Climate change and water resource sustainability index for a water-stressed basin in brazil: the case study of rio verde grande basin

• Autor(a) principal: Mônica Carvalho de Sá
• Data de Publicação: 2018
• Outros Autores: Edson de Oliveira Vieira, Núbia Ribeiro Caldeira, Lorrana Cavalcante Albuquerque, Flávia Mazzer Rodrigues da Silva
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da UFMG
• Texto Completo: http://hdl.handle.net/1843/39696; http://orcid.org/0000-0001-8738-5369
• topic: CMIP5; WEAP Model; Vulnerability; Mudanças climáticas; Recursos hídricos - Aspectos ambientais; Aquicultura - Fatores climáticos

The Rio Verde Grande basin is a water-stressed basin, which is 87% in the northern part of Minas Gerais and 13% in Bahia, Brazil. It has a semi-arid climate with long and intense periods of drought. This climatic directly affects the availability of water resources and the development of the main activities in the region. There are presently no studies that evaluate the effect of climate change on the availability of water in the Rio Verde Grande basin and the sustainability of high water demand activities. The objective of this study was to analyze future changes in the availability of water in the Rio Verde Grande basin, and the sustainability of water for the major water users. This was done using a synthetic series generated through climatic and hydrological modeling programs. This study performed climate projections using the Global Climate Modelsof the Coupled Model Intercomparison Project Phase 5. The calculation of sustainability indexes and a comparison between current and future scenarios, it was observed that even if all the interventions proposed by the Water Resources Plan of the Rio Verde Grande basin are implemented, there will still be a reduction in the sustainability of water resources in some sub-basins, due to climate change.