Aplicação de técnicas de geoprocrocessamento para a adequação da delimitação espacial dos setores censitários, caso da cidade de Alcobaça, BA

GIS has great possibilities for understanding and analysis of urban dynamics, mainly due to capacity interaction of different socioeconomic and natural informations. To support the preparation of urban planning, IBGE defined as lower spatial unit of analysis the census tract, and associated with it containing the information of population censuses. However, many times, depending on the locality, the census tracts show spatial inconsistencies, such as the expansion of its boundaries to empty áreas, and the existence of these within the limits of the sectors, which negatively influence the results when performed some calculations by interpolating, making it necessary to issue to the census information can be analyzed more accurately. The main purpose of this article is to improve the quality of census information with the use of geoprocessing functions by combining data from various sources to generate a better quality base and thus enable representation of reality more consistently. Through geoprocessing techniques was possible to apply the proposed methodology to census tracts in Alcobaça city, and by field activity, it was found that the results of interpolating the inverse square of the distance of the census tracts, when the empty areas was eliminated, it was even more faithful to reality than the interpolation of official census tracts.