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Code 7320: Ocean Dynamics and Prediction Branch

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Dynamic News for 2016

Air Sea Interaction around Southern Africa
Posted on November 15, 2016
The oceans around Southern Africa clearly reveal the impact of air-sea interactions via heat and momentum flux. The ocean response to these interactions is illustrated by the animations of sea surface temperature (SST) and surface currents included below. (Read more)      
For more information contact author.

2016 Arctic Cyclone Wave - Ice Interactions
Posted on November 9, 2016
The animation shows the significant wave height (in meters, indicated by color scale) during the 2016 Arctic cyclone, as predicted by a numerical wave model run at the NRL 7322. The solid red lines correspond to the analysis ice concentrations (25%, 50%, and 75%) used as input for the wave model. White arrows indicate wave direction. (Read more)      
For more information contact author.

Using Ice Predictions to guide submarines
Posted on November 3, 2016
NRL has developed a FLAPs (fractures, leads, and polynyas) forecast product used by the National Ice Center for providing guidance for submarines transiting under the Arctic ice. A lead represents a crack or linear opening in the sea ice caused by divergent ocean current flows or wind effects. (Read more)      
For more information contact author.

Global Ocean Forecast System (GOFS) 3.1
Posted on November 1, 2016
The next generation Global Ocean Forecast System (GOFS 3.1) is a Navy ocean/ice nowcasting and forecasting capability based on the HYbrid Coordinate Ocean Model (HYCOM), two-way coupled to the Community Ice CodE (CICE) and using the Navy Coupled Ocean Data Assimilation (NCODA). (Read more)      
For more information contact author.

Submesoscale Prediction of Eddies by Altimeter Retrieval (SPEAR)
Posted on October 21, 2016
Operational ocean prediction in deep water has been restricted to mesoscale ranges based on computational capabilities that limited numerical model resolution in regional areas and observation systems that provide only mesoscale ranges. Recent 6.1 research has advanced dynamical understanding of submesoscale processes, continued expansion of computational capability has allowed representation of submesoscale dynamics across regional domains, and observation systems able to resolve the submesoscale will be available during the planned project timeline. (Read more)      
For more information contact author.

Calibration of Ocean Forcing with Satellite Flux Estimates (COFFEE)
Posted on October 21, 2016
Satellite observations are used to guide forecasts of sea surface temperature (SST) through variational data assimilation and heat flux calibration. In the experiments considered, assimilation is conducted using the Navy Coupled Ocean Data Assimilation (NCODA) in either a standard 3D variational (3DVAR) or an alternative 4DVAR formulation. Heat flux for the forecasts follows the original operational highest-quality time series or modifies the flux-determining fields using the Naval Research Laboratory ocean flux (NFLUX) capability. (Read more)     
For more information contact author.

Science as Art
Posted on October 21, 2016
During the 1970's in New York City, a community of artists began an art form on the fringes of society. Not represented by the main stream art establishment, these artists painted "Graffiti", without permission, on the sides of subway cars. Many of these artworks are no more readable to the average person than scientific equations, but Graffiti designs are fun and interesting! Today, the fantastic graffiti lettering styles are well known and eye catching. (Read more)     
For more information contact author.

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