LOCATION AND PROPAGATION OF THE MAGNETOTAIL CURRENT DISRUPTION DURING SUBSTORM EXPANSION - ANALYSIS AND SIMULATION OF AN ISEE MULTI-ONSET EVENT

被引:158
作者
JACQUEY, C
SAUVAUD, JA
DANDOURAS, J
机构
[1] Centre d'Etude Spatiale des Rayonnements, CNRS, Toulouse University
关键词
D O I
10.1029/90GL02789
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
Magnetic field variations measured onboard the ISEE-1 spacecraft in the tail northern lobe (approximately 22 R(E) geocentric distance) during a substorm with multiple onsets are analyzed and simulated using a model current sheet. This remote sensing study of the cross-tail current sheet shows that substorm onsets are associated with a partial disruption of the cross-tail current that begins in the near-earth plasma sheet (approximately 7 R(E)) and that expands tailward during substorm expansion with a velocity of the order of 300 km/s. The two consecutive substorm onsets, which occur during a very active period (AE > 500 nT), correspond to a similar partial disruption of the near-earth current sheet that expands tailwards over a distance of the order of 80 R(E).
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页码:389 / 392
页数:4
相关论文
共 22 条
[1]  
AKASOFU SI, 1981, SPACE SCI REV, V28, P121, DOI 10.1007/BF00218810
[2]   EXPERIMENT TO STUDY ENERGETIC PARTICLE FLUXES IN AND BEYOND EARTHS OUTER MAGNETOSPHERE [J].
ANDERSON, KA ;
LIN, RP ;
PAOLI, RJ ;
PARKS, GK ;
LIN, CS ;
REME, H ;
BOSQUED, JM ;
MARTEL, F ;
COTIN, F ;
CROS, A .
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 1978, 16 (03) :213-216
[3]   LATITUDINAL MOTIONS OF THE AURORA DURING SUBSTORMS [J].
CRAVEN, JD ;
FRANK, LA .
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 1987, 92 (A5) :4565-4573
[4]   A STATISTICAL STUDY OF PLASMA SHEET DYNAMICS USING ISEE 1 AND 2 ENERGETIC PARTICLE-FLUX DATA [J].
DANDOURAS, J ;
REME, H ;
SAINTMARC, A ;
SAUVAUD, JA ;
PARKS, GK ;
ANDERSON, KA ;
LIN, RP .
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 1986, 91 (A6) :6861-&
[5]   ON THE AVERAGE SHAPE AND POSITION OF THE GEOMAGNETIC NEUTRAL SHEET AND ITS INFLUENCE ON PLASMA SHEET STATISTICAL STUDIES [J].
DANDOURAS, J .
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 1988, 93 (A7) :7345-&
[6]   ANOMALOUSLY HIGH PLASMA DENSITIES IN THE PLASMA SHEET BOUNDARY-LAYER [J].
ETCHETO, J ;
SAINTMARC, A .
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 1985, 90 (NA6) :5338-5344
[7]   KINETIC-ENERGY DENSITY AND DIAMAGNETIC EFFECTS DURING PLASMA INJECTION EVENTS [J].
GENDRIN, R .
GEOPHYSICAL RESEARCH LETTERS, 1980, 7 (12) :1105-1108
[8]   CHARACTERISTICS OF SUPRATHERMAL H+ AND HE++ IN PLASMOIDS IN THE DISTANT MAGNETOTAIL [J].
GLOECKLER, G ;
IPAVICH, FM ;
HOVESTADT, D ;
SCHOLER, M ;
GALVIN, AB ;
KLECKER, B .
GEOPHYSICAL RESEARCH LETTERS, 1984, 11 (10) :1030-1033
[9]   CORRECTION [J].
GURGIOLO, C .
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 1981, 86 (NA5) :3674-3674
[10]  
Hones E. W., 1980, DYNAMICS MAGNETOSPHE, P545