Numerical Study of the Global Corona for CR 2055 Driven by Daily Updated Synoptic Magnetic Field

	Numerical Study of the Global Corona for CR 2055 Driven by Daily Updated Synoptic Magnetic Field
	Feng, Xueshang; Yang, L. P.; Xiang, C. Q.; Liu, Yang; Zhao, Xuepu; Wu, S. T.
	2011
会议名称	6th Annual International Conference on Numerical Modeling of Space Plasma Flows
会议日期	JUN 13-17, 2011
会议地点	Valencia, SPAIN
页码	202-208
通讯作者	Feng, XS (reprint author), Chinese Acad Sci, Ctr Space Sci & Appl Res, State Key Lab Space Weather, SIGMA Weather Grp, POB 8701, Beijing 100190, Peoples R China.
中文摘要	In this paper, a preliminary study of the global corona for Carrington rotation (CR) 2055 is carried out by the 3D Solar-Interplanetary (SIP) adaptive mesh refinement (AMR) space-time conservation element and solution element (CESE) MHD model (SIP-AMR-CESE MHD model) (Feng et al. 2011a), which is driven by the daily-updated magnetic field synoptic data. To incorporate the observations into the model, the lower boundary conditions are specified according to the flux evolution of the observed magnetic field and the normal projected characteristic method. The simulated results are compared with solar observations and in-situ solar wind measurements, which are mapped from both Ulysses and other near-Earth spacecraft to the computation domain. Comparisons show that the MHD results have good overall agreement with coronal and interplanetary structures, including the size and distribution of coronal holes and the transition of the solar wind speeds and magnetic field polarities. The MHD results are also compared with the Potential Field Source Surface (PFSS) and Wang-Sheeley-Arge (WSA) methods.
英文摘要	In this paper, a preliminary study of the global corona for Carrington rotation (CR) 2055 is carried out by the 3D Solar-Interplanetary (SIP) adaptive mesh refinement (AMR) space-time conservation element and solution element (CESE) MHD model (SIP-AMR-CESE MHD model) (Feng et al. 2011a), which is driven by the daily-updated magnetic field synoptic data. To incorporate the observations into the model, the lower boundary conditions are specified according to the flux evolution of the observed magnetic field and the normal projected characteristic method. The simulated results are compared with solar observations and in-situ solar wind measurements, which are mapped from both Ulysses and other near-Earth spacecraft to the computation domain. Comparisons show that the MHD results have good overall agreement with coronal and interplanetary structures, including the size and distribution of coronal holes and the transition of the solar wind speeds and magnetic field polarities. The MHD results are also compared with the Potential Field Source Surface (PFSS) and Wang-Sheeley-Arge (WSA) methods.
收录类别	CPCI
会议主办者	Univ Alabama, Ctr Space Plasma & Aeronom Res, French Commissariat Atom Energy, Inst Investigat Fundamental Laws Universe
会议录	NUMERICAL MODELING OF SPACE PLASMA FLOWS: ASTRONUM-2011
会议录出版者	ASTRONOMICAL SOC PACIFIC
会议录出版地	SAN FRANCISCO
学科主题	空间物理
语种	英语
ISBN号	978-1-58381-800-8
内容类型	会议论文
源URL	[http://ir.nssc.ac.cn/handle/122/3028]
专题	国家空间科学中心_空间科学部
推荐引用方式 GB/T 7714	Feng, Xueshang,Yang, L. P.,Xiang, C. Q.,et al. Numerical Study of the Global Corona for CR 2055 Driven by Daily Updated Synoptic Magnetic Field[C]. 见:6th Annual International Conference on Numerical Modeling of Space Plasma Flows. Valencia, SPAIN. JUN 13-17, 2011.