• Vimal Saraswat
• Prayag Bhatt
• Nirmala Rathore

In this paper the diurnal variation in foF2 for a mid-latitude station for about one-decade is shown. This paper confirms that the foF2 value depends on time and solar activity/sunspot number. The value of foF2 decreases during morning time and increases during night time. The paper also confirms that there is direct relationship between sunspot number and ROC of foF2 during night hours and inverse relationship between morning hours, whereas no significant variation is shown during the day time.

foF2, sunspot number, diurnal variation.

"Trend analysis of foF2 over a mid latitude American station Adak using about data set of one decade", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 7, page no.450-454, July-2018, Available :http://www.jetir.org/papers/JETIRC006361.pdf

"Trend analysis of foF2 over a mid latitude American station Adak using about data set of one decade", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 7, page no. pp450-454, July-2018, Available at : http://www.jetir.org/papers/JETIRC006361.pdf