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Atmospheric Measurement Techniques An interactive open-access journal of the European Geosciences Union
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Volume 6, issue 4 | Copyright
Atmos. Meas. Tech., 6, 981-990, 2013
https://doi.org/10.5194/amt-6-981-2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 15 Apr 2013

Research article | 15 Apr 2013

Note on rotational-Raman scattering in the O2 A- and B-bands

A. Vasilkov1, J. Joiner2, and R. Spurr3 A. Vasilkov et al.
  • 1Science Systems and Applications Inc., Lanham, MD, USA
  • 2NASA Goddard Space Flight Center, Greenbelt, MD, USA
  • 3RT Solutions Inc., Cambridge, MA, USA

Abstract. Quantifying the impact of rotational-Raman scattering (RRS) on the O2 A- and B-bands is important as these bands can be used for cloud and aerosol characterization for trace-gas retrievals including CO2 and CH4. In this paper, we simulate the spectral effects of RRS for various viewing geometries and instruments with different spectral resolutions. We also examine how aerosols affect the amount of RRS filling-in. We show that the filling-in effects of RRS are relatively small, but not negligible, in these O2 absorption bands, particularly for high-spectral-resolution instruments. For comparison, we also compare and contrast the spectral signatures of RRS with those of terrestrial chlorophyll fluorescence.

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