Arctic Cap Nowcast/Forecast Model 30 Day Sea Ice Speed and Drift Animation

ACNFS is a coupled sea ice and ocean model that nowcasts and forecasts conditions in all sea ice covered areas in the northern hemisphere (poleward of 40 N). In ACNFS, Community Ice CodE (CICE) (Hunke and Lipscomb, 2008) is used as the ice model and is coupled with HYbrid Coordinate Ocean Model (HYCOM) (Metzger et al., 2008, 2010). Ice and ocean fields are passed between the two models hourly using Earth System Modeling Framework (ESMF) (Hill et al., 2004). The ice and ocean models are set up and coupled on the same 1/12° horizontal grid. Resolution is approximately 3.5 km near the North Pole and 6.5 km near 40°N. A plot of the grid resolution can be seen here. Atmospheric forcing in ACNFS is obtained from the Fleet Numerical Meteorology and Oceanography Center 3 hrly 0.5° Naval Operational Global Atmospheric Prediction System (NOGAPS) (Hogan et al., 1991) forcing.