Articles | Volume 14, issue 5
Research article
05 Oct 2018
Research article |  | 05 Oct 2018

Mean circulation and EKE distribution in the Labrador Sea Water level of the subpolar North Atlantic

Jürgen Fischer, Johannes Karstensen, Marilena Oltmanns, and Sunke Schmidtko

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Cited articles

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Avsic, T., Karstensen, J., Send, U., and Fischer, J.: Interannual variability of newly formed Labrador Sea Water from 1994 to 2005, Geophys. Res. Lett., 33, L21S02,, 2006. 
Bower, A. S., Lozier, M. S., Gary, S. F., and Böning, C. W.: Interior pathways of the North Atlantic meridional overturning circulation, Nature, 459, 243–247,, 2009. 
Brandt, P., Schott, F., Funk, A., und Sena Martins, C. : Seasonal to interannual variability of the eddy field in the Labrador Sea from satellite altimetry, J. Geophys. Res.-Oceans, 109, C02028,, 2004. 
Chelton, D. B., deSzoeke, R. A., Schlax, M. G., El Naggar, K., and Siwertz N.: Geographical Variability of the First Baroclinic Rossby Radius of Deformation, J. Phys. Oceanogr., 28, 433–460,<0433:GVOTFB>2.0.CO;2, 1998. 
Short summary
Based on nearly 17 years of profiling (Argo) float data, high-resolution (~ 25 km grid) maps of mean flow and eddy kinetic energy (EKE) were constructed for the intermediate to deep subpolar North Atlantic. Robust boundary currents along topographic slopes, mid-basin advective pathways, and stagnation regimes were identified. The ratio of mean flow vs. the square root of EKE indicates regions dominated by advection, and large regions in which eddy diffusion prevails.