摘要
反射波是地下构造信息的主要载体,是地震成像的主要信息。反射波在经过近地表的过程中受到诸多因素的干扰,尤其是地表起伏和近地表低降速带,对其影响甚大。以正演模拟为研究手段,通过对一系列模型的数值模拟,详细分析了起伏地表、低降速带和Q值对反射波的影响。
Reflections are the main carriers of subsurface structures, and also the main information used in seismic imaging. Reflections are impaired by interferences, especially irregular topography and low velocity layer when they travel through near surface. With forward modeling, this paper studied in detail the effects of irregular surface, low velocity layer, and Q value on reflections.
出处
《勘探地球物理进展》
2007年第5期348-351,367,共5页
Progress in Exploration Geophysics
基金
复杂地表与复杂地下地震勘探关键技术研究(P05059)
关键词
起伏地表
低降速带
反射波
Q值
irregular topography
low velocity layer
reflection
Q value
