Results 71 to 80 of about 1,592 (183)

Iridium Communications Satellite Constellation Data for Study of Earth's Magnetic Field

Geochemistry, Geophysics, Geosystems, 2021
Characterization of Earth's magnetic field is key to understanding dynamics of the core. We assess whether Iridium Communications magnetometer data can be used for this purpose since.
Brian J. Anderson, Regupathi Angappan, Ankit Barik, Sarah K. Vines, Sabine Stanley, Pietro N. Bernasconi, Haje Korth, Robin J. Barnes   +7 more
doaj   +1 more source

Identifying Alfvénic Modulation of Quasi‐Static Potential Structures Above Aurora by Optical Methods

Journal of Geophysical Research: Space Physics, Volume 131, Issue 9, September 2026.
Abstract Much observational evidence exists for the presence of quasi‐electrostatic potential drops above aurorae and their role in acceleration of auroral electrons. However, the temporal evolution of these potential structures is less well studied. We present an optical‐only method for investigating counter‐flowing auroral forms, hypothesized to be ...
N. Brindley, D. Whiter
wiley   +1 more source

Candidate models for the IGRF-11th generation making use of extrapolated observatory data [PDF]

, 2010
International audienceThree candidate models are produced in response to the call for IGRF-11 models. A main field model around epoch 2005.0 is based on one year of ørsted and CHAMP measurements, and is proposed for the definitive model for epoch 2005.0.
Langlais, Benoît, Aude Chambodut, Thébault, Erwan, Arnaud Chulliat, Hulot, Gauthier, Chulliat, Arnaud, Michel Menvielle, Gauthier Hulot, Chambodut, Aude, Menvielle, Michel, Erwan Thébault, Benoit Langlais   +11 more
core   +1 more source

Another view on IGRF commercialization

Eos, Transactions American Geophysical Union, 1991
The purpose of this article is to add to Patrick Taylor's arguments against commercialization of the International Geomagnetic Reference Field (IGRF) (Eos, April 16, 1991), and to examine the long‐term future of the global network of magnetic observatories.
openaire   +1 more source

Magnetic Dual‐Layer Equivalent Sources on the Sphere

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 9, September 2026.
Abstract The equivalent source method is widely used for processing and interpolating magnetic data, particularly in airborne surveys. However, implementations based on Cartesian coordinates present limitations at regional and global scales, where Earth curvature introduces geometric inconsistencies that affect data integration and modeling accuracy ...
Arthur Siqueira‐Macedo, Leonardo Uieda, India Uppal   +2 more
wiley   +1 more source

Evaluation of candidate geomagnetic field models for IGRF-₁₂ [PDF]

Background: The 12th revision of the International Geomagnetic Reference Field (IGRF) was issued in December 2014 by the International Association of Geomagnetism and Aeronomy (IAGA) Division V Working Group V-MOD (http://www.ngdc.noaa.gov/IAGA/vmod/igrf.
Manoj C, Canet E, Lesur V, Lowes FJ, Rother M, Schachtschneider R, Beggan CD, Alken P, Thebault E, Chulliat A, Langlais B, Finlay CC   +11 more
core   +4 more sources

Neural Network Imputation of the Pitch‐Angle‐Resolved Medium‐Energy Electron Flux Data in LEO

Space Weather, Volume 24, Issue 9, September 2026.
Abstract Pitch‐angle‐resolved electron flux data are crucial for investigating variations in electron flux within the magnetosphere and the underlying mechanisms, such as radial diffusion and wave‐particle interactions. The Medium‐Energy Electron Detector (MEED) onboard the Fengyun‐3E (FY‐3E) satellite in Low Earth Orbit (LEO) provides 18‐directional ...
Jia‐Li Chen, Hong Zou, Yu‐Guang Ye, Jia‐Chen Sun, Tian‐Hao Li   +4 more
wiley   +1 more source

Model Sederhana IGRF Regional Indonesia 2010-2015

, 2010
Kebutuhan untuk mengetahui medan geomagnet utama tanpa pengaruh faktor eksternal sangat besar bagi para surveyor pertambangan, pengguna atau penyedia navigasi satelit dan ilmuwan -ilmuwan yang mempelajari cuaca ...
Fitri Nuraeni
core  

Geomagnetic field modelling and USTHB IGRF-14 candidates

Earth, Planets and Space
The present paper describes the construction of a global spherical harmonic model of the geomagnetic field, developed as the USTHB (University of Science and Technology Houari Boumediene) candidate for the 14th generation of International Geomagnetic ...
Abdenaceur Lemgharbi, M. Hamoudi, V. Lesur, M. Mandea, T. Amezza, A. Abtout   +5 more
doaj   +1 more source

Investigation of the westward drift of the earth’s main geomagnetic field based on the spatial distribution of secular variation derived from IGRF-14 [PDF]

E3S Web of Conferences
Westward drift of the Earth's magnetic field is an important manifestation of geomagnetic secular variation and provides information on fluid dynamics within the outer core.
Shakhriev Bekuz, Shukurov Zukhriddin
doaj   +1 more source