Union Symposia which cover a wide range of themes of concern to the eight Associations. Invited speakers feature in these Symposia, supported by poster presentations selected by the convenors from those submitted. Several of the Union Symposia are expanded or followed in greater depth in Joint Symposia or in Association Symposia
Joint Symposia with keynote speakers and scientists whose presentations (which consist of oral and poster presentations) are accepted by the session convenors. The themes have been devised by at least two Associations, one of which is the lead Association. Some Joint Symposia are developed further separately in Association Symposia and Workshops.
Association Symposia with keynote speakers and scientists whose presentations (which consist of oral and poster presentations) are accepted by the session convenors. The eight ( 8 ) Associations are:
IACS International Association of Cryospheric Sciences
IAG International Association of Geodesy
IAGA International Association of Geomagnetism and Aeronomy
IAHS International Association of Hydrological Sciences
IAMAS International Association of Meteorology and Atmospheric Science
IAPSO International Association for the Physical Sciences of the Oceans
IASPEI International Association of Seismology and Physics of the Earth’s Interior
IAVCEI International Association of Volcanology and Chemistry of the Earth’s Interior
