高精度瞬时水深模型的乘潮进港分析

针对海图上航道水深数据稀少、进行乘潮进港分析不准确的不足,本文提出了基于高精度瞬时水深模型的乘潮进港分析方法。在海图水深的基础上,融入高密度多波束水深数据,共建高精度静态水深模型,并进一步精化水位预报,形成高精度的瞬时水深模型;然后,采用分段测试的方法,分析航线可行性,并求取乘潮进港时间窗口。实验结果表明基于高精度的瞬时水深模型能够获得更准确的乘潮进港出发时间窗口,可提高航道通航能力。

An analysis for entering a port considering tide based on high-precise instantaneous depth model

Aiming at the thin shortage of depths data of a sea route in a chart and inaccurate analysis for entering a port with tide,an method for analyzing entering a port considering tide based on a high-precise instantaneous depth model was proposed in the paper.The high-dense soundings derived of multi-beam surveying were incorporated into a chart for constructing a high-precise depth model,and accurate predicted water levels were further incorporated for forming a high-precision instantaneous depth model.Then a sea route was partitioned and its navigability was tested based on the high-precise instantaneous depth model.Experimental results demonstratd that the high-precision instantaneous depth model could result in a more accurate time window for analyzing the navigability of the sea route,and improve the capacity of the sea route.