Results 31 to 40 of about 745 (152)

Long‐Term Increase in Equatorial Rayleigh‐Taylor Instability: Synergistic Effects of Greenhouse Gas Cooling and Geomagnetic Field Secular Variation

Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract Equatorial plasma bubbles (EPBs) are ionospheric irregularities generated by Rayleigh–Taylor instability (RTI) that disrupt satellite communications. We quantify secular change of RTI growth rates and isolate underlying drivers using WACCM‐X simulations.
Liying Qian, Chih‐Ting Hsu, Wenbin Wang, Shun‐Rong Zhang, Joseph McInerney   +4 more
wiley   +1 more source

Evidence for Missing Geomagnetic Reversals From Geomagnetic Reversal Frequency Model Using Adaptive Kernel Density Estimation

Geophysical Research Letters
The existence of missing geomagnetic reversals has been proposed, with potential for new magnetostratigraphic age controls. We estimate geomagnetic reversal frequency from 0 to 155 Ma using adaptive‐bandwidth kernel density estimation (AKDE) to evaluate ...
Yutaka Yoshimura, Masakazu Fujii, Hideitsu Hino, Shotaro Akaho, Satoshi Kuriki, Osamu Ishizuka, Toshitsugu Yamazaki, Hyeon‐Seon Ahn, Tesfaye Kidane, Yuhji Yamamoto, Yo‐ichiro Otofuji   +10 more
doaj   +1 more source

First Observation of Four‐Band Ion Cyclotron Whistlers

Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract Ion cyclotron whistlers are frequently observed in low Earth orbit, typically formed when right‐hand polarized lightning whistlers undergo polarization reversal at crossover frequencies. In this study, we for the first time report a four‐band ion cyclotron whistler event detected by Van Allen Probe A.
Huicong Chen, Hui Zhu, Tao Xian, Gaopeng Lu, Yingying Zhao, Zhijie Qin, Zhenghao She   +6 more
wiley   +1 more source

An Innovative Approach for Estimating Coseismic Surface Uplifts Using Ionospheric Observations From Remote GNSS Stations: First Application for the 2025 Myanmar Earthquake

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract The Mw 7.7 Myanmar earthquake on 28 March 2025 ruptured ∼480 km of the Sagaing Fault. Its fault slip distribution remains poorly constrained by three‐dimensional surface displacement data due to sparse GNSS‐coverage near the fault. Satellite‐based synthetic aperture radars capture meters of right‐lateral displacements but isolating vertical ...
Mala S. Bagiya, Shubham K. Rajewar, Kosuke Heki, Vineet K. Gahalaut, Neeraj Gurjar, A. P. Dimri   +5 more
wiley   +1 more source

Two Records of Relative Paleointensity for the Past 4 Myr

Frontiers in Earth Science, 2020
We performed new high-resolution magnetic measurements of sedimentary cores from the east northern Pacific ODP Site 1021 and the East equatorial Pacific ODP Site 851.
Jean-Pierre Valet, Anojh Thevarasan, Franck Bassinot, Tatiana Savranskaia, Naoufel Haddam   +4 more
doaj   +1 more source

Enhancement of Magnetic Flux Transferred to the Magnetotail Due to a Storm‐Time Kelvin‐Helmholtz Instability

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract Along the flank magnetopause, magnetosheath flow interfaced with the relatively stationary magnetosphere produces strong flow shears, and the Kelvin‐Helmholtz instability (KHI) occurs. When the interplanetary magnetic field (IMF) is southward, anti‐parallel day‐side reconnection and KHI can interact, which may enhance the reconnection rate as ...
Brandon L. Burkholder, Katariina Nykyri, Xuanye Ma, Lauri Holappa, Harsha Gurram, Rachel C. Rice, David Sibeck, Dinesh K. V. Radhakrishnan   +7 more
wiley   +1 more source

Modeling Geomagnetic Field Reversals with Coupled Particles in a Double-Well Potential

Albanian Journal of Natural and Technical Sciences
We study a minimal model of geomagnetic field reversals, inspired by Molina-Cardin et al. (2021), in which two particles evolve in a double-well potential and interact through elastic coupling.
Klaudio Peqini
doaj   +1 more source

GPS TEC Fluctuations in the Low and High Latitudes During the 2015 St. Patrick`s Day Storm [PDF]

Journal of Astronomy and Space Sciences, 2017
As a part of collaborative efforts to understand ionospheric irregularities, the Korea ionospheric scintillation sites (KISS) network has been built based on global positioning system (GPS) receivers with sampling rates higher than 1 Hz.
Jong-Kyun Chung, Junseok Hong, Sung-Moon Yoo, Jeong-Han Kim, Geonhwa Jee, Valery V. Hegai   +5 more
doaj   +1 more source

Strong‐Magnetic Flexible Composites for Magnetically Responsive Soft Robots

Advanced Robotics Research, Volume 2, Issue 5, October 2026.
This perspective provides an overview of the performance mechanisms, preparation methods, and applications of strong magnetic flexible composite materials in soft actuators (such as gripping, movement, and sensing), and further explores current opportunities and challenges.
Wenwen Li, Shuai Liu, Xinyi Wang, Xinglong Gong, Shouhu Xuan   +4 more
wiley   +1 more source

The Aurora Vent Field at the Transition From Magmatic Accretion to Tectonic Extension on Gakkel Ridge: Constraints From Microseismicity and Aeromagnetic Observations

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 10, October 2026.
Abstract The Aurora hydrothermal vent field (AVF) is the first confirmed active vent system on the Arctic Ocean seafloor, located at the western end of the ultraslow spreading Gakkel Ridge. It marks a distinctive endmember among ridge‐axis hydrothermal systems, where volcanic construction and ultramafic influence co‐exist.
Matthias Pilot, Mechita C. Schmidt‐Aursch, Graeme Eagles, Vera Schlindwein   +3 more
wiley   +1 more source