One of the main obstacles is caused by various expression of depth datum for hydrographic data integration.
由于沿海各深度基准面的差异，使得海洋测绘数据综合处理存在一定的困难。
In this paper, the observed land surface height data and tidal data in the Yellow River delta foreland area are used to describe the variations in depth datum and tidal level in the area.
通过黄河三角洲前沿陆地高程的变化和验潮获得的资料，介绍了黄河三角洲前沿深度基准面的变化和潮位变化情况。
In most cases, subsequent depth measurements, such as those made during the well completion phase, are corrected to the wellhead datum that is based on drillers depth.
在大多数情况下，随后的测量(如在完井阶段所进行的测量)都被校正至基于司钻深度的井口基准面。
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