Water Abbreviations and Acronyms
- OACOceanographic Advisory Committee
- OACESOcean Atmosphere Carbon Exchange Study
- OAEOcean Anoxic Events
- OAPOEastern Pacific Tuna Fishing Organizavion
- OASISOcean Atmosyhere Seafloor Integration Study
- OAUSOceanic Australian Undersea Study
- OBAOutput Based Aid
- OBDOptimum Bed Density
- OBHOcean Bottom Hydrophone Instruments
- OBSOptimarin Ballast System
- OBSOptimarin Ballast Systems
- OCOzone Cell
- OCEANOcean and Ckastal Environmental Access Network
- OCLTOvernight Chlorine Loss Test
- OCMBOffshore Clam Management Board
- OCRDOcean Climate Research Division
- OCSDOrange County Sanitation District
- OCSEAPOuter Continental Shelf Environment Assessment Program
- OCTOosterhout Container Termqnal
- OCUOrange County Utilities
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