Results 1 to 10 of about 815 (131)

Algorithm Research Using GNSS-TEC Data to Calibrate TEC Calculated by the IRI-2016 Model over China

open access: yesRemote Sensing, 2021
The International Reference Ionosphere (IRI) is an empirical model widely used to describe ionospheric characteristics. In the previous research, high-precision total ionospheric electron content (TEC) data derived from global navigation satellite system
Wen Zhang, Xingliang Huo, Yunbin Yuan
exaly   +3 more sources

Error Characteristics of GNSS Derived TEC

open access: yesAtmosphere, 2022
The Global Navigation Satellite System (GNSS) allows for the cost-effective estimation of the ionospheric total electron content (TEC). However, research on error characteristics of the derived TEC is scarce, which provides insights into the quality of ...
GUANYI Ma, Jiangtao Fan, Qingtao Wan
exaly   +3 more sources

Comparison of TEC Calculations Based on Trimble, Javad, Leica, and Septentrio GNSS Receiver Data

open access: yesRemote Sensing, 2020
A Global Navigation Satellite System (GNSS) receiver is, to some extent, a “black box” when its data is used for ionospheric studies. Our results based on Javad, Septentrio, Trimble, and Leica GNSS receivers have proven that the accuracy of the slant ...
V V Demyanov   +2 more
exaly   +3 more sources

Analysis of GNSS Data for Earthquake Precursor Studies Using IONOLAB-TEC in the Himalayan Region

open access: yesQuaternary, 2023
Earthquake precursors are the indicators that appear before an earthquake. The release of radon gas, ionospheric disturbances, anomalous animal behavior, and so on are examples of seismic and aseismic events. Ionospheric perturbations can be proved to be
Suresh Kannaujiya, Utkarsh Joshi
exaly   +3 more sources

Ionospheric Assimilation of GNSS TEC into IRI Model Using a Local Ensemble Kalman Filter

open access: yesRemote Sensing, 2022
Ionospheric total electron content (TEC) is important data for ionospheric morphology, and also an important parameter for ionospheric correction in Global Navigation Satellite System (GNSS) precise positioning, navigation, and radio science.
Jun Tang   +2 more
exaly   +3 more sources

Mapping the Ionosphere Over East Asia Based on Ground‐Based GNSS TEC Data in 2010–2023

open access: yesSpace Weather
Using total electron content (TEC) data from multiple ground‐based Global Navigation Satellite System (GNSS) receiver networks from 2010 to 2023, we reconstructed ionospheric TEC maps for East Asia.
Huijun Le, Libo Liu, Yiding Chen
exaly   +2 more sources

IONOSPHERIC TEMPORAL-SPATIAL CORRELATION ANALYSIS USING GNSS NETWORKS OVER CHINA [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
The Global Navigation Satellite System (GNSS) is well recognized as a valuable tool for studying ionospheric variation, providing a means to measure variations in the Total Electron Content (TEC) of the ionosphere.
Y. Xiang, Z. Li, N. Wang, L. Pei, W. Yu
doaj   +1 more source

Determining regional ionospheric model and comparing with global models [PDF]

open access: yesGeodetski Vestnik, 2017
GNSS (Global Navigation Satellite System) signals pass through various layers of the atmosphere until reaching the receiver on the Earth. The ionosphere, one of these layers, is about 70 km to 1000 km above the Earth surface and constantly changes with ...
Fuat Basciftci   +3 more
doaj   +1 more source

Ionospheric Behavior during the 10 June 2021 Annular Solar Eclipse and Its Impact on GNSS Precise Point Positioning

open access: yesRemote Sensing, 2022
The main effects of the 10 June 2021 annular solar eclipse on GNSS position estimation accuracy are presented. The analysis is based on TEC measurements made by 2337 GNSS stations around the world.
Juan Carlos Valdés-Abreu   +4 more
doaj   +1 more source

Seven days in Chile: Impact of the 2011 Puyehue-Cordon Caulle volcanic eruption on GPS ionospheric delay [PDF]

open access: yesE3S Web of Conferences, 2019
Satellite navigation is a global utility and an essential component of national infrastructure. Disruptions of GNSS PNT services may be considered a threat to society and civilisation in general.
Jukić Oliver   +3 more
doaj   +1 more source

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