3-7 September 2018
Audimax | Kiel University
Europe/Berlin timezone

Ventilation variability of Labrador Sea Water and its impact on oxygen changes

Not scheduled
Audimax | Kiel University

Audimax | Kiel University

Christian-Albrechts-Platz 2 | 24118 Kiel | GERMANY
Poster 03 Ventilation and Oxygen Supply


Dr Ilaria Stendardo (University of Bremen)


In a recent review paper we provided an overview of the changes of Labrador Sea Water (LSW) from observations in the Labrador Sea and the southern boundary of the subpolar gyre along a transect at 47°N. The strong connection with reduction/intensification of convection and reduction/intensification of oxygen supply in the LSW, due to reduction/intensification of ventilation was showed for the time period 1996-2016. Intense and deep convection like the one in the early to mid-1990s in the Labrador Sea, produced thick, dense and well oxygenated LSW, while weak convection like the one in the following years (1997-2005) produced shallower, thinner and less oxygenated LSW. The latter time period deep convection was resumed and starting in winter 2013/2014 production of denser, thicker and more oxygenated LSW was resumed. All these changes can be followed with some delay in the western boundary currents at 47°N along the pathway of the LSW. On multi-decadal time scales climate models predicts a weakening of the Atlantic Meridional Overturning Circulation (AMOC), followed by a weakening of convection and thus deoxygenation of the LSW. Here we will extend the analysis by including the latest cruises in 2017 and 2018.

Position Postdoc
Affiliation University of Bremen
Email Address ilaria.stendardo@uni-bremen.de
Are you a SFB 754 / Future Ocean member? No

Primary author

Dr Ilaria Stendardo (University of Bremen)


Prof. Monika Rhein (University of Bremen) Dr Reiner Steinfeldt (University of Bremen) Dr Dagmar Kieke (University of Bremen)

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