Geotechnical engineering Geotechnical Engineering & Applied Earth Sciences 250 Earth sciences 165 Earth Sciences 160 Geophysics 65 Geophysics/Geodesy 63 Engineering geology 46 Foundations 45 Geoengineering, Foundations, Hydraulics 45 Hydraulics 45 Geology 42 Engineering 38 Earth Sciences, general 33 Hydrogeology 32 Civil Engineering 31 Civil engineering 31 Remote Sensing/Photogrammetry 25 Remote sensing 25 Mineral Resources 23 Mines and mineral resources 23 Fossil Fuels (incl. Carbon Capture) 22 Fossil fuels 22 Ecology 21 Adaptation (Biology) 18 Economic Geology 18 Euthenics 18 Geography 18 Geology, Economic 18 Nature and nurture 18 Oceanography 18