|本期目录/Table of Contents|

[1]王建军,杨冬梅,张素琴,等.中国地区地磁静日变化场Sq(H)台链分布特征*[J].地震研究,2010,33(04):329-336.
 WANG Jian-jun,YANG Dong-mei,ZHANG Su-qing,et al.Research on the Distribution of Geomagnetic Daily Variation along some Station Chains in China[J].Journal of Seismological Research,2010,33(04):329-336.
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中国地区地磁静日变化场Sq(H)台链分布特征*(PDF/HTML)

《地震研究》[ISSN:1000-0666/CN:53-1062/P]

卷:
33
期数:
2010年04期
页码:
329-336
栏目:
出版日期:
2010-04-23

文章信息/Info

Title:
Research on the Distribution of Geomagnetic Daily Variation along some Station Chains in China
作者:
王建军1杨冬梅2张素琴2朱 荣2
(H)台链分布特征*] 王建军1,杨冬梅2,张素琴2,朱 荣2 (1.甘肃省地震局,兰州 730000; 2.中国地震局地球物理研究所,北京 100081)
Author(s):
WANG Jian-jun1YANG Dong-mei2ZHANG Su-qing2ZHU Rong2
(1.Earthquake Administration of Gansu Province,Lanzhou 730000,Gansu,China)(2.Institute of Geophysics,CEA,Beijing 100081,China)
关键词:
经度链 纬度链 Sq(H) Sq焦点
Keywords:
longitudinal chainlatitudinal chainSq(H)Sq focus
分类号:
P318.5
DOI:
-
摘要:
选取地磁台网数字化观测资料,分析了中国地区Sq(H)的时空分布特征,得出以下结论:(1)经度链Sq(H)在夏季和春秋季存在明显的午前午后不对称现象;(2)夏、春秋、冬3个时段Sq焦点的平均位置分别大约为27°N、29°N和35°N。这只是一个平均状态,单个静日的Sq焦点有可能出现在50°N以北,也可能出现在19°N以南;(3)两条经度链上H变幅的纬向变化趋势不一致现象、相同纬度链上Sq(H)形态反向或者H变幅自东向西递增(减)现象,均说明Sq焦点在自东向西的迁移过程中,除了经向上的迁移外,还有纬向上的迁移或者电流强度的变化。
Abstract:
The temporal and spatial distribution of Sq(H)in China was analyzed based on the geomagnetic digitized data from the geomagnetic observation network.It was found that:(1)there was obvious prenoon-postnoon asymmetry of Sq(H)in Summer and Equinox.(2)in Summer,Equinox and Winter,the averaged focus position of Sq were 27 ° N,29 ° N and 35 ° N respectively.But in a single quiet day,the focus of Sq might appear in the north of 50 ° N and in the south of 19 ° N.(3)there were some special behavior of the Sq(H)distributions such as the latitudinal trend inconsistencies in two longitudinal chain,the reverse of Sq(H)variations in the same latitudinal chain and the increase(decrease)of the daily ranges from east to west.All these demonstrated that there might be latitudinal migration of the Sq focus or changes in current intensity during the longitudinal migration of Sq focus from east to west.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2010-03-15
基金项目:地震行业科研专项,地磁场动态分布计算(200708043)资助.

更新日期/Last Update: 2010-04-23