HE21A:
Marginal Ice Zone Processes I


Session ID#: 11370

Session Description:
Rapid decline in Arctic summertime sea ice extent has produced extensive seasonal ice zones, where broad marginal ice zones separate pack ice from open water.  This session focuses on the processes that control evolution of the marginal ice zone and the potential changes that may accompany increased seasonality of sea ice.  The complex interplay between ice, ocean and atmospheric processes, and the potentially strong feedbacks among them, modulate sea ice melt and the transfer of momentum and buoyancy into the upper ocean. For example the influence of wind, waves and passing storms drives highly variable floe size distributions, which impact melt or formation rates of sea ice, momentum and heat transfer, light fields and phytoplankton productivity. In particular, the relative importance of wave attenuation and scattering in an increasing wave climate remains unknown.  Similarly, increased areas of open water may lead to stronger coupling between atmosphere and ocean, internal wave generation and elevated upper-ocean mixing.  This session invites presentations that describe observational, experimental, theoretical and numerical investigations of MIZ processes in both the Arctic and Antarctic.
Primary Chair:  Craig Lee, Univ Washington, Seattle, WA, United States
Chairs:  James M Thomson, Applied Physics Laboratory University of Washington, Seattle, WA, United States, Jeremy Wilkinson, NERC British Antarctic Survey, Cambridge, United Kingdom and Martin O. Jeffries, Office of Naval Research, Arlington, VA, United States
Moderators:  Craig Lee, Organization Not Listed, Washington, DC, United States and Martin O. Jeffries, Office of Naval Research, Arlington, VA, United States
Student Paper Review Liaisons:  Jeremy Wilkinson, NERC British Antarctic Survey, Cambridge, United Kingdom and Sylvia T Cole, Woods Hole Oceanographic Institution, Woods Hole, MA, United States
Index Terms:

4540 Ice mechanics and air/sea/ice exchange processes [OCEANOGRAPHY: PHYSICAL]
4572 Upper ocean and mixed layer processes [OCEANOGRAPHY: PHYSICAL]
9310 Antarctica [GEOGRAPHIC LOCATION]
9315 Arctic region [GEOGRAPHIC LOCATION]
Co-Sponsor(s):
  • A - Air-sea Interactions and Upper Ocean Processes
  • PO - Physical Oceanography/Ocean Circulation

Abstracts Submitted to this Session:

HE21A-01
Toward Process Resolving Modeling of the Arctic Marginal Ice Zone (93825)
Wieslaw Maslowski1, Robert Osinski2, Dominic DiMaggio1, Andrew Roberts1 and Jaclyn L Clement Kinney1, (1)Naval Postgraduate School, Monterey, CA, United States, (2)Institute of Oceanology Polish Academy of Sciences, Sopot, Poland
HE21A-02
Accuracy of short term Sea Ice Forecasts using the Marginal Ice Zone Modeling and Assimilation System (MIZMAS) (92456)
Axel J B Schweiger, Applied Physics Laboratory University of Washington, Polar Science Center, Seattle, WA, United States and Jinlun Zhang, University of Washington, Polar Science Center, Applied Physics Laboratory, Seattle, WA, United States
HE21A-03
Quantifying the Evolution of Melt Ponds in the Marginal Ice Zone Using High Resolution Optical Imagery and Neural Networks (88035)
Macarena Ortiz, University Space Research Association, Hampton, VA, United States, Juan C Pinales, University of Miami, Miami, FL, United States, Hans Christian Graber, University of Miami, Rosenstiel School of Marine and Atmospheric Science, Miami, FL, United States, Jeremy Wilkinson, NERC British Antarctic Survey, Cambridge, United Kingdom and Bjoern Lund, Univ of Miami, Miami, FL, United States
HE21A-04
Waves in the Beaufort Sea MIZ observed with a dense and persistent array of wavebuoys from spring to autumn 2014 (90285)
Martin J Doble, Organization Not Listed, Washington, DC, United States, Jeremy Wilkinson, NERC British Antarctic Survey, Cambridge, United Kingdom, James M Thomson, Applied Physics Laboratory University of Washington, Seattle, WA, United States and Peter Wadhams, University of Cambridge, Cambridge, United Kingdom
HE21A-05
The Role of Late Summer Melt Pond Water Layers in the Ocean Mixed Layer on Enhancing Ice/Ocean Albedo Feedbacks in the Arctic (89085)
Timothy P Stanton, Naval Postgraduate School, Oceanography, Monterey, CA, United States and William J Shaw, Naval Postgraduate School, Monterey, CA, United States
HE21A-06
Upper Ocean Evolution Across the Beaufort Sea Marginal Ice Zone from Autonomous Gliders (91864)
Craig Lee1, Luc Rainville1 and Mary Jane Perry2, (1)Applied Physics Laboratory, University of Washington, Seattle, WA, United States, (2)University of Maine, Orono, ME, United States
HE21A-07
Internal Waves and Mixing in the Marginal Ice Zone from Ice-Tethered Profilers with Velocity (88919)
Sylvia T Cole, Woods Hole Oceanographic Institution, Woods Hole, MA, United States and John Merrill Toole, WHOI, Woods Hole, MA, United States
HE21A-08
Physical and ecological processes at a moving ice edge in the Fram Strait as observed with an AUV. (90104)
Thorben Wulff, Wilken-Jon von Appen and Eduard Bauerfeind, Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Bremerhaven, Germany
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