摘要： The potential influence of the postsunset low‐latitude sporadic E ( E s ) on the genesis of equatorial plasma bubble (EPB) has been investigated using observations made with the Gadanki radar and two ionosondes, one located at the magnetic equator providing the F layer characteristics and another at magnetically low‐latitude providing the E s parameters. Observations revealed that the occurrence of EPB was associated with either the disruption of E s or presence of nonblanketing‐type E s or intermittently occurring blanketing E s at low‐latitude. In contrast, when blanketing E s occurred for a relatively long duration in the sunset hours, EPB did not occur. Model computation clearly reveals that the growth of the Rayleigh‐Taylor instability depends very much on the thickness, height, and shape of electron density profile of the E s layer. The above findings thus suggest that low‐latitude E s variability plays decisive role on the day‐to‐day variability of EPB through the growth rate of the Rayleigh‐Taylor instability. Provides an account of Es role on EPB Observational Es related conductivity has been used to estimate RTI growth Role of tidal/gravity wave on the EPB development throgh Es 出版日期： 2013-01 出處： Journal of geophysical research : Space physics (2013 - Present), 2013-01, Vol.118 (1), p.524-532 資源來源： Wiley Online Library 識別號： ISSN: 2169-9380 識別號： EISSN: 2169-9402 識別號： DOI: 10.1029/2012JA018122
