HE24B:
Linkages Among Changes in Physical and Biogeochemical Processes in the Eurasian Sector of the Arctic Ocean Posters


Session ID#: 27518

Session Description:
Marked changes in the eastern Eurasian Basin have occurred in the last few years, including a reduced stratification due to a weak (or absent) cold halocline layer, shoaling of the Atlantic layer and increased winter ventilation of the ocean interior, and a reduction in the sea ice cover that rivals the large losses observed in the Chukchi Sea and Canada Basin. These changes represent a transition of the Arctic to a new, more dynamic climate state, with the eastern Eurasian Basin becoming more structurally similar to the western Eurasian Basin. These ongoing changes have important implications for physical (e.g., heat budget, sea ice cover) and biogeochemical (e.g., nutrient availability, primary production, carbon cycling) processes in the Eurasian sector of the Arctic Ocean.

We invite abstracts that explore changes to the physical and/or biogeochemical processes of the Eurasian Basin as well as the links and feedbacks between these processes such that present and future change in this region of the Arctic Ocean may be better understood and predicted. We welcome submissions based on observations, models, and a combination of the two. While abstracts may focus on physical, biological, or chemical processes, we particularly encourage interdisciplinary submissions.

Primary Chair:  Matthew Buckley Alkire, University of Washington Seattle Campus, Seattle, WA, United States
Co-chairs:  Igor Polyakov, Andrey Pnyushkov and Robert Rember, University of Alaska Fairbanks, Fairbanks, AK, United States
Moderators:  Matthew Buckley Alkire, University of Washington, Applied Physics Lab, Seatle, OR, United States and Till Baumann, University of Alaska Fairbanks, Fairbanks, AK, United States
Student Paper Review Liaison:  Matthew Buckley Alkire, University of Washington, Applied Physics Lab, Seatle, OR, United States
Index Terms:

1635 Oceans [GLOBAL CHANGE]
4207 Arctic and Antarctic oceanography [OCEANOGRAPHY: GENERAL]
4273 Physical and biogeochemical interactions [OCEANOGRAPHY: GENERAL]
4805 Biogeochemical cycles, processes, and modeling [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
Cross-Topics:
  • BN - Biogeochemistry and Nutrients
  • CT - Chemical Tracers, Organic Matter and Trace Elements
  • PO - Physical Oceanography: Other

Abstracts Submitted to this Session:

Linkages between meteoric water and coloured dissolved organic matter (CDOM) distributions in the Eurasian Arctic Ocean. (323601)
Heather E Reader1,2, Dorothea Bauch3, Mats A Granskog4, Benjamin Rabe5 and Colin A Stedmon1, (1)Technical University of Denmark, National Institute for Aquatic Resources, Kgs. Lyngby, Denmark, (2)University of Calgary, Environmental Sciences Program, Calgary, AB, Canada, (3)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, (4)Norwegian Polar Institute, Tromsø, Norway, (5)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Bremerhaven, Germany
Pan-Arctic distribution and reactivity of terrigenous dissolved organic carbon in Arctic watersheds and the Arctic Ocean (326278)
Karl Kaiser, Texas A&M University at Galveston, Marine Sciences, Galveston, TX, United States, Ronald H Benner, University of South Carolina, Marine Science Program and Department of Biological Sciences, Columbia, SC, United States, Ge Yan, Texas A&M University at Galveston, Marine Science, Galveston, TX, United States and Rainer M W Amon, Texas A & M University College Station, College Station, TX, United States
Application of a Novel Ultra-Low-Volume Lignin Analysis Method to Study the Removal and Transport of Terrigenous Dissolved Organic Carbon in the Arctic Ocean (325317)
Ge Yan1, Karl Kaiser1 and Rainer M W Amon2, (1)Texas A & M University at Galveston, Marine Sciences, Galveston, TX, United States, (2)Texas A & M University College Station, College Station, TX, United States
Bio-optics of an extensive under-ice phytoplankton bloom in the Atlantic sector of the Arctic Ocean (310713)
Alexey K Pavlov1, Hanna Kauko2, Torbjørn Taskjelle3, Børge Hamre3, Phillip Assmy4, Piotr Kowalczuk5, Pedro Duarte2, Colin A Stedmon6 and Mats A Granskog1, (1)Norwegian Polar Institute, Tromsø, Norway, (2)Norwegian Polar Institute, Biological Oceanography, Tromsø, Norway, (3)University of Bergen, Department of Physics and Technology, Bergen, Norway, (4)Norwegian Polar Institute, Biological Oceanography, Norway, (5)Institute of Oceanology, Polish Academy of Sciences, Marine Physics Department, Sopot, Poland, (6)Technical University of Denmark, National Institute for Aquatic Resources, Kgs. Lyngby, Denmark
Critical role of snow on sea ice growth in the Atlantic sector of the Arctic Ocean (306325)
Ioanna Merkouriadi1, Bin Cheng2, Robert M. Graham1, Anja Rösel1 and Mats A Granskog1, (1)Norwegian Polar Institute, Tromsø, Norway, (2)Finnish Meteorological Institute, Helsinki, Finland
Evidence for three distinct hydrographic seasonal cycles at the continental slope of the eastern Eurasian Basin of the Arctic Ocean (303926)
Till Baumann1, Igor Polyakov2, Andrey Pnyushkov1, Robert Rember1, Ilona Goszczko3, Matthew Buckley Alkire4, Vladimir Ivanov5 and Eddy Carmack6, (1)University of Alaska Fairbanks, Fairbanks, AK, United States, (2)Univ Alaska Fairbanks, Fairbanks, AK, United States, (3)IO PAS, Sopot, Poland, (4)Polar Science Ctr, Seattle, WA, United States, (5)Arctic and Antarctic Research Institute, St.Petersburg, Russia, (6)Fisheries and Oceans Canada, Institute of Ocean Sciences, Sidney, BC, Canada
Evidence Supporting Halocline Water Formation and Modification in the East Siberian Sea (305039)
Matthew Buckley Alkire1, Igor Polyakov2, Robert Rember3, Andrey Pnyushkov3 and Vladimir Ivanov4, (1)University of Washington Seattle Campus, Seattle, WA, United States, (2)Univ Alaska Fairbanks, Fairbanks, AK, United States, (3)University of Alaska Fairbanks, Fairbanks, AK, United States, (4)Arctic and Antarctic Research Institute, St.Petersburg, Russia

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