Effects of Rheology and Ice Thickness Distribution in a Dynamic––Thermodynamic Sea Ice Model
Effects of Rheology and Ice Thickness Distribution in a Dynamic––Thermodynamic Sea Ice Model Arbetter, T. E.; Curry, J. A.; Maslanik, J. A. 1997-09-12 00:00:00 Realistic treatment of sea ice processes in general circulation models is needed to simulate properly global climate and climate change scenarios. As new sea ice treatments become available, it is necessary to evaluate them in terms of their accuracy and computational time. Here, several dynamic ice models are compared using both a 2-category and 28-category ice thickness distribution. Simulations are conducted under normal wind forcing, as well as under increased and decreased wind speeds. It is found that the lack of a shear strength parameterization in the cavitating fluid rheology produces significantly different results in both ice thickness and ice velocity than those produced by an elliptical rheology. Furthermore, use of a 28-category ice thickness distribution amplifies differences in the responses of the various models. While the choice of dynamic model is governed by requirements of accuracy and implementation, it appears that, in terms of both parameterization of physical properties and computational time, the elliptical rheology is well-suited for inclusion in a GCM. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Physical Oceanography American Meteorological Society http://www.deepdyve.com/lp/american-meteorological-society/effects-of-rheology-and-ice-thickness-distribution-in-a-dynamic-LbkD4S1nXd
Arbetter, T. E.; Curry, J. A.; Maslanik, J. A.
, Volume 29 (10) – Sep 12, 1997
/lp/american-meteorological-society/effects-of-rheology-and-ice-thickness-distribution-in-a-dynamic-LbkD4S1nXd
Journal of Physical Oceanography /
Volume 29 Issue 10
Earth and Planetary Sciences /
Copyright © 1997 American Meteorological Society
10.1175/1520-0485(1999)029<2656:EORAIT>2.0.CO;2
Realistic treatment of sea ice processes in general circulation models is needed to simulate properly global climate and climate change scenarios. As new sea ice treatments become available, it is necessary to evaluate them in terms of their accuracy and computational time. Here, several dynamic ice models are compared using both a 2-category and 28-category ice thickness distribution. Simulations are conducted under normal wind forcing, as well as under increased and decreased wind speeds. It is found that the lack of a shear strength parameterization in the cavitating fluid rheology produces significantly different results in both ice thickness and ice velocity than those produced by an elliptical rheology. Furthermore, use of a 28-category ice thickness distribution amplifies differences in the responses of the various models. While the choice of dynamic model is governed by requirements of accuracy and implementation, it appears that, in terms of both parameterization of physical properties and computational time, the elliptical rheology is well-suited for inclusion in a GCM.
Journal of Physical Oceanography – American Meteorological Society
Arbetter, T., Curry, J., & Maslanik, J. (1997). Effects of Rheology and Ice Thickness Distribution in a Dynamic––Thermodynamic Sea Ice Model. Journal of Physical Oceanography, 29(10), 2656-2670.
Arbetter, T. E., J. A. Curry, and J. A. Maslanik. "Effects of Rheology and Ice Thickness Distribution in a Dynamic––Thermodynamic Sea Ice Model." Journal of Physical Oceanography 29.10 (1997): 2656-2670.