Results 71 to 80 of about 3,303 (168)

Abrupt Disappearance of Plasmaspheric Hiss Inside the Magnetic Dip

Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract Plasmaspheric hiss plays an important role in radiation belt electron dynamics, and its excitation and propagation have long attracted attention. During a substorm, Van Allen Probe B observed the disappearance of plasmaspheric hiss at the magnetic dip, which was driven by the injection of energetic protons.
Yan Zhuang, Chao Yue, Shan Wang, Haimeng Li, Sibo Xu, Xu‐Zhi Zhou, Qiu‐Gang Zong   +6 more
wiley   +1 more source

The MAGIC of CINEMA: first in-flight science results from a miniaturised anisotropic magnetoresistive magnetometer [PDF]

Annales Geophysicae, 2015
We present the first in-flight results from a novel miniaturised anisotropic magnetoresistive space magnetometer, MAGIC (MAGnetometer from Imperial College), aboard the first CINEMA (CubeSat for Ions, Neutrals, Electrons and MAgnetic fields ...
M. O. Archer, M. O. Archer, T. S. Horbury, P. Brown, J. P. Eastwood, T. M. Oddy, B. J. Whiteside, J. G. Sample   +7 more
doaj   +1 more source

Ionospheric Characterization Using VLF Whistlers

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract Broadband very low frequency (VLF, 3–30 kHz) energy emitted from lightning travels long distances in subionospheric propagation modes. Some of this energy couples into the ionosphere and travels to satellite altitudes along a predominantly field‐aligned path in what is known as a “whistler” propagation mode. Along this path, these VLF signals (
E. R. Worthington, M. B. Cohen
wiley   +1 more source

Geomagnetism : review 2010 [PDF]

, 2011
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 ...

core  

Real-time Magnetometer Disturbance Estimation via Online Nonlinear Programming

, 2019
Magnetometer is a significant sensor for integrated navigation. However, it suffers from many kinds of unknown dynamic magnetic disturbances. We study the problem of online estimating such disturbances via a nonlinear optimization aided by intermediate ...
Wu, Jin
core   +1 more source

Earth magnetic field effects on the cosmic electron flux as background for Cherenkov Telescopes at low energies [PDF]

, 2012
Cosmic ray electrons and positrons constitute an important component of the background for imaging atmospheric Cherenkov Telescope Systems with very low energy thresholds.
A.C. Rovero, A.D. Supanitsky, Ackermann, Ackermann, Adriani, Adriani, Adriani, Aharonian, Aharonian, Albert i Fort, Arnal, Atwood, Chantell, Commichau, Cortina, Delahaye, DuVernois, Finlay, Konopelko, Konopelko, Primack, Rovero, Sacahui, Sahakian, Sahakian, Smart, Störmer   +26 more
core   +2 more sources

Intense Ground Magnetic Perturbations During the 2024 May and October Geomagnetic Storms

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract The May and October 2024 geomagnetic storms represent two of the most intense space weather events of Solar Cycle 25. While differing in global intensity, both storms produced extreme ionospheric disturbances, including equatorward auroral expansion to mid‐latitudes and rapid geomagnetic variations (dH/dt $\text{dH}/\text{dt}$).
P. De Michelis, E. Consolini, F. Giannattasio, G. Consolini   +3 more
wiley   +1 more source

The nature of the highest energy cosmic rays [PDF]

, 1996
Ultra high energy gamma rays produce electron--positron pairs in interactions on the geomagnetic field. The pair electrons suffer magnetic bremsstrahlung and the energy of the primary gamma ray is shared by a bunch of lower energy secondaries.
A. M. Hillas, B. McBreen, D. J. Bird, D. J. Bird, E. Waxman, F. A. Aharonian, F. Halzen, G. Sigl, H. P. Vankov, H. P. Vankov, J. P. Rachen, J. Szabelski, L. J. Kewley, M. Milgrom, M. Vietri, N. Hayashida, N. Hayashida, N. Hayashida, P. Bhattacharjee, R. A. Langel, T. Erber, T. J. L. McComb, T. K. Gaisser, T. Stanev, T. Stanev, Todor Stanev, X. Chi   +26 more
core   +3 more sources

Role of Complex Crustal and Basinal Structures in Onset of an Intracratonic Rift System: An Example From the Onshore Potiguar Basin, Brazilian Equatorial Margin

Basin Research, Volume 38, Issue 2, March/April 2026.
Schematic evolution model of the Onshore Potiguar Basin, illustrating the role of complex crustal and basinal structures in the onset of this intracratonic rift system in NE Brazilian Equatorial Margin. Red arrows indicate the extensional direction and coloured areas on the surface are the Self‐Organizing Maps populations related to crystalline ...
David L. de Castro, Diógenes C. Oliveira, Germano Melo Jr, Gilsijane V. Ramos, Alanny C. C. Melo, Sidnei P. Rostirolla   +5 more
wiley   +1 more source

Recurrent neural network trained with the extended Kalman filter to forecast the geomagnetic secular variation for IGRF-14

Earth, Planets and Space
This study proposes a neural network approach for predicting the geomagnetic secular variation (SV) to improve the accuracy and efficiency of short-term geomagnetic forecasts. The International Geomagnetic Reference Field (IGRF), updated every five years,
Sho Sato, Shin’ya Nakano, Vincent Lesur, Masaki Matsushima, Takuto Minami, Hiroaki Toh   +5 more
doaj   +1 more source