Odin/SMR Satellite Observations of Ozone and its Isotopes in the Middle Atmosphere
Abstract
The global distribution of isotopic composition of atmospheric ozone has been studied by SubMillimeter Radiometer (SMR) onboard the Odin satellite with retrievals being performed by the Optimal Estimation Method. Odin/SMR launched in February 2001, employs 4 tunable single-sideband Schottky-diode heterodyne receivers in the 485-580GHz spectral range. Vertical profiles for the main isotopomer (16O16O16O) as well as the profiles of the minor isotopomers (16O16O18O, 16O18O16O) were then retrieved for day and night. Results are compared to previous ground-based FTIR, balloon-born FIR, and satellite measurements of isotopic enrichments in atmospheric ozone and found to have smaller uncertainties in the mid-latitude region. The results should therefore provide useful data for validating proposed mechanisms for the isotopic enrichments in atmospheric ozone in the middle atmosphere.
- Publication:
-
AGU Fall Meeting Abstracts
- Pub Date:
- December 2007
- Bibcode:
- 2007AGUFM.A43D1568K
- Keywords:
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- 0322 Constituent sources and sinks;
- 0340 Middle atmosphere: composition and chemistry;
- 0341 Middle atmosphere: constituent transport and chemistry (3334);
- 0343 Planetary atmospheres (5210;
- 5405;
- 5704);
- 0365 Troposphere: composition and chemistry