IMF By-controlled field-aligned currents in the magnetotail during northward interplanetary magnetic field
文献类型：期刊论文
| 作者 | Z.W.Cheng ; J.K.Shi ; M.Dunlop ; Z.X.Liu |
| 刊名 | Journal of Atmospheric and Solar-Terrestrial Physics
 |
| 出版日期 | 2013 |
| 关键词 | Field-aligned currents Magnetotail Interplanetary magnetic field By |
| ISSN号 | 1364-6826 |
| 通讯作者 | 北京8701信箱 |
| 中文摘要 | The influence oftheinterplanetarymagnetic field (IMF) By component onthe field-aligned currents (FACs)intheplasmasheetboundarylayer(PSBL)inthemagnetotailduringthenorthwardIMFwere investigatedusingthedatafromCluster.Thereare748FACscasesselectedtodoanalysis.Wepresent that theIMF By component playsaveryimportantroleincontrollingthe flowdirectionoftheFACsinthe PSBL inthemagnetotail.Inthenorthernhemisphere,theinfluence ofthepositive(negative)IMF By is an earthward(tailward)FACs.Tothecontrary,inthesouthernhemisphere,theeffectofthepositive (negative)IMF By is atailward(earthward)FACs.Thereisaclearnorth–south asymmetryofthepolarity of theFACsinthePSBLwhenIMF By is positiveornegative,andthisasymmetryofthepolarityismore distinct whenIMF By is positive.TheFACdensityiscontrolledbyIMF By only when |IMF By| is large.When |IMF By| is morethan10nTtheabsoluteFACdensityinthePSBLhasanobviouspositivecorrelationwith the |IMF By|. When |IMF By| is lessthan10nT,thereisnocorrelationbetweentheabsoluteFACdensityand |IMF By|. Thereisacleardusk–dawnasymmetryinthecurrentdensitiesfortheFACsinthePSBL,withthe dawncurrentsappearinglargerthantheduskcurrents.TheFACwiththelargest(smallest)densityis located intherangeof0100rMLTo0200(2100rMLTo2200). |
| 学科主题 | 空间物理 |
| 语种 | 英语 |
| 源URL | [http://ir.cssar.ac.cn/handle/122/1516]  |
| 专题 | 国家空间科学中心_空间科学部 |
| 推荐引用方式 GB/T 7714 | Z.W.Cheng,J.K.Shi,M.Dunlop,et al. IMF By-controlled field-aligned currents in the magnetotail during northward interplanetary magnetic field[J]. Journal of Atmospheric and Solar-Terrestrial Physics,2013. |
| APA | Z.W.Cheng,J.K.Shi,M.Dunlop,&Z.X.Liu.(2013).IMF By-controlled field-aligned currents in the magnetotail during northward interplanetary magnetic field.Journal of Atmospheric and Solar-Terrestrial Physics. |
| MLA | Z.W.Cheng,et al."IMF By-controlled field-aligned currents in the magnetotail during northward interplanetary magnetic field".Journal of Atmospheric and Solar-Terrestrial Physics (2013). |
入库方式： OAI收割
来源：国家空间科学中心
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