Received: 30 Mar 2017 – Discussion started: 18 Apr 2017
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.
How to cite. Yuan, Y., Ivchenko, N., Tibert, G., Stanev, M., Hedin, J., and Gumbel, J.: Atmosphere Density Measurements Using GPS Data from Rigid Falling Spheres, Atmos. Meas. Tech. Discuss. [preprint], https://doi.org/10.5194/amt-2017-91, in review, 2017.
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...