Remote Sounding of Cirrus Cloud Optical Depths and Ice Crystal Sizes from AVHRR Data: Verification Using FIRE II IFO Measurements
| Autor: | Kuo-Nan Liou, Andrew J. Heymsfield, N. X. Rao, Yoshihide Takano, S. C. Ou, Qiang Fu, Stefan Kinne, Bryan A. Baum, Larry M. Miloshevich |
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| Rok vydání: | 1995 |
| Předmět: | |
| Zdroj: | Journal of the Atmospheric Sciences. 52:4143-4158 |
| ISSN: | 1520-0469 0022-4928 |
| DOI: | 10.1175/1520-0469(1995)052<4143:rsocco>2.0.co;2 |
| Popis: | Using the data obtained from the Advanced Very High Resolution Radiometer (AVHRR) 3.7-µm and 10.9-µm channels, a retrieval scheme has been developed to simultaneously infer cirrus cloud optical depth and mean effective ice crystal size based on the theory of radiative transfer and parameterizations. A numerical scheme is further developed to remove the solar component in the 3.7-µm radiance for applications to daytime satellite data. This scheme is based on the correlation between the 3.7-µm (solar) and 0.63-µm reflectances. Validation of the algorithm has been performed by using various datasets that were collected during the FIRE-II IFO (Nov-Dec 1991) at Coffeyville, Kansas. We have focused on the 26 November and 5 December cases. The retrieval analysis over a 0.5°×1.0° area is performed around Coffeyville for each case based on AVHRR-HRPT data. For validation the authors analyze the photomicrograph data collected by the balloonborne replicator, determine the microphysical and optical propertie... |
| Databáze: | OpenAIRE |
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