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遥感技术与应用  2011, Vol. 26 Issue (3): 334-339    DOI: 10.11873/j.issn.1004-0323.2011.3.334
图像与数据处理     
ASTER-GDEM与SRTM3数据质量精度对比分析
郭笑怡,张洪岩,张正祥,侯光雷,赵建军
(东北师范大学城市与环境科学学院,吉林 长春130024)
Comparative Analysis of the Quality and Accuracy between ASTER-GDEM and SRTM3
GUO Xiao-yi,ZHANG Hong-yan,ZHANG Zheng-xiang,HOU Guang-lei,ZHAO Jian-jun
(Northeast Normal University School of Urban and Environment Sciences,Changchun 130024,China)
 全文: PDF(1663 KB)  
摘要:

ASTER-GDEM是最新的全球数字高程模型,具有较高的分辨率;SRTM3是目前研究人员广泛应用的地形数据。结合实测数据、矢量化地形图,从高程精度、位置精度和坡度因子3方面对比分析两种数据精度。结果表明:ASTER-GDEM数据高程精度低于SRTM3数据,而水平位置精度较高,二者各级坡度百分率近似,与国家1∶5万数字地形图生成的DEM差异较大。

关键词: ASTER-GDEMSRTM3精度    
Abstract:

ASTER-GDEM was a kind of data for global DEM and jointly developed by Japan and America.It was up to date with high resolution; SRTM3 was one kind of terrain data widely used by researchers.This paper describes assessment carried out over the ASTER\|GDEM and SRTM3 data.The study area was located in Jilin,China.First,the data parameters were analyzed in the ASTER-GDEM and SRTM3.Then the vertical accuracy of the data was assessed by using GPS points data.Comparison between ASTER\|GDEM and SRTM3 allowed a qualitative assessment of the horizontal component of the error,while statistical measures were used to estimate their accuracy.At last,slope percentages were calculated for different data.In the case,the accuracy of ASTER-GDEM was lower than SRTM3 at elevation,but higher at horizontal position,at the same time,it was rather different from the slope percentages of DEM made by digitize terrain map.The following conclusions were drawn from this study:ASTER-GDEM was appropriate for mountainous regions,and SRTM3 was suitable in plain area.

Key words: ASTER-GDEM    SRTM3    Accuracy
收稿日期: 2010-12-14 出版日期: 2013-01-23
:  TP 79  
基金资助:

国家973项目(2009CB426305),东北师范大学“十一五”科技创新平台建设计划项目(106111065202)资助。

通讯作者: 张洪岩(1963-),男,吉林安图人,博士,教授,博士生导师,主要从事地理信息系统和环境遥感研究。Email:zhy@nenu.edu.cn。     E-mail: guoxy914@nenu.edu.cn
作者简介: 郭笑怡(1985-),男,吉林省吉林市人,硕士研究生,主要从事GIS和遥感应用方面的研究。Email:guoxy914@nenu.edu.cn。
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引用本文:

郭笑怡,张洪岩,张正祥,侯光雷,赵建军. ASTER-GDEM与SRTM3数据质量精度对比分析[J]. 遥感技术与应用, 2011, 26(3): 334-339.

GUO Xiao-yi,ZHANG Hong-yan,ZHANG Zheng-xiang,HOU Guang-lei,ZHAO Jian-jun. Comparative Analysis of the Quality and Accuracy between ASTER-GDEM and SRTM3. Remote Sensing Technology and Application, 2011, 26(3): 334-339.

链接本文:

http://www.rsta.ac.cn/CN/10.11873/j.issn.1004-0323.2011.3.334        http://www.rsta.ac.cn/CN/Y2011/V26/I3/334

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