The International Service of Geomagnetic Indices (ISGI) is an International Service under the Federation of Astronomical and Geophysical Data Analysis Services (FAGS). ISGI collects, compiles, validates and distributes geomagnetic indices and other geomagnetic data in real time by electronic communication, based on the report of magnetic observatories, with the help of collaborating institutes. ISGI publishes monthly bulletins with provisional geomagnetic indices. In 1996, ISGI has published the IAGA Bulletins No. 32 series for the years 1988 and 1989.
For further information link to the ISGI homepage http://www.cetp.ipsl.fr/~isgi/homepag1.htm
or contact:
Dr. Michel Menvielle
Director ISGI
CEPT
4 Av. de Neptune
F-94107 SAINT-MAUR-DES-FOSSES CEDEX
France
FAX: +33(01)-48894433
e-mail: michel.menvielle@cetp.ipsl.fr