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Article
Open AccessIntroduction of TROPS ionospheric TEC products for FORMOSAT-7/COSMIC-2 mission
Six low Earth orbit (LEO) satellites were launched on June 25th, 2019 for a radio occultation (RO) mission for the FORMOSAT-7/COSMIC-2 (F7/C2) program. The GPS and GLONASS RO signals received by these F7/C2 sa...
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Article
Open AccessThe observations of localize ionospheric scintillation structure by FORMOSAT-7/COSMIC-2 Tri-band Beacon network
The preliminary results of FORMOSAT-7/COSMIC-2 beacon data are presented in this paper, and the localized scintillation structure where the radio signals are affected by irregularities is recognized. Irregular...
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Article
Determination of near real-time GNSS satellite clocks for the FORMOSAT-7/COSMIC-2 satellite mission
In this study, we determine the near real-time (NRT) clocks of the Global Positioning System (GPS) and Globalnaya Navigatsionnaya Sputnikovaya Sistema (GLONASS) satellites in the Taiwan RO Process System (TROP...
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Vertical Gradients of Refractivity in the Mesosphere and Atmosphere Retrieved from GPS/MET and CHAMP Radio Occultation Data
Fine structures in the vertical gradient of the electron density have been retrieved by means of analysis of the amplitude of radio occultation (RO) data in sporadic E-layers (heights interval 85–110 km). Maxi...
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Article
GPS radio holography as a tool for remote sensing of the atmosphere, mesosphere, and terrestrial surface from space
GPS radio occultation (RO) signals are highly coherent and precise, and thus sufficient for holographic investigation of the atmosphere, ionosphere, and the Earth's surface from space. In principle, three-dim...
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Article
GPS observations of PW during the passage of a typhoon
The Global Positioning System (GPS) is used to provide hourly measurements of precipitable water (PW) in Taiwan during the passage of tropical cyclones. Typhoon Zeb, which caused serious damage in the Philippi...
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Article
Precipitable water observed by ground-based GPS receivers and microwave radiometry
The sensing of absolute precipitable water vapor (PW) by the Global Positioning System (GPS) and a Water Vapor Radiometer (WVR) is presented. The GPS approach requires a priori knowledge of the relationship betwe...
