Ferri, F.; Lewis, S. R.; Ball, A. J.; Colombatti, G.; Aboudan, A.; Angrilli, F.; Müller-Wodarg, I.; Hathi, B.; Leese, M. R. and Zarnecki, J. C.
(2008).
Exomars entry and descent science.
In: Third International Workshop on The Mars Atmosphere: Modeling and Observations, 10-13 Nov 2008, Williamsburg, Virginia.
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Abstract
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].
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
in 2005 [1], should allow us to address questions of the martian atmosphere's structure, dynamics and variability.
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