Retrieval of Droplet-Size Density Distribution from Multiple-Field-of-View Cross-Polarized Lidar Signals: Theory and Experimental Validation

PDF

Authors
  1. Roy, G.
  2. Bissonnette, L.
  3. Bastille, C.
  4. Vallee, G.
Corporate Authors
Defence Research Establishment Valcartier, Valcartier QUE (CAN)
Abstract
Multiple-field-of-view (MFOV) secondary-polarization lidar signals are used to calculate the particle-size density distribution (PSD) at the base of a cloud. At the cloud base, multiple scattering is weak and single backscattering is predominant by many orders of magnitude. Because secondary polarization is a direct measure of multiple scattering, it is therefore advantageous to use secondary polarization. A mathematical relation among the PSD, the lidar fields of view, the scattering angles, and the angular depolarization is derived to facilitate use of secondary polarization. The model is supported by experimental MFOV lidar measurements carried out in a controlled environment, and its limitations and restrictions are discussed.
Keywords
Multiple field of view (MFOV);MFOV (Multiple Field Of View);Multiple scattering
Date of publication
20 Aug 1999
Number of Pages
13
Reprinted from
Applied Optics, vol 38, no 24, 1999, p 5202-5211
DSTKIM No
99-01646
CANDIS No
511586
Format(s):
Hardcopy;Document Image stored on Optical Disk

Permanent link

Document 1 of 1

Date modified: