Results 21 to 30 of about 149 (125)

Results of GPS reprocessing campaign (1996-2011) provided by Geodetic observatory Pecný

Geoinformatics FCE CTU, 2012
The paper presents the GOP first reprocessing results, which officially contributed to the EPN-repro1 project. It also describes the 15-year GOP cumulative solution providing station coordinates, velocities and their discontinuities over the period of ...
Jan Douša, Pavel Václavovic
doaj   +1 more source

Establishment of Karadeniz Technical University Permanent GNSS Station as Reactivated of TRAB IGS Station

Geodesy and Cartography, 2017
In recent years, Global Navigation Satellite Systems (GNSS) have gained great importance in terms of the benefi ts it provides such as precise geodetic point positioning, determining crustal deformations, navigation, vehicle monitoring systems and ...
Kazancı Selma Zengin, Kayıkçı Emine Tanır   +1 more
doaj   +1 more source

Calibration and Fusion of GOLD‐Inferred TEC Data With Ground‐Based TEC

Space Weather, Volume 24, Issue 6, June 2026.
Abstract Ground‐based Global Navigation Satellite System (GNSS) receivers provide primary total electron content (TEC) measurements used to monitor ionospheric variability, yet their sparse distribution over oceanic and equatorial regions limits global coverage and model accuracy.
Maria Smirnova, Shasha Zou, Grace Kwon, Hang Liu, Yang Chen   +4 more
wiley   +1 more source

GRENet: GNSS‐Enhanced Radar Extrapolation Network for Precipitation Nowcasting

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract Accurate precipitation nowcasting is one of the most challenging tasks in atmospheric sciences. The current methods of nowcasting primarily rely on inferring precipitation from radar reflectivity, which inevitably leads to uncertainties in forecasts due to the limitations of single radar data in capturing the detailed initial conditions of ...
Cuixian Lu, Quanfei Wang, Yuxin Zheng, Xiaohong Zhang, Jiafeng Li, Xuanzhen Zhang, Galina Dick, Jonathan Jones   +7 more
wiley   +1 more source

TEC variations over the Mediterranean during the seismic activity period of the last quarter of 2005 in the area of Greece [PDF]

Natural Hazards and Earth System Sciences, 2008
In this paper the Total Electron Content (TEC) data of eight Global Positioning System (GPS) stations of the EUREF network (AUT1, Thessaloniki, TUC2, Crete in Greece, MATE, Matera, LAMP, Lampedusa in Italy, GAIA, in Portugal, RABT, Rabat, EVPA, Evpatoria
M. E. Contadakis, D. N. Arabelos, G. Asteriadis, S. D. Spatalas, C. Pikridas   +4 more
doaj  

Drivers of Mid‐Latitude Quiet‐Time Longitude Variations in Ionospheric Density

Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.
Abstract The aim of this study is to provide an observational benchmark of mid‐latitude quiet‐time variability in winds, O/N2, and TEC across longitude and local time to provide a foundation for future model–data comparison studies. The quiet‐time ionospheric structure is not uniform but rather exhibits pronounced longitudinal and local‐time ...
K. R. Greer, L. P. Goncharenko, V. L. Harvey, C. Cullens   +3 more
wiley   +1 more source

Ionospheric Response to the 8 April 2024 Total Solar Eclipse: Plasma Depletion and Eclipse‐Driven MsTIDs

Space Weather, Volume 24, Issue 4, April 2026.
Abstract The total solar eclipse on 8 April 2024 provided a unique opportunity to investigate the three‐dimensional (3‐D) ionospheric response under enhanced solar activity over North America. In this study, we processed high‐density GNSS observations from ∼1,700 stations to derive vertical total electron content and applied a multi‐term sinusoidal ...
Wenbin Liang, Xiyan Sun, Yuanfa Ji, Xiaodong Ren   +3 more
wiley   +1 more source

Near real-time ionospheric monitoring over Europe at the Royal Observatory of Belgium using GNSS data

Journal of Space Weather and Space Climate, 2014
Various scientific applications and services increasingly demand real-time information on the effects of space weather on Earth’s atmosphere. In this frame, the Royal Observatory of Belgium (ROB) takes advantage of the dense EUREF Permanent GNSS Network (
Bergeot Nicolas, Chevalier Jean-Marie, Bruyninx Carine, Pottiaux Eric, Aerts Wim, Baire Quentin, Legrand Juliette, Defraigne Pascale, Huang Wei   +8 more
doaj   +1 more source

The Real‐Time Advanced Ionospheric Data Assimilation (AIDA) Model

Space Weather, Volume 24, Issue 2, February 2026.
Abstract The Advanced Ionospheric Data Assimilation (AIDA) is a real‐time data assimilation model of global 3D ionosphere and plasmasphere electron density. Changes in the local space environment can occur on very short timescales, particularly during disturbed geomagnetic conditions.
Benjamin Reid, David R. Themens, Sean Elvidge, Mohammad Afraz Ahmed, Warrick Ball, M. Mainul Hoque   +5 more
wiley   +1 more source

Determination and evaluation of the Estonian fitted geoid model EST-GEOID 2003 / Estijos geoido modelio Est-Geoid 2003 sudarymas ir vertinimas / Создание и оценка модели геоида Эстонии Est-Geoid2003

Geodesy and Cartography, 2011
This paper focuses on issues related to the calculation of a high-precision fitted geoid model on Estonian territory. Model Est-Geoid2003 have been used in Estonia several years in geodesy and other applications.
Harli Jürgenson, Kristina Türk, Jüri Randjärv   +2 more
doaj   +1 more source