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The Global Geodetic Observing System (GGOS) is the response of the international geodetic community, organised under the International Association of Geodesy (IAG), to the need to continuously monitor the Earth system. GGOS observes the time-varying shape, rotation and gravity field of the Earth with respect to precise and long-term stable geodetic reference frames. Changes to these characteristics are inherently related to changes occurring within and between the Earth’s components (the geosphere, atmosphere, hydrosphere, cryosphere and biosphere). Geodesy is therefore an essential discipline for Earth system monitoring. GGOS was initiated in the 1990s with the aim of raising awareness of this new role of geodesy and making comprehensive, consistent, high-quality geodetic products available to other geosciences and society. Many developments have been achieved since then, but there are still unresolved challenges. This has led to the objectives and strategy for continuing the implementation of GGOS being adapted over time. This paper highlights ongoing initiatives, current strategic goals as well as key challenges for the future.

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Strategic Goals of the Global Geodetic Observing System (GGOS)

  • 章节

  • 出版模式：

    开放获取

  • 发表日期：

    2026年

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  • Laura Sánchez,
  • Anna Riddell,
  • Detlef Angermann,
  • Martin Sehnal,
  • Thomas Gruber,
  • José Rodríguez,
  • Richard Gross,
  • Martin Lidberg,
  • Allison Craddock,
  • Basara Miyahara,
  • George Vergos,
  • Claudia Tocho

摘要

The Global Geodetic Observing System (GGOS) is the response of the international geodetic community, organised under the International Association of Geodesy (IAG), to the need to continuously monitor the Earth system. GGOS observes the time-varying shape, rotation and gravity field of the Earth with respect to precise and long-term stable geodetic reference frames. Changes to these characteristics are inherently related to changes occurring within and between the Earth’s components (the geosphere, atmosphere, hydrosphere, cryosphere and biosphere). Geodesy is therefore an essential discipline for Earth system monitoring. GGOS was initiated in the 1990s with the aim of raising awareness of this new role of geodesy and making comprehensive, consistent, high-quality geodetic products available to other geosciences and society. Many developments have been achieved since then, but there are still unresolved challenges. This has led to the objectives and strategy for continuing the implementation of GGOS being adapted over time. This paper highlights ongoing initiatives, current strategic goals as well as key challenges for the future.