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首页> 外文期刊>African Journal of Environmental Science and Technology >Variability of the magnetospheric electric field due to high-speed solar wind convection from 1964 to 2009
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Variability of the magnetospheric electric field due to high-speed solar wind convection from 1964 to 2009

机译：1964年至2009年的高速太阳风对流引起的磁体电场的可变性

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摘要

Focusing on the classification of solar winds into three types of flux: (1) slow winds, (2) fluctuating winds, and (3) high speed-solar winds HSSW (V ≥ 450 km/s on average day), the influence of the convection electric field (EM) via the flow of HSSWs during storms in the internal magnetosphere and on the stability of magnetospheric plasma at high latitudes was investigated. The study involved 1964-2009 period, which encompasses solar cycles 20, 21, 22 and 23. The results show a weak correlation of the frozen electric field profiles with the HSSWs overall solar cycles and a very large number of HSSWs recorded in cycle 23. Particular attention has been paid to solar cycle 22 which rather presents a fairly disturbed profile with sudden variations in solar flux and EM field; however, solar cycle 21 records the lowest level of HSSW. Overall, over all the studied solar cycles, it can be seen that the EM field from HSSWs of very low intensity increases progressively from solar cycle 20 to cycle 23, respectively with a minimum occurrence of 8.48% and a maximum of 9.36%. The results reached show, on one hand, that the magnetosphere is very stable from 15:00UT to 21:00UT, and on the other hand, that there is a significant transfer of mass in the night sector (21:00UT-24:00UT) than on the day side (00:00UT15:00UT) for all solar cycles over the long period of 45 years.
机译：专注于太阳风的分类为三种类型的助焊剂：（1）慢风，（2）波动风和（3）高速太阳风HSSW（平均v≥450km / s），影响研究了在内部磁层中的暴风雨期间通过HSSWS流动的对流电场（EM），并研究了高纬度地区的磁体血浆稳定性。该研究涉及1964-2009期间，其包括太阳循环20,21,22和23.结果表明冻结电场​​谱与HSSWS整体太阳循环的弱相关性和在循环23中记录的大量HSSWS。对太阳循环22的支付了特别的注意，这与太阳能通量和EM场的突然变化呈现相当令人不安的轮廓;但是，太阳循环21记录了HSSW的最低水平。总的来说，在所有研究的太阳循环中，可以看出，来自HSSW的HSSW的EM场从太阳循环20到循环23增加，最小发生8.48％，最大为9.36％。一方面，结果达到了磁圈，磁层从15：00〜21起非常稳定，另一方面，夜间部门的质量显着转移（21：00UT-24：_ ）在45岁长期的所有太阳循环中，对于所有太阳循环而不是在当天（00：00ut15：00ut）。

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