Advanced magnetic survey system and method for detailed magnetic field mapping near the sea bottom using an autonomous underwater vehicle
Advanced magnetic survey system and method for detailed magnetic field mapping near the sea bottom using an autonomous underwater vehicle
复制标题
使用自主水下航行器进行海底附近详细磁场测绘的先进磁测系统和方法
DOI：
10.1080/08123985.2022.2089013
复制
发表时间：
2022
影响因子：
0.9
通讯作者：
and K. Kitada
中科院分区：
文献类型：
--
作者：
Kasaya;T.;Y. Nogi;and K. Kitada
在海底附近进行的海洋磁场调查有助于生成洋壳图像，以确定其火山喷发历史、活跃的热液系统和热液矿床演化。自主水下航行器（AUV）可以在海底以上低空进行自控测量作业，同时保持稳定的航行器姿态。由于这些优点，AUV 在各种任务中引起了人们的关注。总磁场强度通常用于地下磁化图像。最近，矢量磁异常分析被认为对于地下磁化结构的高精度估计非常有效。然而，对车体产生的异常磁场进行校正是阻碍矢量磁异常分析的难点之一。因此，我们开发了专为 AUV URASHIMA 设计的磁力计系统，并配备更新的导航数据分配系统。在种子岛附近一座存在小型磁异常的海底泥火山周围进行了实验观测。结果表明，由于姿态，特别是俯仰变化而对飞行器磁场进行校正，对于使用 AUV 进行近海底磁力测量至关重要。基于这些结果，我们提出了一种合适的数据采集方法来消除车辆在 8 字形转弯时的俯仰效应。接下来，在热液区进行了实际观测，所提出的磁数据校正方法减少了节距变化的影响。这些结果表明，为了使用AUV获得高质量的磁异常数据，需要使用姿态数据对飞行器的磁场进行校正，尤其是俯仰变化。然而，由突然的音高变化引起的约 10 nT 的短周期变化仍然存在。
Marine magnetic field surveys conducted near the sea bottom are useful in producing images of the oceanic crust in order to ascertain its volcanic eruption history, active hydrothermal systems, and hydrothermal deposit evolution. An autonomous underwater vehicle (AUV) can carry out self-controlled survey operations while maintaining a stable vehicle attitude at low altitudes above the seafloor. As a result of these benefits, AUVs have attracted attention for various missions. The total magnetic field intensity is generally used for subsurface magnetization images. Recently, vector magnetic anomaly analysis has been considered to be extremely effective for high-accuracy estimation of subsurface magnetization structures. However, correcting for the anomalous magnetic field produced by the vehicle body is one of the difficulties that hinders vector magnetic anomaly analysis. Therefore, we developed a magnetometer system designed for the AUV URASHIMA with a renewed navigation data distribution system. Experimental observation was carried out around a submarine mud volcano with a small magnetic anomaly off Tanegashima Island. The results show that correction for the magnetic field of the vehicle because of the attitude, especially for changes in pitch, is essential for near-bottom magnetic surveys using AUVs. Based on these results, we proposed a suitable data acquisition method to remove the pitching effects of the vehicle for figure-eight turns. Next, practical observation was carried out in the hydrothermal area, and the proposed correction method for magnetic data reduced the pitch variation effect. These results indicate that the correction for the magnetic field of the vehicle based using attitude data, especially for pitching variations, is required in order to obtain high-quality magnetic anomaly data using AUVs. However, a short-period variation of approximately 10 nT caused by abrupt pitch changes remains.
使用自主水下航行器 r2D4 在巴约讷山丘火山口进行深海磁力勘测
DOI：
10.3124/segj.63.427
发表时间：
2010
期刊：
Butsuri-tansa(geophysical Exploration)
影响因子：
--
作者：
C. Honsho;T. Ura;K. Tamaki;K. Nagahashi;H. Shibazaki;Yoshitaka Hosoi
通讯作者：
Yoshitaka Hosoi
地壳磁化揭示了胡安德富卡海岭热液喷口场的地下结构
DOI：
--
发表时间：
2002
期刊：
影响因子：
--
作者：
M. Tivey;H. Johnson
通讯作者：
H. Johnson