About ISGI

The International Service of Geomagnetic Indices (ISGI) is in charge of the elaboration and dissemination of geomagnetic indices, and of tables of remarkable magnetic events, based on the report of magnetic observatories distributed all over the planet, with the help of ISGI Collaborating Institutes.

ISGI is the Reference Service for validation, dissemination and stewardship of geomagnetic indices through its official Web portal.

ISGI characteristics are detailed in the following::

Reference service
Trusted data repository
Governance
History
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