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Article Dans Une Revue Journal of Geophysical Research. Planets Année : 2005

Interior structure of terrestrial planets: Modeling Mars’ mantle andits electromagnetic, geodetic, and seismic properties

Résumé

We present a new procedure to describe the one-dimensional thermodynamical stateand mineralogy of any Earth-like planetary mantle, with Mars as an example. The modelparameters are directly related to expected results from a geophysical network mission, inthis case electromagnetic, geodetic, and seismological processed observationssupplemented with laboratory measurements. We describe the internal structure of theplanet in terms of a one-dimensional model depending on a set of eight parameters: for thecrust, the thickness and the mean density, for the mantle, the bulk volume fraction of iron,the olivine volume fraction, the pressure gradient, and the temperature profile, and for thecore, its mass and radius. Currently, available geophysical and geochemical knowledgeconstrains the range of the parameter values. In the present paper, we develop the forwardproblem and present the governing equations from which synthetic data are computedusing a set of parameter values. Among all Martian models fitting the currently availableknowledge, we select eight candidate models for which we compute synthetic networkscience data sets. The synergy between the three geophysical experiments ofelectromagnetic sounding, geodesy, and seismology is emphasized. The stochasticinversion of the synthetic data sets will be presented in a companion paper.
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Dates et versions

hal-00155776 , version 1 (26-01-2016)

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Olivier Verhoeven, A. Rivoldini, P. Vacher, A. Mocquet, Gael Choblet, et al.. Interior structure of terrestrial planets: Modeling Mars’ mantle andits electromagnetic, geodetic, and seismic properties. Journal of Geophysical Research. Planets, 2005, 110 (E4), pp.E04009. ⟨10.1029/2004JE002271⟩. ⟨hal-00155776⟩
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