Vertical accuracy assessment of ALOS World 3D - 30M Digital Elevation Model over northeastern Mindanao, Philippines
| Autor: | Meriam Makinano-Santillan, R. M. Makinano, Jojene R. Santillan |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
010504 meteorology & atmospheric sciences
biology Flood myth Mean squared error 0211 other engineering and technologies 02 engineering and technology biology.organism_classification 01 natural sciences Standard deviation Lidar Quantitative assessment Environmental science Physical geography Digital elevation model Aster (genus) Sea level 021101 geological & geomatics engineering 0105 earth and related environmental sciences Remote sensing |
| Zdroj: | IGARSS |
| DOI: | 10.1109/igarss.2016.7730400 |
| Popis: | A quantitative assessment of vertical accuracy of the recently released ALOS World 3D - 30m (AW3D30) Digital Elevation Model (DEM) over northeastern Mindanao, Philippines is presented. A comparison of DEM-derived and field measured Mean Sea Level (MSL) elevations of 274 ground control points revealed a Root Mean Square Error (RMSE) of 5.68 m, average difference of +4.36 m, and a standard deviation of 3.66 m. Under different landcover types, the AW3D30's RMSEs ranges from 4.29 m (built-up) to 6.67 m (grassland). This study hopes to contribute to a number of studies assessing AW3D, and in establishing AW3D30 as a viable alternative to existing global DEMs such as SRTM-30m and ASTER GDEM Version 2 for certain applications that requires highly accurate DEMs such as in flood modelling and hazard mapping. |
| Databáze: | OpenAIRE |
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