Results 91 to 100 of about 11,928 (237)

Integrating GPS with GLONASS for high‐rate seismogeodesy

Geophysical Research Letters, 2017
High‐rate GPS is a precious seismogeodetic tool to capture coseismic displacements unambiguously and usually improved by sidereal filtering to mitigate multipath effects dominating the periods of tens of seconds to minutes. We further introduced GLONASS (
Jianghui Geng, Peng Jiang, Jingnan Liu
doaj   +1 more source

3D Water Vapor Signature of Tropical Storms: GNSS Tomography of the 10 Most Severe Rainfall Events in Hong Kong 2015–2025

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 13, 16 July 2026.
Abstract Monitoring water vapor during extreme events is crucial for understanding atmospheric physics, as well as for improving the prediction of severe weather and enhancing early warning systems. The major gap in monitoring water vapor during extreme events lies in the limited spatial and temporal resolutions of existing techniques.
P. Mateus, D. Hui, M. Zhang, R. Fernandes, P. M. A. Miranda   +4 more
wiley   +1 more source

A Conjugate Operator Pair of Partial Differential Equations Bridging Born and Kirchhoff Approximations for Wave‐Equation Inversion

Geophysical Prospecting, Volume 74, Issue 6, July 2026.
ABSTRACT A conjugate operator pair is introduced for wave‐equation Kirchhoff modelling and migration, formulated as time‐space partial differential equations. The operator pair allows for iterative linearized waveform inversion and supports the reconstruction of angle‐dependent reflectivity images. The proposed forward modelling operator represents the
Wei Zhang, Mauricio D. Sacchi
wiley   +1 more source

Common ground: Efficient, consistent, observer‐independent bioacoustic call density estimation with adjudicated ground truth and capture–recapture detection functions

Methods in Ecology and Evolution, Volume 17, Issue 7, Page 2161-2174, July 2026.
Abstract Passive acoustic recording is a cost‐effective method for monitoring vocal animals. Within this field, there is an increasing focus on automated detection algorithms for counting calls and estimating call density (in space and time). For accurate interpretation of such results, it is important to understand and correct biases introduced by ...
Brian S. Miller, Nat Kelly, Meghan G. Aulich, Naysa Balcazar, Susannah Buchan, Franciele R. de Castro, Kym Reeve, Danielle V. Harris   +7 more
wiley   +1 more source

Unraveling the Source Locations of Short‐Period Secondary Microseisms

Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract Primary and secondary microseisms are generated by ocean wave interactions, with the latter occasionally split into short‐ and long‐period bands in some regions. The short‐period secondary microseism (SPSM) sources have traditionally been associated with nearby coastal segments, suggesting a more uniform distribution across shorelines.
Samuel Jorde, Martin Schimmel, Eleonore Stutzmann, Zongbo Xu, Pilar Sánchez‐Pastor, Helena Seivane, Jordi Díaz   +6 more
wiley   +1 more source

Global Observational Comparison of Large‐Scale Traveling Atmospheric and Ionospheric Disturbances During the May 2024 Geomagnetic Storm

Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract During the geomagnetic storm on 10 May 2024, neutral density measurements from 14 Tianmu, Swarm, and GRACE‐FO satellites at ∼510 km altitude, combined with total electron content (TEC) observations, enabled the first global observational comparison of large‐scale traveling atmospheric and ionospheric disturbances (LSTADs/TIDs) via snapshots ...
Xiaolong Wei, Guoying Jiang, Yajun Zhu, Yongping Li, Jiangzhao Ai, Tingwei Han, Huijun Le, Aibin Zhang, Jiyao Xu   +8 more
wiley   +1 more source

GNSS Zenith Wet Delay as a Boundary Layer Diagnostic: Regime‐Dependent Turbulence Signatures From Large Eddy Simulation and Observations

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 12, 28 June 2026.
Abstract Global Navigation Satellite Systems (GNSS) provide continuous measurements of zenith wet delay (ZWD), reflecting column‐integrated atmospheric water vapor. While the slowly varying ZWD is routinely assimilated in numerical weather prediction, the rapid fluctuations on timescales of seconds to minutes that arise from boundary‐layer turbulence ...
Gaël Kermarrec, Tim Schrader, Xavier Calbet, Zhiguo Deng   +3 more
wiley   +1 more source

Facet and Phase Engineering of Single‐Crystalline Transition‐Metal Phosphide Electrocatalysts for Selective Electrochemical Reactions

ChemElectroChem, Volume 13, Issue 12, 17 June 2026.
Facet and phase engineering enables selective electrocatalysis in single‐crystalline transition‐metal phosphides by controlling surface termination, phase identity, and intermediate binding. This review connects noble metal benchmarks, phosphide phase evolution, synthetic growth principles, and electrode translation to guide rational catalyst design ...
Jieun Seo, Seo Hyun Kim, Hyunah Lee, Gyu Rac Lee, Hyeuk Jin Han   +4 more
wiley   +1 more source

Elevation Angle Estimation in a Multipath Environment Using MIMO-OFDM Signals

Remote Sensing
It is challenging to estimate the elevation angle of low-altitude targets due to the multipath effect. Various signal processing techniques have been proposed to mitigate these effects, including the use of multi-frequency signals as opposed to single ...
Yeo-Sun Yoon
doaj   +1 more source

Vertically Moving Target Localization Based on Interference Feature Matching Using a Single Hydrophone

Journal of Marine Science and Engineering
To address the performance degradation of traditional underwater target localization algorithms in high-speed motion scenarios, this paper proposes a vertically moving localization method based on interference feature matching using a single hydrophone ...
Chunpeng Zhao, Guolong Liang, Longhao Qiu, Jinjin Wang, Wenfeng Dong   +4 more
doaj   +1 more source