浙江省支援青川县灾后恢复重建县城(乡镇)1∶500数字地形图测绘项目技术设计方案浙江省测绘局二○○八年七月目录1青川县概况...............................................................................................................11.1青川县地理概况...........................................................................................................11.2青川5.12地震受灾情况..............................................................................................21.3测区简介.......................................................................................................................31.4测区范围和工作量.......................................................................................................41.4.1测区范围与分布.................................................................................................41.4.2需要完成的工作量.............................................................................................41.5项目分阶段实施计划...................................................................................................42实施技术方法...........................................................................................................42.1已有资料分析利用.......................................................................................................52.2图幅分幅与测量基准...................................................................................................52.2.1图幅分幅、图幅编号及图名.............................................................................52.2.2测量基准.............................................................................................................52.3测量精度与方法...........................................................................................................62.4采用的主要技术...........................................................................................................62.4.1GPS测量技术....................................................................................................62.4.2数字测绘技术.....................................................................................................63引用、依据技术标准.................................................................................................74生产硬件、软件配置.................................................................................................84.1生产硬件投入...............................................................................................................84.2生产软件投入...............................................................................................................85控制测量...................................................................................................................95.1平面控制测量...............................................................................................................95.1.1控制网布设方案.................................................................................................95.1.2坐标系统选择.....................................................................................................95.1.3基础控制网成果提供.........................................................................................95.1.4GPS四等网与GPS一级网设计.........................................................
