TY - GEN

T1 - Fast flows in the midtail during auroral substorms

AU - Nakamura, A

AU - Baumjohann, W

AU - Brittnacher, M

AU - Parks, G

AU - Sergeev, VA

AU - Kubyshkina, M

AU - Mukai, T

PY - 2000

Y1 - 2000

N2 - We study-flow disturbances for selected substorm intervals when the aurora signatures obtained from Polar UV images could be followed from the initial brightening until the end of the recovery phase and when Geotail was located in the midtail region. We compare and contrast fast flows observations related to two different types of aurora: a small-scale poleward expanding bulge and an equatorward :extending N-S aurora (auroral streamer). The frontside flow shear of the fast flow is shown to be consistent with strong cross-tail localization of flow bursts within about 1 MLT of these auroral activation.

AB - We study-flow disturbances for selected substorm intervals when the aurora signatures obtained from Polar UV images could be followed from the initial brightening until the end of the recovery phase and when Geotail was located in the midtail region. We compare and contrast fast flows observations related to two different types of aurora: a small-scale poleward expanding bulge and an equatorward :extending N-S aurora (auroral streamer). The frontside flow shear of the fast flow is shown to be consistent with strong cross-tail localization of flow bursts within about 1 MLT of these auroral activation.

KW - auroral substorm

KW - fast flow

KW - PLASMA SHEET

M3 - статья в сборнике материалов конференции

SN - 92-9092-796-8

T3 - ESA SPECIAL PUBLICATIONS

SP - 375

EP - 378

BT - CLUSTER-II WORKSHOP MULTISCALE/MULTIPOINT PLASMA MEASUREMENTS, PROCEEDINGS

A2 - Harris, RA

PB - ESA Publication Division

Y2 - 22 September 1999 through 24 September 1999

ER -