Detection of volcano-magnetic changes by aero-magnetic survey

航磁探测火山地磁变化

基本信息

批准号：
15403007
负责人：
TANAKA Yoshikazu
金额：
$ 8.26万
依托单位：
KYOTO UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2003
资助国家：
日本
起止时间：
2003 至 2005
项目状态：
已结题

项目摘要

Four persons made a voyage to White Island of the New Zealand, the proton magnetometer was installed in two points, and ground continuation magnetic field observation was started and also SP measurement was performed in 2003 fiscal year.While five persons made a voyage in the 2004 fiscal year and performing recovery of continuation magnetic field data and ground repetition magnetic field observation, the aero-magnetic survey of the airraid altitudes 50m and 100m was carried out with helicopter. Seven persons made a voyage in the Heisei 17 fiscal year, and the repetition magnetic survey in the ground and the air was carried out. Unfortunately, volcanic activity of the White Island was calm and remarkable magnetic change was not detected. However, the observation technical problem about an air magnetism survey was mostly solved through this research.Namely, the positioning of the flight sensor was achieved with installation of highly precise GPS receiver in the ground and a bird. It asks … More with an error 1m or less by carrying out differential analysis. It is necessary to detach 40m to avoid the influence of magnetization of a helicopter to the body, and a bird hanging system is excellent in it. The form and cylinder wings of a bird for obtaining a stable flight have been determined. The highly precise cesium magnetometer has owned at the university. The system which displays a GPS position on a PC screen in realtime, and is used for route guidance has been developed.It is also one of the results that it was able to be shown that a flight experiment can be repeated in the volcano in Aso, Kuju, Sakurajima, Bandai, and Asama ignited by this research, and an air magnetic survey can carry out comparatively easily also by the researcher of a university.The subject which especially catches a volcanic magnetic field change by the air magnetic survey which was the big target of this research has been attained by having obtained the result which detects ground observation and a conformable volcanic magnetic field change of 50nT from the analysis of the air magnetism survey data in 1996 in the Kuju volcano, and 2004.These research results presented in the study group of the ISAG2006 air physics inquiry international symposium held in Tsukuba in January, 2006. Less

Four people made a voyage to White Island of the New Zealand, the proton magnetometer was installed in two points, and ground continuation magnetic field observation was started and also SP measurement was performed in 2003 fiscal year.While five people made a voyage in the 2004 fiscal year and performing recovery of continuation magnetic field data and ground repetition magnetic field observation, the aero-magnetic survey of the airraid altitudes 50m and 100m was与直升机一起进行。七人在海耶伊（Heisei）17会计年度进行了航行，在地面上进行了重复磁调查，并进行了空气。不幸的是，白岛的火山活动是平静的，没有检测到巨大的磁变化。但是，关于空气磁性调查的观察技术问题主要通过这项研究解决。即，通过在地面上安装高度精确的GPS接收器和鸟类来实现飞行传感器的定位。它通过进行差分分析来询问……更多的错误1M或更少。有必要脱离40m，以避免直升机对人体的磁化影响，并且鸟悬挂系统在其中非常好。已经确定了用于获得稳定飞行的鸟的形式和圆柱体翅膀。高度精确的颅磁力计已在大学拥有。实时在PC屏幕上显示GPS位置的系统，并已开发用于路线指导。它也是能够证明可以证明，可以在ASO，Kuju，Sakurajima，Sakurajima，Bandai和Asama的火山中重复进行飞行实验的结果之一，并在此研究中尤其可以进行磁性磁心范围，并且可以通过一定的研究来进行磁力范围。通过空气磁调查，这是这项研究的主要目标是通过获得的结果，该结果检测到1996年在Kuju火山的空气磁化调查数据的分析和2004年的空气磁化调查数据和2004年的一致性火山磁场变化，以及2004年的这些研究结果。