- US – Union Symposia
- EOS – Educational and Outreach Symposia
- ML – Medal Lectures
- GL – Lectures for a general geoscience audience
- KL – Keynote Lectures
- AS – Atmospheric Sciences
- BG – Biogeosciences
- CL – Climate: Past, Present, Future
- CR – Cryospheric Sciences
- EMRP – Earth Magnetism & Rock Physics
- ERE – Energy, Resources and the Environment
- ESSI – Earth & Space Science Informatics
- G – Geodesy
- GD – Geodynamics
- GI – Geosciences Instrumentation & Data Systems
- GM – Geomorphology
- GMPV – Geochemistry, Mineralogy, Petrology & Volcanology
- HS – Hydrological Sciences
- NH – Natural Hazards
- NP – Nonlinear Processes in Geosciences
- OS – Ocean Sciences
- PS – Planetary & Solar System Sciences
- SM – Seismology
- SSP – Stratigraphy, Sedimentology & Palaeontology
- SSS – Soil System Sciences
- ST – Solar-Terrestrial Sciences
- TS – Tectonics & Structural Geology