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GGOS

Global Geodetic Observing System

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Discover GGOS and Geodesy

GGOS monitors global changes through geodesy

The Global Geodetic Observing System (GGOS) of the International Association of Geodesy (IAG) provides the essential framework for accurate measurements and consistent modelling and interpretation of Earth system processes and interactions, including global change, Earth deformation, and mass exchange between and within the geosphere, biosphere, cryosphere, hydrosphere and atmosphere. GGOS provides a framework of geodetic observation infrastructure and expertise to analyze observational data and produce geodetic products that serve science and society.

 
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All 8 /BGI 0 /Com1 0 /Com2 0 /Com3 0 /Com4 0 /Commissions 0 /ECS 0 /GGOS 5 /IAG 0 /ICCC 0 /ICCM 0 /ICCs 0 /ICCT 0 /ICGEM 0 /IDEMS 0 /IDS 1 /IERS 0 /IGETS 0 /IGFS 0 /IGS 1 /ILRS 2 /ISG 0 /IUGG 0 /IVS 1 /Other 0 /Project QuGe 0 /Projects 0 /PSMSL 0 /Services 0 /🌍 Geodesy News 0 /🏛️ Organisation News 0 /📅 Event Update 0 /📰 General News 0

The Visibility Challenge of Geodesy

October 7, 2025/by admin

Highlights from 1st GGOS IberAtlantic Summer School

September 19, 2025/by admin

IGS Workshop 2026

September 11, 2025/by admin

IDS DORIS School | DORIS Days 2025

September 10, 2025/by admin

16th SIRGAS School: “VLBI and SLR Data Processing”

September 9, 2025/by admin

Geodesy Cartoon Competition

August 30, 2025/by admin

Satellite Laser Ranging – How SLR Powers Geodesy

August 26, 2025/by admin

South African National Geodesy Workshop

August 25, 2025/by admin
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GGOS Upcoming Events

AGU25 – GGOS Session

15 December - 19 DecemberNew Orleans, USA
UAW REFAG Munich 2026

Munich 2026 | REFAG Symposium + Unified Analysis Workshop UAW

2 March 2026 - 6 March 2026LDBV – Landesamt für Digitalisierung, Breitband und Vermessung
Geodesy Reception 2025 EGU

IAG Geodesy Reception 2026

4 May 2026 - 7 May 2026BEV – Federal Office of Metrology and Surveying

IGS Workshop 2026

1 June 2026 - 5 June 2026InterContinental Hotels Santiago
Sweden

GGOS Days 2026 + GGOS Topical Meeting on Geohazards

1 October 2026 - 7 October 2026€1000 - Gävle, Sweden
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IAG as part of the IUGG

  
The International Association of Geodesy (IAG)  is a constituent association of the International Union of Geodesy and Geophysics (IUGG).

IAG Related Organisations

IAG collaborates closely with numerous organizations within geodesy and beyond. See the list for details.

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