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Secular variations of geomagnetic declination in the Karadag point and the global helio-geodynamic processes [PDF]

open access: yesГеофизический журнал, 2019
To study the changes in the local variations of geomagnetic field, the Karadag point was chosen due to the fact that we found previously on increased insolation and the surface temperature of the earth at this point over the last century (compared to ...
A. E. Volvach, G. S. Kurbasova
doaj   +4 more sources

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

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   +6 more sources

IGRF-14 secular variation prediction from core surface flow acceleration [PDF]

open access: yesEarth, Planets and Space
The International Geomagnetic Reference Field (IGRF) has been regularly updated since its inception in 1965. Every recent iteration contains an estimate of the geomagnetic secular variation (SV), for the intermediate years between iterations. We submit a
Frederik Dahl Madsen   +5 more
doaj   +2 more sources

An Aeromagnetic Compensation Method for Suppressing the Magnetic Interference Generated by Electric Current with Vector Magnetometer [PDF]

open access: yesSensors, 2022
In aeromagnetic detection, the magnetic interference conducted by electric currents in onboard electronic (OBE) equipment is gradually being taken seriously with the development of aeromagnetic compensation technology.
Chao Zhang   +4 more
doaj   +2 more sources

How do core surface flow models vary when inverted from IGRF-14 candidate field models? [PDF]

open access: yesEarth, Planets and Space
The International Geomagnetic Reference Field (IGRF) model is a series of models that describe the large scale magnetic field measured at the Earth’s surface. It is used by a wide range of scientists and industries, including in navigation, space weather
H. F. Rogers, M. Mandea
doaj   +3 more sources

Enhancing Geomagnetic Navigation with PPO-LSTM: Robust Navigation Utilizing Observed Geomagnetic Field Data [PDF]

open access: yesSensors
Geospatial navigation in GPS-denied environments presents significant challenges, particularly for autonomous vehicles operating in complex, unmapped regions.
Xiaohui Zhang   +5 more
doaj   +2 more sources

Cosmic ray cutoff prediction using magnetic field from global magnetosphere MHD simulations [PDF]

open access: yesAnnales Geophysicae, 2005
Relativistic particles entering the Earth's magnetosphere, i.e. cosmic rays and solar energetic particles, are of prime space weather interest because they can affect satellite operations, communications, and the safety of astronauts and airline ...
J. M. Weygand, J. Raeder
doaj   +7 more sources

Candidate geomagnetic field models for IGRF-14 and secular acceleration since 2020

open access: yesEarth, Planets and Space
IGRF-14 is the fourteenth generation of the International Geomagnetic Reference Field (IGRF), a spherical harmonic model of Earth’s main magnetic field and its secular variation, developed through international collaboration under the auspices of the ...
Arnaud Chulliat, Manoj Nair, Sam Califf
doaj   +2 more sources

Astudy and Analysis of Geomagnetic Field By using Model of International Geomagnetic Reference Field (IGRF- 2000)

open access: yesIbn Al-Haitham Journal for Pure and Applied Sciences, 2017
The IGRF model is the empirical representation of the Earth magnetic field recommended for scientific use by the International Association of Geomagnetism and Aeronomy(IAGA).
H. A A I- Mahdi
doaj   +1 more source

International Geomagnetic Reference Fields: DGRF 1965, DGRF 1970, DGRF 1975, and IGRF 1980

open access: yesEos, Transactions American Geophysical Union, 1981
The International Geomagnetic Reference Field (IGRF) 1965 was the first of such reference fields and was adopted by the International Association of Geomagnetism and Aeronomy (IAGA) in 1968 [IAGA Commission 2 Working Group 4, 1969]. It consists of a model of the main field at 1965.0 along with a model of secular variation for use in extending the main ...
openaire   +3 more sources

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