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Section 1.2 Global Geomonitoring and Gravity Field

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Earth System Observatories (Regional Observatories)

Our observatories are a key instrument for a comprehensive understanding of the system Earth. The combination of monitoring programmes and observatories allows for an observation of the processes shaping the Earth system from a local to a global sca…
GCOCA - Global Change Observatory Central Asia

Central Asia is highly vulnerable to global warming and natural hazards. The region allows us to study not only changes and impact in the water cycle but also a broad range of other natural, often hazardous, phenomena. Central Asia is influenced by …
GRACE-FO - Gravity Recovery and Climate Experiment-Follow-On Mission

The primary objective of the GRACE-FO Mission is, as for GRACE, to obtain precise global and high-resolution models for both the static and the time variable components of the Earth's gravity field. As in the original GRACE mission, this goal is ach…
GravIS - Gravity Information Service

The Gravity Information Service (GravIS) visualizes and describes Level-3 products based on the most recent GRACE and GRACE-FO gravity field release from GFZ. The products presented at GravIS are available for download at GFZ's Information System a…
HELGOG - Helgoland Gravimetric Observatory Germany

The Helgoland Gravimetric Observatory Germany (HELGOG) was established in March 2020 in the basement of the Biologische Anstalt Helgoland (BAH) of the Alfred Wegener Institute AWI, Helmholtz Centre for Polar and Marine Research. The main research fo…
IAG Services - Services of the International Association of Geodesy (IAG Services)

The International Association of Geodesy (IAG) is the scientific organization in the field of geodesy. It promotes scientific cooperation and research in geodesy on a global scale and contributes to it through its various research bodies. It is a me…
ICGEM - International Centre for Global Earth Models

The determination of Earth’s global gravity field is one of the main tasks of geodesy: it serves as a reference for geodesy itself and provides essential information about the Earth, its interior and its fluid envelope for all geosciences. Thus, it …
IDS - International Doris Service

The Doris (Doppler Orbitography and Radiopositioning Integrated by Satellite) system is a French satellite system used for precise orbit and positioning determination. It is based on the Doppler Effect principle consisting of a terrestrial beacon ne…
IGETS Database - Database of the International Geodynamics and Earth Tide Service

The International Geodynamics and Earth Tide Service (IGETS) is one of five services coordinated by the International Gravity Field Service (IFGS) of the International Association of Geodesy (IAG). The main objective of IGETS is to monitor temporal …
ILRS - International Laser Ranging Service

The International Laser Ranging Service (ILRS) was established as one of the IAG measurement services in 1998, with a charter to organize and coordinate world-wide Satellite Laser Ranging (SLR) and Lunar Laser Ranging (LLR) activities to support pro…
ISDC - Information System and Data Center

The Information System and Data Center (ISDC) is an access point for diverse geoscientific data, corresponding metadata, scientific documentation and software tools. The majority of the data and information that are offered to the public are global …
SAGOS - South African Geodynamic Observatory Sutherland

The South African Geodynamic Observatory Sutherland (SAGOS) of GFZ was established during the years 1998 – 2000 based on an Agreement on Cooperative Activities between the National Research Foundation (NRF) and GFZ, signed in August 1998. SAGOS is l…
Satellite Laser Ranging Station Potsdam

The Satellite Laser Ranging (SLR) Station of the GFZ Potsdam has been continuously operating within the framework of the International Laser Ranging Service (ILRS) since January 2003. The method of satellite laser ranging was established in 1964 and…
Satellite Receiving Station at Ny-Ålesund (Spitsbergen)

The GFZ Helmholtz Centre for Geosciences operates a satellite receiving station at Ny-Ålesund, Spitsbergen (78° 55´ North, 11° 56´ East) to receive data from research satellites in polar orbits. The station is located about 1 km outside the village,…
ZUGOG - Zugspitze Geodynamic Observatory

The Zugspitze Geodynamic Observatory (ZUGOG) was established in September 2018 on top of mountain Zugspitze in the European Alps, with the dual targets of validation and calibration of GRACE-FO and supporting research into alpine mountain building p…
CHAMP - CHAllenging Minisatellite Payload inactive

CHAMP (CHAllenging Minisatellite Payload) was a German small satellite mission for geoscientific and atmospheric research and applications, managed by GFZ. With its highly precise, multifunctional and complementary payload elements (magnetometer, ac…
GFZ-1 - Geo Research Satellite inactive

GFZ-1, the first satellite of the GeoForschungsZentrum Potsdam (GFZ), was designed as a small, passive satellite, equipped with 60 retro-reflectors to be illuminated from the ground by the global network of satellite laser ranging (SLR) systems. The…
GOCE - Gravity Field and Steady-State Ocean Circulation Explorer inactive

The Earth explorer satellite GOCE (Gravity Field and Steady-State Ocean Circulation Explorer) was the first satellite mission within the framework of the Living Planet Program of ESA. This satellite mission was mapping the Earth's gravity field on g…
GRACE - Gravity Recovery and Climate Experiment inactive

GRACE was a joint project between the National Aeronautics and Space Administration (NASA) and the Deutsches Zentrum für Luft- und Raumfahrt (DLR). The mission has been proposed in 1996 jointly by the University of Texas at Austin, Center for Space …