TITLE:
Day-to-Day Variability of H Component of Geomagnetic Field in Central African Sector Provided by Yaoundé-Cameroon Amber Station
AUTHORS:
Messanga Etoundi Honore, Kosh Djaka Comelo, Mbane Biouele Cesar
KEYWORDS:
Geomagnetic Field, AMBER Magnetometer Station, Magnetic Storms, Equatorial Electrojet
JOURNAL NAME:
International Journal of Geosciences,
Vol.5 No.10,
September
29,
2014
ABSTRACT: The geomagnetic data obtained from Amber Network station in Cameroon have
been used for this study. The variability of H component of geomagnetic field
has been examined by using geomagnetic field data of X and Y components
recorded at AMBER magnetometer station hosted by the Department of Physics of
University of Yaoundé (3.87°N, 11.52°E). The day-to-day variability of the
horizontal intensity of the geomagnetic field was examined and shows that the
scattering of H component of magnetic field variation is more on disturbed than
that on quiet condition. The signatures H of geomagnetic Sq and Sd variations
in intensities in the geomagnetic element, has been studied. This study shows
that the daytime variations in intensities of geomagnetic elements H, Sq(H) and
Sd(H) respectively are generally greater than night-time ones. This paper
interests answering the two questions: 1) how can geomagnetic variations be
used to study the equatorial ionosphere electrodynamics and electrojet
equatorial over Africa in general and Cameroon in particular? 2) How can
geomagnetic variations be used to monitor and predict space weather events in
Cameroon? This paper presents and interprets the results of H component of
geomagnetic field variations during magnetic storms and on quiet days.