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BG | Articles | Volume 16, issue 13
Biogeosciences, 16, 2693–2713, 2019
https://doi.org/10.5194/bg-16-2693-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
Biogeosciences, 16, 2693–2713, 2019
https://doi.org/10.5194/bg-16-2693-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 11 Jul 2019

Research article | 11 Jul 2019

Dissolved organic matter at the fluvial–marine transition in the Laptev Sea using in situ data and ocean colour remote sensing

Bennet Juhls et al.

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Amon, R. M. W., Rinehart, A. J., Duan, S., Louchouarn, P., Prokushkin, A., Guggenberger, G., Bauch, D., Stedmon, C., Raymond, P. A., Holmes, R. M., McClelland, J. W., Peterson, B. J., Walker, S. A., and Zhulidov, A. V.: Dissolved organic matter sources in large Arctic rivers, Geochim. Cosmochim. Ac., 94, 217–237, https://doi.org/10.1016/J.GCA.2012.07.015, 2012. 
Antoine, D., Hooker, S. B., Bélanger, S., Matsuoka, A., and Babin, M.: Apparent optical properties of the Canadian Beaufort Sea – Part 1: Observational overview and water column relationships, Biogeosciences, 10, 4493–4509, https://doi.org/10.5194/bg-10-4493-2013, 2013. 
Antoine, D., Babin, M., Berthon, J.-F., Bricaud, A., Gentili, B., Loisel, H., Maritorena, S., and Stramski, D.: Shedding Light on the Sea: André Morel's Legacy to Optical Oceanography, Annu. Rev. Mar. Sci, 6, 1–21, https://doi.org/10.1146/annurev-marine-010213-135135, 2014. 
Asmala, E., Bowers, D. G., Autio, R., Kaartokallio, H., and Thomas, D. N.: Qualitative changes of riverine dissolved organic matter at low salinities due to flocculation, J. Geophys. Res.-Biogeo., 119, 1919–1933, https://doi.org/10.1002/2014JG002722, 2014. 
Babin, M., Stramski, D., Ferrari, G. M., Claustre, H., Bricaud, A., Obolensky, G., and Hoepffner, N.: Variations in the light absorption coefficients of phytoplankton, nonalgal particles, and dissolved organic matter in coastal waters around Europe, J. Geophys. Res., 108, 3211, https://doi.org/10.1029/2001JC000882, 2003. 
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In this article, we present the variability and characteristics of dissolved organic matter at the fluvial–marine transition in the Laptev Sea from a unique dataset collected during 11 Arctic expeditions. We develop a new relationship between dissolved organic carbon (DOC) and coloured dissolved organic matter absorption, which is used to estimate surface water DOC concentration from space. We believe that our findings help current efforts to monitor ongoing changes in the Arctic carbon cycle.
In this article, we present the variability and characteristics of dissolved organic matter at...
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