
REFAG 2022 – Symposium on Reference Frames for Applications in Geoscience
The REFAG 2022 carries on the tradition of previous IAG dedicated symposia on Reference Frames, aiming to bring together leading experts from academia, public authorities and private sector with young scientists and students, to discuss current achievements and future prospects of geodetic reference frames and their scientific and societal impact. Don't miss to participate in this great symposium.

Geodetic Observation:
Measure Gravity with Atoms
Quantum gravimetry measures the acceleration of gravity, by using freely falling atoms as test masses. They were development for 30 years.
Measure Gravity with Atoms

Geodetic Observation:
Measure Heights with Clocks
Measure heights by clocks with an accuracy of 4 cm over a height difference of 450 m is now possible. Discover this new geodetic technique ...
Measure Heights with Clocks

New eBook:
One-mm Accuracy Unified Geocentric
Terrestrial Reference System
A new eBook with the title "How to establish and maintain a one-mm accuracy unified Geocentric Terrestrial Reference System - A theoretical model" was now published.
One-mm Accuracy Unified Geocentric
Terrestrial Reference System

Mission Earth – Geodynamics and Climate Change Observed Through Satellite Geodesy
How does your cell phone know where you are right now? How is our planet changing due to geodynamic processes and ongoing climate change? How can these changes be precisely measured from space?

Book Review – Mission Earth
Read this book review by Hansjörg Kutterer about the recently published "Mission Earth" book about the science of measuring the Earth.

GGOS Product:
Terrestrial Reference Frame
How can we provide a stable reference for measuring changes of our planet?
Terrestrial Reference Frame

Discover GGOS – The Film
Do you know what geodesy is exactly and what GGOS does? This film immerses you in the world of geodesy and outlines its benefits for society.

New Article on Geodesy and Quantum Mechanics
Recently in December 2021 an article was published in the EOS magazine to dive into this interesting scientific part. It is definitely worth reading ...

GGOS Newsletter – New Design
The new GGOS newsletter will be sent out at the beginning of each month containing latest News and upcoming Events. Furthermore the design of the new GGOS newsletter has been improved and modernized.