Modelo digital de elevação hidrologicamente consistente para a bacia do rio Doce : elaboração e análise

Content Provider	Semantic Scholar
Author	Cardoso, Fernando Angelo Couto Paula, Deborah Luiza Poletto De Mor, Roberto Monte Maia, James Lacerda Vieira, Eliane Maria
Copyright Year	2017
Abstract	preparation of the Conditioning Hydrografic Digital Elevation Model (CHDEM), for the delineation of areas of permanent preservation on top of hills. For the delineation of the watershed and the development of the model was used the software ArcGIS and as database the Global Digital Elevation Map (GDEM) of the Advanced Spaceborne Thermal Emission and Reflection radiometer (ASTER) including the Hydrography provided by Agência Nacional de Águas (ANA). It was made a color composite Landsat RGB-345 satellite, for the verification of the results and correction of faults detected during the execution of the work. The results showed the need for models with satisfactory quality to correct development of the hydrological model generation methodology, as there was variation in the flow direction with the change of the DEM for CHDEM. There was also variation in altitude values of the two models, while the maximum value obtained in CHDEM was 2637 m against 2868 m in DEM. This variation in altitude is due to the use of the tool to eliminate spurious depressions, demonstrating that this should be used with caution. The variation in the boundary generated using CHDEM in relation to the ANA limit, showed the necessity of implementing a Geographic Information System (GIS) computational routine for delineation the watersheds where mouth comprises a region.
File Format	PDF HTM / HTML
Alternate Webpage(s)	https://periodicos.ufpe.br/revistas/rbgfe/article/download/233912/27398
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article