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REFAG 2022 – Symposium on Reference Frames for Applications in Geoscience

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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.
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Geodetic Observation:
Measure Gravity with Atoms

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Quantum gravimetry measures the acceleration of gravity, by using freely falling atoms as test masses. They were development for 30 years.

REFAG 2022 – Call for papers

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IAG International Symposium on Reference Frames for Applications in Geosciences (REFAG 2022), Thessaloniki, Greece, October 17-20, 2022
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Geodetic Observation:
Measure Heights with Clocks

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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 ...
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IAG Statement on Ukraine

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The International Association of Geodesy and its services strongly condemn the unprovoked and premeditated Russian invasion of Ukraine. We are deeply troubled by the loss of life and hundreds of thousands of civilians becoming refugees, and are very concerned about the safety and well-being of our scientific colleagues in Ukraine. We strongly request that the responsible people stop the military actions immediately.
© Per Helge Andersen

New eBook:
One-mm Accuracy Unified Geocentric
Terrestrial Reference System

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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.
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Mission Earth – Geodynamics and Climate Change Observed Through Satellite Geodesy

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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?
© Springer - Angermann et.al.

Book Review – Mission Earth

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Read this book review by Hansjörg Kutterer about the recently published "Mission Earth" book about the science of measuring the Earth.
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GGOS Product:
Terrestrial Reference Frame

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How can we provide a stable reference for measuring changes of our planet?
GGOS Film - Discover GGOS and Geodesy© GGOS (background by NASA)

Discover GGOS – The Film

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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.