Retrieval of cirrus cloud temperature and infrared optical depth using the Along-Track Scanning Radiometer

Jaqueline E. Russell; Joanna D. Haigh

doi:10.1117/12.262483

20 December 1996 Retrieval of cirrus cloud temperature and infrared optical depth using the Along-Track Scanning Radiometer

Jaqueline E. Russell, Joanna D. Haigh

Author Affiliations +

Proceedings Volume 2961, Satellite Remote Sensing and Modeling of Clouds and the Atmosphere; (1996) https://doi.org/10.1117/12.262483
Event: Satellite Remote Sensing III, 1996, Taormina, Italy

Abstract

A method is described for the retrieval of cirrus cloud temperature and optical depth using thermal infrared data from the along-track scanning radiometer. The method utilizes above cloud and nearby clear sky thermal infrared data at two different viewing angles and assumes that the cirrus cloud is nonscattering, isothermal and semitransparent. The sensitivity of the method to small uncertainties in the input parameters is calculated. It is shown that vertical inhomogeneity can cause large errors in the retrieved quantities for a wide range of cloud types. However, for the majority of expected cirrus cloud optical and physical thicknesses retrieved quantities remain within usable limits, with optical depth being retrieved to an accuracy of around 10 percent or better and temperature to 10K.

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Jaqueline E. Russell and Joanna D. Haigh "Retrieval of cirrus cloud temperature and infrared optical depth using the Along-Track Scanning Radiometer", Proc. SPIE 2961, Satellite Remote Sensing and Modeling of Clouds and the Atmosphere, (20 December 1996); https://doi.org/10.1117/12.262483

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