Odin/SMR Limb Observations of Stratospheric Trace Gases: Level 2 Processing of ClO, N2O, O3, and HNO3
Journal article, 2005
The Sub-Millimetre Radiometer (SMR) on board the Odin satellite, launched on 20 February 2001, observes key species with respect to stratospheric chemistry and dynamics such as O-3, ClO, N2O, and HNO3 using two bands centered at 501.8 and 544.6 GHz. We present the adopted methodology for level 2 processing and the achieved in-orbit measurement capabilities of the SMR radiometer for these species in terms of altitude range, altitude resolution, and measurement precision. The characteristics of the relevant level 2 data versions, namely version 1.2 of the operational processor as well as versions 222 and 223 of the reference code, are discussed and differences are evaluated. An analysis of systematic retrieval errors, resulting from spectroscopic and instrumental uncertainties, is also presented.
Author
Joachim Urban
Chalmers, Department of Radio and Space Science, Global Environmental Measurements
N. Lautié
Chalmers
E. Le Flochmoën
Laboratoire dAerologie UMR 5560
University of Bordeaux
C. Jiménez
University of Edinburgh
Chalmers
Patrick Eriksson
Chalmers, Department of Radio and Space Science, Global Environmental Measurements
E. Dupuy
University of Bordeaux
L. El Amraoui
University of Bordeaux
Mattias Ekström
Chalmers, Department of Radio and Space Science, Global Environmental Measurements
U. Frisk
University of Bordeaux
Centre national de la recherche scientifique (CNRS)
Donal Murtagh
Chalmers, Department of Radio and Space Science, Global Environmental Measurements
J. De La Noë
Chalmers
Michael Olberg
Chalmers, Department of Radio and Space Science, Global Environmental Measurements
P. Ricaud
Laboratoire dAerologie UMR 5560
University of Bordeaux
Journal of Geophysical Research
01480227 (ISSN) 21562202 (eISSN)
Vol. 110 D14 1-20 D14307Subject Categories (SSIF 2011)
Meteorology and Atmospheric Sciences
DOI
10.1029/2004JD005741