Joint study on Polar Cap Disturbances Using AGO Network

极光和地磁扰动在极冠地区的自动地球物理观测站(AGO)进行了调查，那里没有人安装观测这些现象的仪器。我们开发了观测极光和地磁扰动的仪器，并在6个AGO站运行，得到了美国科学家的证实。活动内容如下：1.搜索线圈磁强计和光度计的发展我们研制了两台搜索线圈磁强计，作为AGO站运行的磁强计的备用设备。我们还制作了具有非常高的数据采样率的光度计。搜索线圈磁强计和光度计测试Fukunishi、Takahashi和Fujito与斯坦福大学的一组人在美国科罗拉多州尤卡里奇检查了磁力计和光度计。我们获得了在AGO站观测极光和地磁扰动的良好灵敏度。安装在AGO站1995年10月，我们在…安装了AGO-5和AGO-6站的搜索线圈磁力仪更多的南极洲麦克默多站。对AGO数据的分析1995年12月，Fukunishi和Takahashi访问了斯坦福大学，对AGO台站获得的极光、磁场和ELF-VLF波数据进行了分析。1996年12月，Fukunishi和Katsuyama再次访问斯坦福大学，详细分析了AGO数据。福岛于1996年8月访问了英国南极洲实验室，对AGO数据进行了分析和讨论。奥格斯堡大学的Engebretson教授访问了托霍基大学，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了比较。关于出版和未来工作的讨论福岛于1996年8月访问了英国教堂大学，介绍了我们的成果和未来计划，并停留了一周。1996年12月，Fukunishi和Katsuyama访问了斯坦福大学，讨论了未来的计划。我们从对AGO数据的详细分析中发现了新的结果。其中一个有趣的结果是磁脉冲事件(MIE)和Pc1爆发之间的关联。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，他们指出了MIE和ELF-VLF波之间的良好关联。在6个AGO站，所有仪器仍然工作正常。我们正在用卫星和雷达数据调查我们的AGO数据。这些结果将为我们理解极冠现象提供更大的进展。较少

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