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Exomars entry and descent science

By F. Ferri, S. R. Lewis, A. J. Ball, G. Colombatti, A. Aboudan, F. Angrilli, I. Müller-Wodarg, B. Hathi, M. R. Leese and J. C. Zarnecki


The entry, descent and landing of ExoMars offer a rare (once-per-mission) opportunity to perform in situ investigation of the martian environment over a wide altitude range. We present an initial assessment of the atmospheric science that can be performed using sensors of the Entry, Descent and Landing System (EDLS), over and above the expected engineering information. This is intended to help fulfill the concept of an Atmospheric Parameters Package (APP), as mentioned in the ExoMars draft Science Management Plan [ESA, 2005].\ud Mars' atmosphere is highly variable in time and space, due to phenomena including inertio-gravity waves, thermal tide effects, dust, solar wind conditions, and diurnal, seasonal and topographic effects. Atmospheric profile measurements, drawing on heritage from the Huygens Atmospheric Structure Instrument (HASI), which encountered Titan's atmosphere\ud in 2005 [1], should allow us to address questions of the martian atmosphere's structure, dynamics and variability

Year: 2008
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Provided by: Open Research Online

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