| 国产I-4C型OBS在西南印度洋中脊的试验 |
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| 引用本文： | 阮爱国,李家彪,陈永顺,丘学林,吴振利,赵明辉,牛雄伟,王春龙,王显光.国产I-4C型OBS在西南印度洋中脊的试验[J].地球物理学报,2010,53(4):1015-1018. |
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| 作者姓名： | 阮爱国 李家彪 陈永顺 丘学林 吴振利 赵明辉 牛雄伟 王春龙 王显光 |
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| 作者单位： | 1.国家海洋局第二海洋研究所，杭州 10012;2.北京大学地球与空间科学学院，北京 00871;3.中国科学院南海海洋研究所，广州 10301 |
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| 基金项目： | 中国大洋协会十一五研究课题（DYXM-115-02-3-01）资助. |
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| 摘 要： | 介绍了在DY115-21航次第6航段西南印度洋中脊构造调查中，中国科学院地质与地球物理研究所研制的5台I-4C型海底地震仪（OBS）的试验情况.在不同的水深点（2370～3534 m）共投放OBS 6个台次，全部投放和回收成功.OBS内置电化学式和外置机械式两种上浮释放系统都成功动作，取得了船载气枪震源的地震数据.但仍存在三个主要问题：第一，上浮后的GPS应答搜寻系统无效果；第二，夜间回收时所需的灯光明亮度较差；第三，外在结构不利于海面上的姿态控制和打捞.
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| 关 键 词： | I-4C型海底地震仪 设备性能 回收率 西南印度洋中脊 |
| 收稿时间： | 2010-03-16 |
| 修稿时间： | 2010-03-30 |
The experiment of broad band I-4C type OBS in the Southwest India ridge |
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| RUAN Ai-Guo,LI Jia-Biao,CHEN Yong-Shun,QIU Hua-Lin,TUN Zhen-Li,DIAO Meng-Hui,NIU Xiong-Wei,WANG Chun-Long,WANG Xian-Guang.The experiment of broad band I-4C type OBS in the Southwest India ridge[J].Chinese Journal of Geophysics,2010,53(4):1015-1018. |
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| Authors: | RUAN Ai-Guo LI Jia-Biao CHEN Yong-Shun QIU Hua-Lin TUN Zhen-Li DIAO Meng-Hui NIU Xiong-Wei WANG Chun-Long WANG Xian-Guang |
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| Institution: | 1.Second Institute of Oceanography, SOA, Hangzhou 310012，China;2.Institute of Earth and Space Science of Beijing University, Beijing 100871，China;3.South China Sea Institute of Oceanography, Chinese Academy of Sciences, Guangzhou 510301，China |
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| Abstract: | Five I-4C type broad band ocean bottom seismometer (OBS) made by the Institute of Geology and Geophysics, CAS together with other OBSs were used in the survey of Southwest India Ridge during the sixth section of DY115-21 cruise. This paper describes in detail the experiment process of the five I-4C type broad band OBS. These five OBS were deployed 6 times in various water depth sites（2370~3534 m） and all recovered successfully. The inner electrical and chemical releasing system and the extra added mechanical releasing system both operated successfully. Seismic data of mid ridge produced by air gun array was recored. But the experiment showed this type OBS still exists some faults as follows. (1) The GPS locating and receiving system used for seeking floated OBS on sea surface was invalid; (2) The light from OBS was too weak to seek floated OBS during night; (3)The outer structure of OBS was not convenient for cathing OBS from water due to its bad floating pose. |
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| Keywords: | I-4C OBS Equipment function Recovering rate Southwest Indian Ridge |
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