Results 11 to 20 of about 5,130 (219)

Geomagnetic core field models and secular variation forecasts for the 13th International Geomagnetic Reference Field (IGRF-13)

open access: yesEarth, Planets and Space, 2020
Observations of the geomagnetic field taken at Earth’s surface and at satellite altitude are combined to construct continuous models of the geomagnetic field and its secular variation from 1957 to 2020.
I. Wardinski   +6 more
doaj   +2 more sources

Geomagnetic field shielding over the last one hundred thousand years

open access: yesJournal of Space Weather and Space Climate, 2022
The geomagnetic field prevents energetic particles, such as galactic cosmic rays, from directly interacting with the Earth’s atmosphere. The geomagnetic field is not static but constantly changing, and over the last 100,000 years, several geomagnetic ...
Gao Jiawei   +4 more
doaj   +2 more sources

Centennial to millennial geomagnetic field variations [PDF]

open access: yesJournal of Space Weather and Space Climate, 2012
Reconstructions of the geomagnetic field in the past represent a useful tool not only to investigate the geodynamo process, but also to estimate the effect of geomagnetic shielding for any studies on cosmogenic radionuclides and galactic cosmic rays.
Korte Monika, Muscheler Raimund
doaj   +2 more sources

Robustness of characteristics of the Matuyama-Brunhes geomagnetic field reversal found in global models

open access: yesFrontiers in Earth Science
Paleomagnetic data enables the global reconstruction of the geomagnetic field, allowing the investigation of significant events like polarity reversals and excursions.
Ahmed Nasser Mahgoub   +4 more
doaj   +3 more sources

Forecasting secular variation using physics-informed neural networks for IGRF-14 [PDF]

open access: yesEarth, Planets and Space
In response to the call for candidate models for the 14th generation of the International Geomagnetic Reference Field (IGRF) by the Geomagnetic Field Modeling Working Group (V-MOD) of the International Association of Geomagnetism and Aeronomy (IAGA), we ...
N. Shakespeare-Rees   +6 more
doaj   +2 more sources

Intensity of the geomagnetic field in Europe for the last 3 ka: Influence of data quality on geomagnetic field modeling

open access: yesGeochemistry, 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   +2 more sources

Radiometric Constraints on the Timing, Tempo, and Effects of Large Igneous Province Emplacement

open access: yesGeophysical Monograph Series, Page 27-82., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Jennifer Kasbohm   +2 more
wiley  

+2 more sources

Geomagnetic jerks characterization via spectral analysis [PDF]

open access: yesSolid Earth, 2012
In this study we have applied spectral techniques to analyze geomagnetic field time-series provided by observatories, and compared the results with those obtained from analogous analyses of synthetic data estimated from models. Then, an algorithm is here
B. Duka   +4 more
doaj   +1 more source

Regional geomagnetic core field and secular variation model over the Iberian Peninsula from 2014 to 2020 based on the R-SCHA technique

open access: yesEarth, Planets and Space, 2023
The Earth’s magnetic field originated in the fluid core, the so-called core field, is the dominant contribution to the geomagnetic field. Since ancient times, the core geomagnetic field has been used primarily for geographical orientation and navigation ...
Marina Puente-Borque   +4 more
doaj   +1 more source

Error model of geomagnetic-field measurement and extended Kalman-filter based compensation method. [PDF]

open access: yesPLoS ONE, 2017
The real-time accurate measurement of the geomagnetic-field is the foundation to achieving high-precision geomagnetic navigation. The existing geomagnetic-field measurement models are essentially simplified models that cannot accurately describe the ...
Zhilei Ge   +4 more
doaj   +1 more source

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