MULTISCATTERED LIDAR RETURNS FROM ATMOSPHERIC AEROSOLS

Authors
  1. Hutt, D.L.
  2. Bissonnette, L.R.
  3. Durand, L.
Corporate Authors
Defence Research Establishment Valcartier, Valcartier QUE (CAN);Laval Univ, Quebec QUE (CAN) Departement de Physique
Abstract
As a beam of light propagates through the atmosphere, scattering by aerosol particles causes the beam profile to broaden. A multi-field-of-view (MFOV) lidar has been developed which makes simultaneous measurements of the energy directly backscattered from the central beam and multiscattered signals arising from the broadened part of the beam. The direct backscatter signal constitutes a conventional Mie lidar signal. Measurements made along a near horizontal path in haze, fog and rain are presented. The results show that the multiscattered signals are strongly influenced by the extinction coefficient and size of the aerosols. Thus the multiscattered signals, together with the direct backscatter signal, contain more information about the aerosols than is available from a conventional signal field of view lidar.
Date of publication
15 Apr 1991
Number of Pages
12
Reprinted from
SPIE Propagation Engineering: Fourth in a Series, vol 1487, 1991, p 250-261
DSTKIM No
92-03266
CANDIS No
125720
Format(s):
Hardcopy;Originator's fiche received by DSIS

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