Calibration of Rural Watershed Models in the North Carolina Piedmont Ecoregion

Davis, J. P.; Rohrer, C. A.; Roesner, Larry A.

doi:10.1061/40927(243)574

Cited by 3 publications

(3 citation statements)

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“…interflow, sheetflow and overland flow) and less influenced by soil composition (La Torre Torres et al 2011). These characteristics provide an opportunity to study a distinct watershed type that to our knowledge has not been examined in the literature (Sun et al 2002;Czikowsky and Fitzjarrald 2004;Harder et al 2007;Sun et al 2010;La Torre Torres et al 2011;Davis et al 2007). …”

Section: Site Descriptionmentioning

confidence: 99%

“…During this process eight parameters were adjusted, limiting their uncertainty rankings to ±40%, with eight individual runoff events. Following the work of Davis et al (2007) peak flow rates were examined in addition to flow duration curves for each model configuration. These two comparisons provided calibrated models with respect to peak flow conditions as well as the more challenging issue of flow volumes.…”

Section: Model Calibrationmentioning

confidence: 99%

“…A better understanding of the water budget of different natural environments has propelled the development of a number of hydraulic and hydrologic water resource management projects in the past decades (Sun et al 2002;Davis et al 2007;Harder et al 2007;Sun et al 2010;La Torre Torres et al 2011). Understanding the differences between hydrologic processes through the array of natural systems is critical to producing more accurate models.…”

Section: Introductionmentioning

confidence: 99%

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SWMM Modeling of a Rural Watershed in the Lower Coastal Plains of the United States

Moynihan

Vasconcelos

2014

JWMM

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The Storm Water Management Model (SWMM) has proven highly effective in modeling urban and suburban watersheds since its conception in 1969. While heavily implemented in the simulation of urban watersheds, its performance in strictly rural watersheds has been less frequently evaluated. Lower Coastal Plain watersheds are prevalent in the southern United States and the description of hydrological processes there is critical to the development of local water resources. This paper presents an ongoing research effort in a rural 2.90 km 2 site located in Pittsview, Alabama and owned by Alabama Associated General Contractors. A network of rain gauges, associated with a portable weather station, two monitoring wells and two weirs have been deployed and data is continuously recorded. Collected field data has then been used for initial development efforts of a PCSWMM model that provides representation of the rainfall-runoff processes at the watershed. As more data is obtained with regards to the local water cycle, it is anticipated that the PCSWMM model calibration will improve, which in turn will provide greater confidence in the software's ability to simulation such conditions.

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Section: Site Descriptionmentioning

confidence: 99%

Section: Model Calibrationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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SWMM Modeling of a Rural Watershed in the Lower Coastal Plains of the United States

Moynihan

Vasconcelos

2014

JWMM

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Mapeamento das publicações sobre a avaliação da disponibilidade hídrica em pequenas bacias hidrográficas

Costa¹,

Oliveira²,

Santos³

et al. 2023

RGSA

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Objetivo: investigar metodologias aplicadas para as estimativas de disponibilidade hídrica superficial e subterrânea em pequenas bacias hidrográficas, com destaque para as regiões rurais, visando possível aplicação em comunidades rurais brasileiras. Referencial teórico: em decorrência dos inúmeros casos de problemas de abastecimento populacional devido à baixa disponibilidade hídrica, esse assunto tem se tornado uma das referências para o manejo e gestão de água. Método: realizou-se uma busca bibliográfica nas plataformas Web Of Science e Scopus, visando artigos que tratassem do cálculo da vazão mínima, escoamento de base, pequenas bacias e pequenas bacias hidrográficas. Foram analisadas as metodologias desenvolvidas nos artigos de forma a selecionar as mais adequadas, verificando a disponibilidade de dados a serem utilizados em cada uma delas. Resultados e conclusão: o método de avaliação mais utilizado foram os softwares de modelagem hidrológica, para as estimativas das fontes superficiais e subterrâneas, resultado semelhante ao levantado em artigos brasileiros. O emprego de modelos hidrológicos foi um método compatível com o uso em pequenas bacias rurais, por permitir inúmeras possibilidades de resultados e de dados de entrada, auxiliando no processo de monitoramento e previsão de cenários. Implicações da pesquisa: auxiliar na tomada de decisão referente ao uso dos recursos hídricos de comunidades rurais, indicando metodologias que podem ser aplicadas a bacias hidrográficas com áreas pequenas, monitoramentos pouco constantes e os dados escassos. Originalidade/valor: a determinação de metodologias que estimem a disponibilidade hídrica e sejam aplicáveis em comunidades rurais auxilia na gestão dos recursos, para que seja possível determinar mecanismos que barrem a superexploração e garantam o desenvolvimento local.

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Long-Term Modelling of an Agricultural and Urban River Catchment with SWMM Upgraded by the Evapotranspiration Model UrbanEVA

Kachholz

Tränckner

2020

Water

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Evapotranspiration (ET) has a decisive effect on groundwater recharge and thus also affects the base flow of the receiving water. This applies above all to low-lying areas with a low depth to groundwater (GW), as is often the case in the north German lowlands. In order to analyze this relation, a coupled rainfall-runoff and hydraulic stream model was set up using the software SWMM-UrbanEVA, a version of the software SWMM that was upgraded by a detailed ET module. A corresponding model was set up for the same site but with the conventional software SWMM to compare the water balance and hydrographs. The total amount of ET calculated with the SWMM software is 7% higher than that computed with the upgraded version in the period considered. Therefore, less water is available for soil infiltration and lateral groundwater flow to the stream. This generally leads to a slight underestimation of base flows, with the exception of a notably wet summer month when the base flows were highly overestimated. Nevertheless, the base flow hydrograph shows a good adaptation to observed values (MAE = 0.014 m3s−1, R = 0.88, NSE = 0.81) but gives worse results compared to SWMM-UrbanEVA. The latter is very well able to reflect the GW-fed base flow in the sample stream in average (MAE = 0.011 m3s−1) and in its dynamics (R = 0.93, NSE = 0.85). By applying the UrbanEVA upgrade, SWMM is applicable to model the seasonal dynamics of near-natural river basins.

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Calibration of Rural Watershed Models in the North Carolina Piedmont Ecoregion

Cited by 3 publications

References 1 publication

SWMM Modeling of a Rural Watershed in the Lower Coastal Plains of the United States

SWMM Modeling of a Rural Watershed in the Lower Coastal Plains of the United States

Mapeamento das publicações sobre a avaliação da disponibilidade hídrica em pequenas bacias hidrográficas

Long-Term Modelling of an Agricultural and Urban River Catchment with SWMM Upgraded by the Evapotranspiration Model UrbanEVA

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