Nowcasting and Forecasting the Global Ocean
NAVAL RESEARCH LAB STENNIS DETACHMENT STENNIS SPACE CENTER MS
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Over the past decade, the Naval Research Laboratory NRL has been actively working on the problem of eddy-resolving global ocean modeling and prediction. The worlds first global ocean nowcastforecast system has been developed at NRL and is running in real-time at the Naval Oceanographic Office NAVO. The system consist of the 116 degree 7-layer, thermodynamic, finite depth version of the Navy Layered Ocean Nodal NLOM for the global ocean 72 degrees to 65 degrees north and includes a mixed layer and sea surface temperature SST. It spun-up to real-time using high frequency wind and thermal forcing from the Fleet Numerical Meteorology and Oceanography Centers Navy Operational Global Atmospheric prediction system. It includes assimilation of SST and near real-time TOPEXPOSEIDON and ERS-2 altimeter data made available from NAVOs Altimeter Data Fusion Center NAVO is scheduled to begin operational testing of the system on 15 December 2000 and pending a successful outcome it will become an operational product. System gives a real-time view of the ocean down to 50-200 km scale of ocean eddies and the meandering of ocean currents and fronts. Figure 1 is an example of sea surface height SSH and SST for the Gulf Stream in the Atlantic.
- Physical and Dynamic Oceanography