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Global Coupled Atmosphere/Ocean Model for Seasonal and Climate Forecast Applications at NOAA/ESRL
Shan Sun (1,2), Georg Grell (2), Rainer Bleck (1,2,3), Stan Benjamin (2)
(1) CIRES, (2) NOAA ESRL, (3) NASA GISS
A coupled global model aimed at intra-seasonal and interannual prediction is under development at NOAA's Earth System Research Laboratory. It uses the FIM atmospheric model and an ocean model based on HYCOM ('iHYCOM'). Both FIM and iHYCOM are 3-dimensional grid point models, laid out on a common icosahedral horizontal grid and using an adaptive hybrid-isentropic/isopycnic vertical coordinate. The fact that FIM and iHYCOM shares horizontal grid allows us to couple the atmosphere and ocean model directly without the need for an interpolating flux coupler.