HR: 16:45h
AN: A54A-04    [Abstracts]
TI: Validation of the Odin/OSIRIS Stratospheric Ozone Profiles: Statistical Comparisons With Coincident Ozonesonde, POAM III, SAGE II, and SAGE III Measurements
AU: * Petelina, S V
EM: svetlana@osirus.usask.ca
AF: ISAS, University of Saskatchewan, 116 Science Place, Saskatoon, SK S7N 5E2 Canada
AU: Llewellyn, E J
EM: edward.llewellyn@usask.ca
AF: ISAS, University of Saskatchewan, 116 Science Place, Saskatoon, SK S7N 5E2 Canada
AU: Degenstein, D A
EM: doug.degenstein@usask.ca
AF: ISAS, University of Saskatchewan, 116 Science Place, Saskatoon, SK S7N 5E2 Canada
AU: Lloyd, N D
EM: lloyd@osirus.usask.ca
AF: ISAS, University of Saskatchewan, 116 Science Place, Saskatoon, SK S7N 5E2 Canada
AU: Gattinger, R L
EM: gattinger@usask.ca
AF: ISAS, University of Saskatchewan, 116 Science Place, Saskatoon, SK S7N 5E2 Canada
AB: Since November 2001, stratospheric ozone profiles have been regularly retrieved from the Odin/OSIRIS limb measurements of the scattered sunlight in the Chappuis absorption band. Profiles are calculated on a 2 km vertical grid between 10 km and 50 km using the paired radiance method developed by Flittner et al. [GRL, 27, 2601-2604, 2000] and McPeters et al. [GRL, 27, 2597-2600, 2000] for the SOLSE/LORE experiment. OSIRIS ozone profiles (version 012) have been freely available to the international research community at http://osirus.usask.ca since January 15, 2004. In this work we present the results of statistical intercomparison of the OSIRIS stratospheric ozone profiles with coincident profiles measured by POAM III, SAGE II, SAGE III and ozonesondes. The agreement between all instruments in the altitude range of 15 km to 35 km is within 7-10 percent except for the April-July 2002, and March-June, 2003 periods, when there may be an apparent downward altitude shift of up to 1 km. This apparent altitude shift increases the difference between OSIRIS and other instruments to about 30 percent below 15 km and above 35 km. The major reason for the altitude offset is presently attributed to an incorrect Odin attitude registration.
DE: 3337 Numerical modeling and data assimilation
DE: 3359 Radiative processes
DE: 3360 Remote sensing
DE: 0300 ATMOSPHERIC COMPOSITION AND STRUCTURE
DE: 0394 Instruments and techniques
SC: Atmospheric Sciences [A]
MN: 2004 AGU Fall Meeting