Related by context. Frequent words. (Click for all words.) 54 tide gauges 53 temperature salinity 53 MERIS 53 ocean buoys 52 bathymetric 52 Doppler radars 51 hydrophones 51 Ocean Observing 51 radiometer 51 Observing System 50 REMUS 49 tidal gauges 49 oceanographic 49 geoid 49 TRMM 49 hydrophone 49 equatorial Pacific 48 NASA Aqua 48 Envisat 48 equatorial Pacific Ocean 48 multispectral 48 bathymetry 48 Chipped offAussies set 48 Tropical Rainfall Measuring 48 EarthScope 48 IODP 48 remotely sensed 48 buoys 48 hydrographic 48 SMOS 47 polar orbiting 47 underwater microphones 47 optical telescopes 47 CALIPSO 47 radar altimeter 47 spectrographs 47 MODIS 47 foraminifera 46 spatial scales 46 aerosol particles 46 lidar 46 Kepler spacecraft 46 sediment cores 46 Remote sensing 46 National Geodetic Survey 46 seismographs 46 ICESat 46 satellites orbiting 46 geo referenced 45 Moderate Resolution 45 remote sensing satellites 45 NOAA 45 CRISM 45 VIRTIS 45 NASA Cassini spacecraft 45 CloudSat 45 InSAR 44 ocean salinity 44 NASA Cassini 44 NAD# [001] 44 robotic rovers 44 priests shuffled 44 oceanographers 44 infrared imagery 44 anemometers 44 ocean currents 44 geodesy 44 Polar Regions 44 AUVs 44 Aegis radar 44 undersea volcanoes 44 pugmarks 43 GAGAN 43 particle detectors 43 oceanic crust 43 subtropical regions 43 tropospheric 43 seismometers 43 polar vortex 43 VHF radios 43 synthetic aperture radar 43 seals sea lions 43 geophone 43 MBARI 43 interferometric 43 ultrasonic waves 43 landmasses 43 non intrusively 43 biogeochemical 43 Equatorial Pacific 43 mesoscale 42 observatories 42 robotic explorers 42 Data Logger 42 cryosphere 42 oceanic 42 spotter planes 42 Spectrometer 42 rigid hull inflatable 42 QuikSCAT 42 El Niño Southern Oscillation