ISOMIP

ODU/CCPO contribution to the Ice Shelf-Ocean Model Intercomparison Project
(ISOMIP)

Project homepage at NYU.
The links below show model results from the Phase I: Idealized Numerical Model Experiment.

Model Details

Details of the numerical model (ROMS).

Latest Simulation Results:

Three versions of the Experiment 1 simulation will be run. The only difference between the three cases is the surface upon which the horizontal mixing is applied: Geopotential, Model Sigma Layer ("S") or Isopycnic.

Geopotential Mixing (Base Case):

Salinity N/S cross section through center (t = 3000d)

Meridional Overturning (t = 3000d)

Salinity N/S cross section through center (t = 10000d)

Temperature N/S cross section through center (t = 10000d)

Meridional Overturning (t = 10000d)

Barotropic Stream Function (t = 10000d)

Melt rate (t = 10000d)

S-Surface Mixing:

As can be seen in the cross-sections, the mixing along geopotential surfaces spreads the cold/fresh water from directly underneath the deeper parts of the ice surface further into the interior of the cavity than this simulation does. Early on (at 3000d), the meridional overturning is much weaker for this simulation than for the base case, but this difference is less dramatic at 10000d. The depth averaged horizontal circulation also differs between the simulations, but not as much as the overturning.