海陆连片高精度重力测量中的潮位改正方法

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近两年来,在环渤海的各个油田,开展了大面积海陆连片高精度重力测量,取得了很好的地质效果,在这些地区的油气勘探、开发工作中发挥了作用。海陆连片高精度重力测量的海上测量部分需要高精度的潮位改正。所谓潮位改正,就是潮高值(变量)与深度基准面的高程值(常数)相加。其目的是为进行重力布格改正提供海面高程。潮高与瞬时海面高程和深度基准面高程的关系见附图。
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