Abstract Details
| Name: Malik Abdul Waheed Affiliation: Department Of Physics Barkatullah University Bhopal Conference ID: ASI2016_412 Title : Effect of solar radiation fluxes on the ionosphere during low and high solar activity Authors and Co-Authors : Parvaiz A Khan A.K. Gwal Abstract Type : Poster Abstract Category : Sun and the Solar System Abstract : In this study we have studied and compared the response of ionosphere to different solar fluxes during the low and high solar activity periods. For carrying out this study we have a mid latitude station namely Okinawa, Japan (26.3N, 127.8E) and taken the critical frequency of F2 layer (foF2) derived from ionosonde observations to compare the variability of ionosphere during low solar activity period 2007 and high solar activity period 2003. From our analysis, we found that the values of foF2 were low during 2007 and extremely high during 2003, showing that ionospheric activity has a direct relationship with the solar activity. We then took three solar proxies namely F10.7 cm, EUV flux (26-34nm) and X-ray flux (1-8Ã…) and probed the association of foF22003 and foF22007 with these solar proxies during the minimum and peak of cycle. We found that EUV flux and X-ray flux correlate with the foF22003 and foF22007 much better than F10.7cm, during both the phases of the cycle. Therefore we conclude that EUV and X-ray Flux are better solar proxies than F10.7 which have been widely used in previous studies. Moreover, the correlation of both fluxes (EUV and X-ray) is stronger with fof22003 than with fof22007. |