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

Author(s)

Wrasse, Cristiano Max ^[1] ; de Oliveira Barros Figueiredo, Cosme Alexandre ^[1] ; Barros, Diego ^[1] ; Takahashi, Hisao ^[1] ; Carrasco, Alexander Jose ^[2] ; Rodrigues Vital, Luiz Fillip ^[1] ; Araujo Resende, Laysa Cristina ^{[1, 3]} ; Egito, Fabio ^[4] ; Rosa, Geangelo de Matos ^[5] ; Rodrigues Sampaio, Antonio Helder ^[5]

Affiliation

^[1] Natl Inst Space Res INPE, Space Weather Div, Sao Jose Dos Campos - Brazil

^[2] Univ Los Andes ULA, Merida - Venezuela

^[3] State Key Lab Space Weather, Beijing 100190 - Peoples R China

^[4] Fed Univ Campina Grande UFCG, Campina Grande, Paraiba - Brazil

^[5] Fed Inst Educ Sci & Technol Baiano IF Baiano, Bom Jesus Da Lapa - Brazil

• Document type: Journal article
• Source: EARTH AND PLANETARY PHYSICS; v. 5, n. 5, SI, p. 397-406, SEP 2021.
• Web of Science Citations: 1

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. (AU)

• FAPESP's process: 18/09066-8 - TRAVELLING IONOSPHERIC DISTURBANCES OBSERVED BY DETRENDED TOTAL ELECTRON CONTENT MAPS/KEOGRAM OVER ANDES MOUNTAINS
• Grantee: Cosme Alexandre Oliveira Barros Figueiredo
• Support Opportunities: Scholarships in Brazil - Post-Doctoral