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Atmospheric Measurement Techniques An interactive open-access journal of the European Geosciences Union

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Atmos. Meas. Tech., 4, 893-907, 2011
http://www.atmos-meas-tech.net/4/893/2011/
doi:10.5194/amt-4-893-2011
© Author(s) 2011. This work is distributed
under the Creative Commons Attribution 3.0 License.
Research article
18 May 2011
Retrieval of temperature and pressure using broadband solar occultation: SOFIE approach and results
B. T. Marshall1, L. E. Deaver1, R. E. Thompson1, L. L. Gordley1, M. J. McHugh1, M. E. Hervig2, and J. M. Russell III3 1GATS, Inc., 11864 Canon Blvd., Suite 101, Newport News, VA, 23606, USA
2GATS, Inc., 65 South Main St., Suite 5, Driggs, ID, 83422, USA
3Center for Atmospheric Sciences at Hampton University, 23 Tyler St., Hampton, VA, 23668, USA
Abstract. Measurement of atmospheric temperature as a function of pressure, T(P), is key to understanding many atmospheric processes and a prerequisite for retrieving gas mixing ratios and other parameters from solar occultation measurements. This paper gives a brief overview of the solar occultation measurement technique followed by a detailed discussion of the mechanisms that make the measurement sensitive to temperature. Methods for retrieving T(P) using both broadband transmittance and refraction are discussed. Investigations using measurements of broadband transmittance in two CO2 absorption bands (the 4.3 and 2.7 μm bands) and refractive bending are then presented. These investigations include sensitivity studies, simulated retrieval studies, and examples from SOFIE.

Citation: Marshall, B. T., Deaver, L. E., Thompson, R. E., Gordley, L. L., McHugh, M. J., Hervig, M. E., and Russell III, J. M.: Retrieval of temperature and pressure using broadband solar occultation: SOFIE approach and results, Atmos. Meas. Tech., 4, 893-907, doi:10.5194/amt-4-893-2011, 2011.
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