Abstract

Reported here for the first time is the use of simultaneous airborne laser-induced dye fluorescence and the 3400-cm⁻¹ OH-stretch water Raman backscatter spectra to yield the absolute concentration of an ocean-dispersed tracer dye. Using a straightforward theoretical model, the concentration is calculated by numerically comparing the airborne laser-induced fluorescence and Raman backscatter spectra to similar laboratory data for a known dye concentration measured under comparable environmental and instrumental conditions. The dye is assumed to be uniformly mixed throughout the water column together with other interfering, fluorescent, organic matter. A minimum detectable integrated water column dye concentration of ~2 ppb by weight as limited by background and instrument noise is obtained. A dye concentration contour map produced from the conical scan lidar data is given.

© 1981 Optical Society of America

Airborne simultaneous spectroscopic detection of laser-induced water Raman backscatter and fluorescence from chlorophyll a and other naturally occurring pigments

F. E. Hoge and R. N. Swift
Appl. Opt. 20(18) 3197-3205 (1981)

Oil film thickness measurement using airborne laser-induced water Raman backscatter

F. E. Hoge and R. N. Swift
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Airborne detection of oceanic turbidity cell structure using depth-resolved laser-induced water Raman backscatter

Frank E. Hoge and Robert N. Swift
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Use of water Raman emission to correct airborne laser fluorosensor data for effects of water optical attenuation

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Experimental feasibility of the airborne measurement of absolute oil fluorescence spectral conversion efficiency

F. E. Hoge and R. N. Swift
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