作　　者： ; ; ; ; (朱运海）;

机构地区： 中国科学院地理科学与资源研究所资源与环境信息系统国家重点实验室

出　　处： 《遥感学报》 2008年第2期305-311,共7页

摘　　要： 在地学信息图谱思想和数字带谱体系的基础上,阐明了垂直带谱数字识别的概念和方法。通过AML语言组合ArcG IS功能模块,实现了昆仑山北侧垂直带谱的数字识别,通过评价认为其成果能够适用于山系尺度的带谱研究;探讨了M atlab软件编程实现山体360°带谱数字识别的算法;进一步分析了垂直带研究中带谱界限自动识别的前景和挑战。在对两种程序设计方法进行对比和分析的基础上,确立了山体单侧、山体360°两种垂直带谱模式的构建技术。研究表明,带谱数字识别技术能够为山地垂直带谱的构建提供可行的支持,促进地学信息图谱的进一步发展。 Geo-info Tupu methodology is a new explored direction for geography,and it's not only a way for presentation but also a method of analysis in geo-information science.Mountain altitudinal belts(MABs) are distributed at different elevations in high mountains,mainly owing to varying climatic conditions as altitude increases.The MABs is combined in various vertical 'spectra',and is the representative Geo-info Tupu because of its characteristics,but its data sources and presentation patterns are limited by the classical research methods.It is difficult to deal with altitudinal belts and to illustrating their patterns at different scales with traditional techniques.In this paper,we discuss the digitalization and visualization of the MABs with a view of fulfilling the identification of the MABs in the way of computerization.Based on the idea and system of Geo-info Tupu and digital mountain altitudinal belts,this paper discusses the digital identification method of the MABs and constructs feasible technical programmes.The data sources of the digital identification of the MABs are vegetation maps,and the products of our arithmetics would be distribution patterns of altitudinal belts.The paper provides two models of digital identification for the MABs at different geographical scales,such as the single flank pattern and the single peak pattern.We have fulfilled the digital identification of the MABs in the northern flank of the Kunlun Mountains with the arc macro language(AML),and the result responds to the structure-thinning model which has been validated by some scientific reports.The arithmetic of single flank is applicable in the long and narrow mountain system,which could provides the general information and distribution patterns of the altitudinal belts.The paper also shows our efforts in the digital identification of the MABs in 360°aspects by using Matlab programme.This method of identification provides the single peak pattern of the MABs relative to the single flank pattern.It helps us develop the object-oriented

关 键 词： 垂直带谱 数字识别 地学信息图谱 地理信息系统

领　　域： [自动化与计算机技术] [自动化与计算机技术]