GO5.0: The joint NERC-Met Office NEMO global ocean model for use in coupled and forced applications

摘要: Abstract. We describe a new Global Ocean standard configuration (GO5.0) at eddy-permitting resolution, developed jointly between the National Oceanography Centre and Met Office as part of Joint Modelling Programme (JOMP), working group UK's for Forecasting (NCOF) Weather Climate Research (JWCRP). The has been with seamless approach to modelling in mind ocean across timescales range applications, from short-range forecasting through seasonal climate predictions well research use. coupled sea ice (GSI5.0), atmosphere (GA5.0), land-surface (GL5.0) configurations form global model (GC1). GO5.0 will become basis component Assimilation Model, which provides forced services. GC1 or future releases it be used forecasting, decadal prediction UK Earth System Model. A 30-year integration GO5.0, run CORE2 (Common Ocean-ice Reference Experiments) surface forcing 1976 2005, is described, performance final 10 years evaluated against observations comparable an existing configuration, GO1. An additional set 10-year sensitivity studies, carried out attribute changes individual physics, also analysed. found have substantially reduced subsurface drift above depth thermocline relative GO1, shows significant improvement representation annual cycle temperature mixed layer depth.