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  • November 7, 2017

Near-Earth plasma sheet boundary dynamics during substorm dipolarization

Nakamura et al. (2017) report on the evolution of the near-Earth plasma sheet boundary during an intense substorm. Based on multi-point analysis using the four-spacecraft measurements from Magnetospheric Multiscale (MMS) together with Geotail and GOES spacecraft and comparison with MHD model of the reconnection jet, spatial structure of the high-speed plasma flows and associated field-aligned current pattern are deduced. It is shown that the dynamics in the boundary region of the near-Earth plasma sheet are controlled both by the Earthward flow braking process and by the accumulated magnetic flux due to near-Earth reconnection evolving tailward. Click to view the article Read more