Variability of light absorption coefficients by different size fractions of suspensions in the southern Baltic Sea

The average chlorophyll-specific and mass-specific light absorption coefficients, i.e., light absorption coefficients normalized to Chl a or SPM, were determined for all size fractions. The chlorophyll-specific coefficients ap(Chla)(λ), ad(Chla)(λ) and aph(Chla)(λ), ± standard deviations, do not...

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Veröffentlicht in:Biogeosciences 2023-06, Vol.20 (12), p.2525-2551
Hauptverfasser: Meler, Justyna, Litwicka, Dagmara, Zablocka, Monika
Format: Artikel
Sprache:eng
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Zusammenfassung:The average chlorophyll-specific and mass-specific light absorption coefficients, i.e., light absorption coefficients normalized to Chl a or SPM, were determined for all size fractions. The chlorophyll-specific coefficients ap(Chla)(λ), ad(Chla)(λ) and aph(Chla)(λ), ± standard deviations, do not allow clear separation of the individual fractions. For mass-specific coefficients, ap(SPM)(λ), ad(SPM)(λ) and aph(SPM)(λ), it is possible to distinguish between large particles (20-200 µm) and small and medium particles (0.2-20 µm). These results will allow monitoring of suspended matter in size classes in optically complex waters of southern Baltic Sea.
ISSN:1726-4189
1726-4170
1726-4189
DOI:10.5194/bg-20-2525-2023