Mathematical models of the quantity and quality of water in hydrographic basins enable simulation of a wide variety of processes, including the production of water and sediments, and the dynamics of point and nonpoint sources of pollution. These models have become increasingly complex, requiring large amounts of input data, which can increase the uncertainty of the results of simulations. For this reason, it is essential to perform calibration and validation procedures. The objective of this work was to conduct sensitivity analysis and calibration of a distributed hydrological model (SWAT) applied to the flows of water in the watershed of the Poxim River. Satisfactory performance of the model was indicated by the values obtained for the Nash-Sutcliffe efficiency coefficient (0.77), the percent bias (5.05), the root mean square error (0.48), and the ratio of the RMSE to the standard deviation of the observations (RSR) (0.49). The set of parameters identified here could be used for the simulation and evaluation of other scenarios.
El-Nasr, A., Arnold, J.G., Feyen, J. and Berlamont, J. (2005) Modelling the Hydrology of a Catchment Using a Distributed and a Semi-Distributed Model. Hydrological Processes, 19, 573-587. http://dx.doi.org/10.1002/hyp.5610
Eckhardt, K. and Arnold, J.G. (2001) Automatic Calibration of a Distributed Catchment Model. Journal of Hydrology, 251, 103-109. http://dx.doi.org/10.1016/S0022-1694(01)00429-2
Holvoet, K., van Griensven A., Seuntjens, P. and Vanrolleghem, P.A. (2005) Sensitivity Analysis for Hydrology and Pesticide Supply towards the River in SWAT. Physics and Chemistry of the Earth, 30, 518-526. http://dx.doi.org/10.1016/j.pce.2005.07.006
Lenhart, T., Eckhardt, K., Fohrer, N. and Frede, H.G. (2002) Comparison of Two Different Approaches of Sensitivity Analysis. Physics and Chemistry of the Earth, 27, 645-654. http://dx.doi.org/10.1016/S1474-7065(02)00049-9
Ahl, R.S., Woods, S.W. and Zuuring, H.R. (2008) Hydrologic Calibration and Validation of SWAT in a Snow-Dominated Rocky Mountain Watershed, Montana, USA. Journal of the American Water Resources Association (JAWRA), 44, 1411-1430.
vanGriensven, A. (2005) Sensitivity, Auto-Calibration, Uncertainty and Model Evaluation In SWAT2005. http://biomath.ugent.be/ãnn/swathttp://biomath.ugent.be/~ann/swat_manuals/SWAT2005_manual_sens_cal_unc.pdf
Aguiar Netto, A.O., et al. (2007) Cenário dos corpos d’água na sub-bacia hidrográfica do rio Poxim—Sergipe, na zona urbana, e suas relações ambientais e antrópicas. 15th Simpósio Brasileiro de Recursos Hídricos, Rio Grande do Sul, 25-29 November 2007.
Sergipe (2013) Secretaria de Estado do Planejamento e da Ciência e Tecnologia—Superintendência de Recursos Hídricos. Atlas Digital Sobre Recursos Hídricos, Sergipe.
Silva, A.S., Buschinelli, C.C. de A., Rodrigues, I.A. and Machado, R.E. (2001) índice de sustentabilidade ambiental do uso da água (ISA_áGUA): Municípios da região do entorno do rio Poxim, SE. Embrapa Meio Ambiente, Jaguariúna, 46 p. (Boletim de Pesquisa e Desenvolvimento).
Soares, J.A. (2001) O Rio Poxim, processo urbano e meio ambiente. 67 p. Monograph (Specialization in Management of Environmental Hydric Resources), Universidade Federal de Sergipe.
Pinto, J.E.S.S. (2001) Estudos climatológicos em microbacias de clima semi-árido. 8th Encuentro de Geógrafos de América Latina, Santiago, CD-ROM, 373-382.
Embrapa (2006) Sistema Brasileiro de Classificação de Solos. Embrapa Solos, Rio de Janeiro.
Neitsch, S.L., Arnold, J.G., Kiniry, J.R. and Williams, J.R. (2011) Soil and Water Assessment Tool: Theoretical Documentation—Version 2009. Texas Water Resources Institute Technical Report No. 406. Agricultural Research Service (USDA) & Texas Agricultural Experiment Station, Texas A&M University, Temple.
Mausbach, M.J. and Dedrick, A.R. (2004) The Length We Go: Measuring Environmental Benefits of Conservation Practices. Journal of Soil and Water Conservation, 59, 96-103.
Arnold, J.G. and Fohrer, N. (2005) SWAT 2000: Current Capabilities and Research Opportunities in Applied Watershed Modeling. Hydrological Processes, 19, 563-572. http://dx.doi.org/10.1002/hyp.5611
Di Luzio, M., Arnold, J.G. and Srinivasan, R. (2005) Effect of GIS Data Quality on Small Watershed Stream Flow and Sediment Simulations. Hydrological Processes, 19, 629-650. http://dx.doi.org/10.1002/hyp.5612
Galván, L., et al. (2009) Application of the SWAT Model to an AMD-Affected River (Meca River, SW Spain). Estimation of Transported Pollutant Load. Journal of Hydrology, 377, 445-454. http://dx.doi.org/10.1016/j.jhydrol.2009.09.002
Mulungu, M.M.D. and Munishi, S.E. (2007) Simiyu River Catchment Parameterization Using SWAT Model. Physics and Chemistry of the Earth, 32, 1032-1039. http://dx.doi.org/10.1016/j.pce.2007.07.053
Neitsch, S.L., et al. (2002) Soil and Water Assessment Tool (SWAT) User’s Manual, Version 2000, Grassland Soil and Water Research Laboratory. Blackland Research Center, Texas Agricultural Experiment Station, Texas Water Resources Institute, Texas Water Resources Institute, College Station, Texas.
Shen, Z.Y., Gong, Y.W., Li, Y. and Hong, Q. (2009) A Comparison of WEPP and SWAT for Modeling Soil Erosion of the Zhangjiachong Watershed in the Three Gorges Reservoir Area. Agricultural Water Management, 96, 1435-1442. http://dx.doi.org/10.1016/j.agwat.2009.04.017
White, E.D., et al. (2011) Development and Application of a Physically Based Landscape Water Balance in the SWAT Model. Hydrological Processes, 25, 915-925 http://dx.doi.org/10.1002/hyp.7876
USDA Soil Conservation Service (1972) National Engineering Handbook, Section 4, Hydrology. USDA Soil Conservation Service, Washington DC.
Monteith, J.L. (1965) Evaporation and the Environment. 19th Symposia of the Society for Experimental Biology, 19, 205-235.
Chaplot, V. (2005) Impact of DEM Mesh Size and Soil Map Scale on SWAT Runoff, Sediment, and NO3—N Loads Predictions. Journal of Hydrology, 312, 207-222. http://dx.doi.org/10.1016/j.jhydrol.2005.02.017
Chaubey, I., Cotter, A.S., Costello, T.A. and Soerens, T.S. (2005) Effect of DEM Data Resolution on SWAT Output Uncertainty. Hydrological Processes, 19, 621-628. http://dx.doi.org/10.1002/hyp.5607
Dixon, B. and Earls, J. (2009) Resample or Not? Effects of Resolution of DEMs in Watershed Modeling. Hydrological Processes, 23, 1714-1724. http://dx.doi.org/10.1002/hyp.7306
Betrie, G.D., Mohamed, Y.A., van Griensven, A. and Srinivasan, A. (2011) Sediment Management Modelling in Blue Nile Basin Using SWAT Model. Hydrology and Earth System Sciences, 15, 807-818. http://dx.doi.org/10.5194/hess-15-807-2011
Bossa, A.Y., et al. (2012) Modeling the Effects of Crop Patterns and Management Scenarios on N and P Loads to Surface Water and Groundwater in a Semi-Humid Catchment (West Africa). Agricultural Water Management, 115, 20-37. http://dx.doi.org/10.1016/j.agwat.2012.08.011
Ndomba, P., Mtalo, F. and Killingtveit, A. (2008) SWAT Model Application in a Data Scarce Tropical Complex Catchment in Tanzania. Physics and Chemistry of the Earth, 33, 626-632. http://dx.doi.org/10.1016/j.pce.2008.06.013
Pagliero, L., Bouraoui, F., Willems, P. and Diels, J. (2011) SWAT Modeling at Pan European Scale: The Danube Basin Pilot Study. Proceedings of the 2011 International SWAT Conference, Toledo, 15-17 June 2011, 1-14.
Miranda, E.E. (2005) Brasil em Relevo. Embrapa Monitoramento por Satélite, Campinas. http://www.relevobr.cnpm.embrapa.br
Winchell, M., Srinivasan, R. and Di Luzio, J.M. (2009) ArcSWAT 2.3.4 Interface for SWAT2005: User’s Guide. Blackland Research Center: Texas Agricultural Experiment Station, Temple, 465 p.
Romanowicz, A.A., Vancooster, M., Rounsevell, I. and Junese, L. (2005) Sensitivity of the SWAT Model to the Soil and Land Use Data Parameterisation: A Case Study in the Thyle Catchment, Belgium. Ecological Modelling, 18, 27-39. http://dx.doi.org/10.1016/j.ecolmodel.2005.01.025
Boskidis, I., Gikas, G.D., Sylaios, G.K. and Tsihruntzis, V.A. (2012) Hydrologic and Water Quality Modeling of Lower Nestos River Basin. Water Resource Management, 26, 3023-3051. http://dx.doi.org/10.1007/s11269-012-0064-7
Machado, R.E. (2002) Simulação de escoamento e de produção de sedimentos em uma microbacia hidrográfica utili-zando técnicas de modelagem e geoprocessamento. PhD Thesis, Escola Superior de Agricultura Luiz de Queiroz, São Paulo.
American Society of Civil Engineers (1993) Criteria for Evaluation of Watershed Models. Journal of Irrigation and Drainage Engineering, 119, 429-442. http://dx.doi.org/10.1061/(ASCE)0733-9437(1993)119:3(429)
Nash, J.E. and Sutcliffe, J.V. (1970) River Flow Forecasting through Conceptual Model. Part 1—A Discussion of Principles. Journal of Hydrology, 10, 282-290. http://dx.doi.org/10.1016/0022-1694(70)90255-6
Feyen, L., V’azquez, R., Christiaens, K., Sels, O. and Feyen, J. (2000) Application of a Distributed Physically-Based Hydrological Model to a Medium Size Catchment. Hydrology and Earth System Sciences, 4, 47-63. http://dx.doi.org/10.5194/hess-4-47-2000
Feyereisen, G.W., Strickland, T.C., Bosch, D.D. and Sullivan, D.G. (2007) Evaluation of SWAT Manual Calibration and Input Parameter Sensitivity in the Little River Watershed. American Society of Agricultural and Biological Engineers, 50, 843-855. http://dx.doi.org/10.13031/2013.23149
Loague, K. and Green, R.E. (1991) Statistical and Graphical Methods for Evaluating Solute Transport Models: Overview and Application. Journal of Contaminant Hydrology, 7, 51-73. http://dx.doi.org/10.1016/0169-7722(91)90038-3
Moriasi, D.N., Arnold, J.G., Van Liew, M.W., Bingner, R.L., Harmel, R.D. and Veith, T.L. (2007) Model Evaluation Guidelines for Systematic Quantification of Accuracy in Watershed Simulations. American Society of Agricultural and Biological Engineers, 50, 885-900.
Santhi, C., Arnold, J.G., Williams, J.R., Dugas, W.A., Srinivasan, R. and Hauck, L.M. (2001) Validation of the SWAT Model on a Large River Basin with Point and Nonpoint Sources. Journal of the American Water Resources Association, 37, 1169-1188. http://dx.doi.org/10.1111/j.1752-1688.2001.tb03630.x
Gupta, H.V., Sorooshian, S. and Yapo, P.O. (1999) Status of Automatic Calibration for Hydrologic Models: Comparison with Multilevel Expert Calibration. Journal of Hydrologic Engineering, 4, 135-143. http://dx.doi.org/10.1061/(ASCE)1084-0699(1999)4:2(135)
Rasolomanana, S.D., Lessard, P. and Vanrolleghem, P.A. (2012) Single-Objective vs. Multi-Objective Autocalibration in Modelling Total Suspended Solids and Phosphorus in a Small Agricultural Watershed with SWAT. Water Science and Technology, 65, 643-652. http://dx.doi.org/10.2166/wst.2012.895
Singh, J., Knapp, H.V. and Demissie, M. (2004) Hydrologic Modeling of the Iroquois River Watershed Using HSPF and SWAT. Illinois Department of Natural Resources and the Illinois State Geological Survey. Illinois State Water Survey Contract Report 2004-08. http://www.isws.illinois.edu/pubdoc/CR/ISWSCR2004-08.pdf
Legates, D.R. and McCabe Jr., G.J. (1999) Evaluating the Use of “Goodness-of-Fit” Measures in Hydrologic and Hydroclimatic Model Validation. Water Resources Research, 35, 233-241. http://dx.doi.org/10.1029/1998WR900018
Van Griensven, A., Meixner, T., Grunwald, S., Bishop, T., Diluzio, M. and Srinivasan, R. (2006) A Global Sensitivity Analysis Tool for the Parameters of Multi-Variable Catchment Models. Journal of Hydrology, 324, 10-23. http://dx.doi.org/10.1016/j.jhydrol.2005.09.008
Veith, T.L. and Ghebremichael, L.T. (2009) How to: Applying and Interpreting the SWAT Auto-Calibration Tools. Proceedings of the 5th International SWAT Conference, Boulder, 5-7 August 2009, 26-33.
Parajuli, P.B. (2010) Assessing Sensitivity of Hydrologic Responses to Climate Change from Forested Watershed in Mississippi. Hydrological Processes, 24, 3785-3797. http://dx.doi.org/10.1002/hyp.7793
Neitsch, S.L., Arnold, J.G., Kiniry, J.R. and Williams, J.R. (2005) Soil and Water Assessment Tool Input/Output File Documentation. Grassland, Soil and Water Research Laboratory, ARS of USDA, Riesel.
Jah, M.K. (2011) Evaluating Hydrologic Response of an Agricultural Watershed for Watershed Analysis. Water, 3, 604-617, http://dx.doi.org/10.3390/w3020604
Abraham, L.Z., Roehrig, J. and Chekol, D.A. (2007) Calibration and Validation of SWAT Hydrologic Model for Meki watershed, Ethiopia. Proceeding of the Conference on International Agricultural Research for Development, University of Kassel-Witzenhausen and University of Gottingen, Witzenhausen, 9-11 October 2007, 5.
Benaman, J., Shoemaker, C. and Haith, D. (2005) Calibration and Validation of Soil and Water Assessment Tool on an Agricultural Watershed in Upstate New York. Journal of Hydrologic Engineering, 10, 363-374. http://dx.doi.org/10.1061/(ASCE)1084-0699(2005)10:5(363)
USDA-SCS (1986) Urban Hydrology for Small Watersheds. Technical Release No. 55 (TR-55). USDASCS, Washington DC.
Veith, T.L., Van Liew, M.W., Bosch, D.D. and Arnold, J.G. (2010) Parameter Sensitivity and Uncertainty in SWAT: A Comparison across Five USDA-ARS Watersheds. American Society of Agricultural and Biological Engineers, 53, 1477-1486.
Liew, M.W., Veith, T.L., Bosch, D.D. and Arnold, J.G. (2007) Suitability of SWAT for the Conservation Effects Assessment Project: Comparison on USDA Agricultural Research Service Watershed. Journal of Hydrologic Engineering, 12, 173-189. http://dx.doi.org/10.1061/(ASCE)1084-0699(2007)12:2(173)
Kannan, N., White, S.M., Worrall, F. and Whelan, M.J. (2007) Hydrological Modelling of a Small Catchmentusing SWAT-2000—Ensuring Correct Flow Partitioning for Contaminant Modeling. Journal of Hydrology, 334, 64-72. http://dx.doi.org/10.1016/j.jhydrol.2006.09.030
Ghebremicael, L.T., Mohamed, Y.A., Betrie, G.D., van der Zaag, P. and Teferi, E. (2013) Trend Analysis of Runoff and Sediment Fluxes in the Upper Blue Nile Basin: A Combined Analysis of Statistical Tests, Physically-Based Models and Landuse Maps. Journal of Hydrology, 482, 57-68. http://dx.doi.org/10.1016/j.jhydrol.2012.12.023
Liew, M.W., Arnold, J.G. and Bosch, D.D. (2005) Problems and Potential of Autocalibrating a Hydrologic Model. American Society of Agricultural Engineers, 48, 1025-1040. http://dx.doi.org/10.13031/2013.18514
Confessor Jr., R.B. and Whittaker, G.W. (2007) Automatic Calibration of Hydrologic Models with Multi-Objective Evolutionary Algorithm and Pareto Optimization. Journal of the American Water Resources Association, 43, 981-989. http://dx.doi.org/10.1111/j.1752-1688.2007.00080.x
Andrade, M.A., Mello, C.R. and Beskow, S. (2013) Simulação hidrológica em uma bacia hidrográfica representativa dos Latossolos na região Alto Rio Grande, MG. Revista Brasileira de Engenharia Agrícola e Ambiental, 17, 69-76. http://dx.doi.org/10.1590/S1415-43662013000100010
Blainski, E., Silveira, F.A., Conceição, G., Garbossa, L.H.P. and Vianna, L.F. (2011) Simulação de cenários de uso do solo na bacia hidrográfica do rio Araranguá utilizando a técnica da modelagem hidrológica. Agropecuária Catarinense, 24, 65-70.
Perazzoli, M., Pinheiro, A. and Kaufmann, V. (2012) Assessing the Impact of Climate Change Scenarios on Water Resources in Southern Brazil. Hydrological Sciences Journal, 58, 77-87.
Lelis, T.A., Calijuri, M.L., Santiago, A.F., Lima, D.C. and Rocha, E.V. (2012) Análise de sensibilidade e calibração do modelo SWAT aplicado em bacia hidrográfica da região sudeste do Brasil. RevistaBrasileira de Ciência do Solo, 36, 623-634. http://dx.doi.org/10.1590/S0100-06832012000200031
Mengistu, D.T. and Sorteberg, A. (2012) Sensitivity of SWAT Simulated Streamflow to Climatic Changes within the Eastern Nile River Basin. Hydrology and Earth System Sciences, 16, 391-407. http://dx.doi.org/10.5194/hess-16-391-2012
Shi, P., et al. (2011) Evaluating the SWAT Model for Hydrological Modeling in the Xixian Watershed and a Comparison with the XAJ Model. Water Resource Management, 25, 2595-2612. http://dx.doi.org/10.1007/s11269-011-9828-8
Mishra, A. and Kar, S. (2012) Modeling Hydrologic Processes and NPS Pollution in a Small Watershed in Subhumid Subtropics Using SWAT. Journal of Hydrologic Engineering, 17, 445-454. http://dx.doi.org/10.1061/(ASCE)HE.1943-5584.0000458
Rathjens, H. and Oppelt, N. (2012) SWAT Model Calibration of a Grid-Based Setup. Advances in Geosciences, 32, 55-61. http://dx.doi.org/10.5194/adgeo-32-55-2012
Ahmed, S., Farida, D. and Javier, B. (2011) Aplication of the SWAT Model to a Sprinkler-Irrigated Watershed in the Middle Ebro River Basin of Spain. Proceedings of the International SWAT Conference, Toledo, 15-17 June 2011, 135-150.