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Forward modeling of marine DC resistivity method for a layered anisotropic earth被引量：2
《Applied Geophysics》2016年第2期279-287,417,共10页殷长春 张平 蔡晶 
financially supported by the National Hi-tech Research and Development Program of China(863 Program)(No.2012AA09A20103)
Since the ocean bottom is a sedimentary environment wherein stratification is well developed, the use of an anisotropic model is best for studying its geology. Beginning with Maxwell＇s equations for an anisotropic mo...
关键词：Electrical anisotropy Marine DC resistivity method Forward modeling Field continuation algorithm 
Accelerating f inite difference wavef ield-continuation depth migration by GPU
《Applied Geophysics》2012年第1期41-48,115,共9页刘国峰 孟小红 刘洪 
supported by the National Natural Science Foundation of China (Nos. 41104083 and 40804024); Fundamental Research Funds for the Central Universities (No, 2011YYL022)
The most popular hardware used for parallel depth migration is the PC-Cluster but its application is limited due to large space occupation and high power consumption. In this paper, we introduce a new hardware archite...
关键词：Wavefield-continuation depth migration finite difference Graphic Processing Unit EFFICIENCY 
Gravity and magnetic anomalies field characteristics in the South China Sea and its application for interpretation of igneous rocks被引量：8
《Applied Geophysics》2010年第4期295-305,399,共12页李淑玲 孟小红 郭良辉 姚长利 陈召曦 李和群 
the National 863 Projects(Nos.2006AA06Z111,2006AA06201-3,and 2006AA09A101-3);National Special Project(No.SinoProbe-01-05);Open Project of the National Key Laboratory for Geological Processes and Mineral Resources(No.GPMR0942).
Igneous rocks in the South China Sea have broad prospects for oil and gas exploration.Integrated geophysical methods are important approaches to study the distribution of igneous rocks and to determine and identify ig...
关键词：South China Sea gravity and magnetic fields reduction to the pole at low latitudes preferential continuation igneous rock distribution 
Downward and upward continuation of 2-D seismic data to eliminate ocean bottom topography's effect被引量：1
《Applied Geophysics》2010年第2期149-157,194,共10页王祥春 夏常亮 刘学伟 
sponsored by the National 973 Program of China(Grant No.2009CB219505);International Science&Technology Cooperation Program of China(Grant No.2010DFA21630)
In order to eliminate the effect of ocean bottom topography on seismic wave field,we transformed curved（x,z）coordinate system grids into rectangular（ξ,η）coordinate system grids and derived a 2-D scalar acoustic ...
关键词：wave equation CONTINUATION ocean bottom topography TRANSFORMATION 
A method for gravity anomaly separation based on preferential continuation and its application被引量：33
《Applied Geophysics》2009年第3期217-225,299,共10页Meng Xiaohong Guo Lianghui Chen Zhaox Li Shuling Shi Lei 
supported jointly by projects of the 863 Program (Grant Nos.2006AA06Z111,2006AA06A201-3,and 20060109A1002-0201-03)
Based on the preferential continuation method proposed by Pawlowski （1995）, we propose a method and procedure for gravity anomaly separation with the preferential upward continuation operator in the case that the va...
关键词：Preferential continuation GRAVITY anomaly separation continuation height 
Plane wave shot PSDM and controlled illumination techniques
《Applied Geophysics》2007年第4期255-262,共8页兴福 李宏兵 胡英 刘桂宝 陈树凯 
This project is sporspored by Fund item:the National Development and Innovation Committee Program (2005) 2372;the National High-tech R&D Program (863 Program) 2006AA06Z241 of China;Youth Innovation Fund of CNPC (Program:Prestack Imaging Integral Study for Complex near Surface)
The Pre-Stack Depth Migration （PSDM） method based on wavefield continuation is the most reliable method for imaging complex structure in the subsurface, although there are large computational costs and poorly adapti...
关键词：prestack depth migration wavefield continuation plane wave shot imaging controlled illumination 
An inverse Q-filter algorithm based on stable wavefield continuation被引量：8
《Applied Geophysics》2007年第4期263-270,共8页张显文 韩立国 张凤蛟 单刚义 
This research is sponsored by the National"973"Project(No.2007CB209603);the"863"Project(No.2006AA06Z108)
Stability is the key to inverse Q-filtering. In this paper we present a stable approach to inverse Q-filtering, based on the theory of wavefield downward continuation. It is implemented in a layered manner, assuming a...
关键词：Inverse Q-filtering wavefield continuation DISPERSION DISSIPATION 
Wavefield continuation datuming using a near surface model被引量：3
《Applied Geophysics》2007年第2期94-100,共7页Cui Xingfu Li Hongbing Hu Ying Liang Hong Qi Li 
the National Development and Innovation Committee Program (2005) 2372;the National High-tech R&D Program (863 Program) 2006AA06Z241 of China;Youth Innovation Fund of CNPC’ Prestack Imaging Integral Study for Complex near Surface.
When topography and low velocity zone differences vary greatly, conventional vertical static time shifts will cause wavefield distortion and influence wave equation seismic imaging for seismic data acquired on a compl...
关键词：Complex near surface tomography inversion wavefield continuation datum correction. 
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