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Roettgers, Ruediger; Dupouy, Cecile; Taylor, Bettina B.; Bracher, Astrid; Wozniak, Slawomir B.. |
The extent of light absorption in the near-infrared spectral region (NIR; 700-900 nm) of natural suspended particles was investigated by determining the absorption and mass-specific absorption coefficients of samples from different environments: river, coastal waters, tropical lagoon, and oceanic waters. Large amounts of sample were collected onto glass-fiber filters and measured inside the integrating sphere of a spectrophotometer. The absorption coefficient of particle suspension was also determined for visible wavelengths with a point-source integrating cavity absorption meter. Measurable nonzero particulate absorption in the NIR was determined in all samples, even in algal cultures. It was highest in the river samples (e.g., 1.7 m(-1) at 850 nm),... |
Tipo: Text |
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Ano: 2014 |
URL: https://archimer.ifremer.fr/doc/00297/40815/39842.pdf |
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