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Relationship between the geomagnetic Dst(min) and the interplanetary Bz(min) during cycle 23
被引：13
|作者：
Kane, R. P.
[1
]
机构：
[1] Inst Nacl Pesquisas Espaciais, BR-12245970 Sao Jose Dos Campos, SP, Brazil
关键词：
Geomagnetic storms;
Dst;
Interplanetary magnetic fields;
Sun-Earth relationship;
SOLAR-WIND;
RING CURRENT;
MAGNETIC STORM;
MAGNETOSPHERE;
INTENSE;
SPACE;
SIGNATURES;
PARTICLES;
PRESSURE;
EARTH;
D O I：
10.1016/j.pss.2009.11.005
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
In cycle 23 for geomagnetic storms of -Dst(min) > 50 nT, the plot of -Dst(min) versus -Bz(min) for the low -Bz(min) range 0-10 nT showed erratic variation in Dst(min), (correlation 0.19). Even for -Bz(min) range 10-20 nT, -Dst(min) values had considerable scatter (correlation 0.57). For -Bz(min). > 20 nT, the relationship was good (correlation 0.82). For the whole range -Bz(min) 0-50 nT, the correlation was high (0.88). Thus, if -Bz(min) is very large (similar to 20 nT), large -Dst(min) occurs but in a wide range of 100-500 nT. (C) 2009 Elsevier Ltd. All rights reserved.
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页码：392 / 400
页数：9
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