Accurate measurement and inversion for the seafloor positions of Hadal landers
文献类型：期刊论文
| 作者 | Qiu XueLin1; Chen Han1; Chen Jun1,3; Chen ChuanXu3; Wang Yuan2; He EnYuan |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2019 |
| 卷号 | 62期号:5页码:1744 |
| 关键词 | Ocean Bottom Seismometer Hadal lander Cross-line shooting operation Seafloor position correction Monte Carlo inversion |
| ISSN号 | 0001-5733 |
| DOI | 10.6038/cjg2019M0009 |
| 英文摘要 | Due to the influence of ocean currents, Hadal landers deviate from the launch points during dives. The deviation offset and direction are difficult to be estimated. Moreover, the underwater acoustic positioning method is not suitable in the Hadal areas. Through the cross-line air-gun shooting operation carrying out on the sea surface, and by using the accurate position and timing information of each air-gun shot, as well as the arrival times of direct water waves recorded by the Ocean Bottom Seismometer (OBS), the seafloor positions of Hadal Landers can be measured precisely. In this method, the collected data are preprocessed and inversed for the actual landing positions of Wanquan Hadal Lander, using the Monte Carlo method combined with the least square method. The obtained position correction offsets of the three dives are 211 m, 178 m and 861 m respectively, with different deviation directions from each other. The measurement precision is +/- 20 m, which is much more accurate than the previous ones. In addition, this method determines precise locations of the three seafloor markers and provides reliable underwater reference coordinates for the future 10000 m-type unmanned or manned submersibles. |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/17962]  |
| 专题 | 南海海洋研究所_中科院边缘海地质重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya 572000, Peoples R China 2.Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Ocean & Marginal Sea Geol, Guangzhou 510301, Guangdong, Peoples R China 3.Chinese Acad Sci, Key Lab Petr Resource Res, Inst Geol & Geophys, Beijing 100029, Peoples R China 4.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qiu XueLin,Chen Han,Chen Jun,et al. Accurate measurement and inversion for the seafloor positions of Hadal landers[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2019,62(5):1744, 1754. |
| APA | Qiu XueLin,Chen Han,Chen Jun,Chen ChuanXu,Wang Yuan,&He EnYuan.(2019).Accurate measurement and inversion for the seafloor positions of Hadal landers.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,62(5),1744. |
| MLA | Qiu XueLin,et al."Accurate measurement and inversion for the seafloor positions of Hadal landers".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 62.5(2019):1744. |
入库方式： OAI收割
来源：南海海洋研究所
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