Results 121 to 130 of about 21,226 (301)

Spatial and temporal spectra of the geomagnetic field and their scaling properties

open access: yes, 2003
Many natural phenomena show a relationship between their spatial and temporal Fourier spectra. This paper discusses such a connection for the geomagnetic field, when some assumptions are made about the (exponential or power-law) behaviour of the ...
Barraclough, D. R.   +2 more
core   +1 more source

Large‐Scale Traveling Ionospheric Disturbances Over the Asian‐Pacific Sector During 10–11 May 2024 Geomagnetic Superstorm: Ionosonde Observation and MAGE Simulation

open access: yesGeophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract The large‐scale traveling ionospheric disturbances (LSTIDs) over the Asian‐Pacific sector during the 10–11 May 2024 superstorm are investigated using ionosonde observation and simulation from a whole geospace model—Multiscale Atmosphere Geospace Environment (MAGE), which fully couples multiple magnetosphere, ionosphere and thermosphere models.
Tianyang Hu   +6 more
wiley   +1 more source

Recent geomagnetic storms observed by Macau Science Satellite-1

open access: yesEarth and Planetary Physics
Geomagnetic storms are rapid disturbances of the Earth’s magnetosphere. They are related to many geophysical phenomena and have large influences on human activities.
Qing Yan, HongBo Yao
doaj   +1 more source

The geomagnetic field in Croatia [PDF]

open access: yesGeofizika, 2006
In this study we present the distribution of the geomagnetic field components: declination D, horizontal intensity H, inclination I, total field intensity F, as well as the crustal and anomaly geomagnetic fields over the region of Croatia for the 2003.76 epoch, calculated using the Comprehensive model CM4 (Sabaka et al., 2004).The smooth change of D, H,
openaire  

Global Observational Comparison of Large‐Scale Traveling Atmospheric and Ionospheric Disturbances During the May 2024 Geomagnetic Storm

open access: yesGeophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract During the geomagnetic storm on 10 May 2024, neutral density measurements from 14 Tianmu, Swarm, and GRACE‐FO satellites at ∼510 km altitude, combined with total electron content (TEC) observations, enabled the first global observational comparison of large‐scale traveling atmospheric and ionospheric disturbances (LSTADs/TIDs) via snapshots ...
Xiaolong Wei   +8 more
wiley   +1 more source

Plate motion and a dipolar geomagnetic field at 3.25 Ga. [PDF]

open access: yesProc Natl Acad Sci U S A, 2022
Brenner AR   +4 more
europepmc   +1 more source

Energy deposition in the lower auroral ionosphere through energetic particle precipitation [PDF]

open access: yes, 2002
Ground-based imaging and broad beam riometers are used in conjunction with ionospheric radars and satellite instruments to investigate high-energy precipitation in the auroral zone.
Kavanagh, Andrew John
core  

Energy Dependence of Energetic Electron Precipitation Rates Near the Foot of Electron Isotropy Boundary

open access: yesGeophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract We report a rare quiet‐time observation by NOAA‐18 spacecraft flying nearly along the electron isotropy boundary (IBe). Complemented by data from four nearby meridional IBe crossings of other POES spacecraft, this case study provides a novel quantitative information concerning the regular energy dependence of the loss‐cone filling ratio (Jprec/
V. A. Sergeev   +5 more
wiley   +1 more source

Reconstructing biblical military campaigns using geomagnetic field data. [PDF]

open access: yesProc Natl Acad Sci U S A, 2022
Vaknin Y   +19 more
europepmc   +1 more source

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