地磁指数

太阳活动22周以来的冕洞和地磁指数

The Coronal Holes and Geomagnetic Indices within the 22nd Solar Cycle Period

本文对地磁指数（AP）与大连日平均气温之间的逐日滑动相关系数进行了计算。

In this paper the daily correlation coefficients between magnetic index and air temperature in Dalian are calculated .

行星际参量和地磁指数相关关系之比较

Comparison of the Correlations between the Interplanetary Parameters and Geomagnetic Indexes

研究结果表明，太阳活动所引起的太阳辐射、地磁指数等的变化，与对流层大气所出现的异常降水事件有一定的对应。

The results show that variations of solar radiation and geomagnetic index correspond to the abnormal precipitation events in troposphere .

有关结果还用中纬地磁指数的变化进行了印证。人工神经网络在磁情预报中的应用

The results are confirmed by the variation of middle-latitude geomagnetic index . THE APPLICATION OF ARTIFICIAL NEURAL NETWORKS TO THE PREDICTION OF GEOMAGNETIC INDEX

冕洞相关地磁Ap指数中短期预报方法研究

Medium and Short Term Forecasting of Ap Index Related to Coronal Holes

研究表明能量离子的能量密度以及能量密度的梯度与地磁活动指数Kp之间存在近似线性的关系。

The dependence of ion energy density on different geomagnetic activity levels indicated by Kp indices has been studied . A linear correlation of energy density with Kp has been found .

地磁活动指数Kp增高时上行离子进入磁层的概率增大，因而上行离子起动力学作用的地球空间范围增大。

If K p is higher the probability of the up flowing ions to entry the magnetosphere will be bigger and region where the up flowing ions are dominant will be bigger .

此外，谐波成份中存在的纬度变化和年际变化并不能很好地用太阳活动和地磁活动指数拟合。

In addition , the solar flux and geomagnetic activity proxies that we have employed do not capture some latitude and inter-annual variations detected in our data .

进入/撤回事件的统计结果显示，这类事件较易发生在南向行星际磁场期间，并且发生此类事件时的平均地磁活动指数比所有的磁尾电流片拍动事件要大一些。

The Enter / Retreat events show a correlation with southward interplanetary magnetic field ( IMF ), and the averaged geomagnetic index show that these events occurred under a larger value than that of the magnetotail current sheet .