摘要
在总结前人研究地貌及地貌制图的基础上,以兰州幅(J-48)地貌图为例,探讨中国1:100万数字地貌制图的方法和技术,制定制图流程和规范。重点讨论了数字地貌制图的几个关键技术和问题,包括遥感解译与DEM辅助计算的关系、地貌与地势起伏度的关系以及地貌界限与影像显示比例尺的关系,为编制全国1:100万地貌图提供理论基础和方法。
On the basis of the summary of previous geomorphologic mapping research, J-48 was used as an example to discuss two main aspects of the 1 ： 1000 000 digital geomorphologic mapping in China： one is the mapping technology and method, the other is the mapping process and standardization. Our focus was on the digital geomorphologic mapping technology and several key issues, mainly including the relationship between remote sensing images and the assistant maps calculated from DEM, the relationship between geomorphologic types and relief amplitude, the geomorphologic borderline definition and the scale selection of ETM＋ image interpretation. Our research will provide both a theoretical basis and practical application for nationwide geomorphologic mapping of 1 ： 1 000 000 in China.
出处
《兰州大学学报（自然科学版）》
CAS
CSCD
北大核心
2009年第5期6-11,16,共7页
Journal of Lanzhou University(Natural Sciences)
基金
国家自然科学基金项目(40401007
40471016)
教育部重点项目(10425)
国家科技基础数据平台项目(2004DKA20180-08)
关键词
遥感
地理信息系统
地貌制图
remote sensing
geographic information system
geomorphologic mapping
