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Proceedings Paper

Backscatter anisotropy and the shape of retroreflected lidar pulse from sea water
Author(s): Valery L. Bogdanov; Yurij I. Kopilevich; George V. Lukomskij; George B. Sochilin
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Paper Abstract

In several LIDAR sounding experiments, certain anomalies in the registered pulse shape were observed, such as the time delay between maxima of pulse of sea-water response and surface- reflected pulse, and unexpectedly high level of signals from isolated sea-water layers. These peculiarities cannot be explained with the traditional theoretical treatment of the echo-signals. In this paper, a new explanation of the return signals shape anomalies is presented. Our approach is based on the accounting of the angular anisotropy of the scattering in the back hemisphere and the geometrical conditions of the typical LIDAR experiments. We present computational data and laboratory measurement results related to enhanced backscattering by large coated particles suggested to model the optical properties of some algal cell species (diatoms, and so forth). The model calculations of the LIDAR signal shape show that such particles may be responsible for an anomalously high level of LIDAR signals from isolated sea-water layers.

Paper Details

Date Published: 1 November 1993
PDF: 32 pages
Proc. SPIE 2111, Symposium on Russian Airborne Geophysics and Remote Sensing, (1 November 1993); doi: 10.1117/12.162854
Show Author Affiliations
Valery L. Bogdanov, STEM, Ltd. (Russia)
Yurij I. Kopilevich, STEM, Ltd. (Russia)
George V. Lukomskij, STEM, Ltd. (Russia)
George B. Sochilin, STEM, Ltd. (Russia)

Published in SPIE Proceedings Vol. 2111:
Symposium on Russian Airborne Geophysics and Remote Sensing
Norman Harthill, Editor(s)

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