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Optical Engineering

Application of laser-induced fluorescence for remote sensing of vegetation
Author(s): Gennadii G. Matvienko; Anatoly I. Grishin; Olga V. Kharchenko; Oleg A. Romanovskii
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Paper Abstract

The possibilities of applying a fluorescent lidar based on the second harmonic of a Nd:YAG laser to study vegetation under natural conditions are analyzed. The dynamics of development has been studied for several species of arboreous plants grown in West Siberia in a five-year measurement cycle. The fluorescent lidar developed has been used for identification of plant species and for investigation of fading caused by an adverse environment. It is shown that the fluorescent signal can be used for remote detection of plant stresses at earlier stages, when there are no visible symptoms. For the first time, the quantitative relations are established between the intensity of red nanosecond fluorescence and the chlorophyll concentration in needles and leaves of the most typical representatives of West Siberian arboreous plants. Fluorescent data were checked using the traditional spectrophotometric method. The spectrophotometric data and lidar measurements were used to calibrate the lidar, and this calibration has allowed the chlorophyll concentration in arboreous plants to be determined from the ratio of signals of laser-induced fluorescence.

Paper Details

Date Published: 1 May 2006
PDF: 5 pages
Opt. Eng. 45(5) 056201 doi: 10.1117/1.2202366
Published in: Optical Engineering Volume 45, Issue 5
Show Author Affiliations
Gennadii G. Matvienko, Institute of Atmospheric Optics (Russia)
Anatoly I. Grishin, Institute of Atmospheric Optics (Russia)
Olga V. Kharchenko, Institute of Atmospheric Optics (Russia)
Oleg A. Romanovskii, Institute of Atmospheric Optics (Russia)

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