Venusian Earthquakes Detection by Ionospheric Sounding

Details Venusian Earthquakes Detection by Ionospheric Sounding Venusian Earthquakes Detection by Ionospheric Sounding

Dec 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010agufm.u41a..03o&link_type=abstract

American Geophysical Union, Fall Meeting 2010, abstract #U41A-03

Computer Science

Sound

[2487] Ionosphere / Wave Propagation, [3384] Atmospheric Processes / Acoustic-Gravity Waves, [5464] Planetary Sciences: Solid Surface Planets / Remote Sensing, [7200] Seismology

Scientific paper

Thanks to technological advances over the past fifteen years the ionosphere is now a new medium for seismological investigation. As a consequence of density structure in Venus atmosphere, the coupling between solid and fluid part of Venus induce a more significant atmospheric responce to quakes and volcanic eruptions (Lognonné & Johnson, 2007). Equivalent perturbation induced by internal activity has been detected on Earth through their subsequent ionospheric signature imaged by ionospheric tools (Doppler sounding or GPS) (Lognonné et al., 2006, Occhipinti et al., 2010). The strong solid/atmosphere coupling on Venus (Garcia et al., 2005, 2009), the thin ionospheric layer as well as absence of magnetic field present optimal circumstances for a better detection of these signals on Venus than on Earth. Consequently, ionospheric Doppler sounders on-board orbiters or balloons will provide informations on the infrasonic response of the atmosphere/ionosphere to quakes, and will help to constrain the interior structure of Venus through the solid/atmosphere coupling. With this paper we explore the future mission possibility and constrains.

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