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COSMIC-2 Status and GNSS Radio Occultation Results
2020<p>We present status and atmospheric retrieval results for the FORMOSAT-7/COSMIC-2 (COSMIC-2) mission. COSMIC-2 mission jointly managed by NOAA and Taiwan's National Space Organization (NSPO) and consists of six satellites launched on June 25, 2019 into a 24-degree inclination orbit.
Jan-Peter Weiss, Wei Xia-Serafino
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On constellation design of multi-GNSS radio occultation mission
Acta Astronautica, 2013Abstract The FORMOSAT-3/COSMIC mission which is a joint Taiwan-US mission for meteorological, climatological, ionospheric, and geodetic studies has successfully provided a significant amount of GPS radio occultation (RO) data for better modeling of climate model, forecasting of weather, and monitoring of ionosphere.
Jyh-Ching Juang +2 more
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An Overview on GNSS Radio Occultation
2010An overview on GNSS Radio Occultation (GNSS-RO) technique and its application in geodesy and atmospheric research was presented at the Institute of Astronomical and Physical Geodesy (APMG), University of Bonn in Germany, on 13th July 2010.
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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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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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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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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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