提出一种利用折射初至反演低速带的结构来进行长波长静校正的有效方法。
Authors put forward an effective method which achieves long-wavelength static correction by deriving the low-velocity layer structure from refraction first breaks.
在中国西部地区，地表起伏剧烈，表层低速带横向速度变化较大，静校正问题严重。
Static correction problem is serious in areas of western China with acute topographic undulation and sharp lateral variations of LVZ velocity.
在地形起伏剧烈和表层低速带速度横向变化较大的地区，做好野外静校正是取得高质量叠加剖面的重要一步，而确定表层低速带速度是做好静校正的关键。
Field statics is one of vital processing for achieving high quality stacked sections in areas with drastic topographic relief and sharp lateral variations of LVZ velocity.
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