Related by context. Frequent words. (Click for all words.) 51 measurements 44 precise measurements 44 planetary atmospheres 44 detectability 44 biogeochemical 44 infrared telescopes 42 diffracted 42 Measurements 42 crystal lattice 42 astronomical observations 41 submillimeter 41 lunar craters 41 Soil samples 41 quantitative measurements 41 geoid 41 deformations 40 tropospheric 40 interferometric 40 calibrations 40 electromagnetic EM 40 spaceborne 40 structures 40 interferometers 40 radiocarbon dates 40 Spectroscopic 40 elemental composition 40 sensor arrays 39 diffraction pattern 39 photometric 39 microstructural 39 photometry 39 temperature gradients 39 mineshafts 39 Computer simulations 39 petrographic 39 isotope ratios 39 x ray diffraction 38 hydrothermal fluids 38 fluxes 38 detectors 38 conductivity 38 surface roughness 38 photometer 38 observation 38 Cepheids 38 zonation 38 interplanetary spacecraft 38 gaseous planets 38 topographies 38 measurement 38 Radiographs 38 isotopic composition 38 radiometric surveys 37 nanometers billionths 37 radioactive byproducts 37 scanning electron microscopy 37 illuminance 37 collimated 37 deconvolution 37 maser 37 substructures 37 hydrogeologic 37 measuring 37 calibration 37 airflows 37 bioassays 37 spectrometry 37 infrared spectroscopy 37 dipoles 37 underground 37 bathymetry 37 calorimeter 37 curvatures 37 monitoring 37 temperature salinity 37 electron density 37 monopoles 37 accuracies 37 sensors 36 psychophysical 36 photosynthetic organisms 36 biogenic 36 radiometer 36 isotopic 36 numerical modeling 36 laser pulses 36 detectible 36 desorption 36 geo referenced 36 prognostics 36 Diviner 36 humidify 36 numerical simulations 36 ground truthing 36 Precautionary measures 36 altimeters 36 infrared wavelength 36 calibrating 36 Attenuation 36 microscopy techniques 36 spectrographs