Results 31 to 40 of about 9,307,202 (259)

The influence of regularization on the geomagnetic core field modeling

open access: yes地球与行星物理论评
Earth's magnetic field is generated through the dynamo action in the liquid outer core. Using observational data from geomagnetic satellites and observatories, we can construct geomagnetic models that describe spatial and temporal variations of the core ...
Juyuan Xu, Yufeng Lin, Keke Zhang
doaj   +1 more source

Modeling the influence of magnetospheric heat fluxes on the electron temperature in the subauroral ionosphere

open access: yesSolar-Terrestrial Physics, 2017
We present results of modeling of the electron temperature distribution in the F region of the subauroral ionosphere for different helio-geomagnetic conditions with consideration for magnetospheric heat fluxes.
Gololobov A.Yu.   +2 more
doaj   +1 more source

Using improved Swarm’s experimental absolute vector mode data to produce a candidate Definitive Geomagnetic Reference Field (DGRF) 2015.0 model

open access: yesEarth, Planets and Space, 2021
We describe the way a global model of the geomagnetic field has been built using vector field data acquired by the absolute scalar magnetometers (ASM) running in vector mode on board the Alpha and Bravo satellites of the European Space Agency (ESA) Swarm
Pierre Vigneron   +3 more
doaj   +1 more source

Modelling the geomagnetic field.

open access: yesJournal of geomagnetism and geoelectricity, 1990
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 ...
openaire   +2 more sources

Advancements in low Earth orbit satellite magnetic field measurements and global geomagnetic field modeling

open access: yes地球与行星物理论评
Low Earth orbit (LEO) satellites have emerged as a primary tool for global geomagnetic field detection and model refinement, owing to their wide coverage, high resolution, and absence of geographical limitations.
Yanyan Yang   +7 more
doaj   +1 more source

A global climatological model of extreme geomagnetic field fluctuations [PDF]

open access: yesJournal of Space Weather and Space Climate, 2020
This paper presents a multi-parameter global statistical model of extreme horizontal geomagnetic field fluctuations (dBH/dt), which are a useful input to models assessing the risk of geomagnetically induced currents in ground infrastructure. Generalised Pareto (GP) distributions were fitted to 1-min measurements of |dBH/dt| from 125 magnetometers (with
Neil C. Rogers   +4 more
openaire   +4 more sources

Front Matter

open access: yesGeophysical Monograph Series, Page i-xiv., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
wiley  

+1 more source

Influence of different data selection criteria on internal geomagnetic field modeling

open access: yesEarth and Planetary Physics
Earth’s internal core and crustal magnetic fields, as measured by geomagnetic satellites like MSS-1 (Macau Science Satellite-1) and Swarm, are vital for understanding core dynamics and tectonic evolution.
HongBo Yao   +5 more
doaj   +1 more source

Geomagnetic Storm Effects on the LEO Proton Flux During Solar Energetic Particle Events

open access: yesSpace Weather, 2023
During a few solar energetic particle (SEP) events, solar protons were trapped within the geomagnetic field and reached the outer edge of the inner radiation belt.
Kirolosse M. Girgis   +5 more
doaj   +1 more source

The CHAOS-4 geomagnetic field model [PDF]

open access: yesGeophysical Journal International, 2014
We present CHAOS-4, a new version in the CHAOS model series, which aims to describe the Earth's magnetic field with high spatial and temporal resolution. Terms up to spherical degree of at least n = 85 for the lithospheric field, and up to n = 16 for the time-varying core field are robustly determined.More than 14 yr of data from the satellites Ørsted,
Olsen, N.   +6 more
openaire   +3 more sources

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