This paper comprises the comparative study of the behavior of CRI with geomagnetic storms, southward component of IMF, i.e. $${\vert }{} { Bz}{\vert }$$|Bz|, IMF B, solar wind speed (V) and $$V\cdot {\vert }{} { Bz}{\vert }$$V·|Bz| for two consecutive odd solar cycles 21 (1976–1985) and 23 (1996–2008). Our examination arrived at an interesting result that the strongest decrement in CRI occurs around the same time when Dst achieve their minima. The correlation coefficient of Dst with CRI is observed high for both the solar cycles. We have moreover contrasted the profiles of CRI with B,$${\vert }{} { Bz}{\vert }$$|Bz| and V and came to the resolution that the strongest increment in B, $${\vert }{} { Bz}{\vert }$$|Bz| and V happens on the same day when CRI reaches its minimum peak. During the study of CRI with the solar wind speed, we have observed odd behavior for the year 1977 and 2003 with a time lag of one day. We have also found that CRI is highly anti-correlated with $$V\cdot {\vert }{ Bz}{\vert }$$V·|Bz| when contrasted with V or $${\vert }{} { Bz}{\vert }$$|Bz| alone. The correlation coefficient between CRI and $$V\cdot {\vert }{} { Bz}{\vert }$$V·|Bz| is found to be high and the same ($$-\,0.8$$-0.8) for the solar cycles.

中文翻译：

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研究与地磁风暴和太阳周期 21 和 23 的太阳行星际参数相关的宇宙射线强度

本文包括CRI与地磁暴行为的比较研究，IMF的南向分量，即$${\vert }{} { Bz}{\vert }$$|Bz|，IMF B，太阳风速（V ) 和 $$V\cdot {\vert }{} { Bz}{\vert }$$V·|Bz| 连续两个奇数太阳周期 21 (1976–1985) 和 23 (1996–2008)。我们的检查得出了一个有趣的结果，即 CRI 的最大下降大约发生在 Dst 达到最小值的同一时间。观测到两个太阳周期的 Dst 与 CRI 的相关系数都很高。此外，我们将 CRI 的配置文件与 B,$${\vert }{} { Bz}{\vert }$$|Bz| 进行了对比。和 V 并得出 B 中最大增量的分辨率，$${\vert }{} { Bz}{\vert }$$|Bz| V 发生在 CRI 达到最低峰值的同一天。在研究 CRI 与太阳风速的过程中，我们观察到 1977 年和 2003 年的奇怪行为，时间滞后一天。我们还发现 CRI 与 $$V\cdot {\vert }{ Bz}{\vert }$$V·|Bz| 高度反相关。当与 V 或 $${\vert }{} { Bz}{\vert }$$|Bz| 对比时 独自的。CRI 与 $$V\cdot {\vert }{} { Bz}{\vert }$$V·|Bz| 之间的相关系数 发现太阳周期很高且相同（$$-\,0.8$$-0.8）。