Efficient Flowline Simulations of Ice Shelf-Ocean Interactions: Sensitivity Studies with a Fully Coupled Model
Thermodynamic flowline and plume models for the ice shelf-ocean system simplify the ice and ocean dynamics sufficiently to allow extensive exploration of parameters affecting ice-sheet stability while including key physical processes. Comparison between geophysically and laboratory-based treatments...
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ftnasantrs:oai:casi.ntrs.nasa.gov:20140010286 2023-05-15T16:40:50+02:00 Efficient Flowline Simulations of Ice Shelf-Ocean Interactions: Sensitivity Studies with a Fully Coupled Model Jenkins, Adrian Nowicki, Sophie M. J. Alley, Richard B. Walker, Ryan Thomas Parizek, Byron R. Holland, David Unclassified, Unlimited, Publicly available October 2013 application/pdf http://hdl.handle.net/2060/20140010286 unknown Document ID: 20140010286 http://hdl.handle.net/2060/20140010286 Copyright, Distribution as joint owner in the copyright CASI Oceanography Meteorology and Climatology GSFC-E-DAA-TN10251 Journal of Physical Oceanography (American Meteorological Society); 43; 10; 2200–2210 2013 ftnasantrs 2019-07-21T06:14:17Z Thermodynamic flowline and plume models for the ice shelf-ocean system simplify the ice and ocean dynamics sufficiently to allow extensive exploration of parameters affecting ice-sheet stability while including key physical processes. Comparison between geophysically and laboratory-based treatments of ice-ocean interface thermodynamics shows reasonable agreement between calculated melt rates, except where steep basal slopes and relatively high ocean temperatures are present. Results are especially sensitive to the poorly known drag coefficient, highlighting the need for additional field experiments to constrain its value. These experiments also suggest that if the ice-ocean interface near the grounding line is steeper than some threshold, further steepening of the slope may drive higher entrainment that limits buoyancy, slowing the plume and reducing melting; if confirmed, this will provide a stabilizing feedback on ice sheets under some circumstances. Other/Unknown Material Ice Sheet Ice Shelf NASA Technical Reports Server (NTRS) |
institution |
Open Polar |
collection |
NASA Technical Reports Server (NTRS) |
op_collection_id |
ftnasantrs |
language |
unknown |
topic |
Oceanography Meteorology and Climatology |
spellingShingle |
Oceanography Meteorology and Climatology Jenkins, Adrian Nowicki, Sophie M. J. Alley, Richard B. Walker, Ryan Thomas Parizek, Byron R. Holland, David Efficient Flowline Simulations of Ice Shelf-Ocean Interactions: Sensitivity Studies with a Fully Coupled Model |
topic_facet |
Oceanography Meteorology and Climatology |
description |
Thermodynamic flowline and plume models for the ice shelf-ocean system simplify the ice and ocean dynamics sufficiently to allow extensive exploration of parameters affecting ice-sheet stability while including key physical processes. Comparison between geophysically and laboratory-based treatments of ice-ocean interface thermodynamics shows reasonable agreement between calculated melt rates, except where steep basal slopes and relatively high ocean temperatures are present. Results are especially sensitive to the poorly known drag coefficient, highlighting the need for additional field experiments to constrain its value. These experiments also suggest that if the ice-ocean interface near the grounding line is steeper than some threshold, further steepening of the slope may drive higher entrainment that limits buoyancy, slowing the plume and reducing melting; if confirmed, this will provide a stabilizing feedback on ice sheets under some circumstances. |
format |
Other/Unknown Material |
author |
Jenkins, Adrian Nowicki, Sophie M. J. Alley, Richard B. Walker, Ryan Thomas Parizek, Byron R. Holland, David |
author_facet |
Jenkins, Adrian Nowicki, Sophie M. J. Alley, Richard B. Walker, Ryan Thomas Parizek, Byron R. Holland, David |
author_sort |
Jenkins, Adrian |
title |
Efficient Flowline Simulations of Ice Shelf-Ocean Interactions: Sensitivity Studies with a Fully Coupled Model |
title_short |
Efficient Flowline Simulations of Ice Shelf-Ocean Interactions: Sensitivity Studies with a Fully Coupled Model |
title_full |
Efficient Flowline Simulations of Ice Shelf-Ocean Interactions: Sensitivity Studies with a Fully Coupled Model |
title_fullStr |
Efficient Flowline Simulations of Ice Shelf-Ocean Interactions: Sensitivity Studies with a Fully Coupled Model |
title_full_unstemmed |
Efficient Flowline Simulations of Ice Shelf-Ocean Interactions: Sensitivity Studies with a Fully Coupled Model |
title_sort |
efficient flowline simulations of ice shelf-ocean interactions: sensitivity studies with a fully coupled model |
publishDate |
2013 |
url |
http://hdl.handle.net/2060/20140010286 |
op_coverage |
Unclassified, Unlimited, Publicly available |
genre |
Ice Sheet Ice Shelf |
genre_facet |
Ice Sheet Ice Shelf |
op_source |
CASI |
op_relation |
Document ID: 20140010286 http://hdl.handle.net/2060/20140010286 |
op_rights |
Copyright, Distribution as joint owner in the copyright |
_version_ |
1766031258354188288 |