| VERTICAL ACCURACY ASSESSMENT OF COPERNICUS DEM (CASE STUDY: TEHRAN AND JAM CITIES) |
| Paper ID : 1086-GEOSPATIAL (R6) |
| Authors: |
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Mohammad Amin Ghannadi *1, Saeedeh Alebooye2, Moein Izadi3, Ali Ghanadi4 1Department of Geoscience Engineering, Arak University of Technology, Arak, Iran 2School of Surveying and Geospatial Engineering, College of Engineering, University of Tehran, Tehran, Iran 3Department of Geological and Environmental Sciences, Western Michigan University, Kalamazoo, Michigan, USA 4Department of Civil Engineering, Faculty of Technology and Engineering, Central Tehran Branch, Islamic Azad University, Tehran, Iran |
| Abstract: |
| Digital Elevation Models (DEMs) are widely utilized in a variety of fields, including, hydrology, geomorphology, and geoscience. The dataset is now openly and freely available to the public, with access permissions for data at 30- and 90-meter resolution having been expanded. The Copernicus DEM is a Digital Surface Model (DSM) that depicts the Earth's surface, which includes structures, infrastructure, and vegetation. This DEM is based on the WorldDEM DSM, which has been altered. The Copernicus DEM's vertical accuracy is assessed in this paper. The study area is in Iran, north of Tehran and west of Jam. The Copernicus DEM is compared to the Shuttle Radar Topography Mission (SRTM) in terms of vertical accuracy. The results of the experiments reveal that the Copernicus DEM is more accurate than the SRTM. In the Tehran and Jam examples, the root mean square error (RMSE) for Copernicus DEM (30 m) is 5.72 and 2.19 meters, respectively. Also, this value for SRTM is 6.10 and 3.95 respectively. |
| Keywords: |
| Copernicus, DEM, DSM, Accuracy Assessment, SRTM, WorldDEM |
| Status : Paper Accepted (Poster Presentation) |
