[IGPP Everyone] Reminder - Today - Friday May10, 2019 - Space Physics Seminar - Spring Quarter

[Marjorie Sowmendran]

Reminder – Today - Friday, May 10, 2019

SPACE PHYSICS SEMINAR

DEPARTMENT OF EARTH, PLANETARY, AND SPACE SCIENCES

DEPARTMENT OF ATMOSPHERIC AND OCEANIC SCIENCES

UNIVERSITY OF CALIFORNIA, LOS ANGELES

(AOS M275C, EPSS M288C)







Statistical Study on Two Types Of Flux Transfer Events Observed By MMS Spacecraft



Cong Zhao

EPSS, UCLA

ABSTRACT

The magnetic and plasma structures on the dayside magnetopause are examined with unprecedented detail with the exceptionally high temporal resolution measurements of both magnetic field and plasma properties as well as the capability to disentangle the spatial and temporal variations.  This capability is enabled by the closely-formed four-spacecraft-tetrahedron of the MMS mission. With this detailed examination using definitive criteria, we have been able to distinguish and identify different current structures in the vicinity of magnetopause, namely: the magnetopause current layer, flux transfer events (FTEs), and the magnetosheath field enhancement (MFE). Furthermore, with observations from MMS, the detailed properties of FTEs are studied for their better understanding. With these detailed analyses, we then show that there are two types, one with mixed plasma originated from two regimes (type A) and the other without the mix of signatures (type B); and that these two types of FRs are the same phenomena. Both FTEs are generated by dayside magnetic reconnection and are responsible for the magnetic flux transfer. 



                                                                                                                               Friday, May 10, 2019



Room 6704 Geology

3:30 - 5:00 PM



In-Charge: C. T. Russell 



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