| ASSESSING THE ACCURACY OF SRTM DEM AND ASTER GDEM DATASETS FOR THE COASTAL ZONE OF SHANDONG PROVINCE, EASTERN CHINA | |
Luan, SP; Hou, XY ; Wang, YT; Luan, SP (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai, Peoples R China.
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| 发表期刊 | POLISH MARITIME RESEARCH
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| ISSN | 1233-2585 |
| 2015 | |
| 卷号 | 22页码:15-20 |
| 关键词 | Elevation Errors Srtm Dem Aster Dem |
| DOI | 10.1515/pomr-2015-0026 |
| 产权排序 | [Hou, Xiyong] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai, Peoples R China; [Wang, Yetang] Shandong Normal Univ, Coll Populat Resources & Environm, Jinan, Peoples R China; [Luan, Shaopeng] Univ Chinese Acad Sci, Beijing, Peoples R China; [Luan, Shaopeng] Geomat Ctr Yantai City, Yantai, Peoples R China |
| 作者部门 | 海岸带信息集成与综合管理实验室 |
| 英文摘要 | This study assessed the performance of recently released 3 arc second SRTM DEM version 4.1 by CSI-CGIAR and 1 arc second ASTER GDEM version 1 and version 2 by METI-NASA in comparison with ground control points from 1:50000 digital line graphs for the coastal zone of Shandong Province, Easter China. The vertical accuracy of SRTM DEM is 13.74 m root mean square error (RMSE), and GDEM version 1 reaches 24.11 m RMSE. Version 2 of ASTER GDEM shows better performance than version 1 and SRTM DEM with a RMSE of 12.12 m. A strong correlation of the magnitude of elevation error with slope and elevation is identified, with lager error magnitudes in the steeper slopes and higher elevations. Taking into account slope and elevation has the potential to considerably improve the accuracy of the SRTM DEM and GDEM version 1 products. However, this improvement for GDEM version 2 can be negligible due to their limited explanatory power for the DEM elevation errors.; This study assessed the performance of recently released 3 arc second SRTM DEM version 4.1 by CSI-CGIAR and 1 arc second ASTER GDEM version 1 and version 2 by METI-NASA in comparison with ground control points from 1:50000 digital line graphs for the coastal zone of Shandong Province, Easter China. The vertical accuracy of SRTM DEM is 13.74 m root mean square error (RMSE), and GDEM version 1 reaches 24.11 m RMSE. Version 2 of ASTER GDEM shows better performance than version 1 and SRTM DEM with a RMSE of 12.12 m. A strong correlation of the magnitude of elevation error with slope and elevation is identified, with lager error magnitudes in the steeper slopes and higher elevations. Taking into account slope and elevation has the potential to considerably improve the accuracy of the SRTM DEM and GDEM version 1 products. However, this improvement for GDEM version 2 can be negligible due to their limited explanatory power for the DEM elevation errors. |
| 文章类型 | Article |
| 收录类别 | SCI |
| 语种 | 英语 |
| 关键词[WOS] | DIGITAL ELEVATION MODELS ; VALIDATION ; TOPOGRAPHY ; IMPACT ; RADAR ; FIELD |
| 研究领域[WOS] | Engineering |
| WOS记录号 | WOS:000362220200003 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/9756 |
| 专题 | 中国科学院海岸带环境过程与生态修复重点实验室_海岸带信息集成与战略规划研究中心 中国科学院海岸带环境过程与生态修复重点实验室 |
| 通讯作者 | Luan, SP (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Luan, SP,Hou, XY,Wang, YT,et al. ASSESSING THE ACCURACY OF SRTM DEM AND ASTER GDEM DATASETS FOR THE COASTAL ZONE OF SHANDONG PROVINCE, EASTERN CHINA[J]. POLISH MARITIME RESEARCH,2015,22:15-20. |
| APA | Luan, SP,Hou, XY,Wang, YT,&Luan, SP .(2015).ASSESSING THE ACCURACY OF SRTM DEM AND ASTER GDEM DATASETS FOR THE COASTAL ZONE OF SHANDONG PROVINCE, EASTERN CHINA.POLISH MARITIME RESEARCH,22,15-20. |
| MLA | Luan, SP,et al."ASSESSING THE ACCURACY OF SRTM DEM AND ASTER GDEM DATASETS FOR THE COASTAL ZONE OF SHANDONG PROVINCE, EASTERN CHINA".POLISH MARITIME RESEARCH 22(2015):15-20. |
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