abstract art adcp aerosol agriculture airborne aircraft air pollution alaska algae alluvial alps andes animals antarctica apennines arctic arctic ocean arid soils arizona art ash atacama desert atlantic ocean atmosphere atmospheric atmospheric monitoring atmospheric optics aurora aurora borealis australia austria autumn avalanche badlands baikal lake basalt beach biodiversity biomass burning birds blue calcification calcite calcium carbonate caldera california canada canyon carbon cycle carboniferous cave caves chile cirrus citizen observations city clay cliff climate climate change cloud clouds coast coastal coastal erosion cold soils color colors colour columnar basalt crater crevasse cropped soil cryosphere crystals cultural heritage cumulonimbus clouds cumulus danube delta dead dead sea death valley delta deposits desert drone drop drought dune dunefield dust dyke earth earthquake #earthsciweek ecology ecosystem education egu16 egu17 environment erosion eruption estuary etna evaporation fault field fieldwork field work fire fjord flood flower flysch fog fold folded layers forest forest fire forest soil fossil france frost frozen fuegored full moon fumarole geology geomorphology geophysics geothermal geothermal area germany geyser glacial lake glacial landscape glacier glacier retreat glaciers glacier tongue global warming gorge grand canyon granite graphic grass gravity waves great salt lake greenland gully erosion harz high mountains hiking hill himalaya hot spring hydrology ice iceberg ice cap ice cave ice cores iceland ice sheet india indonesia ireland iron irrigation island israel italy kamchatka karst laboratory lagoon lake lake surface landscape landslide lava lava flow layers lena river delta lenticular lichen lichens light lightning limestone limnogeology limnology macro magma manganese oxide marble mars mediterranean mediterranean sea mediterranean soils meeting melt meltwater metamorphism methane microbiotic crusts microscopy milky way mine mineral minerals mining moon moraine morocco moss mountain mountains mountain soils mud national park natural hazard natural hazards natural science nature new zealand night northern lights norway ocean olivine oman organic matter outcrop pacific ocean paleoclimate paleosoil peat peatland penguin people peridotite permafrost peru petrography petrology plant pollution pyrenees quartz rain rainbow rainfall rainforest red reflection remote sensing river road rock rocks rocky mountains romania russia saline-groundwater salt salt dome sand sandstone sarek science scotland sea sea ice sediment sedimentary rocks shadow shale siberia sinkhole sky slovenia snow soil soil aggregation soil biology soil erosion soil profile soils soil structure soil taxonomy soil texture soil water soil water repellency southern ocean spain speleology speleotherm splash spring stalactite stone stones storm stratification stratigraphy stratocumulus stream strombolian eruption structural geology structure students sun sunlight sunrise sunset svalbard sweden switzerland taiwan tectonics terra rossa thrust thunderstorm tibetan plateau tide tourism travel tree trees tundra unconformity urban usa utah valley vegetation view visibility volcanic bomb volcanic landscape volcanic rock volcanism volcano volcanology vulcano water waterfall waves weather weathering wetland white wildfire wildlife wind wind erosion winter yamal yellowstone