COMPARISON OF CME/SHOCK PROPAGATION MODELS WITH HELIOSPHERIC IMAGING AND IN SITU OBSERVATIONS

doi:10.3847/0004-637X/830/1/48

	COMPARISON OF CME/SHOCK PROPAGATION MODELS WITH HELIOSPHERIC IMAGING AND IN SITU OBSERVATIONS
	Zhao, Xinhua 1,2; Liu, Ying D.1,3; Inhester, Bernd 2; Feng, Xueshang 1; Wiegelmann, Thomas 2; Lu, Lei 2,3,4
刊名	ASTROPHYSICAL JOURNAL
	2016-10-10
卷号	830 期号:1 页码:11
关键词	shock waves solar-terrestrial relations solar wind Sun: coronal mass ejections (CMEs)
ISSN号	0004-637X
DOI	10.3847/0004-637X/830/1/48
通讯作者	Zhao, Xinhua(xhzhao@spaceweather.ac.cn)
英文摘要	The prediction of the arrival time for fast coronal mass ejections (CMEs) and their associated shocks is highly desirable in space weather studies. In this paper, we use two shock propagation models, i.e., Data Guided Shock Time Of Arrival (DGSTOA) and Data Guided Shock Propagation Model (DGSPM), to predict the kinematical evolution of interplanetary shocks associated with fast CMEs. DGSTOA is based on the similarity theory of shock waves in the solar wind reference frame, and DGSPM is based on the non-similarity theory in the stationary reference frame. The inputs are the kinematics of the CME front at the maximum speed moment obtained from the geometric triangulation method applied to STEREO imaging observations together with the Harmonic Mean approximation. The outputs provide the subsequent propagation of the associated shock. We apply these models to the CMEs on 2012 January 19, January 23, and March 7. We find that the shock models predict reasonably well the shock's propagation after the impulsive acceleration. The shock's arrival time and local propagation speed at Earth predicted by these models are consistent with in situ measurements of WIND. We also employ the Drag-Based Model (DBM) as a comparison, and find that it predicts a steeper deceleration than the shock models after the rapid deceleration phase. The predictions of DBM at 1 au agree with the following ICME or sheath structure, not the preceding shock. These results demonstrate the applicability of the shock models used here for future arrival time prediction of interplanetary shocks associated with fast CMEs.
WOS关键词	CORONAL MASS EJECTIONS ; INTERPLANETARY SHOCK-WAVES ; ENERGETIC PARTICLE EVENTS ; TO-EARTH PROPAGATION ; SOLAR-FLARE ; ARRIVAL-TIME ; SPACE WEATHER ; 1 AU ; SUN ; DISTURBANCES
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000400463200001
内容类型	期刊论文
源URL	[http://libir.pmo.ac.cn/handle/332002/22856]
专题	中国科学院紫金山天文台
通讯作者	Zhao, Xinhua
作者单位	1.Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, Beijing 100190, Peoples R China 2.Max Planck Inst Sonnensyst Forsch, D-37077 Gottingen, Lower Saxony, Germany 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Purple Mt Observ, Key Lab Dark Matter & Space Astron, Nanjing, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Xinhua,Liu, Ying D.,Inhester, Bernd,et al. COMPARISON OF CME/SHOCK PROPAGATION MODELS WITH HELIOSPHERIC IMAGING AND IN SITU OBSERVATIONS[J]. ASTROPHYSICAL JOURNAL,2016,830(1):11.
APA	Zhao, Xinhua,Liu, Ying D.,Inhester, Bernd,Feng, Xueshang,Wiegelmann, Thomas,&Lu, Lei.(2016).COMPARISON OF CME/SHOCK PROPAGATION MODELS WITH HELIOSPHERIC IMAGING AND IN SITU OBSERVATIONS.ASTROPHYSICAL JOURNAL,830(1),11.
MLA	Zhao, Xinhua,et al."COMPARISON OF CME/SHOCK PROPAGATION MODELS WITH HELIOSPHERIC IMAGING AND IN SITU OBSERVATIONS".ASTROPHYSICAL JOURNAL 830.1(2016):11.