Remarks
The 6 ISGI Collaborating Institutes are: EOST (Ecole et Observatoire des Sciences de la Terre, Strasbourg, France), GFZ (Helmholtz-Zentrum Potsdam Deutsches GeoForschungsZentrum Adolf-Schmidt-Observatorium, Potsdam, Germany), Observatori de l'Ebre (Roquetes, Spain), WDC Kyoto for Geomagnetism ( World Data Center for Geomagnetism, Data Analysis Center for Geomagnetism and Space Magnetism, Graduate School of Science, Kyoto University, Japan), DTU Space (DTU Space, National Space Institute, Lyngby, Denmark) and AARI (Arctic and Antarctic Research Institute, St.Petersburg, Russian Federation) [see: http://isgi.unistra.fr/collaborating_institutes.php].
The indices of geomagnetic activity and lists of remarkable events derivation, meaning and availability are available at: http://isgi.unistra.fr/geomagnetic_indices.php.
ISGI headquarters have been moved from LATMOS (Guyancourt, France) to EOST(Strasbourg, France) in 2014.