Navy's Global Ocean Forecast System Goes Public

MarineLink.com
Thursday, March 06, 2014
Oceanography file image CCL

The U.S. Naval Research Laboratory (NRL) & the National Center for Environmental Prediction (NCEP) within the National Ocean and Atmospheric Administration (NOAA) have entered into a formal agreement that results in NCEP using Navy developed global ocean forecast model technology to make environmental ocean forecasts for public use.

“Development of an advanced global ocean prediction system has been a long-term Navy interest,” said Dr. Gregg Jacobs, head, NRL Ocean Dynamics and Prediction Branch. “This use of Navy developed systems for global ocean forecasting represents dual use technology that will benefit civilian interests and is an excellent example of the cutting edge research that is enabled through Navy sponsored investments.”

The ability to operationally predict the ocean environment and provide this critical information had been developed within the Navy through the Office of Naval Research (ONR) and NRL research and development (R&D) investments along with Oceanographer of the Navy investments resulting in the transition of systems to the Naval Oceanographic Office (NAVOCEANO).

The Navy has had requirements for predicting the ocean environment for its purposes including estimating acoustic propagation, placement of sonar arrays, determining currents for mine drift and burial, drift for search and rescue, and safety of operations on and under the ocean surface. NRL has enabled Navy operational ocean prediction of tactically relevant information.

To accomplish this task, Jacobs says three critical components are necessary to predict the open ocean environment. “The first is access to satellite observations that measure precise sea surface height, sea surface temperature and ice concentration with in situ observations from public sources and Navy ships; second, numerical models representing the dynamical processes capable of understanding the physics of the ocean and numerical methods for efficiently representing those physics; and lastly, the third critical component is the technology to correct the numerical models using the observations through data assimilation.“ These components have been implemented at the Naval Oceanographic Office for daily global ocean prediction.

Within NCEP, the observational components from satellite and from NOAA buoys around U.S. coasts are available publicly. For the dynamical model, NCEP has adopted the Hybrid Coordinate Ocean Model (HYCOM) numerical model system developed through the National Ocean Partnership Program (NOPP) that NAVOCEANO runs to construct seven-day forecasts each day of the year. The third critical piece provided to NCEP through the new agreement enables application of Navy technology to the civilian sector.





 

 

 


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