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Atmospheric Measurement Techniques An interactive open-access journal of the European Geosciences Union
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Discussion papers
https://doi.org/10.5194/amt-2017-91
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/amt-2017-91
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Submitted as: research article 18 Apr 2017

Submitted as: research article | 18 Apr 2017

Review status
This discussion paper is a preprint. A revision of the manuscript for further review has not been submitted.

Atmosphere Density Measurements Using GPS Data from Rigid Falling Spheres

Yunxia Yuan1, Nickolay Ivchenko1, Gunnar Tibert2, Marin Stanev3, Jonas Hedin3, and Jörg Gumbel3 Yunxia Yuan et al.
  • 1School of Electrical Engineering, Royal Institute of Technology KTH, Stockholm, Sweden
  • 2School of Engineering Sciences, Royal Institute of Technology KTH, Stockholm, Sweden
  • 3Department of Meteorology, Stockholm University, Stockholm, Sweden

Abstract. Atmospheric density profiles in the stratosphere and mesosphere are determined by means of low cost Global Positioning System (GPS) receivers on in situ rigid falling spheres released from a sounding rocket. Values below an altitude of 80 km are obtained. Aerodynamic drag relates atmospheric densities to other variables such as velocities of spheres, drag coefficients,and reference area.The densities are reconstructed by iterative solution. The calculated density is reasonably accurate, with deviation within 10 % with respect to the European Centre for Medium-range Weather Forecasts ( ECMWF) reference value. The atmospheric temperature and wind profiles are obtained as well, and compared to independent data.

Yunxia Yuan et al.
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Status: closed (peer review stopped)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Interactive discussion
Status: closed (peer review stopped)
Status: closed (peer review stopped)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement
Yunxia Yuan et al.
Yunxia Yuan et al.
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Short summary
The paper presents a method to determine altitude profile of atmospheric density, temperature and wind by means of analysing the reconstructed trajectory of a rigid falling sphere released from a sounding rocket. The trajectory reconstruction is achieved by post-flight analysis of GPS raw data gathered in the sphere. A comparison of the results with independent measurements is presented, with good agreement of the falling sphere results with other sources in the stratosphere.
The paper presents a method to determine altitude profile of atmospheric density, temperature...
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