Artist's impression of the icy surface of Pluto, with atmospheric haze and the faint Sun in the sky. Credit: ESO/L. Calçada.
Artist’s impression of the icy surface of Pluto, with atmospheric haze and the faint Sun in the sky.
Credit: ESO/L. Calçada.

Honorary Member


The Bureau may nominate persons who have given outstanding service to IACS to a Plenary Administrative Session for recognition as “Honorary Members of IACS”. See IACS Statutes


Ian Allison (right) is awarded Honorary Membership in Montreal in July 2019; presented by IACS President Regine Hock

What are Working Groups?


Any IACS Member can submit a proposal to the IACS Bureau to initiate a Working Group (WG). WGs address scientific problems of the cryosphere that are timely and well constrained.WGs shall have explicit aims, objectives, milestones and deliverables. They should be international in composition. They shall define the instruments, for example workshops and conferences, which they will use to achieve their aims and objectives. Working Groups will normally be limited to up to four years duration. They may be renewed for up to a further four years in exceptional circumstances. Working Groups report annually to the Bureau through the appropriate IACS Head of Division. The chair, co-chairs, and all of Working Group members must be IACS members. See the Terms of Reference (ToR) for further information.

What are Standing Groups?


IACS Standing Groups address scientific problems of the cryosphere that require medium- to long-term reflection. Standing Groups shall have well considered aims, objectives, milestones and deliverables and should be international in composition. Standing Group activities could include, for example, monitoring, databasing, and dissemination of cryospheric information. Standing Groups will normally have a life-time of eight years. See the Terms of Reference (ToR) for further information.

IACS Bureau

New Bureau 2019-2023

IACS is organized as a bureau that consists of a President, the Secretary General, the President-elect and immediate Past-President, three Vice-Presidents, and the Heads of the 5 Divisions who may be seconded by deputies.


Bureau Meeting in Christchurch, New Zealand, Feb. 2017