Retrieval of temperature and pressure using broadband solar occultation: SOFIE approach and results
Measurement of atmospheric temperature as a function of pressure, <i>T(P)</i>, 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 over...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2011-05-01
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| Series: | Atmospheric Measurement Techniques |
| Online Access: | http://www.atmos-meas-tech.net/4/893/2011/amt-4-893-2011.pdf |
| Summary: | Measurement of atmospheric temperature as a function of pressure, <i>T(P)</i>, 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 <i>T(P)</i> using both broadband transmittance and refraction are discussed. Investigations using measurements of broadband transmittance in two CO<sub>2</sub> 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. |
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| ISSN: | 1867-1381 1867-8548 |