Please use this identifier to cite or link to this item: http://www.repositorio.ufop.br/jspui/handle/123456789/15276
Title: Determining groundwater availability and aquifer recharge using GIS in a highly urbanized watershed.
Authors: Conicelli, Bruno Pirilo
Hirata, Ricardo
Galvão, Paulo Henrique Ferreira
Luiz, Mariana Bernardino
Simonato, Mateus Delatim
Abreu, Marcio Costa
Aranda, Nataly
Terada, Rafael
Keywords: Water balance model
Brazil
Issue Date: 2021
Citation: CONICELLI, B. P. et al. Determining groundwater availability and aquifer recharge using GIS in a highly urbanized watershed. Journal of South American Earth Sciences, v. 106, 2021. Disponível em: <https://www.sciencedirect.com/science/article/pii/S0895981120306362>. Acesso em: 29 abr. 2022.
Abstract: Extensive urbanized areas, characterized by waterproofed soils, increase runoff, which reduces the rainwater infiltration into the ground. However, water, sewer, and rainwater distribution systems leak, as there is excess irrigation in green areas, resulting in anthropic recharging in urban aquifers larger than in rural areas with equivalent climates. This scenario occurs in the Upper Tietˆe Watershed (UTW), an area of 5,868 km2 that drains the principal rivers of the Sao ̃ Paulo’s metropolitan region in Brazil, where groundwater plays a complementary role for domestic, industrial, and agricultural supplies, totalizing extraction rates higher than 11 m3 /s. In this paper, a Geographical Information System (GIS) was established to assess regional groundwater availabilities using adaptations of classic recharge methods such as soil water budget calculations and estimation of minimum sustainable river flow. For this, a surface runoff map, based on soil and slope terrain data, was evaluated using the information on water and sanitation infrastructure and meteorological data. We found that recharge in urban areas (with water and sewer mains) was 437 mm/yr and 106–407 mm/yr in rural areas. Considering the need to maintain a minimum historical flow of 20 m3 /s in the hydrographic basin of the Tietˆe River, the total exploitable groundwater is 33 m3 /s. The compilation of various GIS methods can help decision-makers develop alternative water security management plans in complex urbanized-regions such as in the metropolis of Sao ̃ Paulo.
URI: http://www.repositorio.ufop.br/jspui/handle/123456789/15276
metadata.dc.identifier.uri2: https://www.sciencedirect.com/science/article/pii/S0895981120306362
metadata.dc.identifier.doi: https://doi.org/10.1016/j.jsames.2020.103093
ISSN: 0895-9811
Appears in Collections:DEGEO - Artigos publicados em periódicos

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