Articles | Volume 15, issue 4
https://doi.org/10.5194/bg-15-1115-2018
https://doi.org/10.5194/bg-15-1115-2018
Research article
 | 
23 Feb 2018
Research article |  | 23 Feb 2018

Sources, fluxes, and behaviors of fluorescent dissolved organic matter (FDOM) in the Nakdong River Estuary, Korea

Shin-Ah Lee and Guebuem Kim

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Cited articles

Baker, A. and Spencer, R. G.: Characterization of dissolved organic matter from source to sea using fluorescence and absorbance spectroscopy, Sci. Total Environ., 333, 217–232, 2004. 
Bauer, J. and Bianchi, T.: 5.02 – dissolved organic carbon cycling and transformation, Treatise on estuarine and coastal science, Academic Press, Waltham, 7–67, 2011. 
Bauer, J. E., Cai, W.-J., Raymond, P. A., Bianchi, T. S., Hopkinson, C. S., and Regnier, P. A.: The changing carbon cycle of the coastal ocean, Nature, 504, 61–70, 2013. 
Belzile, C., Gibson, J. A., and Vincent, W. F.: Colored dissolved organic matter and dissolved organic carbon exclusion from lake ice: Implications for irradiance transmission and carbon cycling, Limnol. Oceanogr., 47, 1283–1293, 2002. 
Benner, R. and Opsahl, S.: Molecular indicators of the sources and transformations of dissolved organic matter in the Mississippi river plume, Org. Geochem., 32, 597–611, 2001. 
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The fluorescent dissolved organic matter (FDOM) delivered from riverine discharges significantly affects carbon and biogeochemical cycles in coastal waters. Our results show that the terrestrial concentrations of humic-like FDOM in river water were 60–80 % higher in the summer and fall, while the in situ production of protein-like FDOM was 70–80 % higher in the spring. Our results suggest that there are large seasonal changes in riverine fluxes of FDOM components to the ocean.
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