Multiple-spacecraft observation of a narrow transient plasma jet in the Earth's plasma sheet

We use observations from five magnetospheric spacecraft in a fortuitous con stellation to show that narrow transient plasma flow jets of considerable l ength formed in the tail can intrude into the inner magnetosphere and provi de considerable contribution to the total plasma transport. A specific auro ral structure, the auroral streamer, accompanied the development of this na rrow plasma jet. These observations support the 'boiling' plasma sheet mode l consisting of localized underpopulated plasma tubes (bubbles) moving Eart hward at high speeds as a realistic way to resolve the 'convection crisis' and to close the global magnetospheric circulation pattern.