Multiple scattering measurements in optically dense media
Document ID: 327
Park, Jin Hyen1
Philbrick, C. Russell1
1 The Pennsylvania State University, Department of Electrical Engineering, University Park, PA, U.S.A.
Abstract
Multiple scattering is an important factor in treating the penetration of radiation through an optically thick medium, such as clouds and fog. Numerical calculations are performed using a Bistatic Monte Carlo method, and compared with chamber and field experiments conducted under a range of atmospheric conditions. The radial distributions of radiation scattered from the multistatic lidar beam are analyzed using CCD images to measure the spatial characteristics of multiple scattering. Changes in the multiple scattering characteristics are related to the number and size of scatterers in terms of optical depth. The polarization ratio of the scattering phase function also proved to be a useful way to extract multiple scattering effects at particular scattering angles. Multiple scattering increases the depolarization at side-scattering region, smaller than 160°.
Keywords: multiple scattering, multi-static lidar, radial distribution, polarization ratio, fog
| Citation: | "Multiple scattering measurements in optically dense media", Park, J. H., C. R. Philbrick, Journal of Applied Remote Sensing, SPIE, 2007, p. 14 |