Solar cycle dependence of the seasonal variation of auroral hemispheric power
Although much has been done on the hemispheric asymmetry (or seasonal variations) of auroral hemispheric power (HP), the dependence of HP hemispheric asymmetry on solar cycle has not yet been studied. We have analyzed data during 1979-2010 and investigated the dependence of HP hemispheric asymmetry/...
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Veröffentlicht in: | Chinese science bulletin 2013-02, Vol.58 (4-5), p.525-530 |
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creator | Zheng, Ling Fu, SuiYan Zong, QuiGang Parks, George Wang, Chi Chen, Xi |
description | Although much has been done on the hemispheric asymmetry (or seasonal variations) of auroral hemispheric power (HP), the dependence of HP hemispheric asymmetry on solar cycle has not yet been studied. We have analyzed data during 1979-2010 and investigated the dependence of HP hemispheric asymmetry/seasonal variation for the whole solar cycle. Here we show that (1) the hemispheric asymmetry of HP is positively correlated to the value of solar F10.7 with some time delay; (2) it is closely related to the coupling function between the solar wind and magnetosphere; and (3) the winter hemisphere receives more auroral power than the summer hemisphere for Kp ~0 to 6. The statistic results can be partly understood in the framework of the ionospheric conduc- tivity feedback model. The similarity and differences between our results and previous results are discussed in the paper. |
doi_str_mv | 10.1007/s11434-012-5378-6 |
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We have analyzed data during 1979-2010 and investigated the dependence of HP hemispheric asymmetry/seasonal variation for the whole solar cycle. Here we show that (1) the hemispheric asymmetry of HP is positively correlated to the value of solar F10.7 with some time delay; (2) it is closely related to the coupling function between the solar wind and magnetosphere; and (3) the winter hemisphere receives more auroral power than the summer hemisphere for Kp ~0 to 6. The statistic results can be partly understood in the framework of the ionospheric conduc- tivity feedback model. 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Sci. Bull</addtitle><addtitle>Chinese Science Bulletin</addtitle><description>Although much has been done on the hemispheric asymmetry (or seasonal variations) of auroral hemispheric power (HP), the dependence of HP hemispheric asymmetry on solar cycle has not yet been studied. We have analyzed data during 1979-2010 and investigated the dependence of HP hemispheric asymmetry/seasonal variation for the whole solar cycle. Here we show that (1) the hemispheric asymmetry of HP is positively correlated to the value of solar F10.7 with some time delay; (2) it is closely related to the coupling function between the solar wind and magnetosphere; and (3) the winter hemisphere receives more auroral power than the summer hemisphere for Kp ~0 to 6. The statistic results can be partly understood in the framework of the ionospheric conduc- tivity feedback model. 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Sci. Bull</stitle><addtitle>Chinese Science Bulletin</addtitle><date>2013-02-01</date><risdate>2013</risdate><volume>58</volume><issue>4-5</issue><spage>525</spage><epage>530</epage><pages>525-530</pages><issn>1001-6538</issn><eissn>1861-9541</eissn><abstract>Although much has been done on the hemispheric asymmetry (or seasonal variations) of auroral hemispheric power (HP), the dependence of HP hemispheric asymmetry on solar cycle has not yet been studied. We have analyzed data during 1979-2010 and investigated the dependence of HP hemispheric asymmetry/seasonal variation for the whole solar cycle. Here we show that (1) the hemispheric asymmetry of HP is positively correlated to the value of solar F10.7 with some time delay; (2) it is closely related to the coupling function between the solar wind and magnetosphere; and (3) the winter hemisphere receives more auroral power than the summer hemisphere for Kp ~0 to 6. 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subjects | Asymmetry Chemistry/Food Science correlation Earth Sciences Engineering Hemispheres Humanities and Social Sciences Life Sciences multidisciplinary Physics Science Science (multidisciplinary) seasonal variation Seasonal variations Similarity Solar cycles Solar power generation Statistics summer Winter 不对称性 功率比 半球 太阳活动周期 季节变化 极光 模型框架 耦合作用 |
title | Solar cycle dependence of the seasonal variation of auroral hemispheric power |
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