基于EPS的水下地形图等高线错误检查  

Error Checking of the Contour of Submarine Topographic Maps Based on EPS

作　　者：高尚 李聪 GAO Shang;LI Cong(Hydrological and Water Resources Survey Bureau of the Lower Reaches of Changjang,Hydrological Bureau of Changjiang Water Resources Commission,Nanjing,Jiangsu Province,210011 China)

机构地区：[1]长江水利委员会水文局长江下游水文水资源勘测局,江苏南京210011

出　　处：《科技资讯》2023年第24期8-12,20,共6页Science & Technology Information

摘　　要：研究侧重于水下地形图等高线数据的错误检查与改进方法。现有方法存在诸多问题,例如:数据错误、矛盾与缺失等,影响地图数据的精确性和可靠性。研究中尝试了多种方法,发现EPS软件在检查和修复等高线数据方面表现出色。EPS平台提供了多项检查模块,如Z值合法性、等高线矛盾、高程点匹配检查等,有效辨别并纠正了多种错误。经验证,该方法检测准确率超过95%,较其他软件具有更高可靠性。这些发现预示着该方法对提高水下地形图等高线数据的准确性具有潜在价值,将为地图制作和应用领域提供更可靠的数据支持。The study focuses on the error checking and improvement methods of the contour data of underwater topographic maps.Current methods face various issues such as data errors,inconsistencies and omissions,and they impact the precision and reliability of map data.The study tries multiple methods and finds that EPS software excels at examining and rectifying contour data.The EPS platform offers multiple check modules like Z-value legitimacy,contour inconsistencies and elevation point matching checks,which effectively identify and correct various errors.It is verified that this method has an detection accuracy rate of more than 95%and is more reliable than other software.These findings indicate this method has potential value in enhancing the accuracy of the contour data of underwater topographic maps,and it will provide more reliable data support for the production and application fields of maps.

关 键 词：水下地形图 等高线错误 EPS软件 数据检查 

分 类 号：P284[天文地球—地图制图学与地理信息工程]