Related by context. Frequent words. (Click for all words.) 68 tropospheric 63 biogeochemical 62 SSTs 62 radiative forcing 62 decadal 60 atmospheric CO 59 isotope ratios 59 solar irradiance 58 fluxes 58 El Niños 58 polar vortex 58 marine sediments 58 terrestrial ecosystems 57 ENSO 57 Variability 56 temperature gradient 56 paleoclimate 56 variability 56 geoid 56 atmospheric circulation 56 dynamical 56 abundances 56 latitudinal 56 hydrological cycle 55 perturbation 55 isotopic composition 55 magmatic 55 bathymetry 55 atmospheric chemistry 55 mid latitudes 55 electron density 55 anisotropy 55 glacial melt 55 crustal 55 upwellings 55 aerosol particles 54 isotopic 54 cryosphere 54 irradiance 54 numerical modeling 54 climatological 54 planktonic 54 synoptic 54 ocean salinity 54 glacial melting 54 atmospheric methane 54 equatorial Pacific Ocean 54 perturbations 54 foraminifera 54 oxygen isotopes 54 convective 54 ionospheric 53 elemental composition 53 lithosphere 53 numerical simulations 53 troposphere 53 cirrus clouds 53 magmas 53 Fig. 1A 53 Rignot 53 nitrogen fixation 53 amplitudes 53 sunspot cycle 53 hydrothermal activity 53 cirrus 53 Polar Regions 52 Turbidity 52 insolation 52 radiative 52 solar corona 52 poleward 52 glacial retreat 52 anisotropic 52 trophic 52 sunspot activity 52 Pacific Decadal Oscillation 52 eastern equatorial Pacific 52 El Ninos 52 igneous rocks 52 vertical wind shear 52 Quaternary 52 albedo 51 covariance 51 glaciations 51 quadratic 51 AR4 51 Conductivity 51 osmium 51 auroral 51 geomagnetic 51 geomorphology 51 X ray emission 51 basalts 51 lavas 51 climate modelers 51 stratospheric ozone 51 Younger Dryas 51 anomalously 50 oscillatory 50 Relative humidity 50 magnetic reconnection