Results 21 to 30 of about 6,860 (194)

The CHAOS-7 geomagnetic field model and observed changes in the South Atlantic Anomaly

open access: yesEarth, Planets and Space, 2020
We present the CHAOS-7 model of the time-dependent near-Earth geomagnetic field between 1999 and 2020 based on magnetic field observations collected by the low-Earth orbit satellites Swarm, CryoSat-2, CHAMP, SAC-C and Ørsted, and on annual differences of
Christopher C. Finlay   +6 more
doaj   +1 more source

Applications for CryoSat-2 satellite magnetic data in studies of Earth’s core field variations

open access: yesEarth, Planets and Space, 2021
We use 20 years of continuous magnetic field measurements from the Ørsted, CHAMP and Swarm satellite missions, supplemented by calibrated platform magnetometer data from the CryoSat-2 satellite, to study time variations of the Earth’s core field at ...
Magnus D. Hammer   +2 more
doaj   +1 more source

Geomagnetism review 2017 [PDF]

open access: yes, 2018
The Geomagnetism team measures, records, models and interprets variations in the Earth’s magnetic field. Our data and research help to develop our scientific understanding of geomagnetic changes in the solid Earth and in the Earth’s atmospheric and space

core   +3 more sources

Simulating the dependence of seismo-ionospheric coupling on the magnetic field inclination [PDF]

open access: yesAnnales Geophysicae, 2018
Infrasound generated during a seismic event upon reaching the ionospheric heights possesses the ability to perturb the ionosphere. Detailed modelling investigation considering 1-D dissipative linear dynamics, however, indicates that the magnitude of ...
L. M. Joshi   +4 more
doaj   +1 more source

The afternoon counter-electrojet current system along the 75°E meridian during the IEEY

open access: yesEarth, Planets and Space, 2017
In the present study, the technique of principal component analysis (PCA) is applied to analyze the hourly mean values of geomagnetic field components D, H, and Z along an Indo-Russian chain of stations during the International Equatorial Electrojet Year
S. K. Bhardwaj, P. B. V. Subba Rao
doaj   +1 more source

Deep Electron Density Depletion Near Sunset Terminator on St. Patrick's Day Storm and Its Impacts on Skywave Propagation

open access: yesSpace Weather, 2023
The plasma density distribution in the equatorial and low latitude ionosphere can often be severely disturbed during active space weather events that can have paramount impacts on the long‐distance high frequency (HF) radio wave (Skywave) communications ...
M. Ankita   +3 more
doaj   +1 more source

Geomagnetism : review 2009 [PDF]

open access: yes, 2010
The Geomagnetism team measures, records, models and interprets variations in the Earth’s natural magnetic fields, across the world and over time. Our data and expertise help to develop scientific understanding of the evolution of the solid Earth and its ...
Thomson, Alan W.P.
core   +3 more sources

The Gridded Geomagnetic Field of India with MATLAB GUI

open access: yesData Science Journal
A unique two-dimensional gridded geomagnetic map of India is constructed using the geomagnetic field observations from 11 observatories of India, operated by the Indian Institute of Geomagnetism. In order to create the spatial grid, 11 spatial techniques
Jayashree Bulusu   +6 more
doaj   +1 more source

Co-estimating geomagnetic field and calibration parameters: modeling Earth’s magnetic field with platform magnetometer data

open access: yesEarth, Planets and Space, 2021
Models of the geomagnetic field rely on magnetic data of high spatial and temporal resolution to give an accurate picture of the Earth’s internal magnetic field and its time-dependence.
Clemens Kloss   +2 more
doaj   +1 more source

Geomagnetism and aeronomy in Croatia, 1995–1998 [PDF]

open access: yes, 1999
Geomagnetism and aeronomy in Croatia, 1995 ...
Lisac, Inga
core   +1 more source

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