The activities started in 2008 with an IAG Inter-Commission Project and have been continued as Joint Working Group with IGFS, BGI and IGETS in IAG Subcommission 2.1 on Terrestrial Gravimetry.
The basis of the activities is documented below.
Resolutions
2023 Berlin: IAG Resolution for the International Terrestrial Gravity Reference System (ITGRS)
2015 Prague: IAG Resolution 2: Establishment of a global absolute gravity reference system
Role of CCM and IAG
CCM – IAG Strategy for Metrology in Absolute Gravimetry 11 March 2014
Terms of Reference
JWG 2.1.1: Development of the International Terrestrial Gravity Reference Frame: 2023-2027
JWG 2.1.1: Establishment of the International Gravity Reference Frame: 2019-2023
JWG 2.1.1: Establishment of a Global Absolute Gravity Reference System: 2015-2019
JWG 2.2: Absolute Gravimetry and Absolute Gravity Reference System: 2011-2015
Minutes of Working Group Meetings
Webmeeting 16. July 2026: Presentation
Webmeeting 17. February 2026: Presentation
IAG 2025 Rimini, Italy, 3. September 2025: Minutes | Presentation
GGHS 2024 Thessaloniki, Greece, 5. September 2024: Minutes | Presentation
IUGG 2023 Berlin, Germany, 14. July 2023: Presentation
Web-Meeting 11. May 2023: Presentation
Web-Meeting 22. February 2023: Minutes Presentation
Name and Acronym 25. February 2022: Presentation (IAG EC) | Discussion
Web-Meeting 18. January 2022: Presentation
Web-Meeting 20. October 2021: Minutes | Presentation
Web-Meeting 17. March 2021: Minutes | Presentation
EGU General Assembly in Vienna, Austria, 10. April 2019: Minutes | Presentation
GGHS 2, Copenhagen, Denmark, 20 September 2018: Minutes | Presentation
EGU General Assembly in Vienna, Austria, 11. April 2018: Minutes | Presentation
EGU General Assembly in Vienna, Austria 27. April 2017: Minutes | Presentation
GGHS Thessaloniki, Greece, 20. September 2016: Minutes | Presentation
Vienna, Austria, 14‐15 February, 2012: Minutes
St. Petersburg, Russia, 23.06.2010: Minutes
Chania, Greece, 24. June 2008: Circular | Minutes | Presentation