EDEA, CAMEROON:

THE OPENING OF A NEW GEOMAGNETIC OBSERVATORY

Heumez, B.(1), Lesur, V.(2), Luc, T.(3), Telali, K.(4),

Lalanne, X.(5)

Institut de

Physique du Globe de Paris, 1, rue Jussieu - 75238 Paris cedex 05,

France

 

A new geomagnetic observatory that produce

vector data sampled every second has been implemented in Edea, in the

southwest of Cameroon since April 2018. Following the closure of

Bangui observatory, Edea area is an important site for magnetic

measurements. The observatory is roughly at a symmetric location to

M’bour observatory relative to the magnetic equator. It is too far

to the south for studying the equatorial electrojet but its data carry

important information on the behavior of the core and external

(ionospheric, magnetospheric) fields in this region.

This presentation focuses on how the observatory was planned, built

and installed, how the local staff was trained and the equipment was

set to deliver real-time data sampled every second. It also introduces

the particularities of the site location situated at 2600Km of the

nearest magnetic observatory, TSU, Namibia. The quality of the

quasi-definitive data and the baseline are evaluated based upon the

usual INTERMAGNET criteria. Finally, a comparison with other remote

geomagnetic observatories is presented.

Observatories

oral