Recirculation of plasma sheet particles into the high-latitude boundary layer
نویسندگان
چکیده
منابع مشابه
Propagation of Alfvén Waves at the Plasma Sheet Boundary Layer
Recently, observations from the Polar and Cluster satellites have indicated that largeamplitude kinetic Alfvén waves are observed throughout the plasma sheet, particularly at the plasma sheet boundary layers, during substorms. These waves may be directly produced by reconnection processes in the tail, or indirectly through linear or nonlinear mode conversion or by localized plasma flows in the ...
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[1] This paper presents simultaneous observations of 6-mHz magnetic pulsations in the nightside high-latitude plasma sheet, inner plasma sheet at the geosynchronous distance, and auroral region on the ground in association with substorm onset. We study an isolated substorm (AE 300 nT) onset on 19 October 1999 at 0145 UT. The Polar spacecraft was located in the plasma sheet near the plasma sheet...
متن کاملSome properties of Alfvén waves: Observations in the tail lobes and the plasma sheet boundary layer
[1] We report properties of substorm-related, globally excited Alfvén waves on a temporal scale of 6 to 300 s (3.3 to 167 mHz) at geocentric distances between 5 and 6 RE. The waves were observed in the tail lobes and the plasma sheet boundary layer (PSBL) by the Polar satellite. In each region we made the following observations: (1) The tail lobe Alfvén waves started at substorm onset as determ...
متن کاملLatitude-energy structure of multiple ion beamlets in Polar/TIMAS data in plasma sheet boundary layer and boundary plasma sheet below 6 RE radial distance: basic properties and statistical analysis
Abstract. Velocity dispersed ion signatures (VDIS) occurring at the plasma sheet boundary layer (PSBL) are a well reported feature. Theory has, however, predicted the existence of multiple ion beamlets, similar to VDIS, in the boundary plasma sheet (BPS), i.e. at latitudes below the PSBL. In this study we show evidence for the multiple ion beamlets in Polar/TIMAS ion data and basic properties o...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Space Physics
سال: 1998
ISSN: 0148-0227
DOI: 10.1029/98ja02392