中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地质与地球物理研究所
  3. 中国科学院地质与地球物理研究所
Analysis of the periodical characteristics of Sq index

文献类型：期刊论文

作者Wu Ying-Yan1; Xu Wen-Yao2; Chen Geng-Xiong2
刊名CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
出版日期2012-03-01
卷号55期号:3页码:953-959
关键词Asq index F107 Fourier harmonics
ISSN号0001-5733
DOI10.6038/j.issn.0001-5733.2012.03.025
文献子类Article
英文摘要Using the hourly data of the X component of geomagnetic field during 1960 to 1980 from Beijing and Guangzhou geomagnetic observatories of China, the Asq index is calculated based on the new geomagnetic activity index for describing the variation of Sq dynamo current intensity proposed by Xu (1992). The method of Fourier analysis is used to analyze the periodical characteristics of the Asq index. The result shows that a prominent 11-year cycle, as well as the annual and semiannual variations are clearly seen in the Fourier harmonics of the Asq index, which are closely related with the F107 index, suggesting the close relationship between the variations of the Asq index and the solar radiation. Because the correlation calculation with Delta(S-q) over bar (t) is derived from the quiet clays of each month, which contains the periodical information of the Sq field, the amplitudes of the 11-years cycle, annual and semiannual variations are smaller.
WOS关键词TO-DAY VARIABILITY ; SOLAR DAILY VARIATIONS ; GEOMAGNETIC-FIELD ; CURRENT SYSTEM ; WIND DYNAMO ; TIDES ; FOCUS ; CURRENTS ; REGION ; SQ(H)
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000302332300025
出版者SCIENCE PRESS
源URL[http://ir.iggcas.ac.cn/handle/132A11/84106]  
专题中国科学院地质与地球物理研究所
通讯作者Wu Ying-Yan
作者单位1.China Earthquake Adm, Inst Earthquake Sci, Beijing 100036, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Wu Ying-Yan,Xu Wen-Yao,Chen Geng-Xiong. Analysis of the periodical characteristics of Sq index[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2012,55(3):953-959.
APA Wu Ying-Yan,Xu Wen-Yao,&Chen Geng-Xiong.(2012).Analysis of the periodical characteristics of Sq index.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,55(3),953-959.
MLA Wu Ying-Yan,et al."Analysis of the periodical characteristics of Sq index".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 55.3(2012):953-959.

入库方式： OAI收割

来源：地质与地球物理研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。