| ASTER-GDEM与SRTM3数据质量精度对比分析 |
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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. |
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| 作者姓名： | 郭笑怡 张洪岩 张正祥 侯光雷 赵建军 |
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| 作者单位： | (东北师范大学城市与环境科学学院,吉林 长春130024) |
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| 基金项目： | 国家973项目(2009CB426305); 东北师范大学“十五”科技创新平台建设计划项目(106111065202)资助 |
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| 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。
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| 关 键 词： | ASTER-GDEM SRTM3 精度 |
| 收稿时间： | 2010-12-14 |
Comparative Analysis of the Quality and Accuracy between ASTER-GDEM and SRTM3 |
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| 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[J].Remote Sensing Technology and Application,2011,26(3):334-339. |
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| Authors: | GUO Xiao-yi ZHANG Hong-yan ZHANG Zheng-xiang HOU Guang-lei ZHAO Jian-jun |
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| Affiliation: | (Northeast Normal University School of Urban and Environment Sciences,Changchun 130024,China) |
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| 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 qualita... |
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| Keywords: | ASTER-GDEM SRTM3 Accuracy |
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