Results 71 to 80 of about 120,602 (222)

A Spatial Sliding Window-Based Grid Model for Direct Retrieval GNSS Precipitable Water Vapor from Zenith Wet Delay

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
High-spatiotemporal-resolution precipitable water vapor (PWV) derived from global navigation satellite systems (GNSS) is a critical parameter for meteorological monitoring and numerical weather prediction.
Yinghao Zhao, Chao Chen, Wenyuan Zhang, Wei Zhou, Chao Hu, Xingwang Zhao   +5 more
doaj   +1 more source

Spatial variation of precipitable water vapor derived from GNSS CORS in Thailand

Geodesy and Geodynamics, 2019
This research aims to study a distance variation of Precipitable Water Vapor (PWV) between Continuously Operating Reference Stations (CORS) in Thailand using a Precise Point Positioning (PPP) technique. Nowadays, Global Navigation Satellite System (GNSS)
Paramee Meunram, Chalermchon Satirapod
doaj   +1 more source

A Data‐Driven Review of Geoscience Research Evolution Using SciBERT‐Based Topic and Network Analysis

Geoscience Data Journal, Volume 13, Issue 4, October 2026.
This review synthesises the evolution of global geoscience research from 2004 to 2023 using large‐scale bibliometric evidence. By combining keyword co‐occurrence network analysis with SciBERT‐based topic modelling, it identifies major paradigm transitions from geology‐centred research to climate‐focused studies and recent data‐ and AI‐driven ...
Sooyeon Han, Ju‐seop Kim
wiley   +1 more source

Dataset of Coastline Positions for Sandy Beaches of England and Wales Derived Using Remote Sensing

Geoscience Data Journal, Volume 13, Issue 4, October 2026.
Two decades (1999–2020) of annual coastline position dataset were generated using COASTSAT toolkit for sandy beaches of England and Wales. The dataset consists of annual coastline position coordinates in the format of GeoJSON and Tabular files. ABSTRACT This article presents a dataset of coastline positions, comprising annual sandy coastline detections
Pavitra Kumar, Nicoletta Leonardi
wiley   +1 more source

Blind Adaptive Beamformer Based on Orthogonal Projections for GNSS [PDF]

, 2012
The quality of the ranging data provided by a global navigation satellite systems (GNSS) receiver largely depends on the synchronization error, that is, on the accuracy of the propagation time-delay estimation of the line-of-sight (LOS) signal.
Noll, Tobias G., Meurer, Michael, Antreich, Felix, Sgammini, Matteo, Kurz, Lothar   +4 more
core  

A Refined Regional Model for Estimating Pressure, Temperature, and Water Vapor Pressure for Geodetic Applications in China

Remote Sensing, 2020
Pressure, temperature, and water vapor pressure are basic meteorological parameters that are frequently required in Global Navigation Satellite System (GNSS) positioning/navigation and GNSS meteorology.
Junyu Li, Bao Zhang, Yibin Yao, Lilong Liu, Zhangyu Sun, Xiao Yan   +5 more
doaj   +1 more source

A Random Forest–Based Global Gridded Model for Vertical Correction of Precipitable Water Vapor Accounting for Nonlinear Vertical Variation

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 5, October 2026.
Abstract Vertical correction of precipitable water vapor (PWV) is a critical step in PWV fusion and atmospheric research. To address the limited accuracy of traditional global‐scale PWV vertical correction models that do not explicitly account for nonlinear vertical variations, we developed RF‐PWV, a global 1° × 1° PWV vertical correction model based ...
Junyu Li, Mingxun Zhang, Liying Cao, Lilong Liu, Bao Zhang, Yibin Yao, Liangke Huang   +6 more
wiley   +1 more source

On Backward Compatibility in GNSS Signal Design [PDF]

, 2011
This work further develops tools and methodologies for systematic GNSS signal design. Inter and intra system multiple access interference (MAI), synchronization accuracy, time-delay estimation robustness, and backward compatibility with respect to ...
Antreich, Felix, Issler, Jean-Luc, Nossek, Josef A., Floch, Jean-Jacques   +3 more
core  

Improving Interpolating Accuracy of Weighted Mean Temperature by Using a Novel Lapse Rate Model in Compact VMF1 Product

Earth and Space Science
In GNSS (Global Navigation Satellite Systems) meteorology, the accuracy of precipitable water vapor (PWV) retrieved from the tropospheric delay of GNSS signals is affected by the conversion factor.
Peng Sun, Kefei Zhang, Dantong Zhu, Moufeng Wan, Ren Wang, Suqin Wu   +5 more
doaj   +1 more source

Along‐Strike Coupling Heterogeneity in Cascadia's Slow‐Slip Zone Constrained by GNSS and Reduced‐Order Rate‐And‐State Friction Modeling

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Slow slip events (SSEs) in the Cascadia subduction zone exhibit along‐strike segmentation, where the central segment has longer recurrence intervals but smaller moments. We quantify the controls on this variability by combining geodetic inter‐SSE coupling inversion with Bayesian inference of a quasi‐dynamic rate‐and‐state friction SSE‐cycle ...
Yohai Magen, Alice‐Agnes Gabriel, Dave A. May   +2 more
wiley   +1 more source