滨海型宽频带海底地震仪的技术特点及其数据质量分析-华南地震

文章信息/Info

Title:: Technical Characteristics and Data Quality Analysis of Coastal Type Wide-band Ocean Bottom Seismometer

作者:: 刘思青1; 陈洁2; 曹骏2; 王先庆1; 袁松湧3; 1. 广州海洋地质调查局，广州 510760；2. 珠海市泰德企业有限公司，广东珠海 519080；3. 中国地震局地球物理研究所，北京 100081

Author(s):: LIU Siqing1; CHEN Jie2; CAO Jun2; WANG Xianqing1; YUAN Songyong3; 1. Guangzhou Marine Geological Survey，Guangzhou 510760，China；2. Zhuhai Taide Enterprises Limited，Zhuhai 519080，China；3. Institude of Geophysics，China Earthquake Administration，Beijing 100081，China

Keywords:: Coastal type; Wide-band ocean bottom seismometer（OBS）; Instrument design; Seismic observation

摘要:: 我国海洋地震监测研究起步较晚，深入开展相关的技术方法研究势在必行。通过对我国自主研制的滨海型宽频带海底地震仪的工作原理、总体设计以及野外的布放回收过程进行系统介绍，并对其在我国黄渤海海域的实践过程进行数据质量分析，结果显示：滨海型宽频带海底地震仪的总体设计十分合理，不仅有效降低了渔业活动、海流、生物腐蚀等外部因素对仪器的影响，又可满足低功耗供电和高质量数据记录，也可以有效克服内部时钟漂移的影响；与常规利用声通讯释放技术的回收方式不同，地震仪回收作业采用潜水员水下作业的方式，有效减少了系统的成本，适合滨海海洋地震勘探；与陆地台站大连台对比分析，滨海型宽频带海底地震仪亦可记录到清晰可靠的P波、S波信号，数据质量较高。

Abstract:: It is imperative to carry out marine seismic observation research，which started late in China. Based on the systematic introduction of the working principle，overall design，field release and recovery process of the coastal wide-band ocean bottom seismometer（OBS）that is independently developed in China and quality analysis of the data obtained in Huanghai and Bohai Sea, the following understandings are obtained：the overall design of the coastal wide-band OBS is quite reasonable, which not only effectively reduces the influence of external factors, such as fishery activities，ocean currents and biological corrosion on the instrument，but also meets the requirements of low power supply and high quality data recording, and can effectively overcome the influence of internal clock drift; different from the conventional recovery method using acoustic communication release technology，the coastal type OBS is recovered by divers，which effectively reduces the cost and is suitable for coastal marine seismic exploration; compared with Dalian station, the coastal type OBS can also record reliable P-wave and S-wave signals with high data quality.

备注/Memo:: 收稿日期：2019-10-22基金项目：国家重大科学仪器设备开发专项“海洋地磁场矢量测量仪开发与应用”（2014YQ100817）；广东省基础与应用基础研究基金“白云凹陷陆架坡折迁移前后的沉积响应及其对水合物成藏的影响”（2020A1515011172）；国家重点研发计划项目“天然气水合物高分辨率三维地震探测技术”（2017YFC0307400）作者简介：刘思青（1990- ），女，博士，工程师，主要从事海洋地质与深部构造探测与研究。E-mail：lsq13140307@126.com.通信作者：陈洁（1985- ），男，本科，工程师，主要从事地震仪器的研发制造。E-mail：cj@tai-de.com.