高分辨率格网模型在地质灾害风险普查数据坐标转换中的应用研究  

Application Research of High-resolution Grid Model in Coordinate Transformation of Geological Hazard Risk Survey Data

作　　者：胡志瑞[1,2,3] 范宏涛 马欣 黄玮 赵大江[4] 李鹏 李小琼 Hu Zhirui;Fan Hongtao;Ma Xin;Huang Wei;Zhao Dajiang;Li Peng;Li Xiaoqiong(Ningxia Survey and Monitoring Institute of Land Resources,Yinchuan 750002,China;Geohazard Emergency Center of Ningxia,Yinchuan 750002,China;Ningxia Assessment Center of Mineral Resources Reserves,Yinchuan 750002,China;Geodetic Data Processing Center of Ministry of Natural Resources,Xi’an 710054,China;Land Management and Ecological Rehabilitation Center of Ningxia,Yinchuan 750002,China)

机构地区：[1]宁夏国土资源调查监测院,宁夏银川750002 [2]宁夏地质灾害应急中心,宁夏银川750002 [3]宁夏矿产资源储量评审中心,宁夏银川750002 [4]自然资源部大地测量数据处理中心,陕西西安710054 [5]宁夏国土整治修复中心,宁夏银川750002

出　　处：《宁夏大学学报（自然科学版）》2023年第3期275-281,共7页Journal of Ningxia University(Natural Science Edition)

基　　金：宁夏重点研发计划基金资助项目(2020BEG03027);宁夏自然科学基金资助项目(2021AAC03428;2021AAC03424)。

摘　　要：以宁夏为例,通过构建3″×3″高精度、高分辨率格网模型,计算坐标转换改正量,实现地质灾害数据由1954年北京坐标系或1980年西安坐标系转换到2000年国家大地坐标系的坐标转换.基于257个点,分析1954年北京坐标系和1980年西安坐标系下坐标转换到2000年国家大地坐标系的转换精度.结果表明,转换后平面点位中误差分别为0.230,0.004 m.高分辨率格网模型可为地质灾害风险普查、数据共享等提供参考,坐标转换方法可为其他区域提供借鉴.Taking Ningxia as an example,through the construction of 3″×3″high-precision and high-resolution grid model and calculation of coordinate transformation correction,the coordinate transformation of geological disaster data from Beijing coordinate system in 1954 or Xi’an coordinate system in 1980 to national geodetic coordinate system in 2000 was realized.The accuracy of the coordinate transformation was analyzed with 257 points.The results show that the mean square errors of the plane points after transformation were 0.230 m and 0.004 m respectively.The high-resolution grid model can provide support for geological disaster risk survey and data sharing,and the coordinate transformation method can provide reference for other regions.

关 键 词：地质灾害风险普查 地质灾害数据 2000国家大地坐标系 坐标转换 格网模型 

分 类 号：P628[天文地球—地质矿产勘探] P694[天文地球—地质学]