets and Space, 2022 Abstract We present the extension of the Kalmag model, proposed as a candidate for IGRF-13, to the twentieth century. The dataset serving its derivation has been complemented by new measurements coming from satellites, ground-based observatories and land, marine and airborne surveys.
Julien Baerenzung +4 more
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Pymaginverse: A python package for global geomagnetic field modeling [PDF]
Applied Computing and GeosciencesData-based geomagnetic models are key for mapping the global field, predicting the movement of magnetic poles, understanding the complex processes happening in the outer core, and describing the global expression of magnetic field reversals. There exists
Frenk Out +4 more
doaj +4 more sources
Domino model for geomagnetic field reversals [PDF]
Physical Review E, 2013 accepted for Physical Review E, 18 December ...
Mori, N. +6 more
openaire +4 more sources