Results 141 to 150 of about 13,117,941 (259)

Transition of Glacial Regimes Recorded at IODP Site U1524 in the Ross Sea, Antarctica, Over the Last 800 Thousand Years

Paleoceanography and Paleoclimatology, Volume 41, Issue 10, October 2026.
Abstract Reconstructing past interactions between the West Antarctic Ice Sheet (WAIS) and changing environmental conditions in the Ross Sea region can help determine long‐term WAIS stability. Existing sedimentary records reveal changes to oceanography, sea ice and ice sheet extent over the glacial‐interglacial cycles of the last ∼800 kyr.
J. W. Marschalek, T. van de Flierdt, M. O. Patterson, G. Grant, S. Kim, W. Xiao, Q. Li, G. Cortese, S. Bombard, R. M. Leckie, H. Ishii, T. van Peer, C. Xuan, S. Sugisaki, J. Müller, D. Kaufman, D. K. Kulhanek, K. J. Licht, S. R. Hemming, O. Seki, E. Colizza, F. Torricella, J. Gales, B. W. Romans, N. Varela, L. De Santis, R. M. McKay   +26 more
wiley   +1 more source

Variation of Global Ionospheric Scintillation and Its Effect on GPS Kinematic PPP‐AR Performance During Geomagnetic Storms in Solar Cycle 25: A Statistical Analysis

Space Weather, Volume 24, Issue 10, October 2026.
Abstract Enhanced small‐scale ionospheric irregularities during geomagnetic storms can disturb Global Navigation Satellite System (GNSS) carrier‐phase tracking and are associated with reduced stability of ambiguity‐fixed precise point positioning (PPP‐AR), but their impact on kinematic positioning remains insufficiently quantified.
Dongsheng Zhao, Qichen Zhao, Shuanglei Cui, Kefei Zhang, Longjiang Li, Wang Li, Zhongchao Shi, Craig M. Hancock   +7 more
wiley   +1 more source

Ionospheric Mechanisms Leading to Plasma‐Bubble Zonal Drift Reversal and Deformation During the 12 November 2025 Geomagnetic Storm

Space Weather, Volume 24, Issue 10, October 2026.
Abstract We present a multi‐instrument analysis of the ionospheric response to the intense geomagnetic storm of 12 November 2025 over the American sector, with emphasis on the longitudinally asymmetric deformation, latitudinal expansion, and zonal drift reversal of equatorial plasma bubbles (EPBs).
G. A. S. Picanço, I. Galkin, P. Song, E. Astafyeva, L. C. A. Resende, J. P. Marchezi, L. A. da Silva, P. R. Fagundes, C. M. Denardini, C. Martinis, A. M. Santos, V. G. Pillat, A. J. Coster, A. L. Christovam, S. R. Laranja, M. A. M. Lopes   +15 more
wiley   +1 more source

ScintPi 4.0: A New GNSS‐Based Low‐Cost, Multi‐Constellation, Multi‐Frequency Ionospheric Scintillation and TEC Monitor for Education, Citizen Science, and Research Initiatives

Space Weather, Volume 24, Issue 10, October 2026.
Abstract ScintPi is a series of alternative ionospheric scintillation and total electron content (TEC) monitors. ScintPi monitors have been built by combining single‐board computers (Raspberry Pi) and commercial off‐the‐shelf (COTS) Global Navigation Satellite System (GNSS) receivers.
Isaac G. Wright, Josemaria Gomez Socola, Fabiano S. Rodrigues, Mário A. N. Azevedo Filho   +3 more
wiley   +1 more source

A Gaussian Process Regression Framework for Slant Ionospheric Delay Interpolation and Uncertainty Quantification With Applications to PPP‐RTK

Space Weather, Volume 24, Issue 10, October 2026.
Abstract Reliable slant ionospheric information is crucial for Precise Point Positioning Real‐time Kinematic (PPP‐RTK), yet its correction in low‐latitude regions remains difficult because of ionospheric variability, observable anomalies, and insufficiently reliable uncertainty characterization.
Gaojian Zhang, Qile Zhao, Jun Tao, Yihao Jiang, Jie Zhang   +4 more
wiley   +1 more source

Thermospheric Neutral Species Reduced Order Probabilistic Emulator: Dimensionality Reduction

Space Weather, Volume 24, Issue 10, October 2026.
Abstract One area of significant interest for space operations is the application of physics‐based thermosphere models for accurate drag modeling. However, their computational complexity limits their use in operational settings. To address this, recently developed reduced‐order probabilistic emulators (ROPE) based on the Thermosphere‐Ionosphere ...
Nathaniel E. Michek, Piyush M. Mehta
wiley   +1 more source

Discrepancies and Transformation Between Space‐Based and Ground‐Based Dst Indices: Insights From Swarm and CSES

Space Weather, Volume 24, Issue 10, October 2026.
Abstract The Disturbance Storm Time (Dst) index is a critical metric primarily reflecting the intensity of symmetric part of the magnetospheric ring current. Although satellite magnetometry has enabled the calculation of a space‐based Dst index, such measurements exhibit a systematic bias when compared to the conventionally used ground‐based Dst. Using
Mengjie Wang, Yanyan Yang, Yong Ji, Zeren Zhima, Chao Xiong, Jie Wang, Roberto Battiston, Mirko Piersanti, Bin Zhou   +8 more
wiley   +1 more source

Simple additional constraints on regional models of the geomagnetic secular variation field

, 1996
Lecter section of Physics of the Earth and Planetary Interiors 97 (1996)Standard ways of building regional models of the geomagnetic field fail when one wishes to model secular variation (SV).
Torta, J. M., De Santis, A., Falcone, C.
core   +1 more source

MP‐DualNet: A Dual‐Branch Deep Learning Approach for Magnetopause Boundary Detection Using Simulated SXI Images

Space Weather, Volume 24, Issue 10, October 2026.
Abstract The Earth's magnetopause is a key boundary governing solar wind–magnetosphere coupling. The Solar wind Magnetosphere Ionosphere Link Explorer (SMILE) mission will provide global soft X‐ray imaging of the magnetosphere through solar wind charge exchange (SWCX) emission, offering a new opportunity for remote sensing of magnetopause dynamics ...
Cheng Zhong, Zhongwei Yang, Tianran Sun, Chengyan Huang, Jiajia Liu, Jingnan Guo, Yuming Wang, Chi Wang   +7 more
wiley   +1 more source

Global Geomagnetic Field Models

Progress Code: completedStatement: Operators of the global network of geomagnetic observatories (including Geoscience Australia) The European Space Agency and the Danish Meteorological Institute as the operators of geomagnetic field satellites.

core