Physics
Scientific paper
Dec 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010agufmsa51d1649a&link_type=abstract
American Geophysical Union, Fall Meeting 2010, abstract #SA51D-1649
Physics
[2415] Ionosphere / Equatorial Ionosphere, [2441] Ionosphere / Ionospheric Storms, [7954] Space Weather / Magnetic Storms
Scientific paper
In March 2010 a digisonde was installed at the University of Ilorin, Nigeria (Geog-Latitude 8.47 °N, Geog Longitude 4.68 °E, Dip 4.1 °S), a typical equatorial station. This is quite timely since it coincides with the period when the solar cycle is just emerging from the period of a very deep minimum and solar activity is rising. Two magnetic storms that recently occurred are those of April 5 -6 (maximum Ap index 50, minimum DST -83 nT) and that of August 3-6, 2010 (maximum Ap index 43, minimum DST -70 nT). The effects of these two storms on the ionosphere over Ilorin are discussed. Increase in NmF2, typical for equatorial regions during the main phase of magnetic storms, occurred for both storms. Changes in the thickness of the F2 layer (IRI parameter B0), the N(h) electron density profiles, and in the F region plasma drift are discussed and compared with those observed by the Jicamarca digisonde in Peru.
Adeniyi J.
Adimula I. A.
Habash Krause L.
McHarg Matthew G.
Oladipo O. A.
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