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
Received: 03 Nov 2010 – Discussion started: 17 Dec 2010
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.
Revised: 30 Mar 2011 – Accepted: 06 May 2011 – Published: 18 May 2011
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.