Quantum fluorescence efficiencies of fulvic and humic acids: effects on ocean color and fluorometric detection

Steven K. Hawes; Kendall L. Carder; George R. Harvey

doi:10.1117/12.140652

31 December 1992 Quantum fluorescence efficiencies of fulvic and humic acids: effects on ocean color and fluorometric detection

Steven K. Hawes, Kendall L. Carder, George R. Harvey

Author Affiliations +

Proceedings Volume 1750, Ocean Optics XI; (1992) https://doi.org/10.1117/12.140652
Event: San Diego '92, 1992, San Diego, CA, United States

Abstract

The spectral fluorescence efficiency function ((eta) ((lambda) _x,(lambda) _m) equals quanta fluoresced per nm interval of (lambda) _m per quanta absorbed at (lambda) _x, (lambda) _x equals excitation wavelength, (lambda) _m equals emission wavelength) has been determined for several different fulvic and humic acid samples, and the 3-dimensional surfaces have been described mathematically. These data are used along with a published two-flow irradiance model to calculate the effect of solar-stimulated fluorescence due to colored dissolved organic matter (CDOM; also gelbstoff) on irradiance reflectance just below the sea surface along a transect taken on the West Florida Shelf. In addition, a strategy is suggested for using (eta) ((lambda) _x,(lambda) _m) and mass-specific absorption coefficient measurements of CDOM to determine CDOM concentrations from remotely sensed fluorescence measurements.

Citation Download Citation

Steven K. Hawes, Kendall L. Carder, and George R. Harvey "Quantum fluorescence efficiencies of fulvic and humic acids: effects on ocean color and fluorometric detection", Proc. SPIE 1750, Ocean Optics XI, (31 December 1992); https://doi.org/10.1117/12.140652

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