水体非均匀性对南海深水区地震成像的影响
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.
引文
1 Ruddick B.Sounding out ocean fine structure.Science,2003,301:772–773
2 Krahmann G,Brandt P,Klaeschen D,et al.Mid-depth internal wave energy off the Iberian Peninsula estimated from seismic reflection data.J Geophys Res,2008,113:C12016
3 宋海斌,Pinheiro L,王东晓,等.海洋中尺度涡与内波的地震图像.地球物理学报,2009,52:2775–2780
4 Pinheiro L M,Song H,Ruddick B,et al.Detailed 2-D imaging of the Mediterranean outflow and meddies off W Iberia from multichannel seismic data.J Mar Syst,2010,79:89–100
5 Wood W T,Holbrook W S,Sen M K,et al.Full wave form inversion of reflection seismic data for ocean temperature profiles.Geophys Res Lett,2008,35:L04608
6 宋海斌,董崇志,陈林,等.用反射地震方法研究物理海洋—地震海洋学简介.地球物理学进展,2008,23:1156–1164
7 Gonella J,Michon D.Deep internal waves measured by seismic-reflection within the Eastern Atlantic Water Mass.Cr Acad Sci II,1988,306 :781–787
8 Phillips J D,Dean D F.Multichannel Acoustic Reflection Profiling of Ocean Watermass Temperature/Salinity Interfaces.New York:Springer,1991
9 Holbrook W S,Paramo P,Pearse S,et al.Thermohaline fine structure in an oceanographic front from seismic reflection profiling.Science,2003,301:821–824
10 Nandi P,Holbrook W S,Pearse S,et al.Seismic reflection imaging of water mass boundaries in the Norwegian Sea.Geophys Res Lett,2004,31:L23311
11 Nakamura Y,Noguchi T,Tsuji T,et al.Simultaneous seismic reflection and physical oceanographic observations of oceanic fine structure in the Kuroshio extension front.Geophys Res Lett,2006,33:L23605
12 Biescas B,Sallare S V,Pelegr J L,et al.Imaging meddy fine structure using multichannel seismic reflection data.Geophys Res Lett,2008,35 :L11609
13 程旭华,齐义泉,王卫强.南海中尺度涡的季节和年际变化特征分析.热带海洋学报,2005,24:51–59
14 郭俊健,方文东,方国洪,等.基于11年高度计资料的南海表层环流时空变化.科学通报,2006,51(增刊Ⅱ):1–8
15 Ji L L,Lin M.Numerical analysis of the effect of mesoscale eddies on seismic imaging.Pure Appl Geophys,2013,170:259–270
16 Kormann J,Cobo P,Prieto A.Perfectly matched layers for modelling seismic oceanography experiments.J Sound Vib,2008,317:354 –365
17 Henrick R F,Siegmann W L,Jacobson M J.General analysis of ocean eddy effects for sound-transmission applications.J Acoust Soc Am,1977,62:860–870
18 姬莉莉,林缅.中尺度涡影响下目的层地震成像的畸变与影响因素分析.地球物理学报,2013,56:15–26
19 姬莉莉.中尺度涡对地震成像影响的数值模拟研究.博士学位论文.北京:中国科学院研究生院,2012
2 Krahmann G,Brandt P,Klaeschen D,et al.Mid-depth internal wave energy off the Iberian Peninsula estimated from seismic reflection data.J Geophys Res,2008,113:C12016
3 宋海斌,Pinheiro L,王东晓,等.海洋中尺度涡与内波的地震图像.地球物理学报,2009,52:2775–2780
4 Pinheiro L M,Song H,Ruddick B,et al.Detailed 2-D imaging of the Mediterranean outflow and meddies off W Iberia from multichannel seismic data.J Mar Syst,2010,79:89–100
5 Wood W T,Holbrook W S,Sen M K,et al.Full wave form inversion of reflection seismic data for ocean temperature profiles.Geophys Res Lett,2008,35:L04608
6 宋海斌,董崇志,陈林,等.用反射地震方法研究物理海洋—地震海洋学简介.地球物理学进展,2008,23:1156–1164
7 Gonella J,Michon D.Deep internal waves measured by seismic-reflection within the Eastern Atlantic Water Mass.Cr Acad Sci II,1988,306 :781–787
8 Phillips J D,Dean D F.Multichannel Acoustic Reflection Profiling of Ocean Watermass Temperature/Salinity Interfaces.New York:Springer,1991
9 Holbrook W S,Paramo P,Pearse S,et al.Thermohaline fine structure in an oceanographic front from seismic reflection profiling.Science,2003,301:821–824
10 Nandi P,Holbrook W S,Pearse S,et al.Seismic reflection imaging of water mass boundaries in the Norwegian Sea.Geophys Res Lett,2004,31:L23311
11 Nakamura Y,Noguchi T,Tsuji T,et al.Simultaneous seismic reflection and physical oceanographic observations of oceanic fine structure in the Kuroshio extension front.Geophys Res Lett,2006,33:L23605
12 Biescas B,Sallare S V,Pelegr J L,et al.Imaging meddy fine structure using multichannel seismic reflection data.Geophys Res Lett,2008,35 :L11609
13 程旭华,齐义泉,王卫强.南海中尺度涡的季节和年际变化特征分析.热带海洋学报,2005,24:51–59
14 郭俊健,方文东,方国洪,等.基于11年高度计资料的南海表层环流时空变化.科学通报,2006,51(增刊Ⅱ):1–8
15 Ji L L,Lin M.Numerical analysis of the effect of mesoscale eddies on seismic imaging.Pure Appl Geophys,2013,170:259–270
16 Kormann J,Cobo P,Prieto A.Perfectly matched layers for modelling seismic oceanography experiments.J Sound Vib,2008,317:354 –365
17 Henrick R F,Siegmann W L,Jacobson M J.General analysis of ocean eddy effects for sound-transmission applications.J Acoust Soc Am,1977,62:860–870
18 姬莉莉,林缅.中尺度涡影响下目的层地震成像的畸变与影响因素分析.地球物理学报,2013,56:15–26
19 姬莉莉.中尺度涡对地震成像影响的数值模拟研究.博士学位论文.北京:中国科学院研究生院,2012
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心