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| 强磁暴的时间分布特性 | |
| 引用本文： | 李琪,高玉芬,朱培育,张秀玲.强磁暴的时间分布特性[J].地震地磁观测与研究,2012,33(3):56-60. |
| 作者姓名： | 李琪 高玉芬 朱培育 张秀玲 |
| 作者单位： | 1. 中国北京100081 中国地震局地球物理研究所 2. 中国上海202164 崇明地震台 3. 中国北京100095 中国地震局地球物理研究所北京地震台 |
| 基金项目： | 中国地震局地球物理研究所中央级公益性科研院所基本科研业务专项项目 |
| 摘 要： | 对比分析1957--2008年间Dst≤-100nT的强磁暴数与太阳黑子数的变化趋势，发现太阳黑子数和Dst≤-100nT的强磁暴数的变化趋势有很好的一致性。进一步统计强磁暴在太阳周不同阶段的分布后发现，同一太阳周内60％以上的强磁暴出现在下降年，但从太阳周各个阶段的平均磁暴年发生率来看，强磁暴平均年发生率最高的年份仍然是太阳活动极大年。 |
| 关 键 词： | 强磁暴 太阳周 时间分布 年平均发生率 太阳黑子数 |
Dependence of strong magnetic storm number on solar cycle |
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| Li Qi , Gao Yufen , Zhu Peiyu , Zhang Xiuling.Dependence of strong magnetic storm number on solar cycle[J].Seismological and Geomagnetic Observation and Research,2012,33(3):56-60. | |
| Authors: | Li Qi Gao Yufen Zhu Peiyu Zhang Xiuling |
| Institution: | 1) Institute of Geophysics, China Earthquake Administration, Beijing 100081, China 2) Chongming Seismic Station, Shanghai 202164, China3) Beij ing Observatory, Institute of Geophysics, China Earthquake Administration, Beij ing 100081, China |
| Abstract: | Dependence of strong geomagnetic storm number with Dst≤-100 nT on solar cycle from 1957 to 2008 was statistically investigated. It is found that there is close relationship between the strong storm number and annual sunspot number. Dependence of strong storm number on difference phases of solar cycle revealed that more than 60% strong storms appeared in the declining phase. However, the maximum average annual occurrence rate still appeared in the year of the cycle maximum. |
| Keywords: | strong storms solar cycle temporal characteristic average annual occurrence rate sunspot number |
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