Odin/OSIRIS observations of stratospheric NO3 through sunrise and sunset

5Citations
Citations of this article
6Readers
Mendeley users who have this article in their library.

Abstract

The nitrate radical (NO3) has been detected in visible limb-scattered spectra measured by the Optical Spectrograph and InfraRed Imager System (OSIRIS) on-board the Odin satellite when observing at large solar zenith angles (91ĝ€"97°). Apparent slant column densities of NO3 at tangent heights between 10 and 45 km are derived via spectral fitting in the 610ĝ€"680 nm window. Using observations from multiple scans spanning solar zenith angles of 91ĝ€"97°, the rapid evolution of NO3 through sunrise and sunset can be traced. Slant column densities are found to be generally consistent with those simulated using a radiative transfer model with coupled photochemistry. In addition, a strong dependence of NO3 with temperature is observed. These results indicate that our current knowledge of NO3 photochemistry is generally consistent with OSIRIS observations to within the limitations of the radiative transfer modeling. Furthermore, they reveal that OSIRIS possesses signal-to-noise sufficient to make useful measurements of scattered sunlight out to solar zenith angles of 91ĝ€"97& deg; and suggest the possibility of retrieving profile information for NO 3 and other species at large solar zenith angles.

Cite

CITATION STYLE

APA

McLinden, C. A., & Haley, C. S. (2008). Odin/OSIRIS observations of stratospheric NO3 through sunrise and sunset. Atmospheric Chemistry and Physics, 8(18), 5529–5534. https://doi.org/10.5194/acp-8-5529-2008

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free