Oct 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011epsc.conf.1259g&link_type=abstract
EPSC-DPS Joint Meeting 2011, held 2-7 October 2011 in Nantes, France. http://meetings.copernicus.org/epsc-dps2011, p.1259
Other
Scientific paper
Numerical models are important to account for the basic plasma processes in the Earth and planetary atmospheres, and more generally, for heliophysics studies. One of the greatest sources of inaccuracies for these models are the cross sections used to compute ionizations, dissociations, and excitations of the different atoms and molecules, by photon, electron, proton (. . . ) impact. Up to now, several sets of cross sections have been used by different teams, sometimes with significant differences. Therefore, cross models comparisons have been mostly a test of each datasets rather than a test of the physics of the interactions. To account for these issues, we are developing a database called "AtMoCIAD" for "Atomic and Molecular Cross section for Ionization and Airglow/aurora Database". It consists of: - a set of techniques to check the integrity of the cross sections. - a set of techniques to estimate the influence of these uncertainties on the model outputs. - a central database, with recommended cross sections, and their uncertainties. - a set of tools to discuss the cross sections, to add new ones, to compare the different versions. Currently, the main upper atmosphere species have been integrated into the database. The addition of other species needs an effort that should be supported by the community, especially if partial sets of cross sections have been compiled elsewhere. To support that evolution, the database interface is being actively developed to allow improved user interactions.
Gronoff Guillaume
Johnson Paul V.
Lilensten Jean
Lillis R.
Mertens Chris J.
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