海图深度基准面在航海中的作用分析  

Analysis on the Effect of the Chart Depth Datum in Navigation

作　　者：吴明朋 WU Mingpeng(th Bureau Directly Under China Coast Guard,Qingdao Shandong 266000,China)

机构地区：[1]中国海警局直属第六局,山东青岛266000

出　　处：《交通节能与环保》2020年第4期41-44,共4页Transport Energy Conservation & Environmental Protection

摘　　要：海图深度基准面作为海图水深的起算面,也是将瞬时水深归算到稳定图载水深的起算面,在航海中具有非常重要的作用。本文首先介绍海图深度基准面的概念、意义以及我国《海道测量规范》中深度基准面的确定方法。进而针对海图深度基准面在计算实际水深、船舶航线设计、过浅滩或架空障碍物、测深辨位以及求取实际山高或灯高中的作用展开论述,并在此基础上分析深度基准面的发展方向及海洋无缝垂直体系在航海中的作用。As the starting point of the nautical chart depth,the depth datum is also the initial point of calculating the instantaneous water depth into stable chart water depth,which is very essential in navigation.This paper initiates the concept and significance of the chart depth datum and the determination method of it in the specifications for hydrographic survey of China.Furthermore,this paper discusses the applications of depth datum in calculating the actual water depth,instructing mariners to design routes,assisting ships to cross the shoal or overhead obstacles,sounding positioning and obtaining the actual height of mountains and beacons.Besides,the development direction of the depth datum and the role of marine seamless vertical system in navigation are analyzed.

关 键 词：港航工程 航海应用 深度基准面 海图 水深 无缝垂直体系 

分 类 号：U612.26[交通运输工程—船舶及航道工程]