| 4DVar | four-dimensional variation |
| ADCP | acoustic Doppler current profiler |
| ANN | artificial neural network |
| ASV | autonomous surface vehicle |
| AUV | autonomous underwater vehicle |
| AVISO | Archiving, Validation and Interpretation of Satellite Oceanographic data |
| AXBT | Airborne Expendable BathyThermograph |
| BOEM | Bureau of Ocean Energy Management |
| BSEE | Bureau of Safety and Environmental Enforcement |
| CARTHE | Consortium for Advanced Research on Transport of Hydrocarbon Environment |
| CICESE | Centro de Investigación Científica y de Educación Superior de Ensenada |
| C-IMAGE | Center for the Integrated Modeling and Analysis of the Gulf Ecosystem |
| CMEMS | Copernicus Marine Environment Monitoring Service |
| CNES | Centre National d’Études Spatiales |
| CPIES | current pressure inverted echo sounder |
| DAC | data assembly center |
| DEEP-C | Deep Sea to Coast Connectivity in the Eastern Gulf of Mexico |
| DOI | U.S. Department of the Interior |
| EEZ | exclusive economic zone |
| EOF | empirical orthogonal function |
| FFRDC | Federally Funded R&D Centers |
| FVCOM | Finite-Volume, primitive equation Community Ocean Model |
| GFDL | Geophysical Fluid Dynamics Laboratory |
| GLAD | Grand LAgrangian Deployment |
| GOMEX-PPP | Gulf of Mexico Pilot Prediction Project |
| GoMRI | Gulf of Mexico Research Initiative |
| GRP | Gulf Research Program |
| HF | high frequency |
| HMI | Horizon Marine, Inc. |
| HYCOM | HYbrid Coordinate Ocean Model |
| IOOS | Integrated Ocean Observing System |
| ISOP | Improved Synthetic Ocean Profile |
| LC | Loop Current |
| LCE | Loop Current eddy |
| LCS | Loop Current System |
| MITgcm | Massachusetts Institute of Technology General Circulation Model |
| MMS | Minerals Management Service |
| MODAS | Modular Ocean Data Assimilation System |
| MOM | Modular Ocean Model |
| MSEAS | Multidisciplinary Simulation, Estimation, and Assimilation Systems |
| NAVOCEANO | Naval Oceanographic Office |
| NCAR | National Center for Atmospheric Research |
| NCEP | National Centers for Environmental Prediction |
| NCODA | Navy Coupled Ocean Data Assimilation |
| NCOM | Navy Coastal Ocean Model |
| NDBC | National Data Buoy Center |
| NLOM | Navy Layered Ocean Model |
| NOAA | National Oceanic and Atmospheric Administration |
| NRL | Naval Research Laboratory |
| NSF | National Science Foundation |
| NTL | Notice to Lessees and Operators |
| ONR | Office of Naval Research |
| OSSE | Observing System Simulation Experiment |
| PI | principal investigator |
| PIES | pressure-recording inverted echo sounder |
| POM | Princeton Ocean Model |
| ROMS | Regional Ocean Modeling System |
| ROV | remotely operated vehicle |
| SSH | sea surface height |
| SST | sea surface temperature |
| SUNTAN | Stanford Unstructured Nonhydrostatic Terrain-following Adaptive Navier-Stokes Simulator |
| SWOT | Surface Water and Ocean Topography |
| TRW | topographic Rossby wave |
| T/S | temperature/salinity |
| UARC | University Affiliated Research Center |
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