Regionalization of Maximum and Minimum Flow in the Teles Pires Basin, Brazil

Lopes, Tárcio Rocha; Zolin, Cornélio Alberto; Prado, Giuliani do; Paulino, Janaína; Almeida, Frederico Terra de

doi:10.1590/1809-4430-eng.agric.v37n1p54-63/2017

Cited by 12 publications

(16 citation statements)

References 9 publications

(5 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The data demonstrate that GLO, GEV, Gamma, and LN3 PDFs had good performances for most of the maximum and minimum series (Table 2). Furthermore, Weibull distribution also showed a good performance for several Q7 series that it is in accordance with the studies of Lopes et al (2017) and Barbosa et al (2005). This demonstrates that such PDFs are the most recommended for MRB, being able to estimate the studied streamflow in this basin.…”

Section: Resultssupporting

confidence: 85%

Streamflow regionalization for the Mortes River Basin upstream from the Funil Hydropower Plant, MG

et al. 2020

View full text Add to dashboard Cite

Maximum and minimum streamflow are fundamental for water resource management, especially for water rights. However, lack of monitoring and scarce streamflow data limit such studies. Streamflow regionalization is a useful tool to overcome these limitations. The study developed models for regionalization of the maximum and minimum reference streamflows for the Mortes River Basin (MRB) (Water Resources Planning and Management Unit - GD2), Southern Minas Gerais State. The study used long-term streamflow historical series provided by the Brazilian National Water Agency (ANA). Previous exploratory analysis was performed, and it was observed that the streamflow series are stationary according to the Mann-Kendall test. The estimation of the streamflow for different return periods (RP) was performed by fitting Probability Density Functions (PDFs) that were tested by the Anderson-Darling (AD) test. The Generalized Extreme Values (GEV) and Wakeby were the most appropriate PDFs for maximum and minimum streamflows, respectively. The streamflow models were fitted using a power regression procedure, considering the drainage area of the watersheds as inputs. The fittings reached the coefficient of determination (R2) greater than 0.90. Thus, the streamflow regionalization models demonstrated good performance and are a potential tool to be used for water resource management in the studied basin.

show abstract

Section: Resultssupporting

confidence: 85%

Streamflow regionalization for the Mortes River Basin upstream from the Funil Hydropower Plant, MG

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Temporal distributions, as well as runoff generation rates, can be extrapolated to neighboring basins that have similar morphoclimatic characteristics (Lopes et al, 2017), considering the lack of hydrological data in Brazil (Pontes et al, 2016). This knowledge can compose a database on long-term flows, essential for planning and managing regional water resources (Pruski et al, 2016).…”

Section: Resultsmentioning

confidence: 99%

Seasonal Dynamics of Agricultural Soil Cover in Runoff Generation

et al. 2019

View full text Add to dashboard Cite

Seasonal changes in agricultural soil use due to agroclimatic conditions affect the water cycle in watersheds. This study aimed to understand the temporal variation of runoff inherent to the seasonal occupation dynamics of the agricultural soil in the basin that drains the upper valley of the Marrecas River, upstream of the urban perimeter of Francisco Beltrão, PR. The effects of runoff were verified through flow peaks simulated by the HEC-HMS model in twelve monthly soil use scenarios, under seven precipitation return periods. The results indicated a strong relationship between bare soil and flow peaks, temporally delimiting April and March as the largest runoff generators and January and August as the smallest ones. The ratio quantified by rates of increase in flow peaks ranging from 0.78 to 1.64 m 3 s −1 per km 2 of bare soil. In addition, the survey of historical precipitation data also warns of the generation of large runoff volumes in October. Therefore, the strong correlation between the increase in flow peaks and occupation by bare soil can be quantified with good precision, but it is also necessary to consider historical precipitation records to understand the temporal distribution of runoff and flood risks.

show abstract

“…Despite its large size (37,444 km 2 ), the upper Teles Pires basin has only three fluviometric stations within its coverage area. Thus, studies of water availability in this basin, as well as the assessment of floods while designing hydraulic structures, are hampered by lack of data (Lopes et al 2017). An important aspect in large-scale agriculture areas is water extraction for irrigation, which is growing fast in the upper Teles Pires basin (ANA 2017), in most cases without the appropriate information on minimum flow to support the grant of water use rights, known in Brazil as outorga.…”

Section: Introductionmentioning

confidence: 99%

Hydrological calibration and validation of the MGB-IPH model for water resource management in the upper Teles Pires River basin in the Amazon-Cerrado ecotone in Brazil

et al. 2019

View full text Add to dashboard Cite

The upper Teles Pires River basin is located in the Brazilian agriculture frontier in the north of Mato Grosso state and has experienced significant changes in land use and cover, which can cause major changes in its hydrological dynamics. Climatic and hydrologic data are scarce in the region, which poses uncertainties in the decision-making process aiming at the sustainable management of water resources in this strategic area. The aim of this study was to evaluate the performance of the Large-Scale Distributed Hydrological Model (MGB-IPH) to assess water availability of the upper Teles Pires basin and support water resource management in the Amazon-Cerrado ecotone. The MGB-IPH model was calibrated and validated using data from three streamflow stations available in the basin. In order to verify the model performance, the Nash-Sutcliffe (NS) and the PBIAS statistical parameters were applied. Our results show that, by using the MGB-IPH model with generally available data, the maximum and minimum flow regimes can be successfully assessed in the upper Teles Pires basin. The continuity curves of daily flow simulated by the model showed a good fit with the observed flow. Overall, the results demonstrated the applicability of the MGB-IPH model for water resource assessment and management in the basin.

show abstract

Regionalization of Maximum and Minimum Flow in the Teles Pires Basin, Brazil

Cited by 12 publications

References 9 publications

Streamflow regionalization for the Mortes River Basin upstream from the Funil Hydropower Plant, MG

Streamflow regionalization for the Mortes River Basin upstream from the Funil Hydropower Plant, MG

Seasonal Dynamics of Agricultural Soil Cover in Runoff Generation

Hydrological calibration and validation of the MGB-IPH model for water resource management in the upper Teles Pires River basin in the Amazon-Cerrado ecotone in Brazil

Contact Info

Product

Resources

About