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The recognition of a watershed is extremely important for the planning of the water resources, the geotechnology contributes for a better comprehension of the natural forms in computational environment with a higher level of details, lower time-demanded precision, therefore this research aims to use computational techniques to delimit the watersheds, especially Goiana River one, in Mata Norte Zone of Pernambuco, and, at the end, to establish a relation with the watersheds data of the Oriental Northeastern Atlantic watersheds published in 2013 by ANA (Agencia Nacional de Aguas) and made available on GeoNetwork platform. It was made use of the Digital Elevation Model with resolution of 30 metres in the Software environment ArcGis 10.3, as well as a sequence of data processing available on the ArcHydrotools. The result of the obtained delimitation with the methodology applied in this paper approached the ANA data fairly enough.

Spatial analysis on the watershed of Goiana River PE: comparison with the use of geoprocessing and ANA data