{"title":"2021年11月4日地磁暴事件的热层风观测与模拟","authors":"Qian Wu, D. Lin, Wenbin Wang, W. Ward","doi":"10.5140/jass.2022.39.3.79","DOIUrl":null,"url":null,"abstract":"Thermospheric wind observations from high to mid latitudes are compared with the\n newly developed Multiscale Atmosphere Geospace Environment (MAGE) model for the Nov 3–4\n geomagnetic storm. The observation and simulation comparison shows a very good agreement\n and is better at high latitudes in general. We were able to identify a thermospheric\n poleward wind reduction possibly linked to a northward turning of the Interplanetary\n Magnetic Field (IMF) at ~22 UT on Nov 3 and an enhancement of the poleward wind to a\n southward turning near 10 UT on Nov 4 at high latitudes. An IMF southward turning may\n have led to an enhancement of equatorward winds at Boulder, Colorado near midnight.\n Simultaneous occurrence of aurora may be associated with an IMF By turning negative. The\n MAGE model wind simulations are consistent with observations in these cases. The results\n show the model can be a very useful tool to further study the magnetosphere and\n ionosphere coupling on short time scales.","PeriodicalId":44366,"journal":{"name":"Journal of Astronomy and Space Sciences","volume":null,"pages":null},"PeriodicalIF":0.6000,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Thermospheric Wind Observation and Simulation during the Nov 4, 2021 Geomagnetic\\n Storm Event\",\"authors\":\"Qian Wu, D. Lin, Wenbin Wang, W. Ward\",\"doi\":\"10.5140/jass.2022.39.3.79\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Thermospheric wind observations from high to mid latitudes are compared with the\\n newly developed Multiscale Atmosphere Geospace Environment (MAGE) model for the Nov 3–4\\n geomagnetic storm. The observation and simulation comparison shows a very good agreement\\n and is better at high latitudes in general. We were able to identify a thermospheric\\n poleward wind reduction possibly linked to a northward turning of the Interplanetary\\n Magnetic Field (IMF) at ~22 UT on Nov 3 and an enhancement of the poleward wind to a\\n southward turning near 10 UT on Nov 4 at high latitudes. An IMF southward turning may\\n have led to an enhancement of equatorward winds at Boulder, Colorado near midnight.\\n Simultaneous occurrence of aurora may be associated with an IMF By turning negative. The\\n MAGE model wind simulations are consistent with observations in these cases. The results\\n show the model can be a very useful tool to further study the magnetosphere and\\n ionosphere coupling on short time scales.\",\"PeriodicalId\":44366,\"journal\":{\"name\":\"Journal of Astronomy and Space Sciences\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.6000,\"publicationDate\":\"2022-09-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Astronomy and Space Sciences\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.5140/jass.2022.39.3.79\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"ASTRONOMY & ASTROPHYSICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Astronomy and Space Sciences","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.5140/jass.2022.39.3.79","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ASTRONOMY & ASTROPHYSICS","Score":null,"Total":0}
Thermospheric Wind Observation and Simulation during the Nov 4, 2021 Geomagnetic
Storm Event
Thermospheric wind observations from high to mid latitudes are compared with the
newly developed Multiscale Atmosphere Geospace Environment (MAGE) model for the Nov 3–4
geomagnetic storm. The observation and simulation comparison shows a very good agreement
and is better at high latitudes in general. We were able to identify a thermospheric
poleward wind reduction possibly linked to a northward turning of the Interplanetary
Magnetic Field (IMF) at ~22 UT on Nov 3 and an enhancement of the poleward wind to a
southward turning near 10 UT on Nov 4 at high latitudes. An IMF southward turning may
have led to an enhancement of equatorward winds at Boulder, Colorado near midnight.
Simultaneous occurrence of aurora may be associated with an IMF By turning negative. The
MAGE model wind simulations are consistent with observations in these cases. The results
show the model can be a very useful tool to further study the magnetosphere and
ionosphere coupling on short time scales.
期刊介绍：
JASS aims for the promotion of global awareness and understanding of space science and related applications. Unlike other journals that focus either on space science or on space technologies, it intends to bridge the two communities of space science and technologies, by providing opportunities to exchange ideas and viewpoints in a single journal. Topics suitable for publication in JASS include researches in the following fields: space astronomy, solar physics, magnetospheric and ionospheric physics, cosmic ray, space weather, and planetary sciences; space instrumentation, satellite dynamics, geodesy, spacecraft control, and spacecraft navigation. However, the topics covered by JASS are not restricted to those mentioned above as the journal also encourages submission of research results in all other branches related to space science and technologies. Even though JASS was established on the heritage and achievements of the Korean space science community, it is now open to the worldwide community, while maintaining a high standard as a leading international journal. Hence, it solicits papers from the international community with a vision of global collaboration in the fields of space science and technologies.
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