Observation of HD18O, CH3OH and vibrationally-excited N2O from Odin/SMR measurements

Zdenek Zelinger (1) , Brice Barret (2) , Pavel Kubát (3) , Philippe Ricaud (2, 4) , Jean-Luc Attié (2) , Eric Le Flochmoën (2) , Jakub Urban (5) , Donal Murtagh (6) , Michal Střižík (7)

1 J. Heyrovský Institute of Physical Chemistry of the ASCR
2 LAERO - Laboratoire d'aérologie
3 HIPC / CAS - Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences
4 CNRM - Centre national de recherches météorologiques
5 Department of Radio and Space Science [Göteborg]
6 SEE - Department of Space, Earth and Environment
7 VSB - Technical University of Ostrava [Ostrava]

The sub-millimetre radiometer (SMR) instrument aboard the Odin satellite launched in February 2001 is dedicated to the observation of trace gas profiles in the stratosphere and in the mesosphere, in particular water vapour and its isotopic species HDO, H2 17O and H2 18O. By averaging more than 400 000 Odin/SMR spectra over the period from November 2002 to March 2003, weak lines have been detected in the atmosphere. These weak lines have been attributed to water isotopic species HD18O, to a vibrationally-excited N2O, and to CH3OH.

Domaines: Physique Atmosphérique et Océanique [physics.ao-ph]

Zdenek Zelinger, Brice Barret, Pavel Kubát, Philippe Ricaud, Jean-Luc Attié, et al.. Observation of HD18O, CH3OH and vibrationally-excited N2O from Odin/SMR measurements. Molecular Physics, 2006, 104 (16-17), pp.2815-2820. ⟨10.1080/00268970600875380⟩. ⟨hal-00138025⟩