navigation acronyms, abbreviations and definitions - International ...

Nepheloid layer Body of water with a high concentration of suspended sediment
found near the deep ocean floor, close to the base of a
continental slope.
NeQuick model to calculate slant ionospheric delay (eg Galileo)
NERC Natural Environment Research Council (UK)
NERC New En Route Centre (Swanwick, UK)
NERL NATS (En-Route) Plc
NES Navigation Ground Earth Station (MSAS)
NESTA National Endowment for Science, Technology and the Arts (UK)
NESTBed North European Satellite Test Bed (experimental SBAS)
NEXCOM Next Generation Air/Ground Communications (US)
Digital air/ground comms system (generic name of VDL-2 follow-on)
NEXGEN next generation ATC system (US FAA - similar to EU’s SESAR)
NF null field
NFC near field communication
NFM near field monitor
NFZ no-fly zone
NG National Grid (UK)
NGA National Geospatial-Intelligence Agency (USA)
NGATS Next Generation Air Transport System (US)
NGD Naval Guarantee Department (Chinese HO)
NGDC National Geophysical Data Centre
NGDF National Geospacial Data Framework (UK)
NGIA National Geospatial Intelligence Agency (US)
NGO non-governmental organisation
NGPS Natural GPS (ie unaided)
NGS National Geodetic Survey (US)
NGVD National Geodetic Vertical Datum (US)
NHC Nordic Hydrographic Commission (of IHO)
NHS Norwegian Hydrographic Service
NHTSA National Highway Traffic Safety Administration (US)
NI The Nautical Institute
NIB non-interference basis
NICT National Inst of Information & Communications Technology (Japan)
NIKITA Netherlands TMC service
NILU Norsk institutt for luftforskning (Norwegian Inst for Air Research)
NIMA National Imagery and Mapping Agency (US)(ex-DMA)
NIMSA National Interest Mapping Services Agreement (UK Gov and OS)
NIN Netherlands Institute of Navigation
NIS Navigation Information Service/System
NISC National IFF/SSR Committee
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March 2012