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Article

Climate Change Impacts on Water Resources of the Largest Hydropower Plant Reservoir in Southeast Brazil

1
Water Resources Department, Universidade Federal de Lavras, Lavras 37200-900, MG, Brazil
2
Department of Agricultural and Biological Engineering, College of ACES, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
3
Center for Technological Development, Water Resources, Universidade Federal de Pelotas, Pelotas 96015-610, RS, Brazil
*
Author to whom correspondence should be addressed.
Academic Editor: Tom Ball
Water 2021, 13(11), 1560; https://doi.org/10.3390/w13111560
Received: 30 April 2021 / Revised: 27 May 2021 / Accepted: 28 May 2021 / Published: 31 May 2021
(This article belongs to the Special Issue Catchment-Scale Solutions in the Context of Climate Change)
Approximately 70% of all the electric energy produced in Brazil comes from hydropower plants. In this context, the Grande River Basin (GRB) stands out in Brazil. Some studies have been carried out to investigate the impacts of climate change in tropical regions to support water resources’ management and planning. This study aims to project the changes in the runoff that feed the Furnas Hydropower Plant (FHP) reservoir (GRB-Furnas basin), the largest and most important facility in Southeast Brazil. The lavras simulation of hydrology model (LASH) was used to project the impacts on runoff and hydrological droughts over the century in GRB-Furnas. The regional climate models (RCMs) Eta-HadGEM-ES, Eta-MIROC5, and Eta-CanESM2 forced the LASH model from 2007 to 2099, taking the representative concentration pathways (RCPs) 4.5 and 8.5. LASH simulated the runoff adequately for the baseline period (1961–2005) using the RCMs’ outputs. A noticeable reduction in precipitation was identified in the wet season, especially in the 2007–2040 period for RCP4.5 and in the 2071–2099 period for RCP8.5. As a result, a significant reduction in the runoff, mainly in the baseflow, and an increase in droughts’ severity were projected throughout the XXI Century, which may compromise the water security to the FHP reservoir. View Full-Text
Keywords: hydrological simulation; regional climate models; climate change; hydrological impacts hydrological simulation; regional climate models; climate change; hydrological impacts
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MDPI and ACS Style

Mello, C.R.; Vieira, N.P.A.; Guzman, J.A.; Viola, M.R.; Beskow, S.; Alvarenga, L.A. Climate Change Impacts on Water Resources of the Largest Hydropower Plant Reservoir in Southeast Brazil. Water 2021, 13, 1560. https://doi.org/10.3390/w13111560

AMA Style

Mello CR, Vieira NPA, Guzman JA, Viola MR, Beskow S, Alvarenga LA. Climate Change Impacts on Water Resources of the Largest Hydropower Plant Reservoir in Southeast Brazil. Water. 2021; 13(11):1560. https://doi.org/10.3390/w13111560

Chicago/Turabian Style

Mello, Carlos R., Nayara P.A. Vieira, Jorge A. Guzman, Marcelo R. Viola, Samuel Beskow, and Lívia A. Alvarenga 2021. "Climate Change Impacts on Water Resources of the Largest Hydropower Plant Reservoir in Southeast Brazil" Water 13, no. 11: 1560. https://doi.org/10.3390/w13111560

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