Multi-source data fusion can help to weaken the original data’s shortcomings while improving accuracy. The experimental area in this research is Taiyuan City Shanxi Province, China. Using SRTM1 DEM, ASTER GDEM V3, and AW3D30 optimal resolution of Fused DEM determined by analyzing topographic factor information entropy. Then optimally weighted coefficient with root mean square error (RMSE) as cr...

This paper aims to compare the performance of typical open global DEM datasets by using indexes elevation error, relative error and hydrologic network. Taking Fenhe River Basin China as study area, this research made quantitative comparison among four including SRTM data with 1” (SRTM1) 3” (SRTM3) resolutions, ASTER Global at 2nd version (GDEM-v2) ALOS World 3D-30 m (AW3D) data. Through process...

Nowadays, like many other fields, DEM is widely used in the field of hydraulic engineering. In our studies, we compared DEMs (SRTM, ASTER GDEM v2, and ALOS PALSAR) for area recommended construction Shurbulak water reservoir. Contours were developed all with contours a topographic map. The SRTM PALSAR closely match on map than ASTER. Vertical differences between SRTM, GDEM2, products computed ro...

El Alto Atlas Central es una de las estructuras geológicas que pertenecen al Macizo del marroquí. Presenta gran diversidad geológica y muchas características estructurales facies. Está controlada por fallas principales dirección N70 a E-O, visibles diferentes escalas ricas en numerosas vetas mineralizadas. Esta zona ha sido objeto presente trabajo, el hemos simulado imágenes los sensores Landsa...