HE14A:
Arctic-North Atlantic Connectivity: Variability, Changes, and Impacts of Freshwater and Heat Exchange III Posters
Session ID#: 84277
Session Description:
A two-way connectivity between the polar and subpolar basins realizing through salt and heat exchange between the Arctic Ocean and the subpolar North Atlantic is generally accepted. It is not fully understood yet at what time scales and to what extent the Arctic Ocean impacts the subpolar North Atlantic and how changes in the North Atlantic feedback to the Arctic Ocean. This problem is particularly important considering current rapid changes in the Arctic Ocean. Observations indicate a shift in the oceanic freshwater and heat content in the Arctic Ocean likely resulting in changes in oceanic fluxes to the subpolar seas. At the same time, recently observed changes in the subpolar seas, that are not obviously related to the Arctic export variations, may impact the heat input into the Arctic. Increasing Greenland runoff complicates the matter adding surplus freshwater into the subpolar North Atlantic. The goal of this session is to analyze present and future changes in the subpolar North Atlantic and their linkage to the Arctic Ocean fluxes as well as potential impact of the subpolar region on the Arctic Ocean via oceanic variability. This session solicits papers discussing observations and simulations of salt and heat transports between the Arctic Ocean and the North Atlantic; impacts of polar-subpolar fluxes on ocean circulation, convective mixing and water mass formation; biogeochemical impacts and marine ecosystem response to changing Arctic-North Atlantic fluxes; and identification and tracking of polar water, Greenland meltwater, and Atlantic water propagating in the polar and subpolar seas.
Co-Sponsor(s):
Primary Chair: Dmitry S Dukhovskoy, Florida State University, Tallahassee, FL, United States
Co-chairs: Igor Yashayaev, Bedford Institute of Oceanography, Fisheries and Oceans Canada, Dartmouth, NS, Canada, Laura de Steur, Norwegian Polar Institute, Tromsø, Norway and Kristina A Brown, Institute of Ocean Sciences, Sidney, Canada
Primary Liaison: Dmitry S Dukhovskoy, Florida State University, Tallahassee, FL, United States
Moderators: Laura de Steur, Royal Netherlands Institute for Sea Research, Physical Oceanography, Den Burg, Netherlands and Kristina A Brown, Institute of Ocean Sciences, Sidney, Canada
Student Paper Review Liaison: Laura de Steur, Royal Netherlands Institute for Sea Research, Physical Oceanography, Den Burg, Netherlands
Abstracts Submitted to this Session:
Can Mid-Fjord Temperatures be Forecast from Shelf Temperatures Outside of Sermilik Fjord, Greenland? (652547)
Empress El - Aton1,2, Fiammetta Straneo2, Margaret Ruth Lindeman3, Robert Sanchez2 and James Holte2, (1)University of California, Santa Cruz, Santa Cruz, CA, United States, (2)Scripps Institution of Oceanography, La Jolla, CA, United States, (3)Scripps Institution of Oceanography, La Jolla, United States
Evidence of a Slope Jet Transporting Dense Water toward the Faroe Bank Channel (643069)
Stefanie Semper1, Robert S Pickart2, Kjetil Våge1, Karin Margretha Husgard Larsen3, Bogi Hansen3 and Hjálmar Hátún3, (1)Geophysical Institute, University of Bergen and Bjerknes Centre for Climate Research, Bergen, Norway, (2)Woods Hole Oceanographic Institution, Woods Hole, MA, United States, (3)Faroe Marine Research Institute, Tórshavn, Faroe Islands
Exchange of water mass properties between the Greenland shelf and the surrounding subpolar North Atlantic (645135)
Kevin Wiegand1,2, Dagmar Kieke1 and Paul Glen Myers3, (1)University of Bremen, Bremen, Germany, (2)MARUM - University of Bremen, Bremen, Germany, (3)University of Alberta, Department of Earth and Atmospheric Sciences, Edmonton, AB, Canada
Greenland Meltwater in the Coastal Current System of Southern Greenland (646476)
Nicholas Beaird, Rutgers University, New Brunswick, United States, Fiammetta Straneo, Scripps Institution of Oceanography, La Jolla, CA, United States, Isabela Alexander-Astiz Le Bras, Woods Hole Oceanographic Inst, Woods Hole, MA, United States, Robert S Pickart, Woods Hole Oceanographic Institution, Woods Hole, MA, United States and William J Jenkins, WHOI, Woods Hole, MA, United States
How Similar Are Greenland Melting Signatures Observed in Model Simulations, Radar Altimetry and GRACE? (650648)
Sophie Stolzenberger1, Claudia Wekerle2, Roelof Rietbroek1 and Juergen Kusche1, (1)University of Bonn, Institute of Geodesy and Geoinformation, Bonn, Germany, (2)Alfred Wegener Institut, Climate Dynamics, Bremerhaven, Germany
Kinematic Structure and Dynamics of the Denmark Strait Overflow (642431)
Peigen Lin1, Robert S Pickart1, Kerstin Jochumsen2, Martin Moritz2, Kent Moore3, Hedinn Valdimarsson4 and Tim Fristedt5, (1)Woods Hole Oceanographic Institution, Woods Hole, MA, United States, (2)Federal Maritime and Hydrographic Agency (BSH), Hamburg, Germany, (3)University of Toronto, Toronto, ON, Canada, (4)Marine Research Institute, Reykjavik, Iceland, (5)Swedish Defence Research Agency (FOI), Stockholm, Sweden
Mechanisms governing the inter-annual variability of water properties on the south-east Greenland continental shelf. (651116)
Federica Facchinetti1,2, Fiammetta Straneo3, Doroteaciro Iovino4, James Holte3, Isabela Alexander-Astiz Le Bras3 and Simona Masina5, (1)Euro-Mediterranean Center on Climate Change, Bologna, Italy, (2)Ca' Foscari University, Venice, Italy, (3)Scripps Institution of Oceanography, La Jolla, CA, United States, (4)Euro-Mediterranean Center on Climate Change, Ocean Modeling and Data Assimilation Division, Bologna, Italy, (5)Euro-Mediterranean Center on Climate Change (CMCC), Italy
Seasonal Sea Ice Loss in Eastern Greenland (649810)
Alex Hamel1, Fiammetta Straneo1 and Lars Henrik Smedsrud2, (1)Scripps Institution of Oceanography, La Jolla, CA, United States, (2)Geophysical Institute, University of Bergen and Bjerknes Centre for Climate Research, Bergen, Norway
The nature and origin of monthly to seasonal hydrographic signals in the Denmark Strait Overflow (655502)
Jacob Opher1,2, J. Alexander Brearley1, Stephen Dye3, Ian Renfrew4, Robert S Pickart5, Michael Paul Meredith1 and Benjamin Harden6, (1)NERC British Antarctic Survey, Cambridge, United Kingdom, (2)University of East Anglia, Norwich, United Kingdom, (3)University of East Anglia, Centre for Ocean and Atmospheric Sciences, Norwich, United Kingdom, (4)University of East Anglia, School of Environmental Sciences, Norwich, United Kingdom, (5)Woods Hole Oceanographic Institution, Woods Hole, MA, United States, (6)Sea Education Institute, Woods Hole, MA, United States
