Different response of dayside auroras to increases in solar wind dynamic pressure

	Different response of dayside auroras to increases in solar wind dynamic pressure
	Yang, Y. F.; Lu, J. Y.; Wang, J-S; Peng, Z.; Qian, Q.; Xiao, Y.
刊名	JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
	2011
卷号	116 页码:A08314
ISSN号	2169-9380
通讯作者	Yang, YF (reprint author), China Meteorol Adm, Natl Ctr Space Weather, Beijing 100081, Peoples R China.
中文摘要	Variations in the solar wind dynamic pressure can create changes in the auroral brightness, especially in the dayside region. In this study, mainly using Polar Ultraviolet Imager auroral images and NASA OMNI magnetic field and plasma data, we investigate the relationship between interplanetary parameters and dayside aurora intensification. We first identify the dayside aurora cases caused by the solar wind dynamic pressure increases from 1997 through 1999 and divide these cases into two types: one with intensification and the other without significant intensification following the increase in the solar wind dynamic pressure. Then, case by case, we examine the separate roles of the solar wind density and velocity on auroral brightness. Our result demonstrates that the dayside aurora intensification requires the contributions of both the density and solar wind velocity increases. The solar wind density increase alone (without velocity increase) could not create the dayside aurora intensification.
英文摘要	Variations in the solar wind dynamic pressure can create changes in the auroral brightness, especially in the dayside region. In this study, mainly using Polar Ultraviolet Imager auroral images and NASA OMNI magnetic field and plasma data, we investigate the relationship between interplanetary parameters and dayside aurora intensification. We first identify the dayside aurora cases caused by the solar wind dynamic pressure increases from 1997 through 1999 and divide these cases into two types: one with intensification and the other without significant intensification following the increase in the solar wind dynamic pressure. Then, case by case, we examine the separate roles of the solar wind density and velocity on auroral brightness. Our result demonstrates that the dayside aurora intensification requires the contributions of both the density and solar wind velocity increases. The solar wind density increase alone (without velocity increase) could not create the dayside aurora intensification.
学科主题	空间物理
收录类别	SCI
资助信息	National Natural Science Foundation of China [40874087, 41031063]; China Meteorology Administration (CMA) [GYHY201106011]; China Public Science and Technology Research Funds Projects of Ocean [201005017]; China Postdoctoral Science Foundation [20100480247]
语种	英语
公开日期	2014-12-15
内容类型	期刊论文
源URL	[http://ir.nssc.ac.cn/handle/122/3101]
专题	国家空间科学中心_空间科学部
推荐引用方式 GB/T 7714	Yang, Y. F.,Lu, J. Y.,Wang, J-S,et al. Different response of dayside auroras to increases in solar wind dynamic pressure[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2011,116:A08314.
APA	Yang, Y. F.,Lu, J. Y.,Wang, J-S,Peng, Z.,Qian, Q.,&Xiao, Y..(2011).Different response of dayside auroras to increases in solar wind dynamic pressure.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,116,A08314.
MLA	Yang, Y. F.,et al."Different response of dayside auroras to increases in solar wind dynamic pressure".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 116(2011):A08314.