Physics
Scientific paper
Dec 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010agufmsa51d1651f&link_type=abstract
American Geophysical Union, Fall Meeting 2010, abstract #SA51D-1651
Physics
[1530] Geomagnetism And Paleomagnetism / Rapid Time Variations
Scientific paper
The geomagnetic horizontal (H) field from the chain of 16 MAGDAS magnetic observatories along African and Asian longitudes are used to study the storm-time and disturbance daily variations. Geomagnetic field components vary when the interplanetary magnetic field is oriented in southward direction. Also effect of sudden magnetospheric compression is clearly seen at all latitudes. There is persistent decrease of H of disturbance daily variation during the storm at equatorial latitudes which could be the effect of a westward electric field due to the Disturbance Ionospheric dynamo coupled with abnormally large electrical conductivities in the E region over the equator. Therefore by analysing the data observed in the stations along African and Asian longitudes during the magnetic storm, the variations in electromagnetic environment in the near-earth space could be obtained.
Falayi E.
Magdas M.
Rabiu A.
Uozumi Teiji
Yumoto Kiyo
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