The relatively slow progress can partially be explained by the fact that improving sea ice simulation requires improvements in both the atmosphere and ocean components in addition to the sea ice component itself. (ipcc.ch)
Along with iESM, the ACME team has added enhancements to the land, atmosphere, and ocean components of their code. (sciencedaily.com)
Using two different coupled climate models with mixed - layer oceans, with and without OHT, along with a coupled model with a fixed - current ocean component in which the currents are uniformly reduced and increased by 50 %, an attempt is made to explain why this may happen. (gfdl.noaa.gov)