Comparison of the relationships between lidar integrated backscattered light and accumulated depolarization ratios for linear and circular polarization for water droplets, fog oil, and dust

PDF

Authors
  1. Cao, X.
  2. Roy, G.
  3. Roy, N.
  4. Bernier, R.
Corporate Authors
Defence R&D Canada - Valcartier, Valcartier QUE (CAN)
Abstract
Recently, an empirical relationship between the layer integrate backscattered light and the layer accumulated depolarization ratio has been established for linear polarization for the case of water droplet clouds. This is a powerful relation, allowing calibration of space lidar and correction of the lidar signal for multiple scattering effects. The relationship is strongly based on Monte Carlo simulations with some experimental evidence. We support the empirical relationship with strong experimental data and then show experimentally and via second order scattering theoretical calculations that a modified relationship can be obtained for circular polarization. Also, we demonstrate that other empirical relationships exist between the layer accumulated linear and circular polarization ratios and the layer integrated backscattered light for submicrometer particles and nonspherical particles.
Report Number
DRDC-VALCARTIER-SL-2009-163 — Scientific Literature
Date of publication
20 Jul 2009
Number of Pages
12
DSTKIM No
CA032816
CANDIS No
532047
Format(s):
Document Image stored on Optical Disk

Permanent link

Document 1 of 1

Date modified: