Equatorial plasma bubbles features over the Brazilian sector according to the solar cycle and geomagnetic activity level

Frontiers in Astronomy and Space Sciences

Astronomy and Space Sciences

S. S. Chen¹  C. M. Wrasse¹  C. A. O. B. Figueiredo¹  D. Barros¹  C. M. Denardini¹  R. P. Silva¹  G. A. S. Picanço¹  L. Dai²  Z. Liu²  H. Li²  C. Wang²  L. C. A. Resende³  C. S. Carmo³  J. Moro⁴ 

[1] National Institute for Space Research—INPE, São José dos Campos, SP, Brazil;State Key Laboratory of Space Weather, National Space Science Center of the Chinese Academy of Sciences (NSSC/CAS), Beijing, China;State Key Laboratory of Space Weather, National Space Science Center of the Chinese Academy of Sciences (NSSC/CAS), Beijing, China;National Institute for Space Research—INPE, São José dos Campos, SP, Brazil;State Key Laboratory of Space Weather, National Space Science Center of the Chinese Academy of Sciences (NSSC/CAS), Beijing, China;Southern Space Coordination—Southern Spatial Coordination (COESU/INPE), Santa Maria, RS, Brazil;

关键词: ionosphere;    equatorial plasma bubbles;    space weather;    solar cycle;    magnetic activity;   

DOI  :  10.3389/fspas.2023.1252511

 received in 2023-07-03, accepted in 2023-08-09,  发布年份 2023

来源: Frontiers

【 摘 要 】

Equatorial plasma bubbles (EPBs) can lead to signal degradation, affecting the measurement accuracy. Studying EPBs and their characteristics has gained increasing importance. The characteristics of EPBs were investigated using the rate of total electron content (TEC) index (ROTI) maps under different solar and magnetic activity conditions during two periods: July 2014–July 2015 (solar maximum activity with F10.7: 145.9 × 10−22 W⋅m−2⋅Hz−1) and July 2019–July 2020 (solar minimum activity with F10.7: 69.7 × 10−22 W⋅m−2⋅Hz−1). We also divided this analysis according to the magnetic activity levels based on Kp and Dst (disturbance storm time) indices, classified as follows: quiet+ (Kp ≤3 and Dst >−30 nT), quiet− (Kp ≤3 and Dst <−30 nT), disturbed weak (−50 nT

【 授权许可】

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Copyright © 2023 Carmo, Dai, Denardini, Figueiredo, Wrasse, Resende, Barros, Moro, Chen, Picanço, Silva, Wang, Li and Liu.