Application of the SWAT hydrologic model to a tropical watershed at Brazil

Fukunaga, Danilo Costa; Cecílio, Roberto Avelino; Zanetti, Sandra Aparecida Serra; Oliveira, Laís Thomazini; Caiado, Marco Aurélio Costa

doi:10.1016/j.catena.2014.10.032

Cited by 109 publications

(92 citation statements)

References 59 publications

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“…In addition, this point was supported by some similar previous studies of [19,22,23] even for a case study in Vietnam [24]. …”

Section: Swat Calibration and Validation For Surface Runoffsupporting

confidence: 81%

“…Although many studies have been conducted using the modeling method at watershed scale for estimating Q, to name some of them [18][19][20][21] employing the SWAT, KINEROS2 and the HBV and VIC models, little attention has been paid to tropical regions using the SWAT model such as [22,23] and for regions of Vietnam [24]. Similarly with studies on surface runoff, there is a large amount of literature available on research into ET including direct or in situ measurement [25,26] and indirect methods (referring to modeling [3,16] and using satellite technology [27,28]), from watershed/catchment scales [29,30] to the global scale [31][32][33] and others.…”

mentioning

confidence: 99%

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Modeling Surface Runoff and Evapotranspiration using SWAT and BEACH for a Tropical Watershed in North Vietnam, Compared to MODIS Products

Nguyễn

Kappas

2015

IJARSG

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Accurate estimation of surface runoff (Q) and evapotranspiration (ET) is a challenging task but an important research topic because both Q and ET play vital roles in the study of the hydrological cycle, of climate change, water resources, flood management and so on. In this paper we will present the modeling method to estimate the daily Q and ET for a medium-sized watershed in the tropical region of the North of Vietnam using the Soil and Water Assessment Tool (SWAT) and Bridging Event and Continuous Hydrological (BEACH) models. The models were calibrated and validated for the river discharge for SWAT and evaporation (E) for BEACH in a 12 year period from 2001 to 2012. The simulated ETs by the models were compared with the satellite-based ET of MODIS products. Our simulation results show that the SWAT and BEACH models are capable of satisfactorily reproducing (with the NSE > 0.62 and R 2 > 0.78) the stream-gauged river discharge and the observed E, respectively. Daily ET varied from 0.3 to 14 mm day -1 and was highest from May to August and lowest from December to March. Although the monthly and yearly MODIS ETs were slightly higher than those of SWAT and BEACH, a strong relationship between them was found with a standard deviation ranging from three to 40 mm. A light decrease of ET values in the 12 years can be seen in the result analyses; however a longer simulation time might be needed to ensure this trend.

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“…In addition, this point was supported by some similar previous studies of [19,22,23] even for a case study in Vietnam [24]. …”

Section: Swat Calibration and Validation For Surface Runoffsupporting

confidence: 81%

mentioning

confidence: 99%

Modeling Surface Runoff and Evapotranspiration using SWAT and BEACH for a Tropical Watershed in North Vietnam, Compared to MODIS Products

Nguyễn

Kappas

2015

IJARSG

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“…As can be seen in Table 4, the CN2 values were increased by 1% and 13% for the KRB and JRB, respectively. This increment of CN2 values was also observed in calibration of other tropical SWAT models [75][76][77]. The CN2 value was higher in the JRB as it is dominated by oil palm plantations, where the surface runoff is generally higher than in a forest basin (KRB).…”

Section: Temperature Validationsupporting

confidence: 71%

Assessment of Three Long-Term Gridded Climate Products for Hydro-Climatic Simulations in Tropical River Basins

Tan

Gassman

Cracknell

2017

Water

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Gridded climate products (GCPs) provide a potential source for representing weather in remote, poor quality or short-term observation regions. The accuracy of three long-term GCPs (Asian Precipitation-Highly-Resolved Observational Data Integration towards Evaluation of Water Resources: APHRODITE, Precipitation Estimation from Remotely Sensed Information using Artificial Neural Network-Climate Data Record: PERSIANN-CDR and National Centers for Environmental Prediction Climate Forecast System Reanalysis: NCEP-CFSR) was analyzed for the Kelantan River Basin (KRB) and Johor River Basin (JRB) in Malaysia from 1983 to 2007. Then, these GCPs were used as inputs into calibrated Soil and Water Assessment Tool (SWAT) models, to assess their capability in simulating streamflow. The results show that the APHRODITE data performed the best in precipitation estimation, followed by the PERSIANN-CDR and NCEP-CFSR datasets. The NCEP-CFSR daily maximum temperature data exhibited a better correlation than the minimum temperature data. For streamflow simulations, the APHRODITE data resulted in strong results for both basins, while the NCEP-CFSR data showed unsatisfactory performance. In contrast, the PERSIANN-CDR data showed acceptable representation of observed streamflow in the KRB, but failed to track the JRB observed streamflow. The combination of the APHRODITE precipitation and NCEP-CFSR temperature data resulted in accurate streamflow simulations. The APHRODITE and PERSIANN-CDR data often underestimated the extreme precipitation and streamflow, while the NCEP-CFSR data produced dramatic overestimations. Therefore, a direct application of NCEP-CFSR data should be avoided in this region. We recommend the use of APHRODITE precipitation and NCEP-CFSR temperature data in modeling of Malaysian water resources.

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“…Hydrological models applied in river basins have been increasingly used to facilitate alternative water management and flood control (ARAGÃO et al, 2013;PEREIRA et al, 2014a;FUKUNAGA et al, 2015). One of the models most used worldwide for predicting soil erosion and transport of pollutants is the hydrosedimentological model Soil and Water Assessment Tool (SWAT).…”

Section: Introductionmentioning

confidence: 99%

INFLUENCE OF LAND USE CHANGE ON SEDIMENT YIELD: A CASE STUDY OF THE SUB-MIDDLE OF THE SÃO Francisco River Basin

Silva

Souza

2016

Eng. Agríc.

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ABTSRACT: Erosion risk mapping and assessment are important for planning of natural resource management tool. The objective of this study was to simulate different scenarios of land use in the Sub-Middle of the São Francisco River Basin using the Soil and Water Assessment (SWAT) model to analyze the effects of changes in sediment yield, making comparisons with the present land use classification. The scenario analysis was (i) vegetation type characteristic of the semiarid region, (ii) growing corn and (iii) bare soil. For calibration procedure, the first three years of time series from 1993 to 1994 were validated using data from 1995 to 2004. The SWAT model employs the Modified Universal Soil Loss Equation (MUSLE) to compute soil erosion data. The results of simulations for different land uses allowed the identification of areas with a high potential for erosion by water. The major impact produced by sediment inflow was in the bare soil scenario, corresponding to an increase of 93.7% over the current land use. The landscape management in river basins using SWAT model can help identify areas particularly susceptible to erosion process.

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Application of the SWAT hydrologic model to a tropical watershed at Brazil

Cited by 109 publications

References 59 publications

Modeling Surface Runoff and Evapotranspiration using SWAT and BEACH for a Tropical Watershed in North Vietnam, Compared to MODIS Products

Modeling Surface Runoff and Evapotranspiration using SWAT and BEACH for a Tropical Watershed in North Vietnam, Compared to MODIS Products

Assessment of Three Long-Term Gridded Climate Products for Hydro-Climatic Simulations in Tropical River Basins

INFLUENCE OF LAND USE CHANGE ON SEDIMENT YIELD: A CASE STUDY OF THE SUB-MIDDLE OF THE SÃO Francisco River Basin

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