Assessing the Accuracy of SRTM Dem and Aster Gdem Datasets for the Coastal Zone of Shandong Province, Eastern China
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....
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Sciendo
2015-09-01
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| Series: | Polish Maritime Research |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/pomr-2015-0026 |
| _version_ | 1819116167920353280 |
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| author | Luana Shaopeng Hou Xiyong Wang Yetang |
| author_facet | Luana Shaopeng Hou Xiyong Wang Yetang |
| author_sort | Luana Shaopeng |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-12-22T05:12:47Z |
| format | Article |
| id | doaj.art-56a754d10f754c22ada91ac4690f856e |
| institution | Directory Open Access Journal |
| issn | 2083-7429 |
| language | English |
| last_indexed | 2024-12-22T05:12:47Z |
| publishDate | 2015-09-01 |
| publisher | Sciendo |
| record_format | Article |
| series | Polish Maritime Research |
| spelling | doaj.art-56a754d10f754c22ada91ac4690f856e2022-12-21T18:37:56ZengSciendoPolish Maritime Research2083-74292015-09-0122s1152010.1515/pomr-2015-0026pomr-2015-0026Assessing the Accuracy of SRTM Dem and Aster Gdem Datasets for the Coastal Zone of Shandong Province, Eastern ChinaLuana Shaopeng0Hou Xiyong1Wang Yetang2University of Chinese Academy of Sciences, Beijing, ChinaYantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, ChinaCollege of Population, Resources and Environment, Shandong Normal University, Jinan, ChinaThis 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.https://doi.org/10.1515/pomr-2015-0026elevation errorssrtm demaster dem |
| spellingShingle | Luana Shaopeng Hou Xiyong Wang Yetang Assessing the Accuracy of SRTM Dem and Aster Gdem Datasets for the Coastal Zone of Shandong Province, Eastern China Polish Maritime Research elevation errors srtm dem aster dem |
| title | Assessing the Accuracy of SRTM Dem and Aster Gdem Datasets for the Coastal Zone of Shandong Province, Eastern China |
| title_full | Assessing the Accuracy of SRTM Dem and Aster Gdem Datasets for the Coastal Zone of Shandong Province, Eastern China |
| title_fullStr | Assessing the Accuracy of SRTM Dem and Aster Gdem Datasets for the Coastal Zone of Shandong Province, Eastern China |
| title_full_unstemmed | Assessing the Accuracy of SRTM Dem and Aster Gdem Datasets for the Coastal Zone of Shandong Province, Eastern China |
| title_short | Assessing the Accuracy of SRTM Dem and Aster Gdem Datasets for the Coastal Zone of Shandong Province, Eastern China |
| title_sort | assessing the accuracy of srtm dem and aster gdem datasets for the coastal zone of shandong province eastern china |
| topic | elevation errors srtm dem aster dem |
| url | https://doi.org/10.1515/pomr-2015-0026 |
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