Analysis on the Temporal-Spatial Distribution of the Geomagnetic Activity Index Vr

Data Science Journal

Chuan-Hua Chen²  Hua-Ran Chen¹  Ya-Hong Yuan¹  Yu-Fei He¹  Dong-Mei Yang¹ 

[1] Institute of Geophysics, China Earthquake Administration;Taian Magnetic Observatory, Earthquake Administration of Shandong Province

关键词: Vr index;    Temporal-spatial distribution;    Local time dependence;    Dusk-dawn asymmetry;    Partial ring current;    Field-aligned current;   

DOI  :  10.2481/dsj.IAGA-06

学科分类：计算机科学（综合）

来源: Ubiquity Press Ltd.

【 摘 要 】

References(8)Based on the analysis of the Vr index from data from geomagnetic observatories in China and four geomagnetic observatories abroad, temporal-spatial distribution characteristics of Vr index were analyzed. The Vr index showed 27-day solar-cycle recurrences and significant seasonal variation. It also increased with latitude. Meanwhile, both local-time dependence and an obvious dusk-dawn asymmetry existed, which might be related to the asymmetric ring current, the partial ring current, and the field-aligned current.

【 授权许可】

Unknown