Other
Scientific paper
May 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005georl..3210616m&link_type=abstract
Geophysical Research Letters, Volume 32, Issue 10, CiteID L10616
Other
6
Cryosphere: Sea Ice (4540), Cryosphere: Remote Sensing, Cryosphere: Dynamics, Oceanography: Physical: Ice Mechanics And Air/Sea/Ice Exchange Processes (0700, 0750, 0752, 0754), Oceanography: Physical: Eddies And Mesoscale Processes
Scientific paper
High-resolution radar imagery shows that the dynamic response of winter sea ice to gradients in large-scale surface wind stress is often localized along quasi-linear fractures hundreds of kilometers long. Relative shearing motion across these narrow fractures can exceed 10 cm s-1. In one event recorded during the drift of the SHEBA ice camp, we observed an intense zone of pycnocline upwelling (~14 m) associated with significant shear motion near the camp, while upward turbulent heat flux in the ocean boundary layer reached nearly 400 W m-2, an order of magnitude greater than at any other time during the year-long drift. We attribute the upwelling to Ekman pumping associated with concentrated ice shear. Over the entire Arctic Ocean sea ice cover, this process could be responsible for significant heat exchange between the cold surface layer and warmer subsurface water at the ubiquitous fractures resulting from large-scale atmosphere-ice interactions.
Coon Max
Kwok Ron
McPhee Miles G.
Robins R.
No associations
LandOfFree
Upwelling of Arctic pycnocline associated with shear motion of sea ice does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Upwelling of Arctic pycnocline associated with shear motion of sea ice, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Upwelling of Arctic pycnocline associated with shear motion of sea ice will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1435180