Results 61 to 70 of about 1,592 (183)
Space Weather, Volume 24, Issue 10, October 2026.Abstract The Disturbance Storm Time (Dst) index is a critical metric primarily reflecting the intensity of symmetric part of the magnetospheric ring current. Although satellite magnetometry has enabled the calculation of a space‐based Dst index, such measurements exhibit a systematic bias when compared to the conventionally used ground‐based Dst. Using
Mengjie Wang +8 more
wiley +1 more source
Data Science Journal, 2011 NGII(National Geography Information Institute) of Korea consigned KIGAM(Korea Institute of Geoscience & Mineral Resources) to do absolute geomagnetic measurements on 32 geomagnetic repeat stations evenly distributed on the southern part of Korean ...
Mutaek Lim +4 more
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Space Weather, Volume 24, Issue 10, October 2026.Abstract This study analyzes the 10–12 May 2024 geomagnetic storm using data from the Ebre (Spain) and Livingston Island (Antarctica) geomagnetic observatories, together with modeling approaches to assess its impact on the Spanish power transmission grid.
J. M. Torta, S. Marsal
wiley +1 more source
Space Weather, Volume 24, Issue 10, October 2026.Abstract Space weather events can significantly alter the ionospheric electron density, affecting signal transmission and navigation accuracy in satellite‐based systems. Consequently, there is an urgent need for reliable forecasting of the Thermosphere‐Ionosphere (TI) system.
J. Pereira +5 more
wiley +1 more source
Should IGRF data be commercialized?
Eos, Transactions American Geophysical Union, 1990 At the 1989 International Association of Geomagnetism and Aeronomy meeting in Exeter, U.K., a proposal was presented to support geomagnetic observatories in the Third World by charging commercial users of the International Geomagnetic Reference Field a price for its use. The proposal guarantees research scientists free access to IGRF.
openaire +1 more source
Evolution of Reversed Electron Energy Spectra in Earth’s Radiation Belts Observed by CIRBE
Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.Abstract Following an intense geomagnetic storm (Dst < −150 nT) on 5 November 2023, electron fluxes in the outer radiation belt were reduced by more than three orders of magnitude at energies below ∼700 keV while they were enhanced at ∼1–3 MeV, leading to reversed energy spectra.
Ziye Zhang +6 more
wiley +1 more source
Development of a Systematic Model for Study on the Phenomena of Ionospheric and Geomagnetic Variations [PDF]
Journal of Astronomy and Space Sciences, 1999 Solar activities ejecting high energy particles influence satellites and satellite communications as well as perturb geomagnetic fields. To understand space environments near the Earth being influenced by the Sun, we must study about the magnetosphere ...
Yoo Surn Pyo +6 more
doaj
Report on the magnetic survey in Slovakia for the 2014.5 epoch
Contributions to Geophysics and Geodesy, 2016 The models of the distribution of the elements of the geomagnetic field must be updated regularly. For this purpose geomagnetic measurements have to be carried out repeatedly at geomagnetic observatories as well as at temporary observation points.
Fridrich VALACH +3 more
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Journal of Geophysical Research: Space Physics, Volume 131, Issue 9, September 2026.Abstract Ultra‐low frequency (ULF) waves are crucial drivers of energetic electron radial diffusion in Earth's radiation belts. However, present radial diffusion coefficients are predominantly derived for equatorially mirroring electrons, relying on ULF wave power models from near‐equatorial spacecraft.
G. A. Riggs, W. Tu, T. Sarris
wiley +1 more source
Evaluation of candidate models for the 14th generation International Geomagnetic Reference Field
Earth, Planets and SpaceIn November 2024, the 14th revision of the International Geomagnetic Reference Field (IGRF) was issued by the International Association of Geomagnetism and Aeronomy (IAGA) Division V Working Group (V-MOD).
C. D. Beggan +30 more
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