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All publications of “Lucas Machado Pontes”

2 results

Spatial and Temporal Potential Groundwater Recharge: the Case of the Doce River Basin, Brazil

Eliana de Souza ORCID logo , Lucas Machado Pontes, Elpídio Inácio Fernandes Filho, Carlos Ernesto Goncalves Reynaud Schaefer, Eliana Elizabet dos Santos


ABSTRACT: Little is known about the groundwater recharge potential of weathered tropical catchments, where increasing water uptake is widespread to meet various water demands. This study aimed to estimate the volume of groundwater recharge of the Doce River Basin, Minas Gerais, Brazil. The BALSEQ model was applied to calculate the water balance over a period of two years (2007-2009). Evapotranspiration, runoff, and potential groundwater recharge (PGR) were calculated, using daily data on rainfall, potential evapotranspiration, and plant-available water. A soil […]

Spatial Distribution of Annual and Monthly Rainfall Erosivity in the Jaguarí River Basin

Lucas Machado Pontes, Marx Leandro Naves Silva, Diêgo Faustolo Alves Bispo, Fabio Arnaldo Pomar Avalos, Marcelo Silva de Oliveira, Humberto Ribeiro da Rocha


ABSTRACT The Jaguarí River Basin forms the main water supply sources for the São Paulo Metropolitan Region and other cities in the state. Since the kinetic energy of rainfall is the driving force of water erosion, the main cause of land and water degradation, we tested the hypothesis of correlation between the erosive potential of rainfall (erosivity) and geographical coordinates and altitude for the purpose of predicting the spatial and temporal distribution of the rainfall erosivity index (EI30) in the […]