The shape of strongly disturbed dayside magnetopause

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题名:	The shape of strongly disturbed dayside magnetopause
作者:	蘇亞拉;Dmitriev, Alexei V.;Suvorova, Alla V.
贡献者:	全球大氣觀測與資料應用研究中心
关键词:	Earth;Earth magnetosphere;Field aligned currents;Geomagnetic disturbances;Geomagnetic storm;Geomagnetism;Interplanetary magnetic field;Magnetic field;Magnetic fields;Magnetism;Magnetohydrodynamics;Magnetopause;Magnetosphere;Magnetospheric boundary;Magnetospheric currents;Magnetospheric plasma;Nose;Pressure;Ring currents;Saturation;Solar wind;Storm forecasting;Storms;Wind pressure
日期:	2013-04-01
上传时间:	2026-04-23 11:25:18 (UTC+8)
出版者:	Chinese Geoscience Union;Taiwan: 中華民國地球科學學會
摘要:	摘要： During strong geomagnetic disturbances, the Earth's magnetosphere exhibits unusual and nonlinear interaction with the incident flow of magnetized solar wind plasma. Global Magneto-hydro-dynamic (MHD) modeling of the magnetosphere predicts that the storm-time effects at the magnetopause result from the abnormal plasma transport and/or extremely strong field aligned currents. In-situ observations of the magnetospheric boundary, magnetopause, by Geosynchronous Operational Environmental Satellite (GOES) allowed us to find experimentally such effects as a saturation of the dayside reconnection, unusual bluntness and prominent duskward skewing of the nose magnetopause. The saturation and duskward skewing were attributed to the storm-time magnetopause formation under strong southward interplanetary magnetic field (IMF). The unusual bluntness was observed during both high solar wind pressure and strong southward IMF. We suggest that these phenomena are caused by a substantial contribution of the cross-tail current magnetic field and the hot magnetospheric plasma from the asymmetrical ring current into the pressure balance at the dayside magnetopause. 出版者： Taiwan: 中華民國地球科學學會出版日期： 2013-04-01 出處： TAO : Terrestrial, atmospheric, and oceanic sciences, 2013-04, Vol.24 (2), p.225-232 資源來源：華藝CEPS中文電子期刊服務版權： 2013. This work is licensed under https://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. 識別號： ISSN: 1017-0839 識別號： ISSN: 2223-8964 識別號： ISSN: 2311-7680 識別號： EISSN: 2311-7680 識別號： DOI: 10.3319/TAO.2012.09.26.02(SEC)
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