• 责任者：Yuan Yahong (Institute of Geophysics ; China Earthquake Administration ; Beijing 100081 ; China ) ; Yang Dongmei
• 刊名：Chinese Journal of Geophysics
• 出版年：2012
• 卷期：55(3)
• 关键词：地磁场 ; geomagnetic field
• 页码：p.960-969
• 图表：4 illus., 24 tables, 1 refs.
• 分类号：0400
• issnNo：ISSN0001-5733
• isbnNo：CN11-2074/P

Based on the analysis of Vr index of H and D（VrH and VrD） from data of 41 geomagnetic observatories in China and 4 geomagnetic observatories abroad in 2008~2010, both temporal and spatial variation characteristics of VrH and VrD were observed. For temporal variations,the VrH and VrD showed 27-day solar rotation recurrences,and the VrD showed significant seasonal variation while the VrH did not,VrH was related to solar wind speed（SWS）, and their correlation coefficients were 0.97, 0.70 and 0.88. VrD with seasonal variation removed was also related to SWS, and their correlation coefficients were 0.96,0.77,and 0.5. For spatial variations, within mainland China, VrH and VrD also increased with latitude.