Boundary layer turbulence below ice shelves in the shear-dominated regime

Add to your list(s) Download to your calendar using vCal

• Carolyn Begeman (Los Alamos National Laboratory)
• Wednesday 06 April 2022, 15:00-16:00
• https://ukri.zoom.us/j/99471476617;BAS seminar room 330b.

If you have a question about this talk, please contact Dr. Shenjie Zhou.

Large-eddy simulations have been a fruitful tool for studying ocean turbulence in the ice ocean boundary layer of sea ice and ice shelves. In this study, we used large-eddy simulations to examine the ice-shelf ocean boundary layer in a regime in which shear controls the rate of melting, modulated by stable stratification. Here, I focus on the turbulence characteristics, boundary layer structure, and melt rate as thermal driving and ice-shelf basal slope vary. I consider commonly-used parameterizations of ice-shelf melting and show that the melt rate scales approximately linearly with thermal driving, as parameterized, but mixing efficiency increases with basal slope, which is not parameterized. I close with some perspectives on using coarse-resolution models for ice-shelf melt projections.

This talk is part of the British Antarctic Survey - Polar Oceans seminar series series.

This talk is included in these lists:

• All Talks (aka the CURE list)
• Biology
• British Antarctic Survey
• Cambridge Environment
• Climate Science Seminars within Cambridge
• Featured lists
• Life Sciences
• Life Sciences
• ME Seminar
• Queens' College Politics Society
• School of Physical Sciences
• Talks related to atmosphere and ocean dynamics and climate science
• https://ukri.zoom.us/j/99471476617;BAS seminar room 330b
• my_list
• ob366-ai4er
• other talks

Note that ex-directory lists are not shown.