Results 91 to 100 of about 47,957 (238)

Distributed Timing and Localization (DiGiTaL) [PDF]

The Distributed Timing and Localization (DiGiTaL) system provides nano satellite formations with unprecedented,centimeter-level navigation accuracy in real time and nanosecond-level time synchronization.
Baker, Christopher, D'Amico, Simone, Hunter, Roger C.   +2 more
core   +1 more source

Temporal Variations in Seismic Ambient Noise Identify Seasonal Changes in Basal Conditions at Sermeq Kujalleq in Kangia, Greenland

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract Subglacial processes are key to glacier dynamics but remain poorly constrained due to limited in situ observations. We use continuous seismic and Global Navigation Satellite System (GNSS) measurements to investigate summer basal conditions at Sermeq Kujalleq in Kangia (SKK; Jakobshavn Isbræ), Kalaallit Nunaat (Greenland).
Janneke van Ginkel, Adrien Wehrlé, Ana Nap, Fabian Walter, Andrea Kneib‐Walter, Hugo Rousseau, Martin P. Lüthi   +6 more
wiley   +1 more source

Overview of the development of satellite navigation blanket interference monitoring

Frontiers in Physics
Satellite navigation interference monitoring is an important means to effectively evaluate interference and ensure the normal operation of global navigation satellite system (GNSS).
Yinhui He, Yinhui He, Baiyu Li, Baiyu Li, Jinping Chen, Zhi Wang, Wei Xiao, Wei Xiao, Zukun Lu, Zukun Lu   +9 more
doaj   +1 more source

Unconstrained GNSS Water Vapor Tomography With Real Data and LEO Augmentation

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract The availability of four complete GNSS constellations (GPS, GLONASS, BeiDou and Galileo) offers, for the first time, the possibility of performing water vapor tomographic inversions that do not rely on external data. A tomographic model that includes no external constraints and requires no first guess and no virtual observations is described ...
P. M. A. Miranda, G. A. Hajj, J. Teixeira, P. Mateus   +3 more
wiley   +1 more source

A Multi-Global Navigation Satellite System (GNSS) Time Transfer Method with Federated Kalman Filter (FKF). [PDF]

Sensors (Basel), 2023
Liang K, Hao S, Yang Z, Wang J.
europepmc   +1 more source

Attributing Upper‐Tropospheric Warm Biases in CMIP6 Models to Ice Cloud‐Radiation Interaction Deficiencies Over Tropical Oceans

Geophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract We assess the impact of hydrometeor radiative effects on tropical and subtropical Pacific air temperature anomalies (TAA) using Coupled Model Intercomparison Project Phase 6 (CMIP6) model simulations and satellite data. CMIP6 models are grouped by their treatment of frozen hydrometeors: SON2 (explicit cloud and falling ice), SON1 (simplified),
J.‐L. F. Li, Wei‐Liang Lee, Kuan‐Man Xu, J. H. Jiang, Yi‐Hui Wang, Yu‐Cian Tsai, S‐P. Ho, Qing Yue, Graeme Stephens, Jia‐Yuh Yu, Huiwen Chuang   +10 more
wiley   +1 more source

Implementation and performance evaluation of an inertial navigation system/global navigation satellite system real‐time kinematic Ntrip navigation system aided by a robot operating system‐based emulated odometer for high‐accuracy land vehicle navigation in urban environments

Engineering Reports, 2020
Advanced land‐vehicle navigation commonly uses integrated systems to counteract global navigation satellite system (GNSS) solution degradation. This occurs mainly in urban environments due to blockage of the satellite signals.
Jorge P. M. Galdames, Carlos E. Milhor, Daniel V. Magalhães, Glauco A. P. Caurin, Marcelo Becker   +4 more
doaj   +1 more source

Interseismic, Coseismic, and Early Postseismic Slip Associated With the 2025 Mw 8.8 Kamchatka Earthquake

Geophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract Unraveling the surface deformation and fault kinematics during the seismic cycle is crucial for understanding earthquake physics. Herein, we use geodetic and seismic observations to quantify the interseismic coupling, coseismic rupture, and postseismic afterslip associated with the 2025 Mw 8.8 Kamchatka earthquake.
Yang Xiao, Jingqi Wang, Yijun Zhang, Wenting Zhang, Jiangcun Zhou, Heping Sun, Yabo Zhao, Anas Osman, Rumeng Guo   +8 more
wiley   +1 more source

Wood restoration results in rapid conversion of a degraded plane‐bed channel, Little River, Washington

Earth Surface Processes and Landforms, Volume 51, Issue 5, May 2026.
The authors document that wood restoration can rapidly and positively affect a number of geomorphic variables to improve habitat conditions for Pacific salmon. Abstract The loss of instream wood can create a legacy of channel incision that is detrimental to habitat formation.
Aaron Lee, Olivia Vito, Michael McHenry, Tim Abbe, George Pess, Martin Liermann, mc Kenzi Taylor   +6 more
wiley   +1 more source

Multi-Global Navigation Satellite System for Earth Observation: Recent Developments and New Progress

Remote Sensing
The Global Navigation Satellite System (GNSS) has made important progress in Earth observation and applications. With the successful design of the BeiDou Navigation Satellite System (BDS), four global navigation satellite systems are available worldwide,
Shuanggen Jin, Xuyang Meng, Gino Dardanelli, Yunlong Zhu   +3 more
doaj   +1 more source