poster - International Conference of Agricultural Engineering

hydrologically homogeneous regions for Doce river basin. This work is part of the doctoral
thesis of Professor Abrahão Alexandre Alden Elesbon.
2. MATERIAL AND METHODS
2.1. REGION STUDY
The Doce river basin is located in Southeastern Brazil, between parallels 17° 45'and 21° 15'S
and longitudes 39°30 'and 43°45' W, with an average altitude of 578 meters. It has drainage
area of approximately 83,400 km ², of which 86% belong to the state of Minas Gerais and
14% for the state of Espírito Santo (PIRH, 2010). Figure 1 shows the geographical location of
the study area and 61 stations selected fluviometric monitoring.
2.2. DATABASE AND APPLICATIONS
The study was conducted using data from 61 gauging stations in the network of
hydrometeorological National Water Agency - ANA. The series used consisted of daily data
flow corresponding to the base period 1976 to 2005. It is emphasized that it was limited to
use of data by the year 2005 because, at the outset, it constitutes the most recent year with
available data consisted by ANA.
Figure 1 : Geographical location of the Doce river basin and the gauging stations
selected.
Were used the vector base elevation (contour lines and point elevations) and hydrography of
the river basin obtained from the Brazilian Institute of Geography and Statistics - IBGE, scale
1:250,000 (IBGE, 2010). The vector base ottocodificada the Doce river Basin was obtained
from the IGAM (MINAS, 2010). The multivariate statistical analyzes were performed using
the Statistica ® 7.0, developed by "StatSoft."
For the generation of digital elevation model hydrographically conditioning (MDEHC),
automatic retrieval of morphometric variables, average rainfall and spatial distribution of
results we used the Geographic Information System, ArcGIS ® 10.0, developed by the
"Environmental Systems Research Institute - ESRI," as geoprocessing tool of vectors and
spatial data.
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