Related by context. Frequent words. (Click for all words.) 63 mid latitudes 60 polar vortex 60 phytoplankton blooms 60 cirrus clouds 59 tropospheric 59 latitudes 59 El Niños 57 insolation 57 ultraviolet wavelengths 57 poleward 56 aurorae 56 temperature inversions 56 equatorial regions 56 aerosol particles 56 lithosphere 56 equatorial 55 upwellings 55 temperate zones 55 thermocline 55 convective 55 auroral 55 equatorial Pacific Ocean 55 X ray emission 55 solar irradiance 54 polar caps 54 Polar Regions 54 interglacial period 54 temperature gradient 54 reddish hue 54 cirrus 53 subtropics 53 temperature inversion 53 ITCZ 53 glaciations 53 lavas 53 visible wavelengths 53 hydrological cycle 53 polar regions 53 temperate regions 53 anisotropy 53 atmospheric turbulence 53 planetary nebulae 53 SSTs 52 solar corona 52 olivine 52 -# degrees Fahrenheit [002] 52 irradiance 52 atmospheric circulation 52 albedo 52 ridging 52 water vapor 52 minima 52 eastern equatorial Pacific 52 dewpoints 52 troposphere 52 sunspot activity 52 El Ninos 52 shorter wavelengths 52 tropics 52 temperate forests 52 volcanism 52 glacial melt 52 biogeochemical 52 meteoroids 52 hydrothermal activity 52 subarctic 52 Meridiani 51 continental crust 51 planktonic 51 northern latitudes 51 thermosphere 51 dust devils 51 isoprene 51 igneous rocks 51 habitable zones 51 humid tropical 51 WASP #b 51 unaided eye 51 latitudinal 51 icecap 51 easterlies 51 Pacific Decadal Oscillation 51 precipitations 51 magmas 51 acidic soils 51 airflows 51 plankton blooms 51 subtropical regions 51 La Nina cooling 51 constellation Leo 51 geomagnetic field 50 equatorial Pacific 50 Earthlike 50 cumulus clouds 50 basalts 50 radiative forcing 50 patchy clouds 50 warmer drier 50 anoxic 50 landmasses 50 marine sediments