Related by context. Frequent words. (Click for all words.) 68 solar irradiance 64 sunspot cycle 64 polar vortex 64 ionospheric 63 sunspot activity 63 radiative forcing 63 irradiance 63 aerosol particles 62 albedo 62 mid latitudes 61 solar corona 61 solar nebula 61 Cepheids 61 radiative 61 electron density 60 auroral 60 atmospheric methane 60 X ray emission 60 poleward 60 atmospheric circulation 59 troposphere 59 atmospheric CO 59 insolation 58 dynamical 58 WASP #b 58 cirrus clouds 58 magnetic reconnection 58 water vapor 58 isotopic composition 58 cirrus 58 photometry 58 periodicity 58 greenhouse warming 58 hydrological cycle 58 temperature gradient 57 oxygen isotopes 57 cosmic ray 57 biogeochemical 57 ejecta 57 Earth magnetosphere 57 geomagnetic 57 cryosphere 57 abundances 57 atmospheric turbulence 57 sunspots 57 paleoclimate 56 atmospheric 56 decadal 56 thermosphere 56 aurorae 56 Hubble observations 56 sunspot numbers 56 anisotropy 55 -# degrees Fahrenheit [002] 55 visible wavelengths 55 convective 55 radial velocity 55 fluxes 55 ionisation 55 geomagnetic field 55 spectrographs 55 ionosphere 55 ENSO 55 GeV 55 interplanetary spacecraft 55 atmospheric chemistry 55 shorter wavelengths 55 oscillations 55 atmospheric CO2 55 CO2 concentrations 55 excitations 54 astrophysical 54 airflows 54 polar caps 54 infrared wavelengths 54 lithosphere 54 Cosmic rays 54 magnetosphere 54 gravitational lensing 54 occultation 54 terrestrial ecosystems 54 meteoroid 54 perturbations 54 observable universe 54 atmospheric carbon dioxide 54 magnetic flux 54 glacial melt 54 perturbation 54 coronal 54 redshifts 54 ocean salinity 54 evapotranspiration 54 Brownian motion 54 reflectivity 54 SSTs 54 z = 54 quantum entanglement 54 emissivity 53 hydrothermal activity 53 reflectance 53 greenhouse gas concentrations