PO53A:
Climate Trends, Hydrographic Variability, Circulation, and Air-Land-Sea Interactions in the Marginal Seas of the North Atlantic II


Session ID#: 11481

Session Description:
The regional scope of the session includes North Atlantic seas (e.g., Labrador Sea, Irminger Sea, Iceland Basin) and semi-enclosed basins (e.g., Gulf of Main, Gulf of Saint Laurence, Newfoundland Basin, Hudson Bay, Baffin Bay), each showing strong annual, interannual and multidecadal variability and interacting with open ocean. The processes responsible for these changes and interactions may have atmospheric (e.g., varying cumulative heat losses driving winter convection in the Labrador Sea), terrestrial (e.g., varying fluvial and glacial discharge) and oceanic (e.g., advection of heat and salt, sea level rise) origin or nature. In turn, the forcing mechanism may be triggered by natural variability or anthropogenic factors. Each region, subregion or layer may show some characteristics of changes found elsewhere or act differently, including acceleration of dominant trends if not shifts between modal states. The session will present an opportunity to relate these findings and identify key points, processes and scales associated with the largest signals which are likely to influence many aspects of societal life. Interdisciplinary presentations, syntheses of existing sources of oceanographic information including, but not limited to, vessel and profiling float observations, moored and remote sensing data, comparisons of model simulations and observations are cordially invited.
Primary Chair:  Igor Yashayaev, Bedford Institute of Oceanography, Fisheries and Oceans Canada, Dartmouth, NS, Canada
Chairs:  Oleg Saenko, Canadian Centre for Climate Modelling and Analysis, Victoria, BC, Canada, Alexander E Yankovsky, University of South Carolina Columbia, Columbia, SC, United States and Barry A Klinger, George Mason University Fairfax, Fairfax, VA, United States
Moderators:  Igor Yashayaev, Bedford Institute of Oceanography, Fisheries and Oceans Canada, Dartmouth, NS, Canada and Alexander E Yankovsky, University of South Carolina Columbia, Columbia, SC, United States
Student Paper Review Liaison:  Alexander E Yankovsky, University of South Carolina Columbia, Columbia, SC, United States
Index Terms:

4512 Currents [OCEANOGRAPHY: PHYSICAL]
4513 Decadal ocean variability [OCEANOGRAPHY: PHYSICAL]
4534 Hydrodynamic modeling [OCEANOGRAPHY: PHYSICAL]
4536 Hydrography and tracers [OCEANOGRAPHY: PHYSICAL]
Co-Sponsor(s):
  • A - Air-sea Interactions and Upper Ocean Processes
  • EC - Estuarine and Coastal
  • ME - Marine Ecosystems
  • PC - Past, Present and Future Climate

Abstracts Submitted to this Session:

PO53A-01
Ocean response to decadal shifts in the air-sea interaction over the North Atlantic (91801)
Entcho K Demirov, Memorial University of Newfoundland, Newfoundland, Canada and Tristan Hauser, University of Cape Town, Environmental and Geographical Sciences, Cape Town, South Africa
PO53A-02
Pathways of Atlantic Subpolar Heat Uptake (92744)
Barry A Klinger and Oluwayemi A. Garuba, George Mason University Fairfax, Fairfax, VA, United States
PO53A-03
The spreading of Labrador Sea Water from the Labrador Sea to the Newfoundland Basin (90925)
Dagmar Kieke1, Kerstin Jochumsen2, Linn Schneider1, Igor Yashayaev3, Blair J W Greenan4, Nuno Serra2, Eugene Colbourne5, Monika Rhein6, Eirini Varotsou2 and Reiner Steinfeldt6, (1)University of Bremen, Bremen, Germany, (2)Universitat Hamburg, Hamburg, Germany, (3)Bedford Institute of Oceanography, Fisheries and Oceans Canada, Dartmouth, NS, Canada, (4)Bedford Institute of Oceanography, Dartmouth, NS, Canada, (5)Fisheries and Oceans Canada, Northwest Atlantic Fisheries Centre, St. John's, NF, Canada, (6)University of Bremen, Institute of Environmental Physics, Bremen, Germany
PO53A-04
Impact of Changing Boundary Current Properties on Deep Water Formation in the Central Labrador Sea (90179)
Renske Gelderloos, Johns Hopkins University, Baltimore, MD, United States, Rebecca Caitlin Frew, University of Reading, Reading, RG6, United Kingdom and Helen Johnson, University of Oxford, Oxford, United Kingdom
PO53A-05
Observations and causes of hydrographic variability in den deep western boundary current at the exit of the Labrador Se (89335)
Johannes Karstensen1, Till Baumann2, Jürgen Fischer1, Martin Visbeck3 and Rainer Zantopp4, (1)GEOMAR Helmholtz Centre for Ocean Research, Kiel, Kiel, Germany, (2)University of Alaska Fairbanks, Fairbanks, AK, United States, (3)University of Kiel, Kiel, Germany, (4)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
PO53A-06
Observations of circulation and transport in the northwestern subpolar North Atlantic (90870)
Christian Mertens1, Monika Rhein2, Maren Walter1, Dagmar Kieke1 and Reiner Steinfeldt2, (1)University of Bremen, Bremen, Germany, (2)University of Bremen, Institute of Environmental Physics, Bremen, Germany
PO53A-07
Validation and Analysis of Ocean Variability in the North Atlantic Subpolar Gyre Simulated by a High-resolution CONCEPTS Regional Model (92136)
Simon Higginson1, Jean-Philippe Paquin1, Youyu Lu2, Fraser J M Davidson3, Frederic Dupont4 and Gregory Smith5, (1)Bedford Institute of Oceanography, Dartmouth, NS, Canada, (2)Bedford Inst of Oceanography, Dartmouth, NS, Canada, (3)Northwest Atlantic Fisheries Centre, Fisheries and Oceans Canada, St. John's, NF, Canada, (4)Environment and Climate Change Canada, Dorval, QC, Canada, (5)Environment Canada, Dorval, QC, Canada
PO53A-08
Eddy-induced Temperature Exchange between the Subpolar and the Subtropical Gyre of the North Atlantic (89942)
Vasco Müller1, Dagmar Kieke2, Paul Glen Myers3, Christian Mertens2 and Clark William Pennelly4, (1)University of Bremen, MARUM - Center for Marine Environmental Sciences, Bremen, Germany, (2)University of Bremen, Bremen, Germany, (3)University of Alberta, Edmonton, AB, Canada, (4)University of Alberta, Earth and Atmospheric Sciences, Edmonton, AB, Canada
See more of: Physical Oceanography/Ocean Circulation