南海东北部海域环境因素对海洋地震勘探作业的影响与分析
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摘要
本文通过2009年8月海上地震勘探作业的实践和所获得的数据,结合南海东北部海域所处的特殊地理位置和自然环境,就地震勘探作业过程中,对所受到的海洋的气象、浪潮,海流、渔业和船只等环境因素的干扰情况进行了统计分析。并结合以往的监测资料,分析了各类环境因素对施工作业所产生的影响程度以及不同干扰信号的来源状况,其中重点分析和量化了海流因素的影响,同时给出了避免或降低诸干扰因素影响程度的建议,为同行在该海域进行野外作业和资料采集提供参考。
This paper presents a statistical result about influence factors of marine seismic exploration,which is based on the data observed in Aug.2009.The production influence factors,such as weather,ocean current,fishing and cargo ships are caused due to the particular geographical region and the natural condition of the northeast of South China Sea.Combining formerly surveyed data,this paper gives the analysis on the impact and the source of each interfere factor,particularly in ocean current.Some advices are given in marine seismic survey on avoiding or reducing the interfere factors.It may provide the reference for field work and data collection.
This paper presents a statistical result about influence factors of marine seismic exploration,which is based on the data observed in Aug.2009.The production influence factors,such as weather,ocean current,fishing and cargo ships are caused due to the particular geographical region and the natural condition of the northeast of South China Sea.Combining formerly surveyed data,this paper gives the analysis on the impact and the source of each interfere factor,particularly in ocean current.Some advices are given in marine seismic survey on avoiding or reducing the interfere factors.It may provide the reference for field work and data collection.
引文
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[4]俞慕耕,刘金芳.南海海流系统与环流形势[J].海洋预报,1993-5,2(10):13-17.
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[6]钱永甫.海底地形对南海海流、海面高度和海温影响的数值试验[J].热带气象学报,1999,15(4):289-296.
[7]曾庆存.南海月平均流的计算[J].大气科学,1989,13(2):127-188.
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