F2 Bölgesinde Sönüm Katsayılarının Karesinin (F2) Büyüklüğünün Düşük Enlemlerdeki Davranışının İncelenmesi

Bu çalışmanın amacı kabul edilen şartlar için belli bir frekansta yerden atmosfere dik gönderilen bir radyo dalgasının ne kadar enerji kaybettiğini araştırmaktır. Bu makalede, iyonkürenin F2 bölgesinde bazı kritik yükseklikler (390, 410, 450, 500, 550 ve 600 km) ve düşük enlemler için iyonküre plazmasında meydana gelen (ordinari, ekstraordinari ve kutuplanmış) dalgaların sönüm katsayılarının karelerinin büyüklüleri teorik olarak hesaplanmıştır. Ordinari ve ekstraordinari dalganın sönüm katsayılarının büyüklüğünün kareleri kabul edilen şartlar için elektron yoğunluğunun enlemle değişimi ile benzerlik göstermekte, kutuplanmış dalga ise farklı bir davranış sergilemektedir. Bu durum kutuplanmış dalganın çarpıcı bir şekilde manyetik alana bağımlılığının bir sonucu olabilir. Bunun yanında kutuplanmış dalganın sönüm katsaysının karesinin diğerlerinden daha büyük olduğundan göz önünde bulundurulan şartlar için daha fazla sönüme uğradığı söylenebilir.

Investigation of the Behavior of the Magnitute of the Square of the Absorbtion Coefficients ın the F2 Region at Low Latitudes

The aim of this study is to investigate how much energy a radio wave, sent perpendicular to the atmosphere at a certain frequency, loses for accepted conditions. This article is theoretically calculated for the magnitude of the squares of the absorbing coefficients of waves (ordinary, extraordinary and polarized) waves that occur only in the ionospheric plasma for some critical heights (390, 410, 450, 500, 550 and 600 km) in the F2 region of the ionosphere and low latitudes. The squares of the magnitude coefficients of the ordinary and extraordinary wave are similar to the latitude variation of the electron density for the accepted conditions, and the polarized wave behaves differently. This may sharply be the result of the polarized wave of dramatically dependence on the magnetic field. On the other hand, it can be said that the damping coefficient of the polarized wave is greater than the squared damping for the conditions considered.

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