Results 201 to 210 of about 31,676 (285)

Complex Environmental Geomagnetic Matching-Assisted Navigation Algorithm Based on Improved Extreme Learning Machine. [PDF]

Sensors (Basel)
Huang J, Hu Z, Yi W.
europepmc   +1 more source

Long‐Term Trends of Ionospheric Peak Electron Density and Height

Space Weather, Volume 24, Issue 5, May 2026.
Abstract Long‐term trends in ionospheric electron density have been investigated using vertical sounding data from 14 ionosonde stations spanning European, Asian, and American longitude sectors. The study examines the relationship between the ionospheric F2 layer peak electron density (NmF2) and height (hmF2) at noontime and midnight with the solar 30 ...
N. Jakowski, M. M. Hoque, M. G. Tan Jun Rios   +2 more
wiley   +1 more source

A database of geomagnetic observatory monthly means: from historic to the satellite era. [PDF]

Earth Planets Space
Brown W, Macmillan S, Maume E, Eaton E.
europepmc   +1 more source

Post‐Eocene 90° CCW Rotation of Sardinia‐South Corsica: Paleomagnetic Evidence From Permian‐Cretaceous Sediments of Nurra (NW Sardinia)

Tectonics, Volume 45, Issue 5, May 2026.
Abstract The paleomagnetism of Miocene calc‐alkaline volcanics and sediments from Sardinia has firmly showed that the Corsica‐Sardinia microplate rotated 50°–60° counterclockwise (CCW) with respect to Europe between 21 and 15 Ma, during its drift from the Provencal margin. However, Permian to Eocene rocks from central‐south Sardinia revealed higher (up
Gaia Siravo, Fabio Speranza, Giacomo Oggiano, Lilla Spagnuolo   +3 more
wiley   +1 more source

Unprecedented extreme depletion of Earth's ionosphere during the May 2024 super geomagnetic storm revealed by the Chinese Meridian Project. [PDF]

Natl Sci Rev
Cao J.
europepmc   +1 more source

Magma and Volatile Pathways Beneath Sakurajima Volcano From Self‐Potential, Helium Isotopes, and Broadband Magnetotellurics

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract At frequently erupting volcanoes, magma and volatiles ascend through established pathways, but the complete picture of their branching and supply system remains unclear. We integrated self‐potential (SP), broadband magnetotelluric (MT), and helium isotope observations to image magma and volatile pathways beneath Sakurajima Volcano.
K. Aizawa, T. Koyama, H. Hase, M. Uyeshima, H. Sumino   +4 more
wiley   +1 more source

Cognitive Radio-Based Ionospheric Scintillation Detection: A Low-Cost Framework for GNSS Detection and Monitoring in Equatorial Regions. [PDF]

Sensors (Basel)
Rodríguez JO, Dos Santos WA, Candido CN, Traslaviña DS, Tafur CL, Daza PM, Rodríguez Barón IF.   +6 more
europepmc   +1 more source

Magnetic Signatures of a Plasma Wake Behind the Swarm Satellites

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract This study provides first observational evidence of a plasma wake behind ESA's Swarm satellites, manifesting itself by a brief magnetic field strength spike and bipolar field variations in transverse direction. These magnetic signatures occur only near the dip‐equator where the magnetic declination is close to zero.
Chao Xiong, Xinyi Rang, Hermann Lühr, Fan Yin   +3 more
wiley   +1 more source

Exploring the relationship between space weather conditions and power performance of EgyptSat-1 using machine learning. [PDF]

Sci Rep
Elfiky D, Ali MAB, Mostafa MS, Hesham N, Ahmed AM, Ibrahim SK.   +5 more
europepmc   +1 more source

A Novel Technique for Extracting the Tidal Magnetic Field: Methodology and Application to a Pre‐Processed Dataset of CSES and Swarm

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract The oceanic tidal magnetic field, mainly driven by the circular orbital motion of the Moon, is an essential part of the time‐varying geomagnetic field. The previously adopted time‐harmonic (TH) base worked well in fitting the primary M2 ${M}_{2}$ tidal field, but extracting the other weaker modes like the N2 ${N}_{2}$ was difficult with only a
Haoren Ma, Yanyan Yang, Zhaojin Rong, Dongquan Wang, Jiawei Gao, Zeren Zhima, Jie Wang, Bin Zhou, Werner Magnes, Fei He, Y. Wei   +10 more
wiley   +1 more source