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ISGI PRESENTATION LIST OF GEOMAGNETIC OBSERVATORIES INDICES: DERIVATION AND AVAIBILITY INDICES: DATA
LONGITUDE SECTOR ACTIVITY INDICES MUSICAL DIAGRAM MONTHLY BULLETIN SELECTED PAPERS

LIST OF GEOMAGNETIC OBSERVATORIES

A list of geomagnetic observatories where continuous recordings have been made during at least five consecutive years. In this table, the observatories are listed according to the alphabetic order and one has indicated for each station, from left to right :

- its name and three-letter IAGA international code ;

- the geographic and geomagnetic coordinates, and altitude ;

- the K=9 lower limit, given only for the stations which belong to the networks used in Kp, am or aa calculation.

- the opening and closing years.

Note that temporary stations do not appear in this table, as for instance those operating during the International Polar and Geophysical years, but they can be found in the more extensive list published in the former IAGA-Bulletin n° 20 (1965).

The values of the parameters given in the table has been obtained from the following publications :

•- C.R. Bock and R.W. Schumann : Katalog der Jahres mittel der Magnetischen
Elemente der Observatorien und der Stationen an deinen eine Zeitlang erdmagnetische Beobachtungen Stattfanden, Geophysikalisches Institut Postdam Abhandlungen n° 8, Postdam, 1948;

- Annual mean values of Geomagnetic elements, Geomagnetic Bulletin n°10,
Institut of Geological Sciences, Edinburgh, 1981 ;

- Yearbooks of individual observatories.

A list of the stations having provided continuous recordings over at least fifty years. When one observatory has moved, the names of the different consecutive sites are indicated. The stations are listed following the alphabetic order of the oldest observatory. One has only indicated in this table the opening and closing years, as the other parameters can be found in the preceeding list

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