Radiation transfer of emitting clouds that can scatter within the atmosphere for near-horizontal paths

Richard I. Joseph; Michael E. Thomas

doi:10.1117/12.665478

19 May 2006 Radiation transfer of emitting clouds that can scatter within the atmosphere for near-horizontal paths

Richard I. Joseph, Michael E. Thomas

Proceedings Volume 6218, Chemical and Biological Sensing VII; 62180U (2006) https://doi.org/10.1117/12.665478
Event: Defense and Security Symposium, 2006, Orlando (Kissimmee), Florida, United States

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 ℓ , 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 ℓ(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 ℓ 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.

Citation Download Citation

Richard I. Joseph and Michael E. Thomas "Radiation transfer of emitting clouds that can scatter within the atmosphere for near-horizontal paths", Proc. SPIE 6218, Chemical and Biological Sensing VII, 62180U (19 May 2006); https://doi.org/10.1117/12.665478

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