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Radio Occultation via Satellites

In: Handbook of Geomathematics

Author

Listed:
  • Christian Blick

    (University of Kaiserslautern, Geomathematics Group)

  • Sarah Eberle

    (University of Kaiserslautern, Geomathematics Group)

Abstract

Radio Occultation is a method which is able to measure atmospheric properties of the Earth as well as of distant planets via satellites. The basic idea of the method is to determine the Doppler shift of a signal emitted by a satellite which passes through the atmosphere of that planet. In this chapter, we want to give an introduction to Radio Occultation (RO) including the physical properties and its modeling aspects. Further on, in order to visualize the data obtained by RO and to give a comparison to other measurements like radiosondes as well as data obtained by other satellites, we introduce combined spherical interpolating and smoothing splines which are particularly suited to handle RO. In doing so, approximations become available to be consistent with the data and/or we are able to smooth out short-lived atmospheric weather phenomena. Exemplary, we use spherical splines to depict certain layers of the atmosphere on a global and local scale, to illustrate the change over time in a certain layer, to compute differences in order to compare 2 years at a certain layer, and to show atmospheric profiles at arbitrary locations on the Earth.

Suggested Citation

  • Christian Blick & Sarah Eberle, 2015. "Radio Occultation via Satellites," Springer Books, in: Willi Freeden & M. Zuhair Nashed & Thomas Sonar (ed.), Handbook of Geomathematics, edition 2, pages 1089-1125, Springer.
    • Handle: RePEc:spr:sprchp:978-3-642-54551-1_100
    DOI: 10.1007/978-3-642-54551-1_100
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