Analysis of Stratospheric Temperatures Retrieved from OSIRIS from 2002-2019
Abstract
The Optical Spectrograph and InfraRed Imaging System (OSIRIS) was launched on-board the swedish Odin satellite in 2001. OSIRIS measures limb scattered radiances in the UV-Vis-NIR spectral region, vertically scanning from the ground to approximately 80 km. Radiances near 350 nm are used to obtain vertical profiles of Rayleigh scattering extinction, which are then integrated assuming hydrostatic balance and the ideal gas law to obtain temperatures in the 35--55 km region. The focus of this work is on the challenges associated with obtaining trend quality temperatures in the upper stratosphere from OSIRIS, and limb scattered measurements in general. Temperature drifts are assessed through comparisons with multiple long term temperature records such as those from the Microwave Limb Sounder (MLS) and Sounding of the Atmosphere using Broadband Emission Radiometry (SABER) instruments.
- Publication:
-
AGU Fall Meeting Abstracts
- Pub Date:
- December 2019
- Bibcode:
- 2019AGUFM.A51R2649Z
- Keywords:
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- 0340 Middle atmosphere: composition and chemistry;
- ATMOSPHERIC COMPOSITION AND STRUCTURE;
- 0365 Troposphere: composition and chemistry;
- ATMOSPHERIC COMPOSITION AND STRUCTURE;
- 3305 Climate change and variability;
- ATMOSPHERIC PROCESSES;
- 3362 Stratosphere/troposphere interactions;
- ATMOSPHERIC PROCESSES