Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL076741 |
Relation of Field-Aligned Currents Measured by the Network of Iridium (R) Spacecraft to Solar Wind and Substorms | |
McPherron, R. L.1; Anderson, B. J.2; Chu, Xiangning3 | |
2018-03-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2018 |
卷号 | 45期号:5页码:2151-2158 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | The strength of field-aligned currents coupling the magnetosphere to the ionosphere was obtained by the Active Magnetosphere and Planetary Electrodynamics Response Experiment (AMPERE) using the network of Iridium (R) spacecraft. The distribution of current was integrated giving total current in and out of the ionosphere on the dayside and nightside of the Earth in both hemispheres. The onset of auroral zone negative bays and midlatitude positive bays corresponds to an increase in nightside upward current. The total outward current tends toward saturation with increasing solar wind driver strength. The optimum solar wind coupling function for AL index predicts similar to 73% of the variance in nightside upward current. The dayside and nightside predictors of upward current rise to a peak at 30-45min and decay slowly over 2.5hr. Nightside response is delayed relative to dayside. Plain Language Summary The control of electric currents linking the outer parts of the Earth's magnetic field to the ionosphere is investigated. It is found that these currents are closely linked to the solar wind and that a function of several solar wind parameters can predict a significant fraction of the variations in these currents. In addition, it is shown that these currents are connected to the currents that flow in disturbances of the aurora. |
英文关键词 | field-aligned currents AMPERE Iridium (R) substorm prediction filter superposed epoch analysis |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000428402400004 |
WOS关键词 | BIRKELAND CURRENTS ; MAGNETOMETER DATA ; MAGNETIC-FIELD ; CURRENT WEDGE ; VALIDATION ; DYNAMICS ; PHASE ; MODEL |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/26659 |
专题 | 气候变化 |
作者单位 | 1.Univ Calif Los Angeles, Dept Earth Planetary & Space Sci, Los Angeles, CA 90095 USA; 2.Johns Hopkins Univ, Appl Phys Lab, Laurel, MD USA; 3.Univ Calif Los Angeles, Atmospher & Ocean Sci, Los Angeles, CA USA |
推荐引用方式 GB/T 7714 | McPherron, R. L.,Anderson, B. J.,Chu, Xiangning. Relation of Field-Aligned Currents Measured by the Network of Iridium (R) Spacecraft to Solar Wind and Substorms[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(5):2151-2158. |
APA | McPherron, R. L.,Anderson, B. J.,&Chu, Xiangning.(2018).Relation of Field-Aligned Currents Measured by the Network of Iridium (R) Spacecraft to Solar Wind and Substorms.GEOPHYSICAL RESEARCH LETTERS,45(5),2151-2158. |
MLA | McPherron, R. L.,et al."Relation of Field-Aligned Currents Measured by the Network of Iridium (R) Spacecraft to Solar Wind and Substorms".GEOPHYSICAL RESEARCH LETTERS 45.5(2018):2151-2158. |
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