Question

write in detail about absorption characteristics of the ionosphere.
no copeyed answer accepted
approx 15 line answer must be accepted.​

Answer 1

absorption characteristics of ionosphere are ::---->

• absorption in the inosphere can be classified as derivative of non derivative absorption.
• derivative absorption occur in the region of inosphere where the wave Band back to the earth.
• exceptexcept for the frequency near the critical frequency of the reflecting layer this type of absorption it is small.
• skywave absorption is also dependent upon the season of year and support activity.
• index in the of m u f , calculations are greatly facilitated by the use of numerous chart and nomograms which have been prepared and which are available.
• during the daylight hours a much greater absorption of the wave occur in the D region where the collision frequency is high .this letter absorption is called nondeviative because of non associated with bending of the wave.