Results 11 to 20 of about 865 (172)
INDONESIAN TSUNAMI EARLY WARNING SYSTEM AUGMENTATION USING GNSS-TEC [PDF]
Science of Tsunami Hazards, 2020 The Indonesian tsunami early warning system (INATEWS) has been developed and operated after the tsunami struck Aceh in December 2004. The INATEWS is based on a relationship model of earthquake parameters and tsunami potential.
Buldan Muslim +2 more
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Editorial for the Special Issue “GNSS, Space Weather and TEC Special Features”
Remote Sensing, 2023 For high-quality scientific communication in the field of technical and natural sciences, it is of utmost importance to ensure clarity of the text, logical mathematical argumentation, and the possibility of verifying the obtained theoretical results using appropriate experiments [...]
Serdjo Kos +2 more
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Global TEC maps based on GNSS data: 1. Empirical background TEC model [PDF]
Journal of Geophysical Research: Space Physics, 2013 AbstractA global background total electron content (TEC) model is built by using the Center for Orbit Determination of Europe (CODE) TEC data for full 13 years, 1999–2011. It describes the climatological behavior of the ionosphere under both its primary external driver, i.e., the direct photo‐ionization by incident solar radiation, and regular wave ...
P. Mukhtarov +3 more
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A Regional Model of Topside Ionospheric Effective Scale Heights Derived From Ionosonde and GNSS TEC
Space Weather, 2023 Ionospheric scale height is critical for the structure of electron density profile in the ionosphere. However, mostly, the effective scale heights (fitted with mathematical functions) instead of topside ionospheric scale heights were used to reconstruct ...
Chunhua Jiang +6 more
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Sensors, 2021 There are a large number of excellent research cases in Global Navigation Satellite System (GNSS) positioning and disaster prediction in Japan region, where the simulation and prediction of total electron content (TEC) is a powerful research method.
Tianyang Hu, Yibin Yao, Jian Kong
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GNSS signal phase, TEC, and phase unwrapping errors
NAVIGATION, 2020 Precise measurements of signal phase are essential for Global Navigation Satellite System (GNSS) position estimates. However, propagation through the earth's ionosphere imposes frequency-dependent phase errors. The frequency dependence is exploited to correct phase errors proportional to total electron content (TEC) divided by frequency.
Charles Rino +4 more
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Remote Sensing, 2018 The Global Navigation Satellite System (GNSS) observations with global coverage and high temporal and spatial resolution, provide abundant and high-quality Earth-ionosphere observations.
Yang Liu +3 more
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Some statistics of Ionospheric total electron content variations at mid-latitude zones of Mongolia
Proceedings of the Mongolian Academy of Sciences, 2021 This work is focused on the correlation of ionosphere total electron content (TEC) with solar and geomagnetic activities of the space weather at mid-latitude zone.
Baatarkhuu Dagva +2 more
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Remote Sensing, 2023 The equatorial plasma bubbles (EPBs) are depleted plasma density regions in the ionosphere occurring during the post-sunset hours, associated with the signal fading and scintillation signatures in the trans-ionospheric radio signals.
Ram Kumar Vankadara +4 more
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Sensors, 2020 Global navigation satellite systems (GNSS) allow estimating total electron content (TEC). However, it is still a problem to calculate absolute ionosphere parameters from GNSS data: negative TEC values could appear, and most of existing algorithms does ...
Yury Yasyukevich +2 more
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