International Union of Geodesy and Geophysics

The International Union of Geodesy and Geophysics (IUGG; French: Union géodésique et géophysique internationale, UGGI) is an international non-governmental organisation dedicated to the scientific study of the Earth and its space environment using geophysical and geodetic techniques.

International Union of Geodesy and Geophysics
Formation1919 (1919)
  • Potsdam, Germany
Region served
Official language
English, French
Michael Sideris (Canada)
Vice President
Kathryn Whaler (UK)
Secretary General
Alik Ismail-Zadeh (Germany/Russia)
Aksel W. Hansen (Denmark)
WebsiteIUGG Official website

The IUGG was established in Brussels, Belgium in 1919.[1][2][3][4] Some areas within its scope are environmental preservation, reduction of the effects of natural hazards, and mineral resources.


IUGG's objectives are the promotion and coordination of studies related to Earth's physical, chemical and mathematical representation. This includes geometrical shape, internal structure, gravity and magnetic fields, seismicity, volcanism, hydrologic cycle, glaciers, oceans, atmosphere, ionosphere, and magnetosphere of Earth. It also includes solar, lunar and planetary studies.[5]


The IUGG consists of eight semi-autonomous associations:[6]

It has also established six commissions to promote interdisciplinary problems:[7]

  • Climatic and Environmental Changes (CCEC)
  • Mathematical Geophysics (CMG)
  • Geophysical Risk and Sustainability (GRC)
  • Study of the Earth's Deep Interior (SEDI)
  • Data and Information (UCDI)
  • Planetary Sciences (UCPS)

and the Union Working Group on History.

General Assemblies, Presidents, and Secretaries General

List of General Assemblies, Presidents, and Secretaries-General.[8]

Nr.YearGeneral Assembly inPresidentSecretary-General
27.2019Montreal Canada
26.2015Prague Czech Republic2015-2019Michael Sideris Canada2015-2019Alik Ismail-Zadeh Germany Russia
25.2011Melbourne Australia2011-2015Harsh Gupta India2011-2015Alik Ismail-Zadeh Germany Russia
24.2007Perugia Italy2007-2011Tom Beer Australia2007-2011Alik Ismail-Zadeh Germany Russia
23.2003Sapporo Japan2003-2007Uri Shamir Israel2003-2007JoAnn Joselyn United States
22.1999Birmingham United Kingdom1999-2003Masaru Kono Japan1999-2003JoAnn Joselyn United States
21.1995Boulder United States1995-1999P.J. Wyllie United States1995-1999Georges Balmino France
20.1991Vienna Austria1991-1995H. Moritz Austria1991-1995Georges Balmino France
19.1987Vancouver Canada1987-1991V.I. Keilis-Borok Soviet Union1987-1991Baron Paul Melchior Belgium
18.1983Hamburg West Germany1983-1987D. Lal India1983-1987Baron Paul Melchior Belgium
17.1979Canberra Australia1979-1983G.D. Garland Canada1979-1983Baron Paul Melchior Belgium
16.1975Grenoble France1975-1979A. Ashour Egypt1973-1979Baron Paul Melchior Belgium
15.1971Moscow Soviet Union1971-1975H. Charnock United Kingdom1973-1991Baron Paul Melchior Belgium
14.1967Zurich  Switzerland1967-1971J. Coulomb France1967-1973G.D. Garland Canada
13.1963Berkeley United States1963-1967J. Kaplan United States1963-1967G.D. Garland Canada
12.1960Helsinki Finland1960-1963V.V. Beloussov Soviet Union1960-1963G.R. Laclavère France
11.1957Toronto Canada1957-1960J.T. Wilson Canada1957-1960G.R. Laclavère France
10.1954Rome Italy1954-1957K.R. Ramanathan India1954-1957G.R. Laclavère France
9.1951Brussels Belgium1951-1954S. Chapman United Kingdom1951-1954G.R. Laclavère France
8.1948Oslo Norway1948-1951F.A. Vening Meinesz Netherlands1946-1951J.M. Stagg United Kingdom
7.1939Washington DC United States1946-1948B. Helland-Hansen Norway1939-1946H. St. J.L. Winterbotham United Kingdom
6.1936Edinburgh United Kingdom1936-1942D. La Cour Denmark1936-1939H. St. J.L. Winterbotham United Kingdom
5.1933Lisbon Portugal1933-1936W. Bowie United States1933-1936H. St. J.L. Winterbotham United Kingdom
4.1930Stockholm Sweden1919-1933C. Lallemand France1930-1933H. St. J.L. Winterbotham United Kingdom
3.1927Prague Czechoslovakia1919-1933C. Lallemand France1927-1930Sir Henry Lyons United Kingdom
2.1924Madrid Spain1919-1933C. Lallemand France1924-1927Sir Henry Lyons United Kingdom
1.1922Rome Italy1919-1933C. Lallemand France1919-1924Sir Henry Lyons United Kingdom

See also


  1. Lyons, Henry G. (1919). "The Brussels Meeting of the International Research Council". Nature. 103 (2598): 464–466.
  2. Cochrane, Rexmond C. (1978). The National Academy of Sciences: The First Hundred Years, 1863-1963. National Academies.
  3. Good, Gregory A. (2000). "The Assembly of Geophysics: Scientific Disciplines as Frameworks of Consensus". Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics. 31 (3): 259–292. Bibcode:2000SHPMP..31..259G. doi:10.1016/S1355-2198(00)00018-6.
  4. Ismail-Zadeh, Alik (2016). "Geoscience international: the role of scientific unions". History of Geo- and Space Sciences. 7: 103–123.
  5. Burchfiel, B. C. (1987) International Role of U.S. Geoscience US National Academies page 32
  6. "Associations of the IUGG". International Union of Geodesy and Geophysics. Retrieved 2 May 2014.
  7. "Union Commissions". International Union of Geodesy and Geophysics. Retrieved 2 May 2014.
  8. IUGG - Bureau of the Union. Retrieved 01/07/2015.

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