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Proceedings Paper

Radiation transfer of emitting clouds that can scatter within the atmosphere for near-horizontal paths
Author(s): Richard I. Joseph; Michael E. Thomas
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Paper Abstract

A model is developed which consists of a horizontal atmospheric path divided into N+2 regions. The observer (sensor) is located in region 0, the cloud in an arbitrary region labeled , and the terminating object in region N+1. A simple expression is obtained for the cloud transmittance in a region labeled ℓwhich requires two observations: the radiance with no cloud present (background) and the radiance in region (some distance from the sensor). The analysis is then extended to a situation where two clouds (vapor or aerosol) are present. The scatter properties of the aerosol cloud must now be considered. The two clouds are now located in sections labeled and k. In order to determine the transmittance of each cloud, we shall show that three measurements are required. The resulting model enables one to determine the transmittance through each cloud from measured radiances.

Paper Details

Date Published: 19 May 2006
PDF: 10 pages
Proc. SPIE 6218, Chemical and Biological Sensing VII, 62180U (19 May 2006); doi: 10.1117/12.665478
Show Author Affiliations
Richard I. Joseph, Johns Hopkins Univ. (United States)
Michael E. Thomas, Johns Hopkins Univ. (United States)


Published in SPIE Proceedings Vol. 6218:
Chemical and Biological Sensing VII
Patrick J. Gardner; Augustus W. Fountain, Editor(s)

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