| 基于语义和剖面特征匹配的地形粗糙度模型评价 |
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| 引用本文： | 陶旸,汤国安,王春,杨昕.基于语义和剖面特征匹配的地形粗糙度模型评价[J].地理研究,2011,30(6):1066-1076. |
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| 作者姓名： | 陶旸 汤国安 王春 杨昕 |
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| 作者单位： | 1. 南京师范大学虚拟地理环境教育部重点实验室,南京210046;
2. 滁州学院国土信息工程系,滁州239000 |
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| 基金项目： | 国家自然科学基金项目(40930531、41001301、40901240); 江苏省普通高校研究生科研创新计划项目(CX09B_299Z) |
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| 摘 要： | 针对地形粗糙度模型种类繁多、概念相近和模型混杂,以及难于针对具体研究样区恰当选取等问题,提出一种基于语义规则判别和剖面特征匹配的粗糙度模型评价算法.通过对面积比率模型、矢量粗糙度模型、表面粗糙度因子、基于标准差计算的统计模型等四类八种常用地形粗糙度模型的测试表明,该算法对粗糙度剖面的转折特征和局部地形变异特征敏感,能够...
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| 关 键 词： | DEM 地形粗糙度 语义规则 剖面特征匹配 相似性 |
| 收稿时间： | 2010-07-04 |
Assessment on surface roughness models based on semantics and profile characteristics matching |
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| TAO Yang,TANG Guo-an,WANG Chun,YANG Xin.Assessment on surface roughness models based on semantics and profile characteristics matching[J].Geographical Research,2011,30(6):1066-1076. |
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| Authors: | TAO Yang TANG Guo-an WANG Chun YANG Xin |
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| Affiliation: | 1. Key Laboratory of Virtual Geographic Environment, Ministry of Education, Nanjing Normal University, Nanjing 210046, China;
2. Land Information Engineering Department, Chuzhou University, Chuzhou 239000, Anhui, China |
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| Abstract: | As an important terrain factor,surface roughness calculated by digital elevation models(DEM) is directly used in geoscience models such as soil erosion models,surface photo-thermal simulation and so on.But there has been no generally accepted definition of surface roughness until now.Various types and similar concepts of surface roughness may cause difficulty for selecting a suitable surface roughness model.In this paper,we present a new algorithm for assessing surface roughness models based on semantics an... |
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| Keywords: | DEM surface roughness semantics profile characteristics matching comparability |
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