Observation and preliminary analysis of magnetic field changes induced by ocean waves
文献类型：期刊论文
| 作者 | Dai Jia-Long1; Du Ai-Min2; Ou Jia-Ming2; Zhang Ying2; Zhao Lin2; Yi Zhong1; Meng Li-Fei1; Wang Bin1 |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2017-04-01 |
| 卷号 | 60期号:4页码:1521-1526 |
| 关键词 | Ocean wave Magnetic field changes Induced magnetic field Spectral analysis |
| ISSN号 | 0001-5733 |
| DOI | 10.6038/cjg20170424 |
| 文献子类 | Article |
| 英文摘要 | Near shore ocean wave has significant impact on the near shore ocean environmental status. The characteristics of near shore ocean wave are substantial to human activities at near shore, such as coast protection work, near shore transportation, and military activity. The measurement of the induced magnetic field changes is an effective tool to detect and study the nonlinear processes of near shore ocean wave. In this paper, we conduct a spectral index analysis on the induced magnetic field generated by near shore ocean waves for the first time. The spectral sections for the processes of energy input and dissipation are finally obtained. A survey of the induced magnetic field at the beach was conducted with the KDM-2 fluxgate magnetometers at Changli city from 15(th) May to 30(th) June 2016. The fluxgate magnetometer has the resolution of 0.01 nT/root Hz, with two sampling rates of 1 Hz and 128 Hz, respectively. Our results clearly show that the magnetic field changes caused by the ocean waves can be detected and stored by our measurements, with the observing distance of 2 meters from the coast. The maximum amplitude of magnetic signals is about 1 nT within the frequency band of 0.001 similar to 10.0 Hz. The wavelet spectra show that the configuration of the magnetic energy has multiple harmonic structures, which is consistent with the characteristics of near shore ocean waves. Through the FFT analysis, the spectral line is shown separated to several sections with different slopes, suggesting a development of nonlinear physical process and dissipation of ocean near shore waves. Long term observation and statistical analysis in the future are necessary, which can helpful to understand the electrodynamic process in the ocean. |
| WOS关键词 | SEA |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000399967500024 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/42513]  |
| 专题 | 地质与地球物理研究所_中国科学院地球与行星物理重点实验室 |
| 通讯作者 | Dai Jia-Long |
| 作者单位 | 1.Beijing Inst Spacecraft Environm Engn, Beijing 100094, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dai Jia-Long,Du Ai-Min,Ou Jia-Ming,et al. Observation and preliminary analysis of magnetic field changes induced by ocean waves[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2017,60(4):1521-1526. |
| APA | Dai Jia-Long.,Du Ai-Min.,Ou Jia-Ming.,Zhang Ying.,Zhao Lin.,...&Wang Bin.(2017).Observation and preliminary analysis of magnetic field changes induced by ocean waves.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,60(4),1521-1526. |
| MLA | Dai Jia-Long,et al."Observation and preliminary analysis of magnetic field changes induced by ocean waves".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 60.4(2017):1521-1526. |
入库方式： OAI收割
来源：地质与地球物理研究所
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