The enhancement of the thermospheric density during the Sept. 25-26, 2001 magnetic storm

被引：1
|
作者：
Liu, HX [1 ]
Lühr, H [1 ]
Köhler, W [1 ]
机构：
[1] Geoforschungszentrum Potsdam, D-14473 Potsdam, Germany
来源：
EARTH OBSERVATION WITH CHAMP: RESULTS FROM THREE YEARS ORBIT | 2005年
关键词：
thermosphere; magnetospheric storm; Joule heating; small-scale field-aligned current;
D O I：
10.1007/3-540-26800-6_58
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
The CHAMP satellite observed large enhancement of the neutral atmospheric density in the southern auroral region during the Sept. 25-26, 2001 magnetic storm. This enhancement was accompanied by intense auroral electrojets and strong small-scale field-aligned currents. Joule heating rate and the heating rate by these small-scale field-aligned currents are compared. Results show that the heating rate by small-scale field-aligned currents is about 2-3 orders of magnitude higher than that by the Joule heating, indicating its importance as a heating source.
引用
收藏
页码：366 / 370
页数：5
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