Schumann resonances as indicators for lightning on Titan

Details Schumann resonances as indicators for lightning on Titan Schumann resonances as indicators for lightning on Titan

Nov 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002esasp.518..341b&link_type=abstract

In: Proceedings of the First European Workshop on Exo-Astrobiology, 16 - 19 September 2002, Graz, Austria. Ed.: Huguette Lacoste

Biology

3

Titan: Resonances, Model Atmospheres

Scientific paper

We calculate the smallest eigenmodes of the electromagnetic wave propagation in the cavity bounded by Titan's surface and the ionosphere, the so-called Schumann resonances. For the analytical treatment we use a model with simplified geometry and total-reflecting boundaries. For more realistic simulations we use height profiles of conductivity and collision frequency from a model atmosphere. The Huygens Atmospheric Structure Instrument (HASI) on the Huygens probe will investigate the atmospheric structure of Titan below 170 km. The HASI/PWA (Permittivity, Wave and Altimetry) instrument will measure electrical parameters, like electron- and ion-electron conductivities. Additionally, it will investigate emissions from DC up to 10 kHz from natural wave phenomena. Lightning, if it exists and occurs frequently, should be detected by the occurrence of Schumann resonance.

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