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Articles | Volume 17, issue 1
Articles | Volume 17, issue 1
https://doi.org/10.5194/os-17-301-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/os-17-301-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 17, issue 1
Research article
 | 
17 Feb 2021
Research article |  | 17 Feb 2021

Diapycnal mixing across the photic zone of the NE Atlantic

Hans van Haren, Corina P. D. Brussaard, Loes J. A. Gerringa, Mathijs H. van Manen, Rob Middag, and Ruud Groenewegen

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Cited articles

Achterberg, E. P., Steigenberger, S., Klar, J. K., Browning, T. J., Marsay, C. M., Painter, S. C., Vieira, L. H., Baker, A. R., Hamilton, D. S., Tanhua, T., and Moore, C. M.: Trace element biogeochemistry in the high latitude North Atlantic Ocean: seasonal variations and volcanic inputs, Global Biogeochem. Cy., https://doi.org/10.1029/2020GB006674, in press, 2020. 
Alford, M. H. and Gregg, M. C.: Near-inertial mixing: Modulation of shear, strain and microstructure at low latitude, J. Geophys. Res., 106, 16947–16968, 2001. 
Charria, G., Theetten, S., Vandermeirsch, F., Yelekçi, Ö., and Audiffren, N.: Interannual evolution of (sub)mesoscale dynamics in the Bay of Biscay, Ocean Sci., 13, 777–797, https://doi.org/10.5194/os-13-777-2017, 2017. 
Cyr, F., Bourgault, D., Galbraith, P. S., and Gosselin, M.: Turbulent nitrate fluxes inthe Lower St. Lawrence Estuary, Canada, J. Geophys. Res., 120, 2308–2330, https://doi.org/10.1002/2014JC010272, 2015. 
De Baar, H. J. W., Timmermans, K. R., Laan, P., De Porto, H. H., Ober, S., Blom, J. J., Bakker, M. C., Schilling, J., Sarthou, G., Smit, M. G., and Klunder, M.: Titan: A new facility for ultraclean sampling of trace elements and isotopes in the deep oceans in the international Geotraces program, Mar. Chem., 111, 4–21, 2008. 
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Changes in ocean temperature may affect vertical density stratification, which may hamper turbulent exchange and thus nutrient availability for phytoplankton growth. To quantify varying physical conditions, we sampled the upper 500  m along 17 ± 5° W between [30, 63]°  N in summer. South to north, temperature decreased with stratification while turbulence and nutrient fluxes remained constant, likely due to internal waves breaking and little affected by the physical process of global warming.
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