Related by context. Frequent words. (Click for all words.) 62 Doppler radar 60 radars 60 satellites 58 geostationary satellites 58 tide gauges 55 seismographs 55 TRMM 54 remote sensing satellites 52 meteorological 52 lidar 51 observatories 51 satellites orbiting 51 meteorologists 50 Administration PAGASA 50 microsatellites 50 Medium Range 50 remote sensing 50 Pagasa 49 GPS satellites 49 seismometers 48 synthetic aperture radar 48 QuikScat 48 telescopes 48 Radars 48 hydrophones 48 geodetic 48 telescope 47 Doppler 47 optical telescopes 47 reconnaissance satellites 47 remote sensing satellite 47 optical telescope 47 sensors 46 multispectral 46 NOAA Weather 46 Aegis radar 46 satellite 46 PAGASA 46 positioning satellites 46 antennas 46 Vaisala 45 radio transmitters 45 Geostationary Operational Environmental 45 infrared detectors 45 band transponders 45 Satellites 45 sonars 45 CloudSat 45 infrared sensors 45 weathermen 45 Meteorological Bureau 45 Global Positioning System 45 NASA Aqua 45 geostationary 44 reconnaissance aircraft 44 Meteorological 44 UAVs 44 meteorology 44 El Nino phenomenon 44 observatory 44 orbiting satellites 44 satellite imagery 44 Aegis destroyers 44 orbiting telescope 44 MODIS 44 LIDAR 44 tropical cyclones 44 ICESat 44 spy satellites 44 aerostats 43 Philippine Atmospheric Geophysical 43 Meteorological Department 43 anemometer 43 detectors 43 radar 43 satellite constellation 43 Weather Service 43 Envisat 43 transmitters 43 buoys 43 Ku Band 43 Astronomical Services 43 NOAA 43 Seismic Network 43 unmanned aerial vehicles 43 sensor 43 orbiting spacecraft 43 remotely piloted aircraft 42 Satellite imagery 42 multi spectral 42 Meteorological Administration 42 forecasters 42 seismology 42 geomagnetic storms 42 infra red 42 spectrometers 42 infrared 42 Meteorological Agency 42 infrared sensor 42 Transmitters 42 spectrometer