3 October 2006 Measurement simulation of spatial coherence and density degree by turbulence of aerosol and CO2 in atmospheric environment
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Abstract
Atmopheric turbulence is one of the important correction factors to evaluate the earth's surface using a sinsor on a satellite. CO2 and aerosol are selected as factors of turbulence. The effects of turbulence caused by CO2 and aerosol on the light reflected from the earth's surface are estimated by measuring the degradation of spatial coherence of light in a chamber in which atmospheric turbulence is generated. Dry ice is used to generate carbon dioxide gas. degradation of spatial coherence is measured in relation to the increase of CO2. Turbulence caused by aerosol is measured by density of smoke cigarettes. The spatial coherence of light in the chamber degrades in relation to the increase of aerosol and as a result the turbulence increases. The relation between the turbulence and the degree of spatial coherence is explained in a formula.
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Hiroshi Okayama, Wei Li, "Measurement simulation of spatial coherence and density degree by turbulence of aerosol and CO2 in atmospheric environment", Proc. SPIE 6367, Lidar Technologies, Techniques, and Measurements for Atmospheric Remote Sensing II, 63670W (3 October 2006); doi: 10.1117/12.689253; https://doi.org/10.1117/12.689253
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