石景山区土地利用数据库的设计与实现

Shijingshan District Land Use Database Desiqn and Implementaion

"数字国土"工程作为我国国家空间数据基础设施的一部分得到了长足的发展。本文对北京市石景山区土地利用数据库建设的过程进行系统的描述。基于ArcGIS平台、ArcSDE引擎,利用Geodatabase模型,结合GIS和RS技术,设计了土地利用分层及编码规则,最后将土地调查成果整合入库。实验表明,本文的土地利用数据库建设方法可以实现海量数据的高效入库,为基础地理信息数据的共享奠定了基础。

Aerial triangulation, which is crucial part in the photogrammetry process, to calculate the plane coor- dinates and elevation of the tie points and the exterior orientation parameters of the photo based on some amount control points. With the development of navigating and positioning technique, highly accurate POS system is equipped on the aerial aircraft to record the position and attitude of the camera at the shooting moment, which is used to support the aerial triangulation. In this paper, it used the two flight levels ADS40 imagery data, POS data and some ground control data to perform aerial triangulation based on ORIMA software. And finally the accuracy of the aerial triangulation with two flight levels imagery data was compared with that of the solo flight level imagery data.