Solar Wind Energy Transfer into the Equatorial Ionosphere

太阳风能转移到赤道电离层

• 批准号: 08041105
• 负责人: YUMOTO Kiyohumi
• 金额: $ 13.31万
• 依托单位: KYUSHU UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for international Scientific Research
• 财政年份: 1996
• 资助国家: 日本
• 起止时间: 1996 至 1997
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08041105/
• 关键词: solar wind changes; polar disturbances; magnetic equator; transfer process; 210 MM network; equatorial network; global observations; international collaboration; 赤道域; グローバル; 国際共同観測

Multinationally coordinated observations have been conducted along the 210 deg.magnetic meridian from high latitudes through middle and low latitudes to the equaatorial region, spanning L=8.50-1.00, and along the dip equator, in cooperation with more 30 organizations in Australia, Brazil, Canada, China, Indonesia, Japan, Korea, Micronesia, Papua New Guinea, Peru, Philippines, Russia, Taiwan, Vietnam, and the United States. The organized ground network data of magnetic fields make ita possible (1) to study the magnetospheric responses to various changes in the solar wind, by distinguishing bitween temporal changes and spatial variations in the phenomena, and (2) to clarify the global propagation, transfer, and coupling processes of magnetospheric phenomena from the polar to equatorial regions.During the period of 1996-1997, the following multinationaily coordinated observations and research project were performed ;(1) In order to clarify the relationships of magnetospheric phenomena in … More the polar and equatorial regions, we coducted magnetic and electric field observations in Siberia, Alaska, Philippines, Guam, and Yap in the 210 MM network, and nagotiated with the institutes in Canada, Brazil and Pere for collaborative magnetic observations.(2) Optical and magnetic equipments (i.e., all-sky TV camerain, induction and flux gate magnetometers) in Canada, which were installed by University of Tokyo and Nagoya University during the STEP period, were re-used for the global network observations.(3) Magnetic observations at middle-and low-latitude stations in Korea, Hawaii, Papua New Guinea, Pohnpei, Indonesia, and Australia in the Pacific region were also carried out to study the propagation and transfer processes of magnetospheric phenomena from the polar to equatorial regions.(4) Especially, electromagnetic observations along the dip equator in the west Pacific region at Cebu and Davao in Philippines, at Pohnpei, Yap, Guam and Christmas Island in Micronesia, were started to investigate the dynamics of equatorial electrojet current and the associated phenomena.(5) For effective data analyzes and exchanges with the ISTP satellites and the other ground-based networks, the investigators of this project were dispatched to the Western Pacific Geophysical Meeting, held in Australia in 1996, and the IAGA,held at Uppsala in 1997.(6) Summary report of research results was published in March, 1998.From the multinationally coordinated observations along the 210 deg.magnetic meridian from high latitudes to the equatorial region, and along the dip equator, we could get important network data to study the magnetospheric responses to various changes in the solar wind, and clarify the global propagation and transfer characteristics of magnetospheric phenomena in the frequency range of DP2-Pc3, from the polar to equataorial regions. Less

与澳大利亚、巴西、加拿大、中国、印度尼西亚、日本、韩国、密克罗尼西亚、巴布亚新几内亚、秘鲁、菲律宾、俄罗斯、台湾、越南和美国的30多个组织合作，沿着210°磁子午线从高纬度穿过中低纬度到赤道区，跨越L=8.5-1.00，并沿着倾斜赤道进行了多国协调观测。有组织的地磁场地面网络数据使以下工作成为可能：(1)通过区分磁层现象的时间变化和空间变化，研究磁层对太阳风各种变化的响应；(2)阐明磁层现象从极地到赤道地区的全球传播、传输和耦合过程。在1996年至1997年期间，进行了下列多国协调的观测和研究计划；(1)为了澄清…中磁层现象的关系在更多的极地和赤道地区，我们在210 MM网络中进行了西伯利亚、阿拉斯加、菲律宾、关岛和YAP的磁场和电场观测，并与加拿大、巴西和Pere的研究所合作进行磁观测。(2)东京大学和名古屋大学在步长期间安装的加拿大光学和磁力设备(即全天电视摄像机、感应和磁通门磁强计)被重复用于全球网络观测。(3)韩国、夏威夷、巴布亚新几内亚、波恩培、印度尼西亚、(4)特别是在菲律宾宿务和达沃的西太平洋地区、密克罗尼西亚的波恩佩、雅普、关岛和圣诞岛开始了电磁观测，以研究赤道电喷流的动力学和相关现象。(5)为了与ISTP卫星和其他地面网络进行有效的数据分析和交流，本项目的研究人员被派往1996年在澳大利亚举行的西太平洋地球物理会议和IAGA，(6)1998年3月发表了研究成果总结报告。从210°磁子午线从高纬度到赤道区和沿倾角赤道的多个坐标观测中，我们可以获得重要的网络数据，以研究磁层对太阳风各种变化的响应，并阐明在DP2-PC3频率范围内，从极地到赤道地区磁层现象的全球传播和传输特征。较少

项目成果

Kawano,H.K.Yumoto, H.Matsumoto, T.Murata,et al.: "A quasi-stagnant plasmoid observed with Geotail on October 15,1993" J.Geomag.Geoelectr. 48. 525-539 (1996)

Kawano、H.K.Yumoto、H.Matsumoto、T.Murata 等人：“1993 年 10 月 15 日用 Geotail 观察到的准静止等离子体团” J.Geomag.Geolectr。

Osaki,H., K.Yumoto, K.Fukao, K.Shiokawa,the 210 MM Magnetic Observation Group,et al.: "Characteristics of low-latitude Pi 2 pulsations along the 210 magnetic meridian" J.Geomag.Geoelectr. 48. 1421-1430 (1996)

Osaki,H.、K.Yumoto、K.Fukao、K.Shiokawa、210 MM磁力观测组等：“沿210磁子午线的低纬度Pi 2脉动特征”J.Geomag.Geolectr。

Seto,M., K.Yumoto, Y.Kitamura the 210o MM Magnetic Observation Group,et al.: "Induction arrows computed for the 210o MM magnetic observation stations" Mem.Fac.Sei.,Kyushu Univ.29,No.2. 145-157 (1996)

Seto,M., K.Yumoto, Y.Kitamura the 210o MM Magnetic Observation Group,et al.: “Induction arrowsulated for the 210o MM Magnetic Observation Stations” Mem.Fac.Sei.,Kyushu Univ.29,No.2

Shinohara,K., K.Yumoto, A.Yoshikawa, O.Saka, S.I.Solovyev,E.F.Vershinin,N.B.Trivedi,J.M.Da Costa and the 210 AK MM Magnetic Observation Group: "Wave characteristics of daytime and nighttime Pi 2 pulsations at the equatorial and low latitudes" Geophys.Res.

Shinohara,K.、K.Yumoto、A.Yoshikawa、O.Saka、S.I.Solovyev、E.F.Vershinin、N.B.Trivedi、J.M.Da Costa 和 210 AK MM 磁观测组：“白天和夜间 Pi 2 脉动的波特征

K.Shiokawa, K.Yunoto, N.Nishitani, K.Hayashi, T.Oguti, D.J.McEwen, Y.Kiyama, F.J.Rich and T.Mukai: "Quasi-periodic poleward motions of sun-aligned auroral arcs in the high-latitude morning sector" J.Geophys.Res.101. 19789-19800 (1996)

K.Shiokawa、K.Yunoto、N.Nishitani、K.Hayashi、T.Oguti、D.J.McEwen、Y.Kiyama、F.J.Rich 和 T.Mukai：“高空区域与太阳对齐的极光弧的准周期极向运动