日晷投影和等距离正圆柱投影在极区航海图编制及航海应用中的比较  

Comparison of Sundial Projection and Equidistant Cylindrical Projection in Compilation of Polar Nautical Charts and Applications of Navigation

作　　者：彭认灿[1,2] 董箭[1,2] 王芳 刘国辉 戴佳良 PENG Rencan;DONG Jian;WANG Fang;LIU Guohui;DAI Jialiang(Department of Military Oceanography and Hydrography,Dalian Naval Academy,Dalian 116018,China;Key Laboratory of Hydrographic Surveying and Mapping of People’s Liberation Army,Dalian Naval Academy,Dalian 116018,China;Troops 91001,Beijing 100161,China;Chart Information Center,Tianjin 300450,China)

机构地区：[1]海军大连舰艇学院军事海洋与测绘系,辽宁大连116018 [2]海军大连舰艇学院海洋测绘工程军队重点实验室,辽宁大连116018 [3]部队,北京100161 [4]海图信息中心,天津300450

出　　处：《测绘地理信息》2022年第1期19-23,共5页Journal of Geomatics

基　　金：国家自然科学基金(42071439)。

摘　　要：北极地区航海图编制是北极航道开通之前最重要的航海保障准备工作之一。在分析国内相关研究的基础上,针对日晷投影和等距离正圆柱投影在极区航海图编制及航海应用中的适用性问题,从这两种投影的性质与特点、投影变形的大小与分布以及图幅设计计算、图上定位与量读、图上等角航线与大圆航线绘制和邻幅拼接的难易等角度进行分析与比较。研究结果表明,与日晷投影相比,等距离正圆柱投影更适合用作极区航海图的投影。The compilation of the Arctic nautical chart is one of the most important preparations in nautical support before the opening of the Arctic waterway Based on the analysis of domestic related research,we conduct the analysis and comparison in response of the applicability of sundial projection and equidistant cylindrical projection in the compilation of polar nautical charts and the applications of navigation from the following perspectives:their nature and characteristics,the size and distribution of the projection deformation,the design and calculation of the chart frame,the positioning and reading of the chart,the equiangular route and the great circle route drawing on the chart,the difficulty of adjacent chart splicing of these two projections,etc The research results show that the equidistant cylindrical projection is more suitable for the projection of the polar nautical chart than sundial projection.

关 键 词：北极地区 航海图编制 航海应用 日晷投影 等距离正圆柱投影 适用性 

分 类 号：P282[天文地球—地图制图学与地理信息工程]