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An Evaluation of GNSS Radio Occultation Technology for Australian Meteorology
Journal of Global Positioning Systems, 2007Earth atmospheric information has been primarily observed by a global network of radiosonde weather observation stations for global weather forecasting and climatologic studies for many years. However, the main disadvantage of this method is that it can not sufficiently capture the complex dynamics of the Earth’s atmosphere since its limited and ...
E. Fu +7 more
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Advancement of GNSS Radio Occultation Retrieval in the Upper Stratosphere
2004Radio occultation (RO) observations promise to become a valuable basis for global climatologies of refractivity, temperature, geopotential height, and humidity in the near future. The continuous RO data stream from the CHAMP and SAC-C missions enables to create such climatologies for the first time.
A. Gobiet, G. Kirchengast
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An assessment of GNSS radio occultation data produced by Spire
Quarterly Journal of the Royal Meteorological Society, 2020AbstractOver recent years there has been increasing interest from commercial companies to produce observations of the atmosphere using GNSS‐RO (Global Navigation Satellite System – Radio Occultation) techniques. One such company, Spire, has achieved this by launching a large number of cubesats that operate in a constellation to observe the atmosphere ...
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(Near-)real-time orbit determination for GNSS radio occultation processing
GPS Solutions, 2012The processing of GPS radio occultation measurements for use in numerical weather predictions requires a precise orbit determination (POD) of the host satellite in near-real-time. Making use of data from the GRAS instrument on Metop-A, the performance of different GPS ephemeris products and processing concepts for near-real-time and real-time POD is ...
Montenbruck, Oliver +4 more
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GNSS radio occultation data for weather forecast and climate research
The GNSS radio occultation (RO) technique uses GNSS (Global Navigation Satellite Systems) signals received aboard low Earth orbiting satellites for atmospheric limb sounding. Refractivity and temperature profiles are derived with high vertical resolution.Schmidt, Torsten +2 more
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Sensitivity of GNSS radio occultation data to horizontal variability in the troposphere
Physics and Chemistry of the Earth, Parts A/B/C, 2004Abstract We addressed the sensitivity of Global Navigation Satellite System (GNSS) radio occultation (RO) measurements to atmospheric horizontal variability based on realistically simulated data. Retrieved parameters from refractivity via pressure, and geopotential height to dry temperature were investigated.
Ulrich Foelsche, Gottfried Kirchengast
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Improvements in Geodetic Surveying Using GNSS Radio Occultation Observations
2017The coordinates of a static Global Navigation Satellite System (GNSS) station placed on the ground are estimated together with the delay suffered by the incoming satellite signals through the atmosphere. The tropospheric delay (TD) is shaped as the product of the zenith total delay (ZTD) times a slant factor or mapping function (MF) depending on the ...
Francesco Vespe +2 more
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Effect of GNSS radio occultation observations on the prediction of the 2021 Henan rainstorm
GPS Solutions, 2023Shuanggen Jin
exaly
Planetary boundary layer height retrieval using GNSS Radio Occultation over Egypt
Egyptian Journal of Remote Sensing and Space Science, 2022Mohamed Zhran
exaly