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Observation Data and Derived Products for the Global Navigation Satellite Systems (GNSS)

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Declination Calculator for the International Geomagnetic Reference Field IGRF

The declination calculator provides declination values for any location on Earth and any time between 1900 and 2025. The calculation is based on the International Geomagentic Reference Field (IGRF) which describes the geomagnetic core field. The cal…
EMS-98 - European Macroseismic Scale

The European Macroseismic Scale (EMS-98) is the basis for assigning seismic intensities in European countries. The European Macroseismic Scale has been most recently updated in 1998 and is referred to as EMS

The history of the EMS began in 1988 w…
FID GEO - Specialised Information Service Geosciences

The Specialised Information Service for Geosciences (FID GEO - Fachinformationsdienst Geowissenschaften) is an information service of the GFZ Helmholtz Centre for Geosciences in Potsdam (GFZ) and the Goettingen State and University Library. Funded b…
GNSS Operational Data Centre (ODC)

With the setup of global and regional GNSS networks and the IGS Analysis Centre in the early 1990s, GFZ has been implemented an „Operational Data Centre (ODC)” to handle the huge amount of data.

The ODC serves the preparation and quality manageme…
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 …
IGS Analysis Center

As one of the analysis centers of the International GNSS Service (IGS), we process thousands of GNSS observations daily to derive precise station coordinates, satellite orbits, satellite clock corrections and Earth rotation parameters. In line with …