Related by context. Frequent words. (Click for all words.) 64 spectrometer 63 radar altimeter 61 interferometer 61 spectrometers 60 multispectral 60 interferometry 59 synthetic aperture radar 58 Spectrometer 57 spectroscopic 57 infrared imagery 57 infrared 56 CALIPSO 56 polar orbiting 56 imager 55 SMOS 55 MODIS 55 infrared radiation 55 ionospheric 55 Mini SAR 55 transmission electron microscope 54 spectroscopy 54 CCD camera 53 wavelengths 53 WFC3 53 Remote sensing 53 lidar 53 ICESat 53 Radiometer 53 X ray telescope 53 frequency comb 53 NASA Aqua 53 optical microscope 53 CIRS 53 irradiance 53 THEMIS 53 surface roughness 52 sensor 52 spectrometry 52 CRISM 52 photometric 52 spectra 52 infra red 52 magnetic flux 52 infrared spectrometer 52 thermal emission spectrometer 52 gas chromatograph 52 bathymetry 52 photodetector 52 InGaAs 51 spectrophotometers 51 hyperspectral 51 infrared wavelengths 51 ESO Very Large Telescope 51 emissivity 51 altimeters 51 reflectance 51 reflector 51 OSIRIS 51 Fluorescence 51 VLBA 51 magnetometer 51 ultrasonic sensors 51 mass spectrometer 51 CloudSat 51 Moderate Resolution 51 Cassini orbiter 51 SQUID 51 remote sensing 51 sensors 51 visible wavelengths 51 panoramic camera 51 atmospheric turbulence 51 Keck Observatory 50 cryogenic temperatures 50 ionisation 50 measurements 50 infrared IR 50 STIS 50 inertial navigation 50 infrared rays 50 Envisat 50 Raman spectroscopy 50 multi spectral 50 solar corona 50 microwave frequencies 50 STEREO 50 laser pulses 50 microscopic imager 50 attosecond 50 photodiodes 50 optical telescopes 50 Thermal Emission Imaging 50 optical telescope 50 particle detector 50 Imager 50 fluorescence imaging 50 spectrophotometer 50 COROT 49 NICMOS 49 tomography 49 TRMM