中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Application of close degree to classified prediction of geomagnetic disturbances

文献类型:期刊论文

作者Wang Jing; Feng Xue-Shang
刊名Chinese journal of geophysics-chinese edition
出版日期2006-11-01
卷号49期号:6页码:1588-1594
关键词Close degree Fuzz mathematics Geomagnetic disturbance Cme
ISSN号0001-5733
通讯作者Wang jing(jwang@spaceweather.ac.cn)
英文摘要Using the close degree and membership function and comprehensive evaluation in fuzzy mathematics, in conjunction with the solar observation of cme and ips observation for the interplanetary solar storms caused by cme, we present a close degree prediction method for geomagnetic disturbance events caused by coronal mass ejection (cme)-shock waves identified by ips observation. based on the analysis of 74 geomagnetic disturbance events caused by cme-shock waves identified by ips observation during 1997 similar to 2003, five clustering indexes and their weighted fuzzy sets are constructed. typical fuzzy sets of small, moderate, and intense geomagnetic disturbance events are built based on comprehensive evaluation. by constructing the respective fuzzy set of each event, based on the close degree between the fuzzy set and typical fuzzy sets, the prediction for different geomagnetic disturbance caused by the events can be made. main results are as follows: for the 74 geomagnetic disturbance events, the prediction accuracy is 53.3% for small geomagnetic disturbance; 100% for moderate geomagnetic disturbance; and 90.20% for intense geomagnetic disturbance. the average precision of this method is 84%. this method is an effective application of fuzzy mathematics to studying the geomagnetic disturbance.
WOS关键词CORONAL MASS EJECTIONS ; SOLAR-WIND ; ISF METHOD ; MODELS ; STORMS ; TESTS ; TIME ; IPS
WOS研究方向Geochemistry & Geophysics
WOS类目Geochemistry & Geophysics
语种英语
WOS记录号WOS:000242388600003
出版者SCIENCE CHINA PRESS
URI标识http://www.irgrid.ac.cn/handle/1471x/2379385
专题中国科学院大学
通讯作者Wang Jing
作者单位1.Chinese Acad Sci, Ctr Space Sci & Appl Res, State Key Lab Space Weather, SIGMA Weather Grp, Beijing 100080, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714
Wang Jing,Feng Xue-Shang. Application of close degree to classified prediction of geomagnetic disturbances[J]. Chinese journal of geophysics-chinese edition,2006,49(6):1588-1594.
APA Wang Jing,&Feng Xue-Shang.(2006).Application of close degree to classified prediction of geomagnetic disturbances.Chinese journal of geophysics-chinese edition,49(6),1588-1594.
MLA Wang Jing,et al."Application of close degree to classified prediction of geomagnetic disturbances".Chinese journal of geophysics-chinese edition 49.6(2006):1588-1594.

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来源:中国科学院大学

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