基于含砾Folk三角形的底质范围分析  

Sediment Range Analysis Based on the Folk(G) Triangle

作　　者：李改肖 黄晓琛 LI Gaixiao;HUANG Xiaochen(Key Laboratory of Hydrography and Cartography of PLA,Dalian 116018,China;Department of Military Oceanography and Hydrography,Dalian Naval Academy,Dalian 116018,China)

机构地区：[1]海洋测绘工程军队重点实验室,辽宁大连116018 [2]海军大连舰艇学院军事海洋与测绘系,辽宁大连116018

出　　处：《海洋测绘》2019年第6期59-63,共5页Hydrographic Surveying and Charting

摘　　要：为解决面向航海应用的底质范围分布问题,提出了一种基于含砾Folk三角形的底质范围生成方法。该方法通过将海图底质注记转化为含砾Folk法底质类型,进而逆向利用Folk(G)三角形,将其拆解为各组分的比例,最后对海区内各组分单独插值并通过地图代数的方法整合各插值结果,生成底质的范围分布。对比实验表明其生成结果较传统的Voronio图法可更好地应用于舰船抛锚等应用场景。To solve the problem of sediment range for navigation applications,a method of sediment range generation based on Folk(G)triangle is proposed in this paper.Under the condition of sparse annotation on of digital chart,this method can utilize Folk(G)triangle reversely,disassemble it into the proportion of each component through the transformation from sediment annotation type of digital chart to Folk(G)type,separately interpolate each component in the sea area and integrate the interpolation results by map algebra to generate the range distribution of the bottom sediment.Experimental results show that the proposed method can be better applied to ship anchoring than traditional Voronio method.

关 键 词：底质范围边界 含砾Folk三角形 组分含量插值 地图代数 航海应用 

分 类 号：P208[天文地球—地图制图学与地理信息工程]