document title / titre du document TRP W ORK PLAN ... - emits - ESA

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TRP Work Plan 2005-2007 Description of Activities TEC-SB/7935/dc 12/Feb/09 Application/Mission: exploration missions e.g. MSR Contract Duration: 24 months SW Clause : Operational SW Dossier0 Ref.: T-8070 Consistency with Harmonisation Roadmap and Conclusions: TRP Reference: 04/K15 Title: Mars climate database and physical models In order to compute accurately the incoming solar flux on inclined solar panels, a Monte-Carlo radiative transfer code for the martian atmosphere has been developed by LMD. Additional work is now needed to complete the Mars Climate Database and Physical Model development. In particular, the following main tasks are foreseen: validation of the Monte-Carlo radiative transfer tool for Mars, with a reference radiative transfer tool; implementation of a graphical interface for the Monte-Carlo code; extension of the capability of the Monte-Carlo code with a feature to compute the incident solar flux for a generically oriented flat panel on the Mars surface. Deliverables: Technical note (incl. the illumination spectrum in four particular conditions); validation report; updated Monte-Carlo Mars Sun Radiation environment tool, incl. Source Files / User's Manual / test files. Current TRL: Target TRL: Operational Application Need/Date: N/A tool / SW operational by 2008 method Application/Mission: Aurora, Exomars, HMM Contract Duration: 2 months SW Clause : Operational SW Dossier0 Ref.: T-16 Consistency with Harmonisation Roadmap and Conclusions: TRP Reference: Title: Mars climate database and physical models Update the European resources for Mars mission development related to environmental and dust characterisation. Reduce the uncertainties in the parameterization of physical processes. In order to prepare the future of Mars Exploration in Europe, and in particular improve our knowledge of the Martian environment at a level suitable for the Aurora program, the unique European Martian Circulation Model and Climate Database (developed by ESA with later support from CNES) must be improved by: - Inclusion of data from Mars Global Surveyor, Mars Express, and Mars Odyssey in the European Mars Climate Database (EMCD) - Dedicated study of the Mars atmosphere dust storms - High latitude processes on Mars (CO2 and H2O ice microphysics) - Inclusion of heating rate by phototelectrons in simulation of the thermosphere (120 - 300 km) - High resolution simulations of the lower atmosphere - Upgrades of the EMCD access software. Deliverables: Improved general circulation model of the Martian atmosphere, allowing mesoscale simulations; Assessment of Martian environment during dust storms; Improved Martian climate database based on assimilated data of current Mars missions. Current TRL: Target TRL: Operational Application Need/Date: N/A tool / SW operational by 2008 method Application/Mission: Aurora, Exomars, HMM Contract Duration: 24 months SW Clause : - Dossier0 Ref.: T-16 Consistency with Harmonisation Roadmap and Conclusions: Page 77 of 227
TRP Work Plan 2005-2007 Description of Activities TEC-SB/7935/dc 12/Feb/09 TRP Reference: 04/K25 Title: Martian radiation environment models The aim of this activity is to produce dynamic models of the radiation environment on and around Mars. Due to the rarity of its atmosphere, the surface of Mars is exposed to large fraction of the incoming cosmic ray heavy ions, solar X-rays and ultraviolet radiation and, during solar active periods, to large fluxes of energetic solar charged particles. Adding to these, there is a contribution from secondary particles generated by nuclear reactions either in the atmosphere or on the Martian surface, neutrons being of particular concern. The following features will be addressed: - In-orbit radiation environment around Mars; - Atmospheric attenuation of incoming radiation (utilising the existing dynamic models of the Martian atmosphere); - Surface contours and altitude variations; - Effects of dust storms to radiation propagation; - Particle absorption and backscattering from the surface, taking into account the latest results on the water content and the elemental composition of the local soil; - Local pockets of magnetic fields in the southern hemisphere of the planet, and their potential radiation shielding effect. The study shall utilize the new data from Rosetta SREM instrument. The models shall enable input of galactic cosmic ray and solar event particle spectra as chosen by the user. The particle transport software shall utilise the open-source Geant4 toolkit and be implemented in an easy-to-use WWW-based engineering environment. Interface to the existing Mars environment data base (http://www-mars.lmd.jussieu.fr/mars/live_access.html) could be considered. Deliverables: New WWW-based, easy-to-use engineering models and software for Martian radiation environment prediction. Current TRL: Target TRL: Application Need/Date: SW operational (updated TRL1 TRL3 model) >2007 Application/Mission: Aurora missions phase B from 2007. Contract Duration: 18 months SW Clause : - Dossier0 Ref.: T-16 Consistency with Harmonisation Roadmap and Conclusions: Page 78 of 227
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