| Yazarlar (3) |
Doç. Dr. Arif Oğuz ALTUNEL
Kastamonu Üniversitesi, Türkiye |
Doç. Dr. Emre AKTÜRK
Kastamonu Üniversitesi, Türkiye |
Chukwuma John Okolie
University of Cape Town, South Africa |
| Özet |
| Technological advancements have revolutionized the production of Global digital elevation models (DEMs). Today, there is an ever-increasing availability of global DEMs for scientific applications. The 12 m TanDEM-X, 30 m TanDEM-X Edited, 30 m Copernicus, and 30 m FABDEM global DEMs, along with the 5 m Turkish national DEM were compared in this study. While the global DEMs result from interferometric synthetic aperture radar, the Turkish DEM is produced by stereo-photogrammetry. The assessment was conducted in forested and non-forested settings. The validation was done using the Ice, Cloud and Land Elevation Satellite-2 (ICESat-2) LiDAR. Generally, FABDEM emerged as the most reliable DEM, achieving the best performance in three settings (whole area RMSE: 2.93 m; forest RMSE: 3.98 m; >70 % canopy closure RMSE: 4.31 m). In contrast, the Turkish national DEM outperformed the other DEMs in two settings (non-forest RMSE: 1.54 m; <70 % canopy closure RMSE: 2.83 m). Global DEMs with improved accuracies may soon replace authoritative national DEMs for various applications. |
| Anahtar Kelimeler |
| Copernicus | FABDEM | Forest cover | ICESat-2 | TanDEM-X | Turkish national DEM |
| Makale Türü | Özgün Makale |
| Makale Alt Türü | SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale |
| Dergi Adı | Advances in Space Research |
| Dergi ISSN | 0273-1177 Wos Dergi Scopus Dergi |
| Dergi Grubu | Q1 |
| Makale Dili | İngilizce |
| Basım Tarihi | 01-2025 |
| Sayı | 1 |
| Doi Numarası | 10.1016/j.asr.2025.07.004 |
| Atıf Sayıları |
