Results 41 to 50 of about 6,028 (158)
Study of Total Electron Content-TEC and electron density profile during geomagnetic storms
, 2018 Total Electron Content (TEC) and electron density are the basic parameters, which determine the major properties of the Ionosphere. Detail study of the ionospheric TEC and electron density variations has been carried out during geomagnetic storms, with longitude and latitude, for four different locations: (24°W-14°W, 25°S-10°S); (53°W- 46°W, 04°N-14°N);
Bhattarai, Niraj +2 more
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Solar-Terrestrial Physics, 2017 We present a new technique for estimating the absolute vertical and slant total electron content (TEC). The estimation is based on single-frequency joint phase and pseudorange GPS/GLONASS measurements at single stations.
Yasyukevich Yu.V. +2 more
doaj +1 more source
Mapping the East African Ionosphere Using Ground-based GPS TEC Measurements [PDF]
Journal of Astronomy and Space Sciences, 2016 The East African ionosphere (3°S–18°N, 32°E–50°E) was mapped using Total Electron Content (TEC) measurements from ground-based GPS receivers situated at Asmara, Mekelle, Bahir Dar, Robe, Arbaminch, and Nairobi.
Chalachew Kindie Mengist +3 more
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Development and Evaluation of Near‐Real Time TEC and Ancillary Products for SANSA Space Weather
Space Weather, 2022 In this paper, the second version of SANSA's Total Electron Content (TEC) maps is presented with its associated methodology and assumptions. The method is based on Ma and Maruyama (2003, https://doi.org/10.5194/angeo-21-2083-2003) determination of ...
Tshimangadzo M. Matamba +1 more
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Automatic Data Downloading Program (DDP) in Determining Regional Ionosphere Model
Journal of New Results in Science, 2018 GNSS (Global Navigation Satellite System) signals passthrough various layers of the atmosphere until they reach the receiver on theEarth. One of these layers is the Ionosphere. Ionosphere may be defined as theatmospheric layer that consists of the gasses
Cevat İnal +3 more
doaj
Revisit the calibration errors on experimental slant total electron content (TEC) determined with GPS [PDF]
GPS Solutions, 2018 This is a pre-print of an article published in GPS Solutions. The final authenticated version is available online at: https://doi.org/10.1007/s10291-018-0753-7. The study is funded by National Key Research and Development Program of China (2016YFB0501902), National Natural Science Foundation of China (41574025, 41574013, 41731069), Spanish Ministry of ...
Wenfeng Nie +7 more
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AtmosphereOn 1 December 2023, a strong geomagnetic storm was triggered by an interplanetary shock caused by a coronal mass ejection (CME). This study used data from 193 Global Navigation Satellite System (GNSS) observation stations in China to study the three ...
Yifei Yang +6 more
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Evaluation of geomagnetic storm effects on the GPS derived Total Electron Content (TEC)
Journal of Physics: Conference Series, 2015 The geomagnetic storm represents the most outstanding example of solar wind- magnetospheric interaction, which causes global disturbances in the geomagnetic field as well as triggers ionospheric disturbances. We study the behaviour of ionospheric Total Electron Content (TEC) during the geomagnetic storms.
P K Purohit +10 more
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Space WeatherIn this study, the error of total electron content (TEC) derived from the global ionospheric map (GIM) (GIM‐TEC) during equatorial plasma bubble (EPB) event is investigated for the first time.
Long Tang, Fenkai Zhang, Wu Chen
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Anomalous variations in ionospheric TEC prior to the 2011 Japan Ms9. 0 earthquake
Geodesy and Geodynamics, 2011 The ionospheric total-electron-content (TEC) data provided by the International GNSS Service (IGS) network and the VTEC data from the GPS reference stations of Crustal Movement Observational Network of China(CMONC) were processed and statistically ...
Zhu Fuying, Wu Yun
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