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U.S. National Committee for Geodesy and Geophysics

The U.S. National Committee for Geodesy and Geophysics (USNC/IUGG) promotes the advancement of geophysical and geodetical sciences in the United States and throughout the world by participating in the activities of the International Union of Geodesy and Geophysics (IUGG).

The USNC/IUGG serves to advance geodesy and geophysics in the United States and throughout the world by:

  • Representing the interests of the U.S. sciences community in all activities of the International Union of Geodesy and Geophysics (IUGG) and its eight component Associations on behalf of the National Academy of Sciences (NAS), the U.S. adhering body to the IUGG.
  • Fostering collaborative research through the organization and sponsorship of scientific sessions and meetings in the U.S. and abroad.
  • Encouraging and supporting participation and service by U.S. scientists in international bodies organized under the IUGG and its Associations.
  • Sending voting delegates as representatives of the U.S. geophysical community to IUGG-sponsored international congresses and General Assemblies.
  • Supporting the engagement of early career U.S. scientists in international scientific activities and organizations.


Register for the AGU 2018 Fall Meeting in Washington, DC
The annual Fall Meeting of the AGU, "What Science Stands For," will be held December 10--14, 2018 in Washington, DC. Register for the meeting by November 7 for the discounted early bird rate:

IUGG Movie Highlights Need for Natural Disaster Research
As climate change leads to more intense weather patterns, the potential for costly national disasters is of great concern. The following video from the IUGG stresses the importance of geodesy and geophysics research around the world.

International Decade for Action 2018 -2028
World Water Day, which is observed annually on March 22 was especially significant in 2018. March 22, 2018 began the International Decade for Action: Water for Sustainable Development. This decade, closing on March 22, 2028, marks a focus on sustainable water resources and issues of water scarcity, urbanization, population growth, and climate change. For more information, visit  

Recent Scientific Assemblies of IUGG Associations in 2017
International Association of Hydrological Sciences (IAHS)
"Water and Development: Scientific Challenges in Addressing Societal Issues" 2017 Scientific Assembly
Port Elizabeth, South Africa
Assembly Dates: July 10 - 14, 2017

International Association of Geodesy (IAG) and International Association of Seismology and Physics of the Earth's Interior (IASPEI)
2017 Joint Assembly
Kobe International Conference Center in Kobe, Japan
Assembly Dates: July 30 - August 4, 2017

International Association of Volcanology and Chemistry of the Earth's Interior (IAVCEI)
"Fostering Integrative Studies of Volcanism" 2017 Scientific Assembly
Oregon Convention Center in Portland, Oregon, USA.
Assembly Dates: August 14 - 18, 2017

International Association of Meteorology and Atmospheric Sciences (IAMAS), International Association for the Physical Sciences of the Oceans (IAPSO), and International Association of Geomagnetism and Aeronomy (IAGA)
"Good Hope for Earth Sciences" 2017 Joint Assembly
Cape Town International Convention Centre (CTICC) in Cape Town, South Africa
Assembly Dates: August 27 - September 1, 2017

Arctic Matters Day Held at NAS Building
The Polar Research Board of the National Academies of Sciences, Engineering, and Medicine held its “Arctic Matters Day” on Thursday, January 14, 2016 in the NAS Building at 2101 Constitution Avenue, Washington, DC.  The event was part of a larger initiative to raise awareness about rapid change in the Arctic and how it affects us all, including our coastlines, weather, ecosystems, and more.  The agenda featured lively “TED-like” talks from top experts who study Arctic change, artistic displays, and interactive exhibits. Please take a look at our free Arctic Matters educator resources, including a booklet, classroom poster, and interactive web tool on the Arctic Matters website

IUGG Resolution Stresses Global Research on Environmental Disruption
An Earth and Space Science News (EOS) review highlights a proposal for increased global research on "potentially disruptive environmental consequences and extremes" adopted at the 2015 IUGG General Assembly. Other resolutions, seven in total, included strengthening research efforts in ocean modeling and energy resources to combat climate change.

Earth and Space Science News Article Examines IAVCEI Initiative 
Following the 2015 IUGG General Assembly in Prague, Earth and Space Science News (EOS) has released an article detailing the IAVCEI's particular attention to volcanic landscapes. The article explores various goals of the newly-formed Commission on Volcano Geoheritage and Protected Volcanic Landscapes (VGPL), including the creation of a volcanic science "knowledge hub" and protection of designated UNESCO World Heritage sites.

2015 IUGG General Assembly in Prague, Czech Republic
The Institute of Geophysics of the Academy of Sciences of the Czech Republic and the Czech National Committee of Geodesy and Geophysics hosted the XXVI General Assembly of the International Union of Geodesy and Geophysics (IUGG) from June 22 to July 2, 2015. This multi-disciplinary conference covered the topics of all eight scientific associations of the IUGG. Conference details can be found on the XXVI IUGG General Assembly website






Activities and Events

IUGG International Webpage

Contact the USNC/IUGG

Ester Sztein, Assistant Director
Pam Gamble, Administrative Associate

2016 AGU Session (PDF):
"The U.S. Government Role in Preserving Geoscience Sample and Data Collections" by Ester Sztein

December 16, 2015 AGU Session (PDF):
"Arctic Science Diplomacy: Opportunities for International Collaboration and Policy-Engaged Scholarship" by Ester Sztein and Melody Brown Burkins

February 15, 2014 AAAS Session: “Santa’s Revenge: The Impacts of Arctic Warming on the Mid-Latitudes”

December 12, 2013 AGU Session (PDF): “Science Diplomacy in the Geosciences”

February 15, 2013 AAAS Session: “U.S. Climate and Weather Extremes: Past, Present, and Future"

December 7, 2012 AGU Town Hall (PDF): “International Geoscience”

February 19, 2012 AAAS Session: “Causes and Effects of Relative Sea-Level Changes in the Northeast Pacific"

February 17, 2012 AAAS Session: “Toward Stabilization of Net Global Carbon Dioxide Levels"

February 20, 2011 AAAS Session: “The Practice of Science Diplomacy in the Earth Sciences”

February 19, 2010 AAAS Session: "Dust in the Earth System"

December 17, 2009 AGU Poster Sessions: “Extreme Natural Hazards: Risk Assessment, Forecasting, and Decision Support”

February 16, 2009 AAAS Session: "Global Sea Level Rise: Observation, Causes, and Prediction"

September 25, 2008 BISO Symposium (PDF): “Global Connections among Earth Sciences, Health, and Policy"

February 15, 2008 AAAS Session (PDF): "Planet Earth: Lessons Ignored, Lessons Learned”

This material is based upon work supported by the National Science Foundation under Grant Number ICER-1312037. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.

Banner Photo Credits: Geologist Kruawun Jankaew in research pit (Brian Atwater); Alaska's Pavlof Volcano (Steve McNutt); Scientists opening a trench across the San Andreas fault (Lisa Grant Ludwig); Arctic overlook (Steve McNutt)

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