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<strong>Modeling of the Equatorial Ionospheric E- layer based on cos c index</strong>

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Title Statement <strong>Modeling of the Equatorial Ionospheric E- layer based on cos c index</strong>
 
Added Entry - Uncontrolled Name Kazeem, Abdulah ; University of Ilorin, Ilorin. Nigeria
Adeniyi, Olusegun ; University of Ilorin, Ilorin. Nigeria
Adediji, Adekunle Titus; The Federal University of Technology, Akure.
 
Uncontrolled Index Term middle and upper atmospheres
Ionosphere, E-layer, foE, equitorial, solar activity.
 
Summary, etc. <strong>Daytime hourly values of the critical frequency of the ionospheric E-layer, ¦oE, obtained at Ouagadougou Ionospheric Observatory (12.40N, 1.50W) Burkina Faso, West Africa, have been used to study the general characteristics of the normal E – layer. Modeling of E-layer based on solar zenith angle through cos c index factor was also carried out using the relation ¦oE = a (cos c)n, The years 1985 and 1991 data which are the two years of low and high solar activity were employed. The values of diurnal cos c index, n and coefficient a were obtained for each month of the years considered. The average value of the diurnal cos c index, n and coefficient a, for ¦oE at Ouagadougou were found to be 0.32 and 3.70 for low solar activity, and 0.30 and 4.28 for high solar activity. ¦oE = 3.70 cos c 0.32 and ¦oE = 4.28 cos c 0.30 were deduced for low solar activity and high solar activity respectively. The results show that there is no seasonal variation in the values of n and a for both low and high solar activities. The model was tested with ¦oE data from Korhogo, (9.30N, 5.40W) in Cote-d’Ivoire and there is good agreement between the model and observations. The percentage differences between ¦oE, the model and observed values were found to be within ± 10% for both equinoxes and solstices for the two levels of solar activity.<object id="ieooui" classid="clsid:38481807-CA0E-42D2-BF39-B33AF135CC4D"></object></strong><!--st1\:*{behavior:url(#ieooui) } --><!--[endif] --><!--[if gte mso 10]> <mce:style><! /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} > <! [endif] -->
 
Publication, Distribution, Etc. Indian Journal of Radio & Space Physics (IJRSP)
2017-01-05 09:16:55
 
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http://op.niscair.res.in/index.php/IJRSP/article/view/2113
 
Data Source Entry Indian Journal of Radio & Space Physics (IJRSP); ##issue.vol## 43, ##issue.no## 3 (2014): Indian Journal of Radio & Space Physics
 
Language Note en
 
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