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Assessment of CESE-HLLD ambient solar wind model results using multipoint observation
Alternative TitleWOS:000576158400002
Li, Huichao1; Feng, Xueshang1; Wei, Fengsi1
Source PublicationJOURNAL OF SPACE WEATHER AND SPACE CLIMATE
2020
Volume10Pages:44
DOI10.1051/swsc/2020048
ISSN2115-7251
Language英语
Keywordsolar wind magnetohydrodynamics modeling multipoint assessment CORONAL MASS EJECTIONS SPACE WEATHER FORECAST VERIFICATION INNER HELIOSPHERE 1 AU ULYSSES EARTH SUN VALIDATION PLASMA
AbstractFor a three-dimensional magnetohydrodynamics solar wind model, it is necessary to carry out assessment studies to reveal its ability and limitation. In this paper, the ambient solar wind results of year 2008 generated by the CESE-HLLD 3D MHD model are compared with multipoint in-situ measurements during the late declining phase of solar cycle 23. The near-ecliptic results are assessed both quantitatively and qualitatively by comparing with in-situ data obtained at the L1 point and by the twin STEREO spacecraft. The assessment reveals the model's ability in reproducing the time series and statistical characteristics of solar wind parameters, and in catching the change of interplanetary magnetic field polarity and the occurrence of the stream interaction regions. We find that the two-stream structure observed near the ecliptic plane is reproduced, but the differences among observations at L1 and the twin STEREO spacecraft are not caught by the model. The latitudinal variation of the results is assessed by comparing with the Ulysses observation. The characters of variation in different latitudinal ranges are duplicated by the model, but biases of the results are seen, and the boundary layers between fast and slow solar wind are sometimes thicker than observation.
Indexed BySCI
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Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/7513
Collection中国科学院国家空间科学中心
Affiliation1.Harbin Inst Technol Shenzhen, Inst Space Sci & Appl Technol, Shenzhen 518055, Peoples R China
2.Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, SIGMA Weather Grp, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Li, Huichao,Feng, Xueshang,Wei, Fengsi. Assessment of CESE-HLLD ambient solar wind model results using multipoint observation[J]. JOURNAL OF SPACE WEATHER AND SPACE CLIMATE,2020,10:44.
APA Li, Huichao,Feng, Xueshang,&Wei, Fengsi.(2020).Assessment of CESE-HLLD ambient solar wind model results using multipoint observation.JOURNAL OF SPACE WEATHER AND SPACE CLIMATE,10,44.
MLA Li, Huichao,et al."Assessment of CESE-HLLD ambient solar wind model results using multipoint observation".JOURNAL OF SPACE WEATHER AND SPACE CLIMATE 10(2020):44.
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