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(Click for frequent words.) 65 hydrosphere 62 Polar Regions 62 mantle convection 62 hydrological cycle 62 subglacial lakes 61 polar regions 61 atmospheric oceanic 60 glacial interglacial 60 glaciological 60 oceanic circulation 60 thermal inertia 60 Amundsen Sea 59 iceberg calving 59 hydrologic cycle 59 Rossby waves 59 atmospheric methane 58 polar 58 Envisat ASAR 58 polar oceans 58 multi decadal 58 Milankovitch cycles 58 albedo feedback 58 exosphere 57 cosmic ray flux 57 stratospheric ozone 57 outlet glaciers 57 Alaskan glaciers 57 glaciers 57 basaltic rocks 57 magnetospheric 57 subglacial 57 McMurdo Dry Valleys 57 airglow 57 deglaciation 57 glacial melting 57 ICESat 57 atmospheric aerosols 57 biogeochemical cycles 57 subsurface ocean 56 mineralogical composition 56 glacial ice 56 lithosphere 56 Bindschadler 56 Otto Bliesner 56 NASA QuikScat satellite 56 climatic variations 56 Konrad Steffen 56 upper troposphere 56 IPY 56 Abdalati 56 planetary atmospheres 56 Rignot 56 magnetosphere 56 climatic variability 56 atmospheric chemistry 56 Quaternary Period 56 radar altimetry 56 paleoclimatologists 56 polar caps 56 albedo 56 midlatitude 56 solar irradiance 56 biogeochemical processes 56 meteor impacts 56 atmospheric circulation 55 Transantarctic Mountains 55 Velicogna 55 Dry Valleys 55 tropopause 55 volcanism 55 equatorial latitudes 55 Earth Observation Programmes 55 jovian 55 geoid 55 mesosphere 55 ocean basins 55 springtime ozone 55 Cryogenian 55 paleoclimatology 55 mantle plumes 55 Lake Untersee 55 cryovolcanism 55 sub glacial lakes 55 teleconnections 55 biogeochemical 55 glacial melt 55 icesheet 55 Mercury magnetosphere 55 Atlantic Multidecadal Oscillation AMO 55 El Nino Southern Oscillation 55 crustal 55 mid latitudes 55 axial tilt 54 interannual variability 54 polar icecap 54 permafrost 54 Palaeocene Eocene Thermal Maximum 54 greenhouse warming 54 Michael Studinger 54 volcanic plumes 54 Jakobshavn Isbrae 54 coastal upwelling 54 Volker Liebig ESA 54 Warmer oceans 54 mineral olivine 54 crustal thickness 54 terrestrial ecosystems 54 ESA Envisat satellite 54 geomorphic 54 icy moons 54 stratospheric ozone depletion 54 landforms 54 melting permafrost 54 polar vortex 54 glaciations 54 permafrost melts 54 mountain glaciers 54 glacial retreat 54 equatorial Pacific Ocean 54 permanently shadowed regions 54 AMSR E 54 Laurentide ice sheet 54 GJ#b 54 troposphere 54 Indian Ocean Dipole 54 glacial cycles 54 receding glaciers 53 Tibetan Plateau 53 mid Pliocene 53 polarimetric 53 midlatitudes 53 polar ice 53 ICESCAPE 53 austral summer 53 poleward shift 53 galactic cosmic rays 53 Amundsen Sea Embayment 53 glacier 53 Martian craters 53 permafrost degradation 53 retreating glaciers 53 Waleed Abdalati director 53 Tharsis Rise 53 interstellar boundary 53 spatial variability 53 Southern Oscillation 53 plate tectonics 53 volcanic arcs 53 NASA THEMIS 53 EarthCARE 53 lowermost mantle 53 stratospheric clouds 53 icecaps 53 polar mesospheric clouds 53 Aram Chaos 53 geomorphological 53 subarctic 53 magma ocean 53 Valles Marineris 53 surface hoar 53 boreal ecosystems 53 icesheets 53 Polar Vortex 53 deep convective clouds 53 geodynamic 53 flood basalts 53 subpolar 53 AMASE 53 CryoSat mission 53 Advanced Microwave Scanning 53 EPOCh 53 Plate tectonics 53 Landsat satellite 53 NSIDC 53 oceanic currents 53 supercomputer simulations 52 Cynthia Rosenzweig 52 atmospheric convection 52 Ken Herkenhoff 52 magnetic substorms 52 atmospheric circulations 52 geomorphology 52 Antarctic Dry Valleys 52 Last Glacial Maximum 52 water vapor 52 glacier retreat 52 atmospheric CO2 levels 52 Jupiter moons Europa 52 auroral displays 52 Cosmic Microwave Background 52 microbial ecosystems 52 intraplate 52 astrophysical 52 meteorite impacts 52 oceanic crust 52 Saturn moon Mimas 52 ecoregions 52 ADM Aeolus 52 Greenland Ice 52 Fram Strait 52 Diviner instrument 52 Ted Scambos 52 Greenland icecap 52 SeaWiFS 52 Upsilon Andromedae 52 Waleed Abdalati 52 advection 52 yardangs 52 lunar crust 52 RAINEX 52 tropospheric 52 alpine glaciers 52 Himalayan river basins 52 Earths crust 52 paleoclimate 52 polar craters 52 laser altimeter 52 Earth ionosphere 52 tropospheric temperature 52 permafrost thaws 52 photosphere 52 dynamical processes 52 icecap 52 substorm 52 Sermilik Fjord 52 aerosol particles 52 particle astrophysics 52 geodynamics 52 stellar occultation 52 lunar craters 52 orbiting gamma ray 52 Paleoclimate 52 Eric Rignot 52 supervolcanoes 52 Ithaca Chasma 52 mesospheric 51 auroral activity 51 collisional 51 Robert Bindschadler 51 Larsen Ice Shelf 51 radiative transfer 51 satellite altimetry 51 Antarctic Peninsula 51 oceans airways 51 Snowball Earth 51 climate modelers 51 continental crust 51 ocean ridges 51 Gakkel Ridge 51 Earth magnetosphere 51 Cryospheric Sciences Branch 51 paleoclimatic 51 Chasma Boreale 51 Mars Climate Sounder 51 Martian dunes 51 Syrtis Major 51 amplifying feedbacks 51 anthropogenic aerosols 51 icefields 51 Cryosphere 51 El Niño Southern Oscillation 51 glaciation 51 Rayleigh scattering 51 Earth Observing 51 paleomagnetic 51 aerosol concentrations 51 Bering Glacier 51 methane hydrates 51 Mercury flyby 51 surface temperatures SSTs 51 Greenland ice 51 Greenland Antarctica 51 marine phytoplankton 51 Planitia 51 biogeochemistry 51 warmings 51 Martian polar 51 thermohaline circulation 51 climate modellers 51 Martian volcanoes 51 phytoplankton blooms 51 melting glacial 51 subglacial lake 51 anthropogenic greenhouse gases 51 warmer wetter winters 51 Composite Infrared Spectrometer 51 post perovskite 51 tectonics 51 Galilean satellites 51 ocean salinity 51 martian meteorites 51 infrared astronomy 51 INSTAAR 51 homochirality 51 Stratospheric ozone 51 oceanic 51 microphysical 51 Saturn Enceladus 51 Mars Color Imager 51 extrasolar 51 heavily cratered 51 Weddell Sea 51 tidewater glaciers 51 Bellingshausen Sea 51 stratospheric ozone chemistry 51 volcanic aerosols 51 telescopic observations 51 magnetic reconnection 51 Scambos 51 Great Observatories Origins 51 meridional overturning circulation 51 Permafrost 51 geochronology 51 Nikku Madhusudhan 51 shadowed craters 51 SINFONI 51 katabatic winds 51 upwellings 51 carbon fluxes 51 HiRISE image 50 radiative forcing 50 CIRES 50 Weiqing Han 50 climate forcings 50 Antarctica 50 asteroids comets 50 Hik 50 atmospheric CO 50 Hellas Basin 50 Hindu Kush Himalayas 50 USArray 50 evaporite deposits 50 Arctic 50 ultracold atoms 50 magmas 50 marine sediments 50 Saturnian moon Titan 50 atmospheric phenomena 50 Agulhas Current 50 landmasses 50 exoplanetary 50 Jupiter magnetosphere 50 El Nino La Nina 50 Corot 7b 50 Anisotropy Probe 50 glaciers recede 50 oceans 50 crustal deformation 50 Pacific Decadal Oscillation 50 glaciologists 50 planets atmospheres 50 circumpolar 50 clathrates 50 Oort Cloud 50 CloudSat 50 interplanetary spacecraft 50 magnetotail 50 heliospheric 50 Decadal 50 noctilucent clouds 50 fissure eruption 50 interglacial periods 50 earthshine 50 glaciers retreated 50 Hubble Space Telescope HST 50 planets orbits 50 planet magnetosphere 50 recrystallization 50 Fashion Movie Reviews 50 planet Gliese #g 50 ESA CryoSat 50 Diviner 50 IOOS 50 exoplanetary systems 50 Ross Ice Shelf 50 anthropogenically 50 subsurface 50 cometary dust 50 Zeebe 50 polynyas 50 ANDRILL 50 Gamma ray burst 50 Antarctic ice 50 Kuiper Belt Objects 50 Cabeus 50 Antarctic Circumpolar Current 50 asteroid impacts 50 circumpolar Arctic 50 warm interglacial periods 50 southernmost continent 50 Permian extinction 50 Antarctic icecap 50 carbonate minerals 50 flyby Cassini 50 Molnia 50 Whillans Ice Stream 50 Sumatra Andaman earthquake 50 circumstellar 50 smoothest flattest 50 geosphere 50 arctic 50 Mars CRISM 50 planetesimals 50 greatest insect emergences 50 Corot 9b 50 astrobiological 50 Extrasolar Planet Observations 50 marine ecologists 50 solar corona 50 Serreze 50 Stardust NExT mission 50 Antarctic Ice 50 Brigham Grette 50 Neptune Uranus 50 interglacial period 50 Valles Marineris canyon 50 Mercury exosphere 50 cometary 50 gas hydrates 50 Great Conveyor Belt 50 ejecta blanket 50 Volker Liebig 50 Himalayan Glaciers 50 sulphate aerosols 50 palaeoclimate 50 Gravitational waves 50 Bruce Jakosky 50 Hubble orbits 50 sedimentary deposits 50 polar plateau 50 Descent Imager Spectral Radiometer 50 interstellar dust grains 50 poleward 50 situ measurements 50 atmospheric 50 Ulysses spacecraft 50 subatomic scale 50 Dr van Ommen 49 heliosphere 49 physiographic 49 HD#b 49 Earth Observation EO 49 sedimentary geology 49 seismic anisotropy 49 Ontario Lacus 49 THEMIS mission 49 Decadal Survey 49 Fermi Gamma ray 49 atmospheric sciences 49 active volcanism 49 glaciers receded 49 sulfate aerosols 49 Igor Semiletov 49 Chukchi Cap 49 ultraviolet radiation emitted 49 ChemCam 49 phyllosilicates 49 Paleocene Eocene Thermal Maximum 49 MAR ECO 49 Banerdt 49 comet nuclei 49 Jay Zwally 49 lunar topography 49 Planck satellite 49 Antarctic glaciers 49 ozone depletion 49 Cancri e 49 NEAs 49 hydrothermal activity 49 Eemian 49 Venusian atmosphere 49 millimeter wavelengths 49 Arctic Ocean 49 glaciers melt 49 hematite mineral 49 polar stratospheric 49 cyanobacterial blooms 49 continental rifting 49 thawing permafrost 49 polar latitudes 49 Global Precipitation Climatology 49 atmospheric carbon dioxide 49 Greenland glaciers 49 observing satellites 49 meltwater 49 thermal diffusivity 49 stellar occultations 49 decadal 49 Younger Dryas 49 mantle lithosphere 49 glacier melt 49 moon Charon 49 journal Meteoritics 49 forcings 49 abyssal plain 49 Siberian Traps 49 NASA ICESat 49 Meridiani 49 Josefino Comiso 49 tectonic plate movements 49 spectroscopic analysis 49 grabens 49 Saturnian moons 49 ocean eddies 49 Saturn moons Enceladus 49 hydrometeorological 49 glaciers melted 49 extrasolar planetary systems 49 physico chemical 49 electron diffusion 49 Earth crust 49 Herschel Space 49 Candor Chasma 49 martian atmosphere 49 comet nucleus 49 ice nucleation 49 Vatnajökull 49 convective 49 astrophysical objects 49 topological insulators 49 El Niño La Niña 49 ejecta 49 subduction zones 49 glacier melting 49 magma chambers 49 ENSO El Nino 49 Mission TRMM 49 Schladow 49 anomalously warm 49 GEOSS 49 galaxy formation 49 Kuiper belt objects 49 ionosphere 49 geomagnetism 49 volcanoes erupt 49 Manned missions 49 cirrus clouds 49 Antarctic glacier 49 astrophysical phenomena 49 planetary science 49 Lamont Doherty 49 glacier melts 49 COROT 7b 49 terrestrial biosphere 49 Southern Annular Mode 49 Lunine 49 tidewater glacier 49 planet Gliese #c 49 Siple Dome 49 Kilimanjaro glaciers 49 permanently shadowed 49 Arabia Terra 49 anthropogenic climate 49 gravitational microlensing 49 tectonic stresses 49 atmospheric ozone 49 Earth orbiting satellites 49 interstellar clouds 49 biospheric 49 scatterometer 49 chemical reactivity 49 submarine volcanoes 49 ENSO cycle 49 Jonathan Lunine 49 Nares Strait 49 Moisture laden 49 Ian McShane Pillars 49 phyllosilicate 49 Earth biosphere 49 olivine mineral 49 EarthScope 49 cosmic ray intensity 48 neutrino physics 48 sediments deposited 48 tropospheric ozone 48 Fomalhaut b 48 neutrino oscillations 48 permafrost melting 48 Cassini flyby 48 equatorial regions 48 lander robotic arm 48 Greenland icesheet 48 planetary geology 48 diffuse aurora 48 stellar seismology 48 Cryo EM 48 seamounts 48 Antarctic 48 THEMIS Image 48 UCO Lick 48 glacial earthquakes 48 moon permanently shadowed 48 noctilucent cloud 48 moons Europa 48 seals walrus 48 metocean 48 Hamish Pritchard 48 Kerguelen Plateau 48 Arctic Oscillation 48 biosphere 48 dynamical 48 ancient supercontinent 48 Envisat 48 Olympus Mons 48 moon Europa 48 Mars Analog Svalbard 48 planet habitability 48 Jupiter moon Io 48 olivine 48 interferogram 48 boreal 48 Martian dust 48 radar interferometry 48 NCEAS 48 seafloor sediment 48 ejecta plume 48 benthos 48 HARPS instrument 48 coronal loops 48 Atlantic Multidecadal Oscillation 48 retrograde orbit 48 Kharecha 48 Pacific Decadal Oscillation PDO 48 Galileo spacecraft 48 moon gravitational pull 48 Planetary Laboratory 48 deepwater corals 48 geologically active 48 Bose Einstein condensates 48 muon neutrino 48 orographic 48 microplastics 48 THEMIS 48 ALH# 48 Cassini radar 48 missing baryons 48 tectonic movements 48 meteoritic material 48 rifting 48 driest continents 48 meteoritic 48 Saturnian moon 48 nonlinear dynamics 48 Cabeus crater 48 Madden Julian Oscillation 48 greenhouse gas concentrations 48 Schmittner 48 hydroxyl molecules 48 permanently shadowed craters 48 ice calved 48 anthropogenic carbon dioxide 48 Equatorial Pacific 48 AERONET 48 EPOXI 48 neutrino mass 48 InSAR 48 abiogenesis 48 CReSIS 48 occultations 48 Solar TErrestrial RElations Observatory 48 Cryosat 48 tectonic activity 48 UA Lunar 48 Cryogenian period 48 thermal gradient 48 Ny Ålesund 48 chondrules 48 Saturnian 48 routinely sloughed off 48 Solar Radiation 48 Pleistocene Ice Age 48 lunar meteorites 48 SMOS 48 anthropogenic 48 International Geosphere Biosphere 48 meteoroid 48 astronomical observations 48 supercontinent 48 Ozone depletion 48 APXS 48 YORP effect 48 thrust faulting 48 Europa Ganymede 48 visit http:/saturn.jpl.nasa.gov 48 trophic cascades 48 Atlantic meridional overturning 48 eruptive activity 48 Envisat satellite 48 galactic magnetic 48 Subarctic 48 GJ #b [001] 48 glaciology 48 vegetation greenness 48 Noctilucent clouds 48 geophysicist Scott Luthcke 48 auroral emissions 48 SST anomalies 48 microwave radiometer 48 geochemists 48 supercooling 48 geomagnetic substorms 48 glaciers icebergs 48 Hakan Svedhem 48 anthropogenic emissions 48 periodic dimming 48 Huygens mission 48 Ignatius Rigor 48 Gondwana supercontinent 48 hydrothermal vent 48 earth crust 48 underwater volcanos 48 earthquakes volcanic eruptions 48 Late Paleozoic 48 seismogenic 48 MG J# +# 48 neutron spectrometer 48 distant supernovae 48 harmful ultraviolet UV radiation 48 hydrated minerals 48 Antarctica EPICA 48 gravitational lenses 48 auroral 48 comets asteroids 48 binary asteroid 48 Saturn rings 48 shrinking glaciers 48 meridional flow 48 carbonate globules 48 Pluto Charon 48 AIRS instrument 48 Gamburtsev 48 tropical troposphere 48 tropical glaciers 48 mesoscale 48 weak gravitational lensing 48 geohazard 48 von Frese 48 methane hydrate 48 NASA Wilkinson Microwave 48 explosive volcanism 48 microwave remote sensing 48 thermosphere 48 Landsat satellites 48 radio occultation 48 carbonyl sulfide 48 Arctic oscillation 48 Jupiter icy moons 48 crustal movements 48 Earthlike 48 undersea volcanoes 48 biogeographic 48 Barents Region 48 comets orbiting 48 refugia 48 Mars Squyres 48 Martian landscape 48 Triassic Jurassic 48 Martian surface 47 cinder cones 47 photochemical reactions 47 gamma ray flashes 47 nitrogen deposition 47 asthenosphere 47 atmospheric CO2 47 cometary impacts 47 tropical latitudes 47 microstructural 47 Cometary 47 supersymmetric particles 47 Exoplanet 47 planetary sciences 47 volcanically active 47 geologic 47 Astrophysics MOA 47 microbialites 47 duration spaceflights 47 interferometric synthetic aperture radar 47 Planetary Fourier Spectrometer PFS 47 climatologically 47 Alycia Weinberger 47 sedimentary layers 47 Climate Experiment GRACE 47 spectroscopic measurements 47 Starz Pillars 47 HiRISE images 47 Methane hydrates 47 silicic 47 fainter objects 47 Hellas Planitia 47 Sheet WAIS 47 planetary 47 isostatic rebound 47 sequesters carbon 47 extratropical cyclones 47 Vastitas Borealis 47 lunar perigee 47 Nankai Trough 47 marine ecosystems 47 ESA Planck 47 biota 47 crustal plate 47 particle acceleration 47 outer corona 47 baryon acoustic oscillations 47 El Nino periodic 47 decadal scale 47 alpine ecosystems 47 IceCube Neutrino Observatory 47 Saturn moon 47 mineralogical mapping 47 Jovian moon 47 retroreflector 47 glacial geology 47 snowier winters 47 martian surface 47 Helheim glacier 47 IceBridge 47 spatially referenced 47 Moon Mineralogy Mapper M3 47 Ocean Observing 47 Shad O'Neel 47 multidecadal 47 megacryometeor 47 spatially resolved 47 Caloris 47 ESA Integral 47 glacial interglacial cycles 47 Hindu Kush Himalaya 47 Son Nghiem 47 Moderate Resolution Imaging 47 Vladimir Romanovsky 47 CoRoT 9b 47 chlorophyll fluorescence 47 Viking Lander 47 spectral fingerprint 47 cratered highlands 47 OGLE TR #b 47 Gliese #G 47 Terre Adelie 47 Landsat imagery 47 specular reflection 47 polynya 47 moon Enceladus 47 Vertical wind shear 47 chemosynthetic 47 ionospheric 47 Envisat satellites 47 altitudinal 47 Comet Halley 47 biosignatures 47 geomechanics 47 Antarctic stratosphere 47 microbial ecology 47 NASA satellites orbiting 47 temperature reconstructions 47 gravitational radiation 47 geology hydrology 47 solar insolation 47 methane CH4 47 superheavy elements 47 planetary astronomer 47 Yellowstone geysers 47 magnetic polarity 47 geomagnetic field 47 KBOs 47 microwave radiometers 47 interannual 47 Saharan dust 47 wettability 47 ARPES 47 lunar equator 47 galaxy redshift 47 chlorine monoxide 47 asteroseismology 47 coldest driest 47 tropic regions 47 Fermi Telescope 47 electron flux 47 disappearing glaciers 47 Nili Fossae 47 NASA GISS 47 oceanography meteorology 47 geology paleontology 47 Alfven waves 47 Arsia Mons 47 Ice Ages 47 outer planets 47 aboard ESA Envisat 47 Laurentide Ice Sheet 47 Appy Sluijs 47 Scott Luthcke 47 abyssal plains 47 Juneau Icefield 47 Epoxi 47 downwelling 47 bison lumbered 47 cosmological parameters 47 spaceborne 47 WAIS 47 seafloor sediments 47 Fermi telescope 47 equatorial bulge 47 volcanic activity 47 ocean sediment cores 47 sulfur isotope 47 meteorite bombardment 47 chromosphere 47 polar voyages 47 Saturn moon Enceladus 47 ERDAS creates 47 Martian meteorites 47 Shatsky Rise 47 Arctic icecap 47 reef habitats 47 comet Lulin 47 geology geophysics 47 Shakhova 47 planetary scientist 47 icefield 47 Yarkovsky effect 47 Microlensing 47 LRO spacecraft 47 longwave radiation 47 LCROSS Observation Campaign 47 permafrost soils 47 magnetic monopoles 47 sulfate aerosol 47 Jay Famiglietti 47 geological timescales 47 outgassing 47 ° C warmer 47 Oort cloud 47 coral reef habitats 47 geoneutrinos 47 Image NASA JPL 47 crustal plates 47 paleoenvironmental 47 calderas 47 magmatic 47 Orbiting Carbon Observatory OCO 47 Permian Triassic boundary 47 cometary debris 47 Compact Reconnaissance Imaging Spectrometer 47 Kay Bidle 47 Harmful algal blooms 47 Jeffrey Kargel 47 volcano Olympus Mons 47 jarosite 47 temperate latitudes 47 Quaternary 47 remotely sensed 47 subarctic regions 47 phytoplankton biomass 47 single celled microorganisms 47 exobiology 47 Heliophysics 47 electron neutrinos 47 aerosols 47 protoplanetary disks 47 Quelccaya 47 Comet 9P/Tempel 1 47 antarctic 47 cosmic phenomena 47 neutrino detectors 47 magmatism 47 basaltic 47 Sheldon Drobot 47 P/# A2 47 Stein Sture 47 circumstellar disks 47 dissolved oxygen pH 47 refreezing 47 Mini SAR 47 Eocene Oligocene 47 oxygen isotopic 47 polar icecaps 47 Gusev crater 47 planetary orbits 47 paleoecology 46 Orbiter LRO 46 celestial phenomena 46 neutral mass spectrometer 46 cloud microphysics 46 lavas 46 Chazy Reef 46 ionized particles 46 AATSR 46 Earth albedo 46 AccuWeather.com RealFeel ® 46 anthropogenic warming 46 cosmological distances 46 RXTE 46 TrES 4 46 Opposes drilling 46 Saturn moons 46 continental drift 46 orbital eccentricity 46 hydrology geology 46 planetary Transits