Estimation of cloud droplet size density distribution from multiple-field-of-view lidar returns

Gilles Roy; Luc R. Bissonnette; Christian Bastille; Gilles Vallee

doi:10.1117/1.601594

1 December 1997 Estimation of cloud droplet size density distribution from multiple-field-of-view lidar returns

Gilles Roy, Luc R. Bissonnette, Christian Bastille, Gilles Vallee

Optical Engineering, Vol. 36, Issue 12, (December 1997). https://doi.org/10.1117/1.601594

A simple model based on diffraction and geometrical optics relates the field-of-view dependent lidar signal returns from clouds to the size density distribution of their water droplets. The relation is written in a matrix form. The apparent size density distribution is obtained via matrix inversion with a constraint technique. The perturbation caused by the geometrical optics is interpreted in terms of small-particle diffraction. The apparent size density distribution is corrected for multiple scattering a posteriori. The correction is established by calculating the relative contribution of the different scattering orders to the broadening of the scattering phase function. The validity of the model is supported by Monte Carlo simulations and by experimental data performed under controlled conditions. Finally the inversion technique is applied to multiple-field-ofview (MFOV) lidar measurements from real clouds.

Citation Download Citation

Gilles Roy, Luc R. Bissonnette, Christian Bastille, and Gilles Vallee "Estimation of cloud droplet size density distribution from multiple-field-of-view lidar returns," Optical Engineering 36(12), (1 December 1997). https://doi.org/10.1117/1.601594

Published: 1 December 1997

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available