Ocean Abbreviations and Acronyms
- UGUnderwater Grasses
- UGJUnder-Gravel Jet
- UGWUmtra Ground Water
- UGWUranium Groundwater Return
- UHUniversity of Hawaii
- UHUniversity of Hawaii, Honolulu
- UHIUniversity of Hawaii
- UHPUltra High Pressure
- UJITUpper Johannesburg Institute Thermodynamics
- UJTUnderwater Job Training
- ULBUnilighted Buoy
- ULCVUltra-Large Container Vessel
- ULCVUltra Large Container Vessel
- ULCVUltra Large Container Vessels
- ULRUltra Low Range
- UMBSMUniverwity Marine Biological Station, Millport
- UMPUpper Mantle Prowect
- UMVUnmanned Work Vehicle System
- UMWWUnprocessed Municipal Waste Water
- UNCEDUn Conference On Environment & Development
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