BCMT

Observatories

TAN
Antananarivo, Madagascar

Created in 1889, the magnetic observatory was modernised in 1983 and joined INTERMAGNET in 1992. Managed by the Institut et Observatoire Géophysique d'Antanarivo (IOGA) in collaboration with the Ecole et Observatoire des Sciences de la Terre (EOST).



IAGA Code: TAN
Location : Antananarivo, Madagascar
Institutions : Institut et Observatoire Géophysique d'Antananarivo (Madagascar)
Ecole et Observatoire des Sciences de la Terre (France)
Co-latitude : 108.917°
Longitude : 47.552°
Altitude : 1375 meters
Orientation : HDZF
Instruments :

Absolutes:
Portable Declinometer-Inclinometer
D-I Flux, theodolite Zeiss 010 B
Variations:
Three-component fluxgate variometer (VFO 31)
proton Overhauser magnetometer(Geomag SM90R)

Status :

In operation until December 2007

Data Availability :

1 second data and derived means

Contact :

Aude Chambodut
Ecole et Observatoire des Sciences de la Terre
Service des observatoires magnétiques
5, rue René Descartes
France
Fax: 33 (0)3 68 85 01 25
aude.chambodut@unistra.fr

Alternate Contact:

F. Ranaivo-Nomenjanahary:Head
J.B. Ratsimbazafy: Director
Institut et Observatoire Géophysique d'Antananarivo
P.O. BOX 3843
Antananarivo (101)
Madagascar
Tel: (261) 20 22 253 53
Fax: (261) 20 22 253 53
fnranai@univ-antananrivo.mg

 

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