HR: 16:30h
AN: P34A-05 INVITED     [Abstracts]
TI: Huygens ASI Measurements At Titan: A New Insight Of Titan's Atmosphere
AU: * Ferri, F
EM: francesca.ferri@unipd.it
AF: CISAS - University Padova, via Venezia 15, Padova, 35131 Italy
AU: Fulchignoni, M
EM: marcello.fulchignoni@obspm.fr
AF: LESIA-Obs.Paris Meudon, 5 Place Jaussen, Meudon, 92195 France
AU: Colombatti, G
EM: giacomo.colombatti@unipd.it
AF: CISAS - University Padova, via Venezia 15, Padova, 35131 Italy
AU: Zarnecki, J C
EM: J.C.Zarnecki@open.ac.uk
AF: PSSRI-Open University, Walton Hall, Milton Keynes, MK7 6AA United Kingdom
AU: Harri, A
EM: ari-matti.harri@fmi.fi
AF: Finnish Meteorological Institute (FMI), Vuorikatu 15 A , Helsinki, 00100 Finland
AU: Coustenis, A
EM: athena.coustenis@obspm.fr
AF: LESIA-Obs.Paris Meudon, 5 Place Jaussen, Meudon, 92195 France
AU: Sicardy, B
EM: bruno.sicardy@obspm.fr
AF: LESIA-Obs.Paris Meudon, 5 Place Jaussen, Meudon, 92195 France
AU: Yelle, R
EM: yelle@lpl.arizona.edu
AF: Lunar and Planeraty Laboratory (LPL), 1629 E. University Blvd, Tucson, AZ 85721 United States
AB: During the Huygens probe mission at Titan on 14th January 2005, the Huygens Atmospheric Structure Instrument (HASI) obtained measurements of atmospheric properties from up above 1400 km down to the ground, thus inferring the atmospheric structure. The atmospheric profile along the Huygens probe trajectory during entry phase have been retrieved from the accelerometers data, while below 160 km direct pressure and temperature measurements have been performed. The vertical temperature profile retrieved from HASI data is in very good agreement with the model derived from Voyager's observations, confirms the evidence for a stratopause and the inversion layers in the upper atmosphere as observed during stellar occultations and yielded new details on atmospheric structure.
DE: 0343 Planetary atmospheres (5405, 5407, 5409, 5704, 5705, 5707)
DE: 5409 Atmospheres--structure and dynamics
SC: Planetary Sciences [P]
MN: 2005 Joint Assembly