| Volumes and Issues Contents of Issue 2 Special Issue |
www.atmos-meas-tech-discuss.net/4/1465/2011/
doi:10.5194/amtd-4-1465-2011
© Author(s) 2011. This work is distributed
under the Creative Commons Attribution 3.0 License.
Identification and localization of layers in the ionosphere using the eikonal and amplitude of radio occultation signals
1Kotelnikov Institute of Radio Engineering and Electronics of the Russian Academy of Sciences, Fryazino, Moscow region, Russia
2RMIT University School of Mathemathical & Geospatial Sciences, GPO Box 2476V Melbourne 3001, Australia
3GeoForschungsZentrum Potsdam (GFZ-Potsdam), Telegrafenberg, 14473 Potsdam, Germany
4Center for Space and Remote Sensing Research, National Central University, Chung-Li, 320, Taiwan
Abstract. Conditions for communication, navigation, and remote sensing in the ionosphere and atmosphere depend strongly on the ionospheric impact on the radio waves propagation. By use of the CHAllenge Minisatellite Payload (CHAMP) radio occultation (RO) data a description of different types of the ionospheric contributions to the RO signals at the altitudes 30–90 km of the RO ray perigee is introduced and compared with results of measurements obtained earlier in the communication link satellite-to-Earth at frequency 1.5415 GHz. An analytical model is introduced for description of the radio waves propagation in a stratified medium consisting of sectors having the spherically symmetric distributions of refractivity. Model presents analytical expressions for the phase path and refractive attenuation of radio waves. Model is applied for analysis of the radio waves propagation effects along a prolonged path including the atmosphere and two parts of the ionosphere. Model explains significant amplitude and phase variations at the altitudes 30–90 km of the RO ray perigee as connected with influence of the inclined ionospheric layers. An innovative eikonal acceleration technique is described and applied for the identification of the inclined ionospheric layers contributions and their location. Possibility to separate the influence of layered structures from contributions of irregularities and turbulence is analyzed.
Discussion Paper (PDF, 1812 KB) Interactive Discussion (Closed, 4 Comments) Final Revised Paper (AMT) Special Issue
Notice on Discussion StatusCitation: Pavelyev, A. G., Zhang, K., Wickert, J., Schmidt, T., Liou, Y.-A., Gubenko, V. N., Pavelyev, A. A., Salimzjanov, R. R., and Kuleshov, Y.: Identification and localization of layers in the ionosphere using the eikonal and amplitude of radio occultation signals, Atmos. Meas. Tech. Discuss., 4, 1465-1492, doi:10.5194/amtd-4-1465-2011, 2011. Bibtex EndNote Reference Manager XML
