BCMT


WAMNET network

The West African Magnetometer NETwork (WAMNET) is a network of three magnetometers located in Mali and Ivory Coast.
The WAMNET project aims at providing high-quality vector magnetic data in the equatorial region, as a complement of the global INTERMAGNET observatory network.
These data allow to study the equatorial electrojet, a thin layer of electrical current flowing along the magnetic dip-equator at an altitude of 110 km during day-time, an important component of Earth space weather.
WAMNET data have been used for computing ionospheric electric field and compare with the Equatorial Electric Field Model (EEFM) [Alken et al. 2013].
WAMNET data are also used for scientific studies related to the ESA Earth Explorer mission Swarm.
The WAMNET project is funded by the French Space Agency (CNES).

WAMNET data

Each station is made of a three-axis fluxgate magnetometer installed in a thermally insulated building. Data are acquired every 1s since February 2009, earlier they were acquired every 1 min. Data are retrieved from the stations from time to time, during an operator visit at the stations.

Station id Location Lat (N) Lon (E) Installation Data available up to
BAK
Bakarywéré, Mali
13.297 -4.887
03/2006
02/2015
SAM
Samogossoni, Mali
11.394 -5.625
03/2006
02/2015
KOR
Korhogo, Ivory Coast
9.403
-5.626
02/2009
05/2013

Due to the current political situation in the area where WAMNET stations are installed, it is not possible to perform the needed maintenance and upgrades to these stations. They are maintained in operation as long as no major issues interrupt their regular functioning. This project is being extended to the East and central Africa with the upcoming installation of a station in Djibouti, an observatory in Edea (Camerun) and a planned station in N’djamena (Chad).


Download WAMNET data

References:

Alken, P., A. Chulliat, and S. Maus (2013), Longitudinal and seasonal structure of the ionospheric equatorial electric field, Journal of Geophysical Research: Space Physics, 118(3), 1298–1305, doi:10.1029/2012JA018314