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水体非均匀性对南海深水区地震成像的影响

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摘要 考察了南海深水区水体非均匀性对地震成像的影响.将波动方程方法推广到非均匀运动水体,计算了地震波场瞬时快照,结果表明水体非均匀性影响了地震波的传播时间,在零偏移距处该影响最大可达20 ms.特别地,中尺度涡会使目标地层成像发生畸变,而水体内温度变化是造成这种畸变的根本原因.最后,给出了评估非均匀水体对地震成像影响的方法.
出处 《科学通报》 EI CAS CSCD 北大核心 2013年第30期3100-3106,共7页 Chinese Science Bulletin
基金 国家自然科学基金(41074058 41074097 41210005) 国家重点基础研究发展计划(2009CB219405-1)资助
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