HR: 0800h
AN: A21A-0720    [Abstracts]
TI: Implications regarding the global distribution of water vapor isotopes observed by Odin/SMR: An estimation of the $\delta$D at the overhead of the TTL
AU: * KASAI, Y J
AF: National Institute Information and Telecommunications Technology, 4-2-1, Nukui-kita, Koganei, Tokyo, 184-8795 Japan
AU: Urban, J
AF: Radio and Space Science Department, Chalmars University of Thechnology, SE, Goteborg, 412 96 Sweden
AU: Lautie, N
AF: Radio and Space Science Department, Chalmars University of Thechnology, SE, Goteborg, 412 96 Sweden
AU: Recaud, P
AF: Observatorie Aquitain des Sciences de l'Univers, CNRS, L3AB, Universite Bordeaux1, BP89, Floirac, F-33270 France
AU: Recaud, P
AF: Laboratorie d'Aerologie, CNRS, Universite Paul Sabatier, 14, Avenue Edouard Belin, Toulose, F-31400 France
AU: Murtagh, D
AF: Radio and Space Science Department, Chalmars University of Thechnology, SE, Goteborg, 412 96 Sweden
AU: Dupuy, E
AF: Observatorie Aquitain des Sciences de l'Univers, CNRS, L3AB, Universite Bordeaux1, BP89, Floirac, F-33270 France
AU: Eriksson, P
AF: Radio and Space Science Department, Chalmars University of Thechnology, SE, Goteborg, 412 96 Sweden
AU: Frisk, U
AF: Swedish Space Corporation, P O Box 4207, Solona, SE-171 04 Sweden
AU: Jimenez, C
AF: Radio and Space Science Department, Chalmars University of Thechnology, SE, Goteborg, 412 96 Sweden
AU: Jimenez, C
AF: School of GeoSciences, The University of Edinburgh, The King's Buildings West Mains Road, Edinburgh, EH9 3JG United Kingdom
AU: de La Noe, J
AF: Observatorie Aquitain des Sciences de l'Univers, CNRS, L3AB, Universite Bordeaux1, BP89, Floirac, F-33270 France
AU: Le Flochmoen, E
AF: Observatorie Aquitain des Sciences de l'Univers, CNRS, L3AB, Universite Bordeaux1, BP89, Floirac, F-33270 France
AU: Le Flochmoen, E
AF: Laboratorie d'Aerologie, CNRS, Universite Paul Sabatier, 14, Avenue Edouard Belin, Toulose, F-31400 France
AU: Olberg, M
AF: Onsala Space Observatory, Chalmers University of Thechnology, SE, Goteborg, 412 96 Sweden
AB: Odin is a Swedish-led satellite project funded jointly by Sweden, Canada, Finland and France. The SubMillimeter Radiometer (SMR) onboard the Odin satellite, launched in February 2001, employs 4 tunable single-sideband Schottky-diode heterodyne receivers in the $\sim$485-580GHz spectral range. In aeronomy mode, various target bands are dedicated to observations of trace constituents relevant to stratospheric/mesospheric chemistry and dynamics such as O$\_{3}$, ClO, N$\_{2}$O, HNO$\_{3}$, H$\_{2}$O, CO, NO, as well as isotopes of H$\_{2}$O and O$\_{3}$. The global distribution of water vapor isotopes and its seasonal variation were obtained for the first time by Odin/SMR measurements. The $\delta$D of water vapor in the stratosphere agrees with the past measurements and a model. It increases with altitude from the TTL to the top of stratospehre. The methane contribution to the increase of $\delta$D is discussed ans the $\delta$D at the overhead of the TTL was estimated.
DE: 0320 Cloud physics and chemistry
DE: 0322 Constituent sources and sinks
DE: 0340 Middle atmosphere--composition and chemistry
DE: 0341 Middle atmosphere--constituent transport and chemistry (3334)
SC: Atmospheric Sciences [A]
MN: 2004 AGU Fall Meeting