时差法在测深数据水位改正中的应用

Application of Time Difference Method in the Water Depth Data Correction

介绍了海洋测绘中水深测量的特点以及进行水位改正的原因,采用时差法进行水位改正的前提条件及改正原理,采用迭代法计算验潮站间相似系数和潮时差,求解待定点的水位改正数。通过实例应用,证明时差法水位可以在潮汐性质基本相同的海域进行广泛应用。

This paper introduces the features of the water depth of marine surveying and mapping and the reason of correction of water level. The prerequisite for correction of water level and the principle using time difference method, calculation of tidal station similarity coefficient and the tidal difference iterative method for solving fixed point, water level correction. Application of example shows that time difference method of water level can be widely used in the same basic property of tide waters .