Browsing by Author "Hwang, J."

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    Global-Scale Processes and Effects of Magnetic Reconnection on the Geospace Environment
    (Springer Nature, 2024) Fuselier, S. A.; Petrinec, S. M.; Reiff, P. H.; Birn, J.; Baker, D. N.; Cohen, I. J.; Nakamura, R.; Sitnov, M. I.; Stephens, G. K.; Hwang, J.; Lavraud, B.; Moore, T. E.; Trattner, K. J.; Giles, B. L.; Gershman, D. J.; Toledo-Redondo, S.; Eastwood, J. P.
    Recent multi-point measurements, in particular from the Magnetospheric Multiscale (MMS) spacecraft, have advanced the understanding of micro-scale aspects of magnetic reconnection. In addition, the MMS mission, as part of the Heliospheric System Observatory, combined with recent advances in global magnetospheric modeling, have furthered the understanding of meso- and global-scale structure and consequences of reconnection. Magnetic reconnection at the dayside magnetopause and in the magnetotail are the drivers of the global Dungey cycle, a classical picture of global magnetospheric circulation. Some recent advances in the global structure and consequences of reconnection that are addressed here include a detailed understanding of the location and steadiness of reconnection at the dayside magnetopause, the importance of multiple plasma sources in the global circulation, and reconnection consequences in the magnetotail. These advances notwithstanding, there are important questions about global reconnection that remain. These questions focus on how multiple reconnection and reconnection variability fit into and complicate the Dungey Cycle picture of global magnetospheric circulation.