News and Activities
GGOS IberAtlantic (GGOS IA) functions as a regional node of GGOS, focusing on geodetic activities across the Iberian Peninsula and the Atlantic region. GGOS IA fosters collaboration among geodetic institutions while promoting scientific research and technological development tailored to the region’s unique geophysical characteristics.




Nature Research Award for Driving Global Impact
📰 General NewsNature Research Award for Driving Global Impact
Science is critical in solving global challenges. In 2021 Nature invites applications from early career researchers (please see criteria below) working in these areas:
Eligibility criteria
Applicants must:
For more information please visit the Award’s website at https://www.nature.com/collections/ccjnyjxvmp/apply
Author: Sz. Rózsa
New Height of Mount Everest
GGOSThe new height of Mount Everest refers to the International Height Reference System (IHRS), a major enterprise of GGOS.
In December 2020, the Chinese and Nepalese Governments announced the new height of Mount Everest. Heights are usually determined with respect to the mean sea level registered at a tide gauge. Depending on the geographical location of the tide gauge and the time interval considered for averaging the tide gauge records, the height reference level may vary up to 2 m worldwide. Thus, referring the height of a point to different mean sea levels produces different height values for the same point.
The International Association of Geodesy (IAG) and its Global Geodetic Observing System (GGOS) are intensively working on the establishment of a global unified height system that supports the height determination with respect to one and the same reference level worldwide. All concepts needed for this goal are grouped under the International Height Reference System (IHRS) and its establishment is a major enterprise of GGOS (Focus Area Unified Height System).
A prominent example of the importance of the IHRS is the recent height determination of Mount Everest in 2020. Referring this height to the Chinese height system or to the Nepalese height system would produce different values, making difficult to decide which one is the appropriate one. To avoid discrepancies, the Chinese and Nepalese Governments agreed to refer the new Mount Everest’s height of 8848.86 meter to the IHRS,
see https://web.archive.org/web/20240525020026/http://www.xinhuanet.com/english/2020-12/08/c_139573400.htm.
Author: Laura Sánchez
Mission Earth
GGOSTracking down Geodynamics and Climate Change
with Satellite Geodesy
How does your cell phone know where you are right now? How is our planet changing due to geodynamic processes and progressing climate change? How can these changes be measured precisely from space in order to acquire reliable information about the melting of ice sheets or the threat to coastal regions from rising sea levels?
Four geodesists from the Technical University of Munich (TUM) provide answers to these and many other socially relevant questions in the new popular science book “Mission Earth: Tracking down Geodynamics and Climate Change with Satellite Geodesy“. The book aims at interested nonprofessionals who want to learn more about our fascinating planet, but also at experts in natural sciences. You are taken on an exciting journey from the first measurements in ancient times until the satellite era, which is providing us with a global view of our planet. Illustrative examples demonstrate how deeply global positioning and navigation with satellites pervade our daily life, and which fundamental contributions geodesy provides for improving our understanding of the system Earth and monitoring the impacts of climate change.
The book will be published in February 2021 by Springer (German edition).
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