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Toward a coherent set of radiative transfer tools for the analysis of planetary atmospheres

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Mem. S.A.It. Vol. 87, 186

SAIt 2016 c

Memoriedella

Toward a coherent set of radiative transfer tools for the analysis of planetary atmospheres

D. Grassi

1

, N.I. Ignatiev

2

, L.V. Zasova

2

, G. Piccioni

1

, A. Adriani

1

, M.L. Moriconi

3

, G. Sindoni

1

, E. D’Aversa

1

, M. Snels

3

, F. Altieri

1

, A. Migliorini

1

, S. Stefani

1

, R. Politi

1

,

B.M. Dinelli

3

, A. Geminale

1

, and G. Rinaldi

1

1

INAF-IAPS, Istituto di Astrofisica e Planetologia Spaziali, Area di Ricerca di Tor Vergata, via Fosso del Cavaliere 100, 00133, Rome, Italy

2

IKI-RAS, 84/32 Profsoyuznaya Str, 117997 Moscow, Russia

3

ISAC-CNR, Via Fosso del Cavaliere, 100, 00133 Roma, Italy

Abstract.

The IAPS experience in the field of analysis of planetary atmospheres from visual and infrared measurements dates back to the early ’90 in the frame of the IFSI participation to the Mars96 program. Since then, the forward models as well as retrieval schemes have been constantly up- dated and have seen a large usage in the analysis of data from Mars Express, Venus Express and Cassini missions. At the eve of a new series of missions (Juno, ExoMars, JUICE), we review the tools currently available to the Italian community, the latest developments and future perspec- tives. Notably, recent reanalysis of PFS-MEX and VIRTIS-VEX data (Grassi et al. 2014) leaded to a full convergence of complete Bayesian retrieval schemes and approximate forward models, achieving a degree of maturity and flexibility quite close to the state-of-the-art NEMESIS pack- age (Irwin et al. 2008). As a test case, the retrieval code for the JIRAM observations of hot-spots will be discussed, with extensive validation against simulated observations.

Acknowledgements. The studies presented here were funded by ASI in a number of different projects: Mars Express, ESS and more recently Juno (I/010/10/0), Venus Express (I/050/10/0) and JUICE (2013-056-R.O.).

References

Grassi, D., Politi, R., Ignatiev, N. I., et al. 2014, J. Geophys. Res. (Planets), 119, 837

Irwin, P. G. J., Teanby, N. A., de Kok, R., et al. 2008, J. Quant. Spec. Radiat. Transf., 109, 1136

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