Abstract

A series of Bursty Bulk Flow events (BBFs) were observed by CLUSTER satellites during the quiet time of the magnetotail in 2001. The data of multi-satellites of CLUSTER show that the duration of BBFs observed by multi-satellites is longer than that of BBFs previously observed by single satellite. The duration of multi-satellites is about twice that of single satellite. Flapping of BBFs in the dusk-dawn direction mainly determined temporal order of observation of BBFs of three CLUSTER satellites. The localization of BBFs is also confirmed by multi-satellites observations simultaneously. The longer duration of BBFs during the quiet time of magnetotail enhances the earthward transport of mass and energy, and changes the onset of the substorm. Our study also provides a new idea to solve the Pressure Balance Inconsistency (PBI).

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