An Investigation on Properties of Ionospheric Es in Hainan Region
In this study, using the DPS-4 digisonde data obtained in Hainan ionosphere observation station from March 2002 to February 2008, diurnal, seasonal and annual occurrence variations of the observed Sporadic E (Es) and its responding to the SSN are studied. The main results are as: The diurnal characteristic of h/c type Es had a single peak which was different from the double peak of the Es over Cachoeira Paulista, and the Es-q had two peaks (one in the morning and the other in the evening) which was also different from the Es-q occurrence (mainly in daytime) over Fortaleza, Brazil. The frequent season was spring, summer, summer and autumn for the f/l, h/c, q and r type Es, respectively. For the annual occurrence rate, the highest was f/l type Es, while the lowest was r type Es. The f/l and q type Es showed a clear increase with SSN and had a positive correlation with SSN during equinoxes and winter, while during summer the each type of Es showed no correlation with SSN. The mechanisms of the Es are also discussed.
Jiankui Shi Guojun Wang
State Key Laboratory of Space Weather,Center for Space Science and Applied Research Chinese Academy of Sciences,Beijing 100190,China
国际会议
Progress in Electromagnetics Research Symposium 2009(2009年电磁学研究新进展学术研讨会)(PIERS 2009)
北京
英文
74-78
2009-03-23（万方平台首次上网日期，不代表论文的发表时间）