Multi-variable SWAT model calibration with remotely sensed evapotranspiration and observed flow

Franco, Ana Clara Lazzari; Bonumá, Nadia Bernardi

doi:10.1590/2318-0331.011716090

Cited by 31 publications

(24 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The best calibration achieved was an R 2 of 0.69, PBIAS of 4.86, ENS of 0.67, and KGE of 0.82. Note that KGE was used as an objective function type in the SUFI-2 calibration and validation because it could be decomposed into three terms that represented the correlation, bias, and relative variability between the measured and simulated values [65]. Hence, it allowed the simultaneous use of baseflow and streamflow in calibration and enabled comparison between different strategies.…”

Section: Swat Model Calibration and Validation Resultsmentioning

confidence: 99%

“…However, streamflow was overestimated for most of the light rainfall events (dry climate periods) and showed very good agreement with the large rainfall events (wet periods). Previous studies have shown that SWAT performed better under more humid climatic conditions [65,66]. In addition, SWAT has some problems with precisely accounting for water loss through infiltration and evapotranspiration, especially during dry climate seasons, and evaluating the soil moisture storage [67][68][69].…”

Section: Swat Model Calibration and Validation Resultsmentioning

confidence: 99%

See 1 more Smart Citation

A Comparison of Streamflow and Baseflow Responses to Land-Use Change and the Variation in Climate Parameters Using SWAT

Aboelnour

Gitau

Engel

2020

Water

View full text Add to dashboard Cite

Alteration of land use and climate change are among the main variables affecting watershed hydrology. Characterizing the impacts of climate variation and land use alteration on water resources is essential in managing watersheds. Thus, in this research, streamflow and baseflow responses to climate and land use variation were modeled in two watersheds, the Upper West Branch DuPage River (UWBDR) watershed in Illinois and Walzem Creek watershed in Texas. The variations in streamflow and baseflow were evaluated using the Soil and Water Assessment Tool (SWAT) hydrological model. The alteration in land use between 1992 and 2011 was evaluated using transition matrix analysis. The non-parametric Mann–Kendall test was adopted to investigate changes in meteorological data for 1980–2017. Our results indicate that the baseflow accounted for almost 55.3% and 33.3% of the annual streamflow in the UWBDR and Walzem Creek watersheds, respectively. The contribution of both land use alteration and climate variability on the flow variation is higher in the UWBDR watershed. In Walzem Creek, the alteration in streamflow and baseflow appears to be driven by the effect of urbanization more than that of climate variability. The results reported herein are compared with results reported in recent work by the authors in order to provide necessary information for water resources management planning, as well as soil and water conservation, and to broaden the current understanding of hydrological components variation in different climate regions.

show abstract

Section: Swat Model Calibration and Validation Resultsmentioning

confidence: 99%

Section: Swat Model Calibration and Validation Resultsmentioning

confidence: 99%

A Comparison of Streamflow and Baseflow Responses to Land-Use Change and the Variation in Climate Parameters Using SWAT

Aboelnour

Gitau

Engel

2020

Water

View full text Add to dashboard Cite

show abstract

“…Estudos referentes à calibração e validação do modelo SWAT são realizados em todo mundo. No Brasil há trabalhos que realizaram estes procedimentos e obtiveram resultados satisfatórios (Rodrigues et al, 2015;Pereira et al, 2016;Brighenti et al, 2016;Monteiro et al, 2016;Pontes et al, 2016;Franco e Bonumá, 2017;Paz et al, 2018;Santos et al, 2018), comprovando, que o modelo se aplica às regiões edafoclimáticas diferentes das quais foi desenvolvido. O principal obstáculo para a calibração do modelo em bacias hidrográficas brasileiras é a disponibilidade de dados confiáveis, que quando existentes, geralmente apresentam elevado percentual de falhas, aumentando a dificuldade do processo de calibração (Brigenthi et al, 2016;Andrade et al, 2017).…”

Section: Introductionunclassified

Calibração hidrológica do modelo SWAT em bacia hidrográfica caracterizada pela expansão do cultivo da cana-de-açúcar

Martins

Moraes

et al. 2020

Rev. Bras. Geog. Fis.

View full text Add to dashboard Cite

A dificuldade na gestão de recursos hídricos aliada à dinâmica do uso e ocupação do solo em bacias hidrográficas agrícolas são fatores relevantes para a conservação da água e solo. A gestão de bacias hidrográficas, bem como o monitoramento de cenários de expansão agrícola e mudança no uso do solo, podem se beneficiar de ferramentas de modelagem hidrossedimentológica, como o SWAT (Soil and Water Assessment Tool). Entretanto, para que os resultados obtidos sejam confiáveis, os modelos precisam ser calibrados. Objetivou-se, neste trabalho, calibrar e validar o modelo SWAT, para a variável vazão, tendo como base a bacia hidrográfica do Ribeirão do Pinhal, Limeira -São Paulo, que se caracteriza pela expansão da cana-de-açúcar sobre áreas citrícolas. Dados de vazão de um posto fluviométrico localizado no exutório da bacia foram utilizados para a calibração e validação, a partir de séries temporais diferentes. Utilizou-se o software QSWAT para a simulação hidrológica e o SWAT-CUP para a calibração e validação do modelo. O modelo foi calibrado e validado resultando nos seguintes índices estatísticos NSE=0,64; PBIAS=15,2 e RSR=0,60 para calibração e NSE=0,68 PBIAS=-2,8 e RSR=0,56 para a validação. O ajuste de parâmetros do SWAT (USLE_P, USLE_C, CN2) e do calendário de operações da cana-de-açúcar em acordo com a situação real da bacia foi necessário para a calibração do modelo. Os resultados indicam que o modelo SWAT subestima as vazões extremas, no entanto, dentro de faixa aceitável. O SWAT, após a calibração, pode ser utilizado na gestão de recursos hídricos na bacia do Ribeirão do Pinhal.Hydrological calibration of the SWAT model in a watershed characterized by the expansion of sugarcane cultivationA B S T R A C TThe difficulty in water resources management combined with the dynamics of land use and occupation in agricultural watersheds are relevant factors for water and soil conservation. River basin management, as well as monitoring scenarios of agricultural expansion and land-use change, can benefit from hydrossedimentological modeling tools such as the SWAT (Soil and Water Assessment Tool). However, for the results to be reliable, the models must be calibrated. The objective of this study was to calibrate and validate the SWAT model for the flow variable, based on the Ribeirão do Pinhal watershed, Limeira-São Paulo, which is characterized by the expansion of sugarcane over citrus areas. Flow data from a fluviometric station located in the basin's outfall were used for calibration and validation from different time series. QSWAT software was used for hydrological simulation and SWAT-CUP for model calibration and validation. The model was calibrated and validated resulting in the following statistical indices NSE = 0.64; PBIAS = 15.2 and RSR = 0.60 for calibration and NSE = 0.68 PBIAS = -2.8 and RSR = 0.56 for validation. Adjustment of SWAT parameters (USLE_P, USLE_C, and CN2) and the sugarcane operation schedule according to the actual basin situation was necessary for model calibration. The results indicate that the SWAT model underestimates the extreme flow rates, however, within an acceptable range. After calibration, the SWAT can be used to manage water resources in the Ribeirão do Pinhal basin.Keywords: Hydrologic simulation; land use; flow rate.

show abstract

“…There are five different calibration methods in SWAT-CUP: SUFI-2, PSO, GLUE, ParaSol and MSMC. The SUFI-2 method was selected because of the good results found in several studies (DAGUPPATI et al, 2015a;FRANCO;BONUMÁ, 2017;PONTES et al, 2016) and its applicability in developed countries in several regions of Brazil. The chosen method includes an uncertainty analysis and can work with a large number of parameters (Abbaspour, 2005).…”

Section: Analysis Of Sensitivity and Calibration Of The Modelmentioning

confidence: 99%

“…Most Brazilian studies have conducted sensitivity, calibration and validation analyses using data for only one watershed outlet, as can be seen in the works of Andrade, Mello and Beskow (2013), Pereira et al (2014aPereira et al ( , 2014b, Rodrigues et al (2015); Brighenti, Bonuma and Chaffe (2016), and Franco and Bonumá (2017); however, some studies have used more detailed calibration and validation techniques, for example, Lelis et al (2012), Bressiani et al (2015), and Eduardo et al (2016). Calibration using data from a single outlet, as indicated by Daggupati et al (2015a) may be adequate for small basins with uniform features, but for larger basins the results can produce mean parameter values that are overestimated or underestimated at several points, and require spatially distributed calibration.…”

Section: Introductionmentioning

confidence: 99%

Análise de sensibilidade e calibração espacial do modelo SWAT aplicado em uma bacia do litoral pernambucano através de dados climáticos observados e de reanálise (Analysis of sensitivity and calibration of the SWAT model applied in a basin in northeast of Brazil using observed and reanalysis climatic data)

Paz

Galvíncio

Holanda

et al. 2018

RBGF

View full text Add to dashboard Cite

The hydrological model SWAT is very widely used in Brazil, and calibration is needed to adjust results obtained through modeling to observed data. This article describes the spatial calibration of a SWAT model for the Goiana river basin in Pernambuco, using observed and reanalyzed climatic data. Nine rainfall stations were used, with the percentage of gaps in the simulation ranging from 0 to 14.19%. Nine stations of reanalysis climatic data obtained through the CFSR were used. The sensitivity and calibration analyses were performed in five subbasins. Use of observed data from local stations produced a greater number of satisfactorily calibrated stations. However, using both local stations and reanalysis climate data produced better statistics for subbasins with few rainfall stations that also had substantial missing data. The statistics obtained demonstrated the applicability of the model to monthly flow estimates. Even though model predictions for the driest area of the basin were unsatisfactory, the calibrated model provided good predictions for the main basin outlet.

show abstract

Multi-variable SWAT model calibration with remotely sensed evapotranspiration and observed flow

Cited by 31 publications

References 28 publications

A Comparison of Streamflow and Baseflow Responses to Land-Use Change and the Variation in Climate Parameters Using SWAT

A Comparison of Streamflow and Baseflow Responses to Land-Use Change and the Variation in Climate Parameters Using SWAT

Calibração hidrológica do modelo SWAT em bacia hidrográfica caracterizada pela expansão do cultivo da cana-de-açúcar

Contact Info

Product

Resources

About