IMHE OpenIR  > 成都山地所知识仓储(2009年以前)
DEM based research on the landform features of China
Language英语
Tang Guoan1; Liu, Aili1; Li Fayuan2; Zhou Jieyu1
2006
Source PublicationGEOINFORMATICS 2006: GEOSPATIAL INFORMATION SCIENCE
Author of SourceGong, JY ; Zhang, JX
Volume6420
Pages64201Y
meeting14th International Conference on Geoinformatics
Conference DateOCT 28-29, 2006
Conference PlaceWuhan
CountryPEOPLES R CHINA
Publication PlaceBELLINGHAM
PublisherSPIE-INT SOC OPTICAL ENGINEERING
Contribution Rank2
AbstractLandforms can be described and identified by parameterization of digital elevation model (DEM). This paper discusses the large-scale geomorphological characteristics of China based on numerical analysis of terrain parameters and develop a methodology for characterizing landforms from DEMs. The methodology is implemented as a two-step process. First, terrain variables are derived from a 1-km DEM in a given statistical unit including local relief, the earth's surface incision, elevation variance coefficient, roughness, mean slope and mean elevation. Second, every parameter regarded as a single-band image is combined into a multi-band image. Then ISODATA unsupervised classification and the Bayesian technique of Maximum Likelihood supervised classification are applied for landform classification. The resulting landforms are evaluated by the means of Stratified Sampling with respect to an existing map and the overall classification accuracy reaches to rather high value. It's shown that the derived parameters carry sufficient physiographic information and can be used for landform classification. Since the classification method integrates manifold terrain indexes, conquers the limitation of the subjective cognition, as well as a low cost, apparently it could represent an applied foreground in the classification of macroscopic relief forms. Furthermore, it exhibits significance in consummating the theory and the methodology of DEMs on digital terrain analysis.
KeywordDEM geomorphological parameter landform classification China
DOI10.1117/12.712988
ISBN978-0-8194-6529-0
ISSN0277-786X
Indexed ByEI ; CPCI
Accession numberAccession number:20070710420382
WOS IDWOS:000245104000070
Citation statistics
Document Type会议论文
Identifierhttp://ir.imde.ac.cn/handle/131551/33516
Collection成都山地所知识仓储(2009年以前)
Corresponding AuthorTang Guoan
Affiliation1.Key Laboratory of Virtual Geographic Environment, Nanjing Normal University, Ministry of Education, No. 122, Ninghai road, Nanjing, Jiangsu 210097, China;
2.Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, No.9, Block 4, Renmingnan Road, Chengdu, Sichuan 610041, China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Corresponding Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Tang Guoan,Liu, Aili,Li Fayuan,et al. DEM based research on the landform features of China[C]//Gong, JY, Zhang, JX. BELLINGHAM:SPIE-INT SOC OPTICAL ENGINEERING,2006:64201Y.
Files in This Item:
File Name/Size DocType Version Access License
李发源(第三作者):DEM based (801KB)会议论文 开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Tang Guoan]'s Articles
[Liu, Aili]'s Articles
[Li Fayuan]'s Articles
Baidu academic
Similar articles in Baidu academic
[Tang Guoan]'s Articles
[Liu, Aili]'s Articles
[Li Fayuan]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Tang Guoan]'s Articles
[Liu, Aili]'s Articles
[Li Fayuan]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 李发源(第三作者):DEM based research on the landform features of China.pdf
Format: Adobe PDF
This file does not support browsing at this time
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.