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| English | Thesaurus |
| Deep Ocean Resources Development Co., Ltd. | DORD |
| Integrated Global Ocean Services System | IGOSS |
| Ocean Drilling Program | ODP |
| Ocean Survey Program | OSP (USA) |
| Oceans and Coastal Areas Programme Activity Centre | OCA/PAC (UNEP) |
| Parallel Ocean Program Global Ocean Model | POP (Alex Lilo) |
| Tropical Ocean and Global Atmosphere Programme | TOGA |