HE21A:
Freshwater Fluxes in the Arctic Ocean: North Atlantic Climate System I


Session ID#: 37010

Session Description:
Oceanic and sea ice freshwater fluxes in the Arctic Ocean – North Atlantic climate system impact thermohaline and convective processes, with far-reaching influence on climate. Increased freshwater fluxes to the Arctic Ocean along with the wind-driven anticyclonic circulation have resulted in growing freshwater content in the Beaufort Gyre. There is no observational evidence of significant changes in freshwater fluxes between the Arctic Ocean and the North Atlantic. Yet freshwater flux from the Greenland Ice Sheet is clearly increasing and may be impacting thermohaline processes in the North Atlantic. It is a priority to discern the driving mechanisms, the role and consequences of changing freshwater fluxes into the Arctic Ocean and North Atlantic. This session solicits papers addressing issues related to oceanic freshwater fluxes (liquid and sea ice) in the Arctic Ocean – North Atlantic climate system. Possible topics include: Propagation mechanisms, pathways and time scales of fresh water anomalies; residence time of fresh water; impacts of changes to the cryosphere; the role of freshwater in the future Arctic climate; the sensitivity of thermohaline circulation to freshwater fluxes; the relationship between sea ice and freshwater content in the ocean; and, biological and environmental consequences of increased freshwater fluxes.
Primary Chair:  Dmitry S Dukhovskoy, Florida State University, Tallahassee, FL, United States
Co-chairs:  Paul Glen Myers, University of Alberta, Edmonton, AB, Canada, Camille Lique, Laboratoire d'Océanographie Physique et Spatiale, IUEM, Plouzané, France and Thomas W N Haine, Johns Hopkins University, Department of Earth & Planetary Sciences, Baltimore, MD, United States
Moderators:  Dmitry S Dukhovskoy, Florida State University, Tallahassee, FL, United States, Camille Lique, Laboratoire d'Océanographie Physique et Spatiale, IUEM, Plouzané, France, Paul Glen Myers, University of Alberta, Edmonton, AB, Canada and Thomas W N Haine, Johns Hopkins University, Department of Earth & Planetary Sciences, Baltimore, MD, United States
Student Paper Review Liaisons:  Dmitry S Dukhovskoy, Florida State University, Tallahassee, FL, United States and Paul Glen Myers, University of Alberta, Edmonton, AB, Canada
Index Terms:

1621 Cryospheric change [GLOBAL CHANGE]
1635 Oceans [GLOBAL CHANGE]
4207 Arctic and Antarctic oceanography [OCEANOGRAPHY: GENERAL]
4215 Climate and interannual variability [OCEANOGRAPHY: GENERAL]
Cross-Topics:
  • PC - Past, Present and Future Climate
  • PL - Physical Oceanography: Mesoscale and Larger
  • PO - Physical Oceanography: Other

Abstracts Submitted to this Session:

Observational Evidence of Multi-Decadal Changes in Arctic Freshwater Transport to the Subpolar North Atlantic (313117)
Cristian Florindo-Lopez1, Naomi P Holliday1, Sheldon Bacon1, Yevgeny Aksenov1 and Eugene Colbourne2, (1)National Oceanography Centre, Southampton, United Kingdom, (2)Fisheries and Oceans Canada, Northwest Atlantic Fisheries Centre, St. John's, NF, Canada
Internal Variability in the Arctic Freshwater Budget as Simulated by the CESM Large Ensemble (321495)
Rory Laiho, University of Colorado Boulder, Boulder, CO, United States and Alexandra Jahn, University of Colorado at Boulder, Boulder, CO, United States
Causes and Consequences of Beaufort Gyre Freshwater Content Changes in 2003-2017 (303087)
Andrey Yu Proshutinsky, Woods Hole Oceanographic Institution, Physical Oceanography, Woods Hole, MA, United States, Richard A Krishfield, Woods Hole Oceanographic Institution, Woods Hole, MA, United States, Mary-Louise Timmermans, Yale University, New Haven, CT, United States and William James Williams, Fisheries and Oceans Canada, Institute of Ocean Sciences, Sidney, BC, Canada
On the Overturning in the Iceland Sea (258205)
Robert S Pickart1, Michael A Spall2, Daniel J Torres2, Kjetil Våge3, Hedinn Valdimarsson4, Kent Moore5 and Steingrimur Jonsson4, (1)Woods Hole Oceanographic Institution, Physical Oceanography, Woods Hole, MA, United States, (2)WHOI, Woods Hole, MA, United States, (3)University of Bergen, Bergen, Norway, (4)Marine Research Institute, Reykjavik, Iceland, (5)Univ Toronto, Toronto, ON, Canada

See more of: High Latitude Environments