Hydrosedimentological modeling with SWAT using multi-site calibration in nested basins with reservoirs

Zanin, Paulo Rodrigo; Bonumá, Nadia Bernardi; Corseuil, Cláudia Weber

doi:10.1590/2318-0331.231820170153

Cited by 7 publications

(9 citation statements)

References 86 publications

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“…The decrease in the ESCO value from 0.95 to 0.36 allowed more water to be extracted from lower levels to meet the soil evaporative demands [49] and reduced the streamflow [50]. The GW_DELAY was reduced from 31 to 7.09, which would increase the baseflow in the model, also reported by Zanin et al [14] as the parameter adjusts the time water moves through the soil profile to the shallow aquifer recharge [49]. The CH_K2 value indicates the measure of the rate of water loss from the channel to groundwater [45].…”

Section: Sensitivitymentioning

confidence: 69%

“…For the Navet hydrological model, it was found that the range of Res_K was 0.4 to 0.8. Noting that the soils at the Navet Reservoir can also be described as silty clay to clay [25], and for a soil texture reported as predominantly clayey/very clayey, it was found that Res_K was 0.30 [14] and that the calibrated values appear reasonable.…”

Section: Sensitivitymentioning

confidence: 99%

“…SWAT has been successfully utilized by many researchers [13]. Some studies that used SWAT and calibrated reservoir parameters for different applications include; Zanin et al [14] with the evaluation of the calibrations of the water and sediment balance in Brazil; Carvalho-Santos et al [15] assessing the implications of climate change in the reservoir planning in Portugal; Wu and Chen [16] using SWAT in the evaluation of the performance of a reservoir operation scheme in China, and Vale and Holman [17] employing SWAT to improve the understanding of the hydrological functioning of the lake system in the UK.…”

Section: Introductionmentioning

confidence: 99%

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Use of the SWAT model for estimating reservoir volume in the Upper Navet watershed in Trinidad

et al. 2021

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In tropical small islands the application of hydrological modelling is challenged by the scarcity of input data. Using in-situ and statistically estimated data, a hydrological model was calibrated and validated for the Upper Navet watershed in Trinidad, a small Caribbean island. The model was built using the soil water assessment tool (SWAT). The sensitivity analysis, calibration and validation were performed in SWAT calibration and uncertainty program (SWAT-CUP) using sequential uncertainty fitting (SUFI-2). The results revealed that for the estimated volume of water flowing into the reservoir (Flow_In) there were six sensitive parameters. To estimate the reservoir volume (Res_Vol), a modification of only the effective hydraulic conductivity was required. The model’s performance for the Flow_In validation showed acceptable values (R2 = 0.91 and NSE = 0.81). The uncertainty analysis indicated lower than recommended values for both the R-factor (0.46) and P-factor (0.31). For Res_Vol, the model’s validation performance indicated acceptable values (R2 = 0.72 and NSE = 0.70) and the P- and R-factors were 0.80 and 0.64, respectively. Based on the statistical metrics, the uncertainty for the Res_Vol was regarded as reasonable. However, care must be taken with the model’s use in the dry season, as the simulated Flow_In was generally over-predicted. A second validation of the model was performed for the reservoir under different negative (removal) and positive (addition) water amounts which confirmed the model’s ability to estimate the Res_Vol. The hydrological model established can therefore serve as a useful tool for water managers for the estimation of the Res_Vol at the Navet reservoir.

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Section: Sensitivitymentioning

confidence: 69%

Section: Sensitivitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Use of the SWAT model for estimating reservoir volume in the Upper Navet watershed in Trinidad

et al. 2021

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“…RCHRG DP has a range of 0 to 1, and lowering it reduces the fraction of percolation that fills deep aquifers. Percolated soil water replenishes more shallow aquifers in this situation, implying an increase in baseflow (Zanin et al, 2018).…”

Section: Sensitivity Analysismentioning

confidence: 97%

Evaluation of Different Runoff Curve Number (CN) Approaches on Water Regulation Services Assessment in Intermittent Micro Catchment Dominated by Oil Palm Plantation

et al. 2021

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Surface runoff is a primary driving factor for water regulation services on oil palm plantations as it determines the hydrological components and other biogeochemical process. Therefore, understanding on their interaction and contribution within the watershed system is important to support decision-making system. Here, we applied Soil and Water Assessment Tools (SWAT) model to simulate water regulation services for an intermittent micro-catchment dominated by oil palm plantation in Harapan Landscapes, Batanghari Regency, Jambi Province. In this study, we used two different runoff curve number (CN) approaches in the SWAT model, namely the soil moisture curve number (CN-SM) and the plant evaporation curve number (CN-ET), to evaluate their applicability and uncertainty for assessing water regulation services. SWAT was automatically calibrated and validated against daily observed streamflow data. The results showed that the model performed well as indicated by hydrograph visual interpretation and statistical indicators. The performance was good for calibration and validation for both approaches with high R2 and Nash-Sutcliffe Efficiency (NSE). Also, the uncertainty was acceptable with P-factor >70% and R-factor <1. Differences in CN-SM and CN-ET's conceptual structure have caused variations in the calibrated parameters' best-fit value and their sensitivity to streamflow simulations, which implicated for other components' output water regulation services. However, CN-ET approach was less responsive to area's biophysical conditions for runoff generation than CN-SM one. This implicated that CN-ET generated low soil water storage and an overestimated actual evapotranspiration. This modeling exercise showed selection of a runoff CN approach by considering biophysical characteristics is important for calculating and simulating water balance component in such watershed. The accuracy of the simulation will significantly influence watershed management recommendations to improve water regulation's sustainability.

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“…Although the majority of research in the literature focusing on SWAT model concludes that this model can satisfactorily estimate sediments (Duru et al, 2018), there are numerous studies on sediment modeling in which it was not possible to obtain satisfactory results (Zanin et al, 2018;Ferrigo, 2014;Strauch et al, 2013;Uzeika et al, 2012). We assume that the origin of the inconsistencies in the solid discharge simulations is due in part to the data that generated the sediment rating curve (daily sampling of solid suspended discharge -Qss, and flow measurement -Q), which presented a high dispersion along with the historical series.…”

Section: Calibration and Validationmentioning

confidence: 99%

Application of the SWAT hydrological model in flow and solid discharge simulation as a management tool of the Indaia River Basin, Alto São Francisco, Minas Gerais

Simões¹,

Condé²,

Roig

et al. 2021

Rev. ambiente água

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Measurement and evaluation of soil erosion and consequent sediment yield are fundamental in the planning and management of watersheds, as they allow the identification of critical areas susceptible to erosive processes. This study analyzed the sediment yield generated by water erosion in the Indaia River Basin, Alto São Francisco, Minas Gerais, by using the SWAT hydrological model. From a regional/local scale, the initial simulation of the variables (flow and solid discharge) was performed on a monthly scale from 1988 to 2017. Then, parameter-sensitivity analysis, calibration, and validation of the model were executed. In the monthly calibration (1988 to 2007), the performance of the simulations for flow was R2=0.92 and NSE=0.91 and for total solid discharge R2=0.51 and NSE=0.50. In the monthly validation (2008 to 2017) for flow, R2=0.85 and NSE=0.82 was obtained and for total solid discharge R2=0.19 and NSE=0.16. Despite the unsatisfactory result in the validation stage, the model was able to analyze the distribution of sediment production by sub-basins or even by the Hydrologic Response Unit (HRU). Therefore, a sediment-yield map was generated which qualitatively indicated a tendency for greater erosive processes in the central portion of the basin. The results will support public policies mitigating environmental degradation of the Indaia River Basin.

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Hydrosedimentological modeling with SWAT using multi-site calibration in nested basins with reservoirs

Cited by 7 publications

References 86 publications

Use of the SWAT model for estimating reservoir volume in the Upper Navet watershed in Trinidad

Use of the SWAT model for estimating reservoir volume in the Upper Navet watershed in Trinidad

Evaluation of Different Runoff Curve Number (CN) Approaches on Water Regulation Services Assessment in Intermittent Micro Catchment Dominated by Oil Palm Plantation

Application of the SWAT hydrological model in flow and solid discharge simulation as a management tool of the Indaia River Basin, Alto São Francisco, Minas Gerais

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