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Joint study on Polar Cap Disturbances Using AGO Network

利用 AGO 网络对极冠扰动进行联合研究

基本信息

批准号：
07044053
负责人：
FUKUNISHI Hiroshi
金额：
$ 3.26万
依托单位：
TOHOKU UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for international Scientific Research
财政年份：
1995
资助国家：
日本
起止时间：
1995 至 1996
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07044053/
关键词：
Polar Cap Aurora AGO Magnetic Disturbances

项目摘要

Auroras and geomagnetic disturbances have been investigated at Automatic Geophysical Observatories (AGO) in the polar cap region where nobody had installed the instruments to observe those phenomena. We developed the instruments to observe auroras and geomagnetic disturbances and operated at 6 AGO stations with corroborations with scientists of the United States. The activities are as follows.1. Developments of search coil magnetometer and photometerWe made two search coil magnetometers for back up of magnetometers operated at AGO stations. We also made photometers with very high data sampling.2. Tests of search coil magnetometer and photometerFukunishi, Takahashi and Fujito checked magnetometers and photometers at Yucca Ridge of Colorado, USA with a group of Stanford University. We obtained good sensitivities to observe auroras and geomagnetic disturbances at AGO stations.3. Set up at AGO stationOn October, 1995, we set up our search coil magnetometers for AGO-5 and AGO-6 stations at … More MacMurdo station of Antarctica.4. Analyzes of AGO dataOn December, 1995, Fukunishi and Takahashi visited Stanford University to analyze the data of auroras, magnetic fields and ELF-VLF waves obtained at AGO stations. On December, 1996, Fukunishi and Katsuyama visited Stanford University again to analyze the AGO data in detail. Fukunishi visited Laboratory of Antarctica of UK to analyze the AGO data and to have discussions on August, 1996. Prof.Engebretson of Augsburg University visited Tohoky University to compare between his obtained flux gate magnetometer data and our search coil magnetometer data.5. Discussions of publication and future workFukunishi visited Church University of UK to present our results and future plan on August, 1996 and stayd for one week. Fukunishi and Katsuyama visited Stanford University to discuss future plan on December, 1996.We found new results from the detailed analyzes of AGO data. One of the interesting results is the correlations between magnetic impulse events (MIE) and Pc 1 bursts. We analyze the events in detail with Dr.Lanzerotti of Bell Laboratory and Prof.Engebretson of Augsburg University who indicates the good correlations between MIE and ELF-VLF waves. All instruments are still working well at 6 AGO stations. We are investigating our AGO data with satellite and radar data. Those results will provide us more large progress in understanding polar cap phenomena. Less

极光和地磁扰动已在没有人安装观测这些现象的仪器的极冠地区自动地球物理观测站进行了研究。我们研制了观测极光和地磁扰动的仪器，并在美国科学家的证实下，在AGO的6个台站运行。这些活动如下：1.探线圈磁力仪和光度计的发展我们制作了两台探线圈磁力仪，作为AGO台站磁力仪的备份。我们还制作了具有非常高数据采样的光度计。2.搜索线圈磁力计和光度计的测试大西，高桥和藤检查磁力计和光度计在尤卡岭的科罗拉多，美国与一组斯坦福大学。我们获得了良好的灵敏度观测极光和地磁扰动在AGO站。1995年10月，我们为AGO-5和AGO-6站设置了我们的搜索线圈磁强计， ...更多信息麦克默多站的舌tica。4. 1995年12月，高西和高桥访问了斯坦福大学，分析了AGO站获得的极光、磁场和ELF-VLF波的数据。1996年12月，西和胜山再次访问了斯坦福大学，详细分析了AGO数据。1996年8月，西田访问了英国南极实验室，分析AGO数据并进行了讨论。奥格斯堡大学的Engebretson教授访问了东北大学，将他获得的磁通门磁力仪数据与我们的搜索线圈磁力仪数据进行比较。1996年8月，日本大学访问了英国教会大学，介绍了我们的成果和未来的计划，并停留了一周。1996年12月，日本学者西田和胜山访问了斯坦福大学，讨论了今后的计划。磁脉冲事件（MIE）与Pc 1爆发之间的相关性是一个有趣的结果.我们与贝尔实验室的Lanzerotti博士和奥格斯堡大学的Engebretson教授一起详细分析了这些事件，他们指出MIE和ELF-VLF波之间有很好的相关性。所有仪器在AGO的6个台站仍然工作良好。我们正在用卫星和雷达数据调查我们的AGO数据。这些结果将为我们对极盖现象的认识提供更大的进展。少