Off-axis lidar returns from high clouds: calculations and measurements

Goulven Monnier; Olga Lado-Bordowsky

doi:10.1117/12.373065

8 December 1999 Off-axis lidar returns from high clouds: calculations and measurements

Goulven Monnier; Olga Lado-Bordowsky

Author Affiliations +

Proceedings Volume 3867, Satellite Remote Sensing of Clouds and the Atmosphere IV; (1999) https://doi.org/10.1117/12.373065
Event: Remote Sensing, 1999, Florence, Italy

Abstract

Lidar returns from clouds include successive scattering order contributions. Under several assumptions, they can be evaluated by a simple analytical model, where only forward and backward scattering events are considered. Such a model has been developed, which moreover accounts for realistic receiver/emitter characteristics. Two experimental settings, enabling multiple scattering contribution identification, are considered. They are referred as <<2-FOV>> and <<off-axis>> methods. The latter requires no special additional feature to common lidar devices. Both are examined through a simple simulated case, and two measurements performed on cirrus clouds layers. 2-FOV method leads to an accurate estimate of ice crystals diffraction peak width. Off-axis approach, although theoretically efficient and experimentally less requiring, proved to be rather critical, and has to be properly improved.

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Goulven Monnier, Goulven Monnier, Olga Lado-Bordowsky, Olga Lado-Bordowsky, } "Off-axis lidar returns from high clouds: calculations and measurements", Proc. SPIE 3867, Satellite Remote Sensing of Clouds and the Atmosphere IV, (8 December 1999); doi: 10.1117/12.373065; https://doi.org/10.1117/12.373065

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