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Validation of Global Ocean Forecast System (GOFS) 3.1
Ole Martin Smedstad, E. Joseph Metzger, Patrick J. Hogan, Pamela G. Posey, Alan J. Wallcraft, Deborah S. Franklin, Luis Zamudio, Michael W. Phelps
Vencore
(Abstract received 04/29/2015 for session X)
ABSTRACT
The soon to be operational Global Ocean Forecast System (GOFS) 3.1 developed by the Naval Research Laboratory (NRL) will be described. The system consists of the 1/12 degree global HYbrid Coordinate Ocean Model (HYCOM) two-way coupled via the Earth System Modeling Framework (ESMF) to the Los Alamos Community Ice CodE (CICE). The data assimilation capability consists of the Navy Coupled Ocean Data Assimilation (NCODA) 3DVAR system. NCODA assimilates observations from satellite altimeter tracks, SST, sea ice concentration and in situ observations, including profile data from BT's and Argo floats. The atmospheric forcing comes from the NAVy Global Environmental Model (NAVGEM). The system has been compared to un-assimilated observations as well as to the current operational global ocean and Arctic ice models running at the Naval Oceanographic Office. Results from the validation will be presented. The follow on version of GOFS will also be described. It will have a horizontal resolution of 1/25 degree and include tidal forcing.
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2015 LOM Workshop, Copenhagen, Denmark June 2nd - 4th, 2015