Northrop Grumman Corp has upgraded the high-performance computers at the Naval Oceanographic Office in Bay St Louis, Missouri, making the site the fourth most powerful in the US, below the National Security Agency, Sandia National Laboratories and Los Alamos National Laboratory. The upgrade, performed by Northrupp Grumman’s Data Systems and Services Division, is part of the High Performance Computing Modernization contract won by Northrupp in 1996. The Cray T3E and Silicon Graphics Origin 2000 systems, located at the Stennis Space Center in Bay St Louis, have been doubled in size. The site supports climate and weather, ocean modeling, computational fludi dynamics, signal image processing, computational electromagnetics and acoustics, and environmental quality modeling and simulation applications, and is one of four Major Shared Resource Centers in the US.