Research Article
DEM Resolution Impact on the Estimation of the Physical Characteristics of Watersheds by Using SWAT
Table 1
Detail of DEM sourses.
| Items | LDD DEM | ASTER DEM | SRTM3 DEM |
| Distribution | LDD | ASTER | NASA/USGS | Release year | 2004 | 2009 | 2003 | Posting interval | 5 m | 30 m | 90 m | DEM accuracy (standard deviation) | 2–4 m | 7–14 m | 10 m | DEM coverage | Thailand | 83°N–83°S | 60°N–56°S |
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