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约在 0.04 ~ 0.30 m 之间。(2)针对三峡出库流量日调节模式驱动的重力波,其在坝前生成时的振幅与一
个日周期内泄水量差成正比,与库区背景水位成反比。结合实测数据拟合结果,文中给出了估算公式,即
-7
A = ΔW × 10 ,由公式所得计算结果与实测结果对比符合较好。(3)日调节重力波向库区上游传
2.34 ⋅ η - 260.24
播过程中,其振幅会出现先降低后上升的现象,从下降到上升的转换位置与库区背景水位相关,一
般发生在距大坝 190 ~ 250 km 范围内。重力波的相位沿程逐渐增加,代表重力波波速的相位斜率与库
区水位相关,距离大坝较远的库区上游波速显著降低。
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