Toward a high-resolution coupled ocean-sea ice model

• Main Authors: Heil, P, Roberts, JL, Phipps, SJ, Fiedler, R, Bindoff, NL
• Format: Conference Object
• Language: English
• Published: - 2003
• Subjects: Earth Sciences; Oceanography; Oceanography not elsewhere classified; Sea ice
• Online Access: http://ecite.utas.edu.au/104743

This paper reports on the implementation of a novel numerical code of a coupledocean-ice model using an existing ocean code and a revised sea-ice code. The numerical coupling is afforded by the OASIS coupler (CERFACS). All data exchangebetween the sub-models is strictly limited to the coupler. The coupler representshigh-level processes with the sub-models being executed as directed by the coupler.Details of the model physics, their numerical implementation and setup as well asinformation on the coupling strategy are presented here.Initial tests on the sub-models and the coupler configuration showed that both theocean and the sea-ice model codes scale well with increasing number of CPUs. Wealso show that the overhead due to the explicit numerical coupler are small comparedto the overall compute requirements of the sub-models.