县级“三调”坡度图快速局部更新方法讨论  

Discussion on the Method of Rapid Updating of County Slope Map in the Third Land Survey

作　　者：熊华江 张艳红 XIONG Huajiang;ZHANG Yanhong(Jiangxi Institute of Natural Resources Surveying,Mapping and Monitoring,Nanchang 330002,China)

机构地区：[1]江西省自然资源测绘与监测院,江西南昌330002

出　　处：《江西测绘》2024年第4期37-40,共4页JIANGXI CEHUI

摘　　要：县级“三调”坡度图快速局部更新后需与“三调”坡度图融合,并与“三调”变更数据库和坡度数据统一到同一个坐标系统。这部分新增耕地点散面广,新增时间不一,如何及时快速准确地将新增耕地的坡度图变更至“三调”坡度图数据中是论文重点研究的内容。论文针对县级“三调”坡度图快速局部更新的难点问题,探索更新方法,并对今后坡度图快速局部更新工作提出建议。The slope map within the county area needs to be integrated with the slope map in the third land survey after rapid local update,and the integrated slope map database should be in the same coordinate system as the slope map database.The new cultivated land involved in this part of the slope map to be updated is widely distributed and involves a large number of areas,and the time of the addition of cultivated land is different.Timely,quickly and accurately changing the slope map of the new cultivated land and integrating it into the slope map data of the third land survey is the focus of this paper.Aiming at the difficulties in the rapid local updating of slope map in the county area,this paper explores the reasons and updating methods,and puts forward some suggestions for future rapid local updating of slope maps.

关 键 词：坡度图 局部更新 坡度级别 

分 类 号：P208[天文地球—地图制图学与地理信息工程]