Interaction between Equatorial Plasma Bubbles and a Medium-Scale Traveling Ionospheric Disturbance, observed by OI 630 nm airglow imaging at Bom Jesus de Lapa, Brazil

IF 2.9 3区地球科学

Earth and Planetary Physics Pub Date : 2021-10-22 DOI:10.26464/epp2021045

Cristiano Max Wrasse, Cosme Alexandre Oliveira Barros Figueiredo, Diego Barros, Hisao Takahashi, Alexander José Carrasco, Luiz Fillip Rodrigues Vital, Láysa Cristina Araujo Resende, Fábio Egito, Geângelo de Matos Rosa, Antonio Hélder Rodrigues Sampaio

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引用次数: 6

Abstract

OI 630.0 nm airglow observations, from a new observatory at Bom Jesus de Lapa, were used to study the interaction between EPBs (Equatorial Plasma Bubbles) and the MSTID (Medium-Scale Traveling Ionospheric Disturbance) over the Northeast region in Brazil. On the night of September 16 to 17, 2020, an EPB was observed propagating eastward, in an apparent fossil stage, until it interacted with a dark band electrified MSTID (eMSTID). After the interaction, four EPBs merged, followed by an abrupt southward development and bifurcations. Analysis of the data suggests that an eastward polarization electric field, induced by the dark band eMSTID, forced the EPB into an upward drift, growing latitudinally along the magnetic field lines and then bifurcating.

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赤道等离子体气泡与中尺度行电离层扰动的相互作用:巴西Bom Jesus de Lapa的OI 630 nm气辉成像观测

利用巴西新观测站的OI 630.0 nm气辉观测资料，研究了赤道等离子体气泡与巴西东北地区中尺度移动电离层扰动(MSTID)之间的相互作用。在2020年9月16日至17日的晚上，观测到EPB向东传播，明显处于化石阶段，直到它与暗带带电MSTID (eMSTID)相互作用。相互作用后，四个epb合并，随后突然向南发展并分叉。对数据的分析表明，由暗带eMSTID引起的向东极化电场迫使EPB向上漂移，沿着磁力线沿纬度方向增长，然后分叉。

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来源期刊

Earth and Planetary Physics GEOSCIENCES, MULTIDISCIPLINARY-

自引率

17.20%

发文量

174