Results 91 to 100 of about 24,514,648 (166)

The Dense MORB Fraction Controls the Dynamic Stability and Hydration Potential of the Mantle Transition Zone

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract The mantle transition zone (MTZ; ∼410–660 km depth) is a major reservoir of water and mid‐ocean ridge basalt (MORB)‐like materials, yet how composition and hydration regulate its physical stability remains unclear. Using geodynamical modeling, we examine the joint effect of water content and dense MORB fraction on the density, viscosity, and ...
Zhensheng Wang, Sierd Cloetingh, Alexander Koptev, Qin Wang, Alessio Lavecchia, István Kovács, Timothy Kusky   +6 more
wiley   +1 more source

The Spanish contribution to IGRF-14

Earth, Planets and Space
This study presents the methodology and results of the Spanish team contribution to the 14th generation of the International Geomagnetic Reference Field (IGRF-14), headed by Universidad Complutense de Madrid (UCM).
Mario Serrano, F. Javier Pavón-Carrasco, Saioa A. Campuzano, Santiago Marsal, J. Miquel Torta, J. Manuel Tordesillas, Julián Fiz   +6 more
doaj   +1 more source

Chorus Wave‐Induced Ionospheric Variability

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Electron microbursts are short‐lived but intense electron precipitation and constitute a significant source of electron losses into the ionosphere and lower atmosphere. They are primarily produced by wave‐particle interaction with chorus waves in the magnetosphere.
Lunjin Chen, Grant D. Berland, Robert A. Marshall, Jun Liang, Huayue Chen, Zhiyang Xia   +5 more
wiley   +1 more source

Neutral Wind Control of Jupiter's Non‐Auroral Ionosphere

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract We use JAMMIES (JAMMIES is Another Model Making Ionospheric EStimates), a new model of Jupiter's non‐auroral ionosphere, to demonstrate that neutral wind‐driven field‐aligned plasma transport can explain decades of measurements inconsistent with a solar‐dominated ionosphere. Two observations highlight these inconsistencies: a minimum in H3+ ${\
K. Mohamed, O. Agiwal, L. Moore, I. Mueller‐Wodarg, J. D. Huba, C. Martinis, T. Stallard, H. Melin   +7 more
wiley   +1 more source

Association of Picket‐Fence With Auroral Continuum Emissions

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract We present observations of aurora‐like “picket‐fence” emissions occurring simultaneously with broad‐band auroral continuum emission structures. The continuum structures exhibit spectral properties similar to the Strong Thermal Emission Velocity Enhancement (STEVE), but appear at higher latitudes, alongside the aurora.
J. Houghton, E. Spanswick, J. Liang, K. Davidson, B. Gallardo‐Lacourt, Y. Nishimura   +5 more
wiley   +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, Xinlin Li, Zheng Xiang, Declan O’Brien, Theodore Sarris, Misty Chien, Wesley Martin   +6 more
wiley   +1 more source

Early Eocene Compressional Deformation in the Northeastern Tibetan Plateau Recorded by Magnetic Fabrics of the Longzhong Basin

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Intracontinental deformation records how early Eocene India–Asia collisional stress propagated into continental interiors. How rapidly compression reached the far field, and whether coeval Paleo‐Pacific slab dynamics contributed, remain debated. The Longzhong Basin, ∼1,900 km north of the collisional zone, provides a key test.
Zhantao Feng, Niels Meijer, Weilin Zhang, Guillaume Dupont‐Nivet, Wanlong Xu, Tao Zhang, Jinbo Zan, Yibo Yang, Xiaomin Fang   +8 more
wiley   +1 more source

Reduced to the Pole of Total Magnetic field Anomaly of Seulawah Agam Volcano, Aceh Besar

Journal of Aceh Physics Society, 2018
Telah dilakukan penelitian dengan menggunakan metode magnetik pada kawasan Gunung Api Seulawah Agam, Aceh Besar untuk mempelajari respon anomali medan magnetik total berdasarkan hasil transformasi reduksi ke kutub.
Masyithah Masyitah, Nazli Ismail, Marwan Marwan   +2 more
doaj  

Second generation of CSES global geomagnetic field model (CGGM-2) and associated candidate models for IGRF-14

Earth, Planets and Space
This paper presents the second generation of the China Seismo-Electromagnetic Satellite (CSES) Global Geomagnetic Field Model (CGGM-2), specifically designed to derive candidate models for the fourteenth generation of the International Geomagnetic ...
Yanyan Yang, Zhima Zeren, Gauthier Hulot, Jie Wang, Nils Olsen, Siquan Yang, Bin Zhou, Werner Magnes, Bingjun Cheng, Jianpin Huang, Louis Chauvet, Dehe Yang, Roland Lammegger, Jian Lin, Dapeng Liu, Hengxin Lu, Na Zhou, Rui Yan, Zhenxia Zhang, Wei Chu, Song Xu, He Huang, Jing Cui, Qiao Tan, Wenjing Li, Feng Guo   +25 more
doaj   +1 more source

The Fúquene National Geomagnetic Observatory: A journey through its past, present, and future

Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales
This paper offers a comprehensive analysis of the Fúquene National Geomagnetic Observatory’s pivotal role in the history of geomagnetic research and its renewed significance in the study of geomagnetism and space weather monitoring. Geomagnetism plays a
María Rosa Alva Carmona, Santiago Vargas-Domínguez, Jean Villafane, Esteban Cortés-Rojas, Santiago Pinzón-Cortes, Natalia Gómez-Pérez, Enrique Torres Moya, Carlos Andrés Franco Prieto   +7 more
doaj   +1 more source