Progress in the Project for Development of GPS/Acoustic Technique Over the Last 4 Years
Progress in the Project for Development of GPS/Acoustic Technique Over the Last 4 Years
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GPS/声学技术开发项目近4年进展
DOI：
10.1007/1345_2015_127
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
Misae Imano
中科院分区：
文献类型：
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作者：
M. Kido;H. Fujimoto;R. Hino;Y. Ohta;Y. Osada;T. Iinuma;R. Azuma;I. Wada;S. Miura;Syuichi Suzuki;F. Tomita;Misae Imano
GPS/声学（GPS/A）测量是在远离海岸的海洋中探测地壳形变的最有前途的方法，在那里没有密集的陆上GPS网络。监测海底变形对于了解俯冲带等具有地球物理意义的区域的构造状态至关重要。我们东北大学，与名古屋大学和日本海岸警卫队一起致力于日本岛屿周围的GPS/A调查和开发其仪器十多年。特别是在2010年开始了GPS/A技术开发的新项目，自2012年东北地震以来，该项目进一步加速。东北大学和名古屋大学已经在这个项目上工作了4年。在该项目中，东北大学开展了几个课题，例如使用系泊浮标实时/连续监测地壳变形，使用自主水面车辆（ASV）进行自动测量，这使得测量尽可能有效，以及沿着日本海沟构建新的GPS/声学测量网络，并使用租用船只进行密集测量。在本文中，我们总结了在上述每个主题的成果。
GPS/Acoustic (GPS/A) survey is the most promising way to detect crustal deformation in the ocean far from the coast, where a dense onshore GPS network is not available. Monitoring seafloor deformation is crucial to understand the tectonic state in regions of geophysical significance such as subduction zones. We, Tohoku University, together with Nagoya University and Japan Coast Guard have been dedicated to GPS/A survey around the Japanese Islands and developing its instruments for more than a decade. Especially in 2010, a new project for the development of the GPS/A technique commenced, and since 2012 following the Tohoku earthquake, further acceleration of the project has been taken place. Tohoku and Nagoya Universities have been working on this project for 4 years. In the project, Tohoku University worked on several topics, such as realtime/continuous monitoring of crustal deformation using a moored buoy, automatic survey using an Autonomous Surface Vehicle (ASV), which makes the survey as efficient as possible, and constructing a new GPS/acoustic survey network along the Japan Trench and their intensive survey using a chartered ship. In this paper, we summarize the achievements in each of the topics above.