Large-scale hydrological modelling of the Upper Paraná River Basin

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Abstract

The Upper Paraná River Basin (UPRB) has undergone many rapid land use changes in recent decades, due to accelerating population growth. Thus, the prediction of water resources has crucial importance in improving planning and sustainable management. This paper presents a large-scale hydrological modelling of the UPRB, using the Soil andWater Assessment Tool (SWAT) model. The model was calibrated and validated for 78 outlets, over a 32-year simulation period between 1984 and 2015. The results and the comparison between observed and simulated values showed that after the calibration process, most of the outlets performed to a satisfactory level or better in all objective functions analyzed with 86%, 92%, 76%, 88%, and 74% for Percent bias, Coefficient of determination, Nash-Sutcliffe efficiency, Kling-Gupta efficiency, and the Ratio of Standard deviation of observations to root mean square error, respectively. The model output provided in this work could be used in further simulations, such as the evaluation of the impacts of land use change or climate change on river flows of the Upper Paraná Basin.

Detaljer

Författare
Enheter & grupper
Externa organisationer
  • University of São Paulo
  • Federal University of Technology – Paraná
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Oceanografi, hydrologi, vattenresurser

Nyckelord

Originalspråkengelska
Artikelnummer882
TidskriftWater (Switzerland)
Volym11
Utgivningsnummer5
StatusPublished - 2019
PublikationskategoriForskning
Peer review utfördJa