Equatorial plasma bubble seeding by MSTIDs in the ionosphere

被引:60
|
作者
Takahashi, Hisao [1 ]
Wrasse, Cristiano Max [1 ]
Oliveira Barros Figueiredo, Cosme Alexandre [1 ]
Barros, Diego [1 ]
Abdu, Mangalathayil Ali [1 ]
Otsuka, Yuichi [2 ]
Shiokawa, Kazuo [2 ]
机构
[1] INPE, Sao Jose Dos Campos, SP, Brazil
[2] Nagoya Univ, Inst Space Earth Environm Res, ISEE, Nagoya, Aichi, Japan
关键词
Equatorial plasma bubbles; MSTID; Gravity waves; SPREAD-F; SOUTH-AMERICA; GRAVITY-WAVES; PERIODIC-WAVES; TEC MAP; DISTURBANCES; ELECTRODYNAMICS; IRREGULARITIES; CLIMATOLOGY; INITIATION;
D O I
10.1186/s40645-018-0189-2
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
Occurrences of equatorial plasma bubbles (EPBs) and medium-scale traveling ionospheric disturbances (MSTIDs) were studied using GPS satellite data-based total electron content mapping, ionograms, and 630 nm all-sky airglow images observed over the South American continent during the period of 2014-2015. In many cases, we observed a close relationship between the inter-bubble distance and the horizontal wavelength of the MSTIDs. The MSTIDs followed by EPBs occurred primarily in the afternoon to evening period under strong tropospheric convective activities (cold fronts and/or intertropical convergence zones). The close relationship between EPBs and MSTIDs suggests that MSTIDs could be one of the seeding sources of EPBs.
引用
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页数:13
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