Multi-Spacecraft Observations of Fluctuations Occurring Along the Dusk Flank Magnetopause, and Testing the Connection to an Observed Ionospheric Bead

Frontiers in Astronomy and Space Sciences

Simon Wing¹  Yongliang Zhang¹  Jay R. Johnson²  Steven M. Petrinec³ 

[1] Applied Physics Laboratory, Johns Hopkins University, Laurel, MD, United States;Department of Engineering and Computer Science, Andrews University, Berrien Springs, MI, United States;Lockheed Martin Advanced Technology Center, Palo Alto, CA, United States;

关键词: magnetopause;    kelvin-helmholtz instability;    ionospheric bead;    ULF waves;    boundary layer;   

DOI  :  10.3389/fspas.2022.827612

来源: DOAJ

【 摘 要 】

During 2018 November 06, 11:30—18:00 UT, the MMS constellation, the Cluster set of spacecraft, and the Geotail spacecraft were all situated near the dusk flank magnetopause. Large scale fluctuations were observed by the available and operating science instruments at these various spacecraft (i.e., magnetic field, plasma moment, and energy flux measurements). Similar fluctuations were not observed by upstream solar wind monitors, suggesting that the waves were initiated at the magnetopause. A localized emission ‘bead’ from the post-noon ionosphere was also observed from low Earth orbit. The nature and relation of the fluctuations observed at all of these spacecraft at the magnetosphere boundary and the connection to the post-noon high-latitude ionosphere are investigated in this study.

【 授权许可】

Unknown