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MHD Modeling of the Background Solar Wind in the Inner Heliosphere From 0.1 to 5.5 AU: Comparison With In Situ Observations
Alternative TitleWOS:000545698500006
Wang, Y. X.; Guo, X. C.; Wang, C.; Florinski, V.; Shen, F.; Li, H.; Blanc, M.
Source PublicationSPACE WEATHER-THE INTERNATIONAL JOURNAL OF RESEARCH AND APPLICATIONS
2020
Volume18Issue:6Pages:e2019SW002262
DOI10.1029/2019SW002262
Language英语
Keywordmagnetohydrodynamics (MHD) solar wind Sun heliosphere Juno Jupiter MAGNETIC-FIELD RIEMANN SOLVER INTERPLANETARY SPEED FLUX MAGNETOSPHERE INTENSITY CORONA
AbstractThe accurate prediction of solar wind conditions in the interplanetary space is crucial in the context of both scientific research and technical applications. In this study, we simulate the solar wind throughout the heliosphere from 0.1 to 5.5 astronomical units (AU) with our improved heliospheric magnetohydrodynamics (MHD) model during the time period from 2007 to 2017. The model uses synoptic magnetogram maps as input to derive the inner boundary conditions based on a series of empirical relations such as the Wang-Sheeley-Arge (WSA) relation. To test the performance of this model, we compare the simulation results with in situ measurements from multiple spacecraft including ACE/WIND, Solar TErrestrial Relations Observatory, Ulysses, Juno, and MErcury Surface, Space ENvironment, GEochemistry, and Ranging at different latitudes and heliocentric distances. There is an overall agreement between the model results and solar wind observations at different latitudes and heliocentric distances. Statistical analysis for Year 2007 reveals that our model can predict most of the corotation interaction regions, high-speed streams, and magnetic sector boundaries at 1 AU. In addition, the bimodal structure of the solar wind for different latitudes is well reproduced by the model which is consistent with Ulysses data. This study demonstrates the capabilities of our heliosphere model in the prediction of the large-scale structures of the solar wind in the inner heliosphere, and the model can be used to predict the ambient solar wind at locations of planets in the solar system such as Earth and Jupiter.
Indexed BySCI
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Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/7576
Collection中国科学院国家空间科学中心
Affiliation1.[Wang, Y. X.
2.Guo, X. C.
3.Wang, C.
4.Shen, F.
5.Li, H.
6.Blanc, M.] Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, Beijing, Peoples R China
7.[Wang, Y. X.
8.Guo, X. C.
9.Wang, C.
10.Shen, F.
11.Li, H.] Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China
12.[Florinski, V.] Univ Alabama, Ctr Space Plasma & Aeron Res, Huntsville, AL 35899 USA
13.[Blanc, M.] Univ Paul Sabatier, CNRS, IRAP, Toulouse, France
Recommended Citation
GB/T 7714
Wang, Y. X.,Guo, X. C.,Wang, C.,et al. MHD Modeling of the Background Solar Wind in the Inner Heliosphere From 0.1 to 5.5 AU: Comparison With In Situ Observations[J]. SPACE WEATHER-THE INTERNATIONAL JOURNAL OF RESEARCH AND APPLICATIONS,2020,18(6):e2019SW002262.
APA Wang, Y. X..,Guo, X. C..,Wang, C..,Florinski, V..,Shen, F..,...&Blanc, M..(2020).MHD Modeling of the Background Solar Wind in the Inner Heliosphere From 0.1 to 5.5 AU: Comparison With In Situ Observations.SPACE WEATHER-THE INTERNATIONAL JOURNAL OF RESEARCH AND APPLICATIONS,18(6),e2019SW002262.
MLA Wang, Y. X.,et al."MHD Modeling of the Background Solar Wind in the Inner Heliosphere From 0.1 to 5.5 AU: Comparison With In Situ Observations".SPACE WEATHER-THE INTERNATIONAL JOURNAL OF RESEARCH AND APPLICATIONS 18.6(2020):e2019SW002262.
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