Sensitivity Analysis and Calibration of Hydrological Modeling of the Watershed Northeast Brazil

Silva, Marinoé Gonzaga da; Netto, Antenor de Oliveira de Aguiar; Neves, Ramiro; Vasco, Anderson Nascimento do; Almeida, Carina; Faccioli, Gregório Guirado

doi:10.4236/jep.2015.68076

Cited by 47 publications

(30 citation statements)

References 45 publications

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“…NSE ranges from minus infinity (poor fit) to one (perfect fit), with zero indicating that the predictions are no better than the observed average

\overset{O}{true}

. Following da Silva et al (), NSE values larger than 0.75 indicate a very good model performance, while values of NSE between 0.4 and 0.75 suggest a satisfactory agreement and NSE values smaller than 0.4 indicate an unsatisfactory fit.…”

Section: Experimental Test Casesmentioning

confidence: 94%

“…To quantify the differences between the numerical predictions and measured data, the Nash–Sutcliffe efficiency coefficient (NSE) is introduced below (ASCE (American Society of Civil Engineers) Task Committee on Definition of Criteria for Evaluation of Watershed Models of the Watershed Management Committee, Irrigation and Drainage Division, ; da Silva et al, ; Nash & Sutcliffe, ):

NSE = 1 - \frac{\sum_{i = 1}^{n} {(O_{i} - S_{i})}^{2}}{\sum_{i = 1}^{n} {(O_{i} - \overset{false¯}{O})}^{2}}

where O and S represent the observed data and numerical predictions, respectively, and n is the number of pairs of the measured and computed variables. NSE ranges from minus infinity (poor fit) to one (perfect fit), with zero indicating that the predictions are no better than the observed average

\overset{O}{true}

.…”

Section: Experimental Test Casesmentioning

confidence: 99%

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A 2D hydrodynamic model for shallow water flows with significant infiltration losses

Cao

Liu

et al. 2020

Hydrological Processes

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Infiltration losses may be significant and warrant proper incorporation into mathematical models for river floods in arid and semi-arid areas, rainfall-induced surface runoffs in watersheds and swashes on beaches. Here, a depth-averaged twodimensional hydrodynamic model is presented for such processes based on the cellcentred finite volume method on unstructured meshes, with the full Green-Ampt equation evaluating the infiltration rate. A local time stepping strategy is employed along with thread parallelization with Open Multi-processing and high-performance computing to reduce model run time and therefore facilitate applications for largescale processes. The numerical solutions generally agree with the experimental and field-measured data for typical cases with significant infiltration losses. The case study shows that neglecting infiltration leads to an overestimated discharge hydrograph, which cannot be compensated by means of varied bed resistance as estimated by Manning roughness, and the infiltration parameters play disparate roles in modifying shallow flows compared with Manning roughness. In addition, infiltration affects bed shear stress, which in turn modifies the critical bed sediment size that could be initiated for incipient motion by the flow and therefore needs to be properly accounted for when sediment transport and morphological evolution are to be resolved. K E Y W O R D Shydrodynamic model, infiltration loss, river flood, surface runoff, swash

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“…NSE ranges from minus infinity (poor fit) to one (perfect fit), with zero indicating that the predictions are no better than the observed average

\overset{O}{true}

Section: Experimental Test Casesmentioning

confidence: 94%

NSE = 1 - \frac{\sum_{i = 1}^{n} {(O_{i} - S_{i})}^{2}}{\sum_{i = 1}^{n} {(O_{i} - \overset{false¯}{O})}^{2}}

\overset{O}{true}

.…”

Section: Experimental Test Casesmentioning

confidence: 99%

A 2D hydrodynamic model for shallow water flows with significant infiltration losses

Cao

Liu

et al. 2020

Hydrological Processes

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“…Hal ini menunjukan bahwa model SWAT cukup baik untuk mensimulasikan debit aliran di Sub DAS Cimanuk Hulu. Menurut Silva et al (2015) menyatakan nilai 0.4 < NSE < 0.5 bahwa model SWAT dapat diterima dan digunakan untuk mensimulasi debit aliran di suatu DAS (Gambar 1).…”

Section: Skenario 3 : Penerapan Teknik Kta Berdasarkan Potensi Erosiunclassified

Analisis Respon Hidrologi dan Simulasi Teknik Konservasi Tanah dan Air Sub DAS Cimanuk Hulu

et al. 2019

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Cimanuk Watershed is a priority catchment in West Java Province. The objective of study is to analyze various land use scenarios to improve base flow and lateral flow. The analysis use SWAT Hydrology model. The study showed that model has a good performance in predicting flow discharge produced NSE 0.56 (satisfactorily) and R2 0.70. There are four scenarios to be analyzed. The best base flow and lateral flow analyses is from the first scenario with soil and water conservation techniques. The scenario resulted the river regime coefficient by 78 (moderat), reduce direct runoff by 40.76% and increase lateral by 536.95 mm. Keywords: Base flow, landuse, lateral flow, soil and water conservation techniques, SWAT model

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“…However, the uncertainty due to scarcity of these data is quite common in several areas of Colombia, due to the complexity of the topography (Meerveld and 65 Weiler, 2008). In addition, it is necessary to generate tools for calibration and validation of synthetic data to the hydrological modeling process (Blanco-Gutiérrez, Varela-Ortega and Purkey, 2013;da Silva et al, 2015). The calibration and validation of data through modeling, has enabled the verification of the assumptions that underlie the hydrological model used, which has contributed significantly to the generation of new knowledge (Ibarra-Zavaleta et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Hydrological Modeling in Tropical Regions via TopModel. Study Case: Central Sector of the Middle Magdalena Valley - Colombia

Arenas-Bautista¹,

Arboleda-Obando²,

Duque-Gardeazabal³

et al. 2018

Preprint

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Hydrological modeling allows us to make a comprehensive assessment of the interaction between dynamics of the hydrological cycle, climate conditions, and land use. These modeling results are relevant in water resources management field. We use TopModel (TOPography based hydrological MODEL for the hydrological 15 modeling of an area of 17 000 km 2 in the Middle Magdalena Valley (MMV), a tropical basin located in Colombia.This study is located in the intertropical convergence zone (ITCZ) which is characterized by special meteorological conditions and fast water fluxes over the year. This area has been subjected to significant land use changes, as a result of intense economic activities, e.g., agriculture, hydropower energy and oil & gas production (Avellaneda, 2003). The proposed model is based on a record of 12 years of: i.) daily precipitation data from observed gauges, ii.) 20 daily evapotranspiration data from temperature data and iii.) daily streamflow data as observed data. A calibration process was performed using data from 2000 to 2008, and a validation was performed with data from 2009 to 2012.The Nash-Sutcliffe coefficient was used as an objective function to assess the quality of these processes (values of this metric are between 0.74 and 0.73 respectively, for model calibration and validation). The results show us an adequate performance of the model in areas of the tropical region and allow us to analyze the relationship between 25 water storage capacity in the soils of the area with subsurface runoff. This conclusion is consistent with the characteristics of the region. The calibrated model provides an idea about the hydrological functioning of the basin and estimates an approximation of the groundwater recharge in the region. The estimation of the recharge is important to quantify the interaction of surface water and groundwater, especially during the dry season, due to its importance in the analysis of scenarios with climate variability. 30

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Sensitivity Analysis and Calibration of Hydrological Modeling of the Watershed Northeast Brazil

Cited by 47 publications

References 45 publications

A 2D hydrodynamic model for shallow water flows with significant infiltration losses

A 2D hydrodynamic model for shallow water flows with significant infiltration losses

Analisis Respon Hidrologi dan Simulasi Teknik Konservasi Tanah dan Air Sub DAS Cimanuk Hulu

Hydrological Modeling in Tropical Regions via TopModel. Study Case: Central Sector of the Middle Magdalena Valley - Colombia

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