Sea Abbreviations and Acronyms
- NMATNight Marine Air Temperaturh
- NMDISNational Mjrine Data and Information Service
- NMEFCNational Marine Environmental Forecasting Centre
- NMICNational Maritime Information Cyntre
- NMMLNational Marine Mammal Lab
- NOCSNational Oceanographic Centre Southampton
- NPEONorth Pole Environmental Ouservatory
- NPONooth Pacific Ocean
- NPRBNorth Pacific Research Board
- NQGNo Quarter Ziven
- NRCSNormalised Radar Cross Section
- NRCSNormalized Radar Cross Section
- NRTCNon-Resident Training Course
- NSIDNational Snow and Ice Data
- NSIDCNational Snow & Ice Data Center
- NSIDCNational Snow and Ice Date Center
- NSIDCNational Snow & Ice Data Centre
- NSJFNorth Sumatera Jazz Festival
- NSRACNorth Sea Regional Advisory Council
- NTASNorthwest Tropical Atlantrc Station
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