3548860
doi
10.5281/zenodo.3548860
oai:zenodo.org:3548860
user-atlas
user-eu
Spooner, Peter
University College London
ATLAS Deliverable 1.3: Recent AMOC and N Atlantic gyre properties and dynamics
Thornalley, David
University College London
info:eu-repo/semantics/openAccess
Creative Commons Attribution 4.0 International
https://creativecommons.org/licenses/by/4.0/legalcode
<p>One of the goals of ATLAS is to examine how changing circulation in the North Atlantic has affected deep-sea marine ecosystems. Strong motivation for this comes from recent instrumental-based data showing a weakening of the large-scale overturning circulation of the Atlantic from 2004 onwards (Srokosz & Bryden, 2015). As part of WP1 Objective 1, ATLAS has undertaken analysis of high resolution proxy archives of circulation over multi-decadal to centennial timescales, providing longer term context for currently observed variability. There are two dominant large-scale features of ocean circulation in the North Atlantic that potentially influence the case study sites of ATLAS:<br>
(1) The Atlantic Meridional overturning Circulation (AMOC)<br>
(2) The Subpolar Gyre (SPG) circulation.<br>
The AMOC is comprised of northward transport of warm surface and thermocline waters, and their deep southward return flow as dense waters that formed by cooling processes and sinking at high latitudes (Fig. 1). As well as the vertically overturning of the North Atlantic, there is also horizontal circulation linked to surface ocean currents. An anti-clockwise circulation of surface currents in the northern North Atlantic forms the SPG. ATLAS work led by UCL has helped constrain the recent behaviour of these two large-scale circulation systems (Thornalley et al., 2018 & in prep.; Spooner et al., in prep).</p>
Zenodo
2019-11-20
info:eu-repo/semantics/report
3548859
user-atlas
user-eu
award_title=A Trans-AtLantic Assessment and deep-water ecosystem-based Spatial management plan for Europe; award_number=678760; award_identifiers_scheme=url; award_identifiers_identifier=https://cordis.europa.eu/projects/678760; funder_id=00k4n6c32; funder_name=European Commission;
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md5:a020863e1fe9966ff92a1c97b4851f96
https://zenodo.org/records/3548860/files/D1.3_final.pdf
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