Results 51 to 60 of about 817 (210)

Sequential Generation of Multi-GNSS Multi-Frequency PPP-RTK Products and Their Performance Using the EUREF Permanent GNSS Network

open access: yesRemote Sensing, 2023
In the classic Precise Point Positioning (PPP) approach, observations of Global Navigation Satellite Systems (GNSS) are processed at the network level to generate satellite clocks and positions.
Hans Daniel Platz
doaj   +1 more source

Exploring Two‐Dimensional and Three‐Dimensional Propagation of Large‐Scale Traveling Ionospheric Disturbances During the May 2024 Geomagnetic Storm Main Phase

open access: yesSpace Weather, Volume 23, Issue 10, October 2025.
Abstract During the main phase of the May 2024 super geomagnetic storm, we investigated large‐scale traveling ionospheric disturbances (LSTID) using data from densely distributed global GNSS receivers. From both two‐dimensional and three‐dimensional (3D) perspectives, we analyzed LSTID propagation characteristics over North America, European, and ...
Ting Zhang   +4 more
wiley   +1 more source

Spectral analysis of multi-year GNSS code multipath time-series

open access: yesBudownictwo i Architektura, 2020
In the presented study multi-year time series of changes in the L1 pseudo-range multipath are analysed. Data from 8 stations of the EUREF Permanent Network (EPN) were used in the study.
Jacek Kudrys
doaj   +1 more source

Automatic Detection of Large‐Scale Traveling Ionospheric Disturbances Using GNSS Data and Image Processing Techniques

open access: yesSpace Weather, Volume 23, Issue 9, September 2025.
Abstract Large‐scale traveling ionospheric disturbances (LSTIDs) are wave‐like structures propagating through the ionosphere from auroral to lower latitudes, affecting radar‐based technologies and satellite navigation. Due to their disruptive effects, timely detection is crucial. This work presents an autonomous detection technique based on travel‐time
Marco Guerra   +8 more
wiley   +1 more source

Evaluating the accuracy of GNSS measurements in RTK mode using commercial and non-commercial correction network

open access: yesТехнічна інженерія
The article presents a comparative analysis of the accuracy of GNSS (Global Navigation Satellite System) measurements in RTK (Real-Time Kinematic) mode using correction services from GeoNet, 1Yocto, EUREF (European Reference Frame) and EGNOS (European ...
D.P. Pobihailo   +2 more
doaj   +1 more source

Verification of the Polish Geodetic Reference Frame by Means of a New Solution Based on Permanent GNSS Data from the Years 2011-2014

open access: yesReports on Geodesy and Geoinformatics, 2016
The new solution for the Polish geodetic primary GNSS network was created to verify the currently used reference frame (PL-ETRF2000). The new solution is based on more GNSS data (more daily observation sessions included, a longer data timespan, GLONASS ...
Liwosz T., Ryczywolski M.
doaj   +1 more source

Systematic map of the literature on carbon lock-in induced by long-lived capital

open access: yesEnvironmental Research Letters, 2021
Long-lived capital-stocks (LLCS) such as infrastructure and buildings have significant and long-lasting implications for greenhouse gas emissions. They contribute to carbon lock-in and may hinder a rapid decarbonization of energy systems. Here we provide
Vivien Fisch-Romito   +4 more
doaj   +1 more source

Altitude Variations in Ionospheric Responses and Prolonged TEC Recovery During the High Latitude Solar Eclipse of 10 June 2021

open access: yesJournal of Geophysical Research: Space Physics, Volume 130, Issue 8, August 2025.
Abstract A solar eclipse leads to a local decrease in ionospheric density that generally follows the solar obscuration function, whereas the density recovery phase is often characteristically prolonged after the eclipse ended. By using simultaneous measurements of the European Incoherent Scatter Scientific Association incoherent radar and GNSS during ...
Hiroatsu Sato   +5 more
wiley   +1 more source

APPLICATION OF SCIENTIFIC SOFTWARE GAMIT/GLOBK FOR GEODYNAMICS IN BOSNIA AND HERZEGOVINA [PDF]

open access: yesGeodetski Glasnik, 2019
Global Navigation Satellite Systems (GNSS) are used for different purposes in geodesy, like engineering geodesy, land management, real estate cadastre, land surveying, etc.
Jasmin Ćatić, Dževad Krdžalić
doaj   +1 more source

The Santorini 2024–2025 Volcano‐Tectonic Sequence: Constraining the Initial Phase of the Intra‐Caldera Unrest

open access: yesGeophysical Research Letters, Volume 52, Issue 13, 16 July 2025.
Abstract After less than 14 years from the previous 2011–2012 unrest, the Santorini volcano entered a new unrest phase, involving intra‐caldera deformation since July 2024 and microseismicity mainly after mid‐September 2024. We examine the first phase of this unrest, identified by GNSS and Synthetic Aperture Radar Interferometry data as an almost ...
C. Papazachos   +9 more
wiley   +1 more source

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