Retrieving quantum yield of sun-induced chlorophyll fluorescence near surface from hyperspectral in-situ measurement in productive water

J. Zhou, A. Gilerson, I. Ioannau, S. Hlaing, J. Schalles, B. Gross, F. Moshary, S. Ahmed

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Abstract

Magnitude and quantum yield (η) of sun induced chlorophyll fluorescence are determined in widely varying productive waters with chlorophyll concentrations from 2- 200 mg/m3. Fluorescence was estimated using linear fitting of in-situ measured surface reflectance with elastic and inelastic reflectance spectra. Elastic reflectance spectra were obtained from Hydrolight simulations with measured absorption and attenuation spectra as inputs. η is then computed based on a depth integrated fluorescence model and compared with Hydrolight calculation results. Despite the large variability of coastal environments examined the η values are found to vary over a relatively narrow range 0.1%-1% with mean values of 0.33%±0.17%.

Original languageEnglish (US)
Pages (from-to)17468-17483
Number of pages16
JournalOptics Express
Volume16
Issue number22
DOIs
StatePublished - Oct 27 2008

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All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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