2 documents found, page 1 of 1
Analysing the Potential of OpenStreetMap Data to Improve the Accuracy of SRTM 3...
Monteiro, Elisabete S. V.; Fonte, Cidália C.; Lima, João L. M. P. deTerrain slope and drainage networks are useful components to the basins morphometric characterization as well as to hydrologic modelling. One way to obtain the slope, drainage networks, and basins delineation is by their extraction from Digital Elevation Models (DEMs) and, therefore, their accuracy depends on the accuracy of the used DEM. Regional DEMs with high detail and accuracy are produced in many countrie...
Improving the positional accuracy of drainage networks extracted from Global Di...
Monteiro, Elisabete S. V.; Fonte, Cidália C.; Lima, João L. M. P. deDrainage networks allow the extraction of topographic parameters that are useful for basins characterization and necessary for hydrologic modelling. One way to obtain drainage networks is by their extraction from Digital Elevation Models (DEMs). However, it is common that no freely available DEMs at regional or national level exist. One way to overcome this situation is to use the available free Global Digital ...