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应用SPOT5遥感数据更新土地利用基础图件的实验研究

李小娟1, 尹连旺2, 宫辉力1, 赵文吉1, 苏学杰1, 陆智1, 吴文升1(1.首都师范大学资源环境与GIS北京市重点实验室,北京 100037;2.包头市国土资源管理局,包头 014030)

摘 要
应用SPOT5高分辨率卫星遥感数据更新1:10000比例尺土地利用基础图件,针对实验区地形、土地利用以及DEM数据的特点,从实用出发提出了采用土地利用详查图DLG和地形图DRG对SPOT5进行正射纠正;通过人机交互分析方法提取土地利用变更信息,对于不确定的变更信息在野外进行实地调查与测量,产生正确的土地利用变更图,并对基础图件实施更新的技术路线。在包头市九原区的应用示范表明,基于SPOT5更新土地利用基础图件的精度,基本满足土地动态遥感监测技术规程,工作量适中,技术方法效率较高。
关键词
Research on Landuse Map Updating by Using SPOT5 Data

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Abstract
It was nearly 20 years ago that the landuse map was made, which is inconsistent with the facts gradually and needs to be updated to provide accurate landuse information for the rapid development of the region. Having the advantage of the high resolution and spatial view, the SPOT5 image is taken as the suitable remote sensing data for updating the landuse map. Based the experimental study in Jiu Yuan district of Baotou city, we put forward a practical technology and method to realize the 1∶10000 landuse map updating. From the view of the users, we use the landuse map (DLG) and topography (DRG) to produce orthophotoquad image, and extract the landuse changing information from the overlaid maps composed by landuse map and the SPOT5 image. The uncertain information is further investigated by field work. The experiment show that the updating technology based on the SPOT5 image is more efficiency, economical and practical than the TM image based technology which were used before.
Keywords

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