680 



NASA National Aeronautics and Space Administration 



NAVMETOCCOM Naval Meteorology and Oceanography Command 



NAVOCEANO Naval Oceanographic Office (NAVMETOCCOM) 



NGDC National Geophysical Data Center (NOAA) 



NIC National Ice Center (NAVMETOCCOM) 



NOAA National Oceanic and Atmospheric Administration 



NODC National Oceanographic Data Center (NOAA) 



NRL Naval Research Laboratory 



NSF National Science Foundation 



NSnXJ National Snow and Ice Data Center 



NTM National Technical Means 



ONR Office of Naval Research 



OSD Office of the Secretary of Defense 



PMEL Pacific Marine Environmental Laboratory (NOAA) 



ROV Remotely Operated Vehicle 



rms root mean squared 



SAR Synthetic Aperture Radar 



SASS Sonar Array Survey System 



SCI Sensitive Compartmented Information 



SeaBeam Sea Beam Instruments, Inc., a manufacturer of survey sonar systems 



SeaWiFS Sea-Viewing Wide Field-of-View Sensor 



SECDEF Secretary of Defense 



SIMRAD Manufacturer of ocean instruments 



SSC Stennis Space Center 



SWDM Shallow Water Data Model (GDEM) 



Topex/Poseidon Joint U. S / France satellite mission launched in 1972 



ULS Upward-Looking Sonar 



USGS U.S. Geological Survey 



WMM World Magnetic Model 



WSC Warfighting Support Center 



52 



