Results 171 to 180 of about 2,895 (251)

Geophysical insights from the first geomagnetic field absolute intensity curve for central Asia (2200BCE-2000CE), and implications for archaeomagnetic dating. [PDF]

Sci Rep
Bonilla-Alba R, Gómez-Paccard M, Pavón-Carrasco FJ, Chauvin A, Beamud E, Martínez-Ferreras V, Gurt-Esparraguera JM, Luneau E, Osete ML.   +8 more
europepmc   +1 more source

Statistical Evaluation of a Foreshock Transient Model Using Ground‐Based ULF Wave Observations

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract Hot flow anomalies and foreshock bubbles are discontinuity–driven foreshock transients that generate significant geospace disturbances. A recently developed analytical model can predict their upstream perturbations. In this study, we further evaluate this model by comparing its predictions with geomagnetic disturbances measured by ground‐based
Terry Zixu Liu, Vassilis Angelopoulos, Hui Zhang, Ying‐Dong Jia, Siqi Zhao   +4 more
wiley   +1 more source

Paleomagnetic Constraints on the Separation of the Olongbuluke Block From the North China Block During the Late Cambrian–Middle Ordovician and Its Tectonic Significance

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract The collisional evolution of the micro‐blocks in the northeastern Tibetan Plateau is relatively well constrained. However, the reason why a fragment of the North China Block, the Olongbuluke Block, became separated from North China by the Central Qilian Block (a fragment of the South China Block) remains unclear.
Teng Wang, Yanan Zhou, Ruiyang Chai, Xin Cheng, Hanning Wu   +4 more
wiley   +1 more source

Mantle heterogeneity influenced Earth's ancient magnetic field. [PDF]

Nat Geosci
Biggin AJ, Davies CJ, Mound JE, Lloyd SJ, Engbers YE, Thallner D, Clarke AT, Bono RK.   +7 more
europepmc   +1 more source

Direct Observations of Large‐Scale Wave Structure and Post‐Sunset Rise of the Ionosphere in the Generation of Equatorial Spread F

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract Large‐scale wave structure (LSWS) and the post‐sunset rise (PSSR) are two key factors in the generation of equatorial spread F (ESF). In this study, we reported continuous and direct observations of LSWS and PSSR and their effects on seeding ESF by Sanya incoherent scatter radar (SYISR) and ionosonde in September–October 2024.
Qi Jiang, Jiuhou Lei, Xinan Yue, Fuqing Huang, Rong Xia, Tong Dang, Xiaoli Luan   +6 more
wiley   +1 more source

Archaeomagnetic evidence indicates post-Inka reheating of metallurgical kilns at Quillay (NW Argentina). [PDF]

PLoS One
Del Río J, Gómez-Paccard M, Palencia-Ortas A, Chauvin A, Basile M, Ratto N, Cruz P, Giovannetti MA.   +7 more
europepmc   +1 more source

First Kinetic 3‐D Simulations of the High‐Latitude Electrojet Spanning an Entire Turbulent Flux Tube

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract Radar and rocket observations of the terrestrial ionosphere frequently measure turbulent plasma waves, especially during geospace storms. The non‐linear behavior of these waves remains poorly characterized. This paper presents the first fully kinetic 3‐D particle‐in‐cell simulations of Farley–Buneman (FB) turbulence spanning an entire high ...
Meers Oppenheim, Y. Dimant, R. Koontaweepunya, A. Q. Green, S. Evans   +4 more
wiley   +1 more source

A neural network-based automatic semi-variogram modeling approach for geomagnetic map construction in multi-source indoor and outdoor navigation. [PDF]

Sci Rep
Zhan C, Huang P, Xue B, Lan B.
europepmc   +1 more source

Local Evolution of a Prenoon Drainage Plume

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract Plasmaspheric drainage plumes are typically observed in the postnoon sector during geomagnetic storms, but their local evolution in the prenoon sector remains poorly understood. Here, we report in situ observations from the Van Allen Probe, revealing multiple localized enhancements in cold electron density near apogee in the prenoon sector ...
Suk‐Bin Kang, Mei‐Ching Fok, Cristian Ferradas, Alex Glocer, Megha Pandya, J. D. Huba   +5 more
wiley   +1 more source

Complexity analyses of geomagnetic and solar activity indices time series. [PDF]

Sci Rep
Javaherian M, Mollaei S, Zolghadr N, Moradpour H, Yousefzadeh M.   +4 more
europepmc   +1 more source