Simulating Atrazine Transport with HSPF in an Agricultural Watershed

Laroche, Anne‐Marie; Gallichand, Jacques; Lagacé, Réal; Pesant, A. R.

doi:10.1061/(asce)0733-9372(1996)122:7(622)

Cited by 84 publications

(55 citation statements)

References 6 publications

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“…Meteorological stations are sparsely located in some areas and are not all active on any given day. Typical HSPF models rely on very few climate stations, some with only one station to represent the entire watershed [18][19][20][21]. The objective of the meteorological development was to enhance the spatial distribution of daily meteorological data and therefore increase the accuracy of modeled streamflow and suspended sediment.…”

Section: Gridded Meteorological Inputs To Hspfmentioning

confidence: 99%

Characterizing Changes in Streamflow and Sediment Supply in the Sacramento River Basin, California, Using Hydrological Simulation Program—FORTRAN (HSPF)

Stern¹,

Flint²,

Minear³

et al. 2016

Water

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A daily watershed model of the Sacramento River Basin of northern California was developed to simulate streamflow and suspended sediment transport to the San Francisco Bay-Delta. To compensate for sparse data, a unique combination of model inputs was developed, including meteorological variables, potential evapotranspiration, and parameters defining hydraulic geometry. A slight decreasing trend of sediment loads and concentrations was statistically significant in the lowest 50% of flows, supporting the observed historical sediment decline. Historical changes in climate, including seasonality and decline of snowpack, contribute to changes in streamflow, and are a significant component describing the mechanisms responsible for the decline in sediment. Several wet and dry hypothetical climate change scenarios with temperature changes of 1.5 • C and 4.5 • C were applied to the base historical conditions to assess the model sensitivity of streamflow and sediment to changes in climate. Of the scenarios evaluated, sediment discharge for the Sacramento River Basin increased the most with increased storm magnitude and frequency and decreased the most with increases in air temperature, regardless of changes in precipitation. The model will be used to develop projections of potential hydrologic and sediment trends to the Bay-Delta in response to potential future climate scenarios, which will help assess the hydrological and ecological health of the Bay-Delta into the next century.

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Section: Gridded Meteorological Inputs To Hspfmentioning

confidence: 99%

Characterizing Changes in Streamflow and Sediment Supply in the Sacramento River Basin, California, Using Hydrological Simulation Program—FORTRAN (HSPF)

Stern¹,

Flint²,

Minear³

et al. 2016

Water

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show abstract

“…This study applies BASINS to predict hydrologic responses. BASINS is also an integrated decision-making system (Laroche et al 1996;Jacomino and Fields 1997;Whittemore and Beebe 2000;Luzio et al 2002;Albek et al 2004;Hsieh and Yang 2006). Because most environmental data involve spatial variability, many studies use geographic information systems (GISs) (Helmlinger et al 1993;Montgomery and Foufoula-Georgiou 1993;.…”

Section: Basins Modelmentioning

confidence: 99%

Effects of spatial data resolution on runoff predictions by the BASINS model

Chang

Chao

2013

Int. J. Environ. Sci. Technol.

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The BASINS model, developed by the United States EPA, is a popular simulation tool for predicting watershed responses, such as runoff, pollution exports, and water quality. It requires large amounts of data to set parameters. Many studies state that model input is a major source of model uncertainty. Thus, improvements to the quality and completeness of the data will improve the certainty of the model. The objective of this study is to discuss the effects of spatial data, including digital elevation models (DEMs) and spatial rainfall records, on predictions of runoff from the BASINS model. The result shows that both DEMs and rainfall data can significantly influence peak flow and runoff volume. Rainfall input has more influence on the curve shape of hydrograph than DEM resolution. DEM resolution can have more impact on peak flow predictions than rainfall input. Because the model uncertainties from DEMs and rainfall records influence each other, the prediction error does not always decrease when DEM resolution increases. The present results show that the BASINS model produces reliable answers in the case area when the grid size is less than 100 m 9 100 m and the precipitation records from the Bihu Rainfall Station are correct and complete.

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“…Because of its modular design, HSPF can be used for a range of simple to complex watershed simulations including urban and agricultural land use, surface and subsurface processes, runoff, sediment export, and the fate and transportation of nutrients, pesticides, and other water quality constituents [11,15]. HSPF has been used successfully to model the stream hydrology and quantities of sediment, nutrients, and pesticides from agricultural lands [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Application of BASINS/HSPF in the Koycegiz–Dalyan watershed in Turkey: a developing country case study in watershed modeling

Baloch¹,

Ames²,

Tanık³

2011

WIT Transactions on Ecology and the Environment

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A dynamic simulation model, HSPF (Hydrological Simulation Program-FORTRAN), is used for the simulation of hydrology and diffuse pollution in the Namnam sub basin of Koycegiz-Dalyan watershed in Turkey using a minimum amount of data required for model application. The resulting correlation coefficients for the mean daily and monthly flows for the Namnam stream were found to be 0.634 and 0.847 for calibration, and 0.761 and 0.843 for validation, respectively, using the Expert System for the calibration of HSPF (HSPEXP). HSPEXP criteria for calibration of HSPF based on the comparison of statistics between simulated and observed flows varied from fair to very good, except for the summer flow volume and total of the lowest 50% flows. Sediment, nitrate-N, orthophosphate-P, and BOD loads were determined for different land uses in the Namnam watershed. Agricultural activity was identified as the major source of sediments, and pastures with livestock grazing produced the highest NPS fluxes. The results emphasize the importance of advanced modeling tools even in the absence of high quality, continuous and consistent data.

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Simulating Atrazine Transport with HSPF in an Agricultural Watershed

Cited by 84 publications

References 6 publications

Characterizing Changes in Streamflow and Sediment Supply in the Sacramento River Basin, California, Using Hydrological Simulation Program—FORTRAN (HSPF)

Characterizing Changes in Streamflow and Sediment Supply in the Sacramento River Basin, California, Using Hydrological Simulation Program—FORTRAN (HSPF)

Effects of spatial data resolution on runoff predictions by the BASINS model

Application of BASINS/HSPF in the Koycegiz–Dalyan watershed in Turkey: a developing country case study in watershed modeling

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