| 1 |
\begin{abstract} |
\begin{abstract} |
| 2 |
|
|
| 3 |
As part of ongoing efforts to obtain a best possible synthesis of most |
This paper describes a sea-ice model that has been developed for coupled |
| 4 |
available, global-scale, ocean and sea ice data, a dynamic and thermodynamic |
ocean and sea-ice state estimation. This sea ice model includes both |
| 5 |
sea-ice model has been coupled to the Massachusetts Institute of Technology |
forward and adjoint counterparts. The forward model borrows many components |
| 6 |
general circulation model (MITgcm). Ice mechanics follow a viscous plastic |
from current-generation sea ice models but these components are reformulated |
| 7 |
rheology and the ice momentum equations are solved numerically using either |
on an Arakawa C grid in order to match the MITgcm oceanic grid and they are |
| 8 |
line successive relaxation (LSR) or elastic-viscous-plastic (EVP) dynamic |
modified in many ways to permit efficient and accurate automatic |
| 9 |
models. Ice thermodynamics are represented using either a zero-heat-capacity |
differentiation. Ice mechanics follow a viscous-plastic rheology and the ice |
| 10 |
formulation or a two-layer formulation that conserves enthalpy. The model |
momentum equations are solved numerically using either |
| 11 |
includes prognostic variables for snow and for sea-ice salinity. The above |
line-successive-relaxation (LSR) or elastic-viscous-plastic (EVP) dynamic |
| 12 |
sea ice model components were borrowed from current-generation climate models |
models. Ice thermodynamics are represented using either a |
| 13 |
but they were reformulated on an Arakawa C-grid in order to match the MITgcm |
zero-heat-capacity formulation or a two-layer formulation that conserves |
| 14 |
oceanic grid and they were modified in many ways to permit efficient and |
enthalpy. The model includes prognostic variables for snow and for sea-ice |
| 15 |
accurate automatic differentiation. This paper describes the MITgcm sea ice |
salinity, several different formulation of ice-ocean stress, and the option |
| 16 |
model; it presents example Arctic and Antarctic results from a realistic, |
to use sophisticated conservative advection schemes with flux limiting. |
| 17 |
eddy-permitting, global ocean and sea-ice configuration; it compares B-grid |
|
| 18 |
and C-grid dynamic solvers in a regional Arctic configuration; and it presents |
This paper illustrates the utilization of the forward and adjoint |
| 19 |
example results from coupled ocean and sea-ice adjoint-model integrations. |
counterparts via exploration of forward and adjoint model sensitivities to |
| 20 |
|
littoral interactions in the Canadian Arctic Archipelago. [SOME CONCLUSIONS |
| 21 |
|
TO BE ADDED HERE.] |
| 22 |
|
|
| 23 |
\end{abstract} |
\end{abstract} |
Parent Directory
| 
Revision Log
| 
Revision Graph
| 
Patch