International Association for
the Physical Sciences of the Oceans (IAPSO)

At the First IUGG General Assembly (Rome, 1922), the Section d'Océanographie became one of the constituent Sections of the Union. At the IV IUGG General Assembly (Stockholm, 1930) it became the International Association of Physical Oceanography.
It took its present name at the XIV IUGG General Assembly (Zurich, 1967).

IAPSO promotes the study of the physical sciences of the oceans and the interactions taking place at the sea floor, coastal, and atmospheric boundaries by organising international forums and publishing written materials for ocean scientists throughout the world. Commissions, sub-committees, and workshops encourage new and advanced international research activities. In addition, IAPSO provides basic services such as the Permanent Service for Mean Sea Level and the IAPSO Standard Seawater Service. IAPSO collaborates closely with UNESCO's Intergovernmental Oceanographic Commission (IOC) and ICSU's Scientific Committee on Oceanic Research (SCOR). The president of IAPSO is a member of the SCOR Executive Committee as is the president of IAMAS.

IAPSO has International Commissions on the following topics:

  • Mean Sea Level and Tides
  • Properties of sea water (Joint with SCOR and IAPWS)
  • Tsunami Commission (Joint with IASPEI and IAVCEI)
  • Georisk Commission (Joint with IAMAS, IAHS, IASPEI and IAVCEI)
  • International Ocean Network (Joint with IASPEI and IAGA)

and an active working group (joint with SCOR):

  • SCOR/IAPSO Working Group 145 on Chemical Speciation Modelling in Seawater to Meet 21st Century Needs (MARCHEMSPEC)

Contact Information

Stefania SPARNOCCHIA, IAPSO Secretary General

CNR - Istituto di Scienze Marine
Viale Romolo Gessi 2
34123 Trieste

IAPSO website: