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Equatorial electrojet in the African sector

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Title Statement Equatorial electrojet in the African sector
 
Added Entry - Uncontrolled Name Rastogi, R G; Physical Research Laboratory Ahmedabad
Chandra, Harish ; Physical Research Laboratory Ahmedabad
Physical Research Laboratory Ahmedabad
 
Uncontrolled Index Term Equatorial Ionosphere; Electric field and current system
Equatorial electrojet; equatorial ionosphere
 
Summary, etc. <p>Hourly values of the deviations in the geomagnetic X and Y field for the three years 1962-64 are studied at two equatorial electrojet stations in Africa, Freetown (FTN) on the eastern part and Addis Ababa (AAE) on the western part. The declination is almost along the geographic N-S at AAE and 14<sup>o</sup> towards west of the geographic N-S at FTN. The annual mean daily range in X is around 80 nT at FTN and 70 nT at AAE with peak around 11 hrs. Deviations in Y at FTN show peak of about -20 nT around noon. Seasonal mean variations of the daily range in X show almost equal peaks during D and E-months at FTN but at AAE it is highest during equinoctial months and lowest during J-months. The peak in February-March is higher than the peak in September-October at both the stations. Another notable feature at FTN is the steady increase in deviation in X from about -10 nT at 18 hrs to 10 nT at 06 hrs. Vector plots of ΔX versus ΔY show daytime points along a straight line aligned almost along the geographic N-S for D and E-months at AAE and along 12<sup>o</sup> W of north during J-months. At FTN points lie along an elongated ellipse pointing to about 5<sup>o</sup> W of north during D and E-months and to about 20<sup>o</sup> W of north during J-months.</p>
 
Publication, Distribution, Etc. Indian Journal of Radio & Space Physics (IJRSP)
2017-01-04 10:03:33
 
Electronic Location and Access application/pdf
http://op.niscair.res.in/index.php/IJRSP/article/view/10283
 
Data Source Entry Indian Journal of Radio & Space Physics (IJRSP); ##issue.vol## 44, ##issue.no## 4 (2015): Indian Journal of Radio & Space Physics
 
Language Note en
 
Nonspecific Relationship Entry http://op.niscair.res.in/index.php/IJRSP/article/download/10283/28776
http://op.niscair.res.in/index.php/IJRSP/article/download/10283/28777
http://op.niscair.res.in/index.php/IJRSP/article/download/10283/28778
 
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