A Study of Equatorial Ionospheric Irregularities over the Indian-Ocean Sector during Solar Maximum by Using the Global Positioning System
Ionospheric irregularities will exert scintillations on electromagnetic waves if the waves pass through them.So they are interesting for ionospheric propagation at the magnetic equator and low latitudes.The irregularities during solar maximum period were examined by tracking stations of the global position system,which were located in the India-Ocean sector in both southern and northern hemispheres.The results show that the significant nocturnal ionospheric irregularities appear equinoctial dominance at low latitudes.Besides,there is an equinoctial asymmetry of occurrence rate of irregularities,i.e.,the rate seems larger during spring(March-April)than autumn(September-October)over the eastern sector,while appears larger during autumn than spring over the western sector.Moreover,the equinoctial asymmetry can reverse over the eastern sector when solar activity is going to reach maximum during the rising phase of a solar cycle.
F.D.Chu W.S.Chen C.C.Lee W.H.Tseng H.T.Lin C.S.Liao
National Time and Frequency Standard Lab,Chunghwa Telecom Co.,Ltd.,Taiwan General Education Center,Chien Hsin University of Science and Technology,Taiwan
国际会议
Progress in Electromagnetics Research Symposium 2013(2013年电磁学研究新进展学术研讨会)
台北
英文
608-611
2013-03-01（万方平台首次上网日期，不代表论文的发表时间）