Research Papers
Analysis on the Temporal-Spatial Distribution of the Geomagnetic Activity Index Vr
Authors:
Ya-Hong Yuan ,
Institute of Geophysics, China Earthquake Administration, Beijing, 100081, China
Dong-Mei Yang,
Institute of Geophysics, China Earthquake Administration, Beijing, 100081, China
Hua-Ran Chen,
Institute of Geophysics, China Earthquake Administration, Beijing, 100081, China
Yu-Fei He,
Institute of Geophysics, China Earthquake Administration, Beijing, 100081, China
Chuan-Hua Chen
Taian Magnetic Observatory, Earthquake Administration of Shandong Province, Taian, 271000, China
Abstract
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.
How to Cite:
Yuan, Y.-H. et al., (2011). Analysis on the Temporal-Spatial Distribution of the Geomagnetic Activity Index Vr. Data Science Journal. 10, pp.IAGA34–IAGA40. DOI: http://doi.org/10.2481/dsj.IAGA-06
Published on 22 Jun 2011.
Peer Reviewed
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