cid 59546cf2c076d9f109aff3795e0cce589fdb4f5648e4f22b9e700a323cd64a46 · original · via openalex
Title: Magnetic flux transport by dipolarizing flux bundles Authors: Jiang Liu; V. Angelopoulos; Xu‐Zhi Zhou; A. Runov Venue: Journal of Geophysical Research Space Physics Year: 2014 Canonical: doi:10.1002/2013ja019395 URL: https://doi.org/10.1002/2013ja019395 Collector: openalex OA: false ABSTRACT Abstract A dipolarizing flux bundle (DFB) is a small magnetotail flux tube (typically 65% of BBF flux transport, even though they last only ~30% as long as BBFs. The rate of DFB flux transport increases with proximity to Earth and to the premidnight sector, as well as with geomagnetic activity and distance from the neutral sheet. Under the latter two conditions, the total flux transport by a typical DFB also increases. Dipolarizing flux bundles appear more often during increased geomagnetic activity. Since BBFs have been previously shown to be the major flux transporters in the tail, we conclude that DFBs are the dominant drivers of this transport. The occurrence rate of DFBs as a function of location and geomagnetic activity informs us about processes that shape global convection and energy conversion.