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Absolute tracer dye concentration using airborne laser-induced water Raman backscatterThe use of simultaneous airborne-laser-induced dye fluorescence and water Raman backscatter to measure the absolute concentration of an ocean-dispersed tracer dye is discussed. Theoretical considerations of the calculation of dye concentration by the numerical comparison of airborne laser-induced fluorescence spectra with laboratory spectra for known dye concentrations using the 3400/cm OH-stretch water Raman scatter as a calibration signal are presented which show that minimum errors are obtained and no data concerning water mass transmission properties are required when the laser wavelength is chosen to yield a Raman signal near the dye emission band. Results of field experiments conducted with an airborne conical scan lidar over a site in New York Bight into which rhodamine dye had been injected in a study of oil spill dispersion are then indicated which resulted in a contour map of dye concentrations, with a minimum detectable dye concentration of approximately 2 ppb by weight.
Document ID
19810044328
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Hoge, F. E.
(NASA Wallops Flight Center Wallops Island, Va., United States)
Swift, R. N.
(EG&G Washington Analytical Services Center Inc., Pocomoke City, Md., United States)
Date Acquired
August 11, 2013
Publication Date
April 1, 1981
Publication Information
Publication: Applied Optics
Volume: 20
Subject Category
Oceanography
Accession Number
81A28732
Distribution Limits
Public
Copyright
Other

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