| Atmospheric Composition and Structure | 1878 Water/energy interactions | 4546 Nearshore processes |
| 0305 Aerosols and particles | 1886 Weathering | 4548 Ocean fog and aerosols |
| 0310 Airglow and aurora | 1890 Wetlands | 4560 Surface waves and tides |
| 0312 Air/sea constituent fluxes | Interplanetary Physics | 4568 Turbulence, diffusion, and mixing processes |
| 0315 Biosphere/atmosphere interactions | 2104 Cosmic rays | 4572 Upper ocean processes |
| 0317 Chemical kinetic & photochemical properties | 2162 Solar cycle variations | Oceanography: Biological and Chemical |
| 0320 Cloud physics and chemistry | Ionosphere | 4801 Aerosols |
| 0322 Constituent sources and sinks | 2415 Equatorial ionosphere | 4802 Anoxic environments |
| 0325 Evolution of the atmosphere | 2419 Ion chemistry and composition | 4805 Biogeochemical cycles |
| 0330 Geochemical cycles | 2423 Ionization mechanisms | 4806 Carbon cycling |
| 0335 Ion chemistry of the atmosphere | 2427 Ionosphere/atmosphere interactions | 4815 Ecosystems, structure and dynamics |
| 0340 Middle atmosphere--composition and chemistry | 2435 Ionospheric disturbances | 4820 Gasses |
| 0341 Middle atmosphere--constituent transport and chemistry | 2437 Ionospheric dynamics | 4825 Geochemistry |
| 0342 Middle atmosphere--energy deposition | 2443 Midlatitude ionosphere | 4845 Nutrients and nutrient cycling |
| 0343 Planetary atmospheres | 2447 Modeling and forecasting | 4850 Organic marine chemistry |
| 0345 Pollution--urban and regional | 2459 Planetary ionospheres | 4851 Oxidation/reduction reactions |
| 0350 Pressure, density, and temperature | 2475 Polar cap ionosphere | 4852 Photochemistry |
| 0355 Thermosphere--composition and chemistry | 2479 Solar radiation and cosmic ray effects | 4853 Photosynthesis |
| 0358 Thermosphere--energy deposition | Mathematical Geophysics | 4855 Plankton |
| 0360 Transmission and scattering of radiation | 3210 Modeling | 4857 Pollution |
| 0365 Troposphere--composition and chemistry | 3220 Nonlinear dynamics | 4860 Radioactivity and radioisotopes |
| 0368 Troposphere--constituent transport and chemistry | 3230 Numerical solutions | 4870 Stable isotopes |
| 0370 Volcanic effects | 3240 Chaos | Planetology: Solid Surface Planets |
| 0394 Instruments and techniques | 3250 Fractals and multifractals | 5405 Atmospheres--composition and chemistry |
| Geochemistry | 3260 Inverse theory | 5407 Atmospheres--evolution |
| 1010 Chemical evolution | Meteorology and Atmospheric Dynamics | 5409 Atmospheres--structure and dynamics |
| 1030 Geochemical cycles | 3304 Atmospheric electricity | 5435 Ionospheres |
| 1035 Geochronology | 3307 Boundary layer processes | 5445 Meteorology |
| 1040 Isotopic composition/chemistry | 3309 Climatology | 5464 Remote Sensing |
| 1045 Low-temperature geochemistry | 3314 Convective processes | Planetology: Fluid Planets |
| 1050 Marine geochemistry | 3319 General circulation | 5704 Atmospheres--composition and chemistry |
| 1055 Organic geochemistry | 3322 Land/atmosphere interactions | 5705 Atmospheres--evolution |
| 1060 Planetary geochemistry | 3324 Lightning | 5707 Atmospheres--structure and dynamics |
| Geodesy and Gravity | 3329 Mesoscale meteorology | 5729 Ionospheres |
| 1223 Ocean/Earth/atmosphere interactions | 3332 Mesospheric dynamics | 5739 Meteorology |
| Global Change | 3334 Middle atmosphere dynamics | 5757 Remote sensing |
| 1610 Atmosphere | 3337 Numerical modeling and data assimilation | Planetology: Comets and Small Bodies |
| 1615 Biogeochemical processes | 3339 Ocean/atmosphere interactions | 6005 Atmospheres--composition and chemistry |
| 1620 Climate dynamics | 3344 Paleoclimatology | 6006 Atmospheres--evolution |
| 1625 Geomorphology and weathering | 3346 Planetary meteorology | 6007 Atmospheres--structure and dynamics |
| 1630 Impact phenomena | 3349 Polar meteorology | 6026 Ionospheres--composition & chemistry |
| 1635 Oceans | 3354 Precipitation | 6027 Ionospheres--evolution |
| 1640 Remote sensing | 3359 Radiative processes | 6028 Ionospheres--structure and dynamics |
| 1645 Solid Earth | 3360 Remote sensing | 6061 Remote Sensing |
| 1650 Solar variability | 3362 Stratosphere/troposphere interactions | Radio Science |
| 1655 Water cycles | 3364 Synoptic-scale meteorology | 6904 Atmospheric propagation |
| 1694 Instruments and techniques | 3367 Theoretical modeling | 6929 Ionospheric physics |
| History of Geophysics | 3369 Thermospheric dynamics | 6934 Ionospheric propagation |
| 1704 Atmospheric sciences | 3374 Tropical meteorology | 6944 Nonlinear phenomena |
| 1709 Geodesy | 3379 Turbulence | 6952 Radar atmospheric physics |
| 1719 Hydrology | 3384 Waves and tides | 6969 Remote sensing |
| 1724 Ocean sciences | 3394 Instruments and techniques | Solar Physics, Astrophysics, and Astronomy |
| 1729 Planetology | Oceanography: General | 7529 Photosphere |
| 1739 Solar/planetary relationships | 4215 Climate and interannual variability | 7536 Solar activity cycle |
| 1749 Volcanology, geochemistry, & petrology | 4227 Diurnal, seasonal, and annual cycles | 7538 Solar irradiance |
| Hydrology | 4231 Equatorial oceanography | 7549 Ultraviolet emissions |
| 1803 Anthropogenic effects | 4235 Estuarine processes | Space Plasma Physics | 1806 Chemistry of fresh water | 4239 Limnology | 7823 Ionization processes |
| 1809 Desertification | 4247 Marine meteorology | 7839 Nonlinear phenomena |
| 1812 Drought | 4251 Marine pollution | 7847 Radiation processes |
| 1818 Evapotranspiration | 4267 Paleoceanography | 7853 Spacecraft/atmosphere interactions |
| 1833 Hydroclimatology | 4279 Upwelling and convergences | 7859 Transport processes |
| 1836 Hydrologic budget | Oceanography: Physical | 7863 Turbulence | 1854 Precipitation | 4504 Air/sea interactions | Volcanology |
| 1857 Reservoirs (surface) | 4522 El Niņo | 8404 Ash deposits |
| 1866 Soil moisture | 4532 General circulation | 8409 Atmospheric effects |
| 1871 Surface water quality | 4540 Ice mechanics and air/sea/ice exchange processes | 8424 Hydrothermal systems |