Related by context. Frequent words. (Click for all words.) 62 sonar exercises 59 frequency sonar 56 sonar 54 sonars 53 sonobuoys 53 marine mammals 52 undersea warfare 51 amphibious warfare 51 submarine warfare 51 warfighting capabilities 50 REMUS 50 UUV 49 migrating whales 48 pingers 48 longline fishing 48 NVGs 48 coastal waters 48 endangered whales 48 vehicles UAVs 48 ocean buoys 48 Aegis radar 48 antisubmarine 47 equatorial waters 47 seawaters 47 underwater sonar 47 littoral 47 JTACs 47 Space Fence 47 AUVs 47 Aegis cruisers 47 Reconnaissance ISR 47 ramjet 47 Unmanned Aerial Vehicles 47 electromagnetic pulses 47 Aegis Weapon System 47 Polarstern 47 maritime interdiction 47 beaked whales 47 VHF radios 46 navigational hazards 46 amphibious assaults 46 PLBs 46 oceanographic 46 Lakshadweep Islands 46 geostationary satellites 46 nearshore waters 46 longlines 46 Observing System 46 ScanEagle 46 maritime 46 tidal turbines 46 UAVs 46 electromagnetic EM 46 hydrophones 46 Apra Harbor 46 whales 46 hypersonic flight 46 sensor arrays 46 NLOS LS 46 Overflights 45 RuBee 45 Automatic Identification System 45 Spy satellites 45 Stratellite 45 BrahMos missile 45 hydrophone 45 amphibious landings 45 hydrographic 45 Somali territorial waters 45 USNS Impeccable 45 Defense THAAD 45 Navy 45 whale strandings 45 Unmanned Aerial Vehicles UAVs 45 whales dolphins 45 atmospheric turbulence 45 PowerBuoy 45 uninhabited islets 45 interplanetary spacecraft 45 vehicles ROVs 44 Ocean Observing 44 marine 44 iron fertilization 44 MAVs 44 Maritime Surveillance 44 reconnaissance satellites 44 IUU 44 Gorgon Stare 44 Galileo satellites 44 infrasound 44 bathymetric 44 Tsunami Warning System 44 AmosConnect 44 oceanic 44 VHF FM 44 JSTARS 44 toothed whales 44 biofouling 44 minesweeping 44 unmanned underwater 44 mariners