Calibration and Validation of the SWAT Model on the Watershed of Bafing River, Main Upstream Tributary of Senegal River: Checking for the Influence of the Period of Study  

作　　者：Moussé Landing Sane Soussou Sambou Issa Leye Didier Maria Ndione Samo Diatta Ibrahima Ndiaye Mamadou Lamine Badji Seïdou Kane Moussé Landing Sane;Soussou Sambou;Issa Leye;Didier Maria Ndione;Samo Diatta;Ibrahima Ndiaye;Mamadou Lamine Badji;Seïdou Kane(Faculty of Sciences and Technology, Department of Physics, Cheikh Anta Diop University, Dakar, Senegal;UFR Science and Technology, Department of Physics, University of Assane Seck, Ziguinchor)

机构地区：[1]Faculty of Sciences and Technology, Department of Physics, Cheikh Anta Diop University, Dakar, Senegal [2]UFR Science and Technology, Department of Physics, University of Assane Seck, Ziguinchor

出　　处：《Open Journal of Modern Hydrology》2020年第4期81-104,共25页现代水文学期刊（英文）

摘　　要：Management of reservoir water resources requires the knowledge of flow inputs in this reservoir. Hydrological rainfall-runoff model is used for this purpose. There are several types of hydrological model according the description of the hydrological processes: black-box models, conceptual models, deterministic physical based model. SWAT is a semi-distributed hydrological model designed for water quality and quantity. This versatile tool has been used all around the world to assess and manage water resources. The main objective of the paper is to calibrate and validate the SWAT model on the watershed of Bafing located between 10</span><span style="font-family:Verdana;">&deg;30' and 12&deg;30' north latitude and between 12&deg;30'</span><span style="font-family:""> </span><span style="font-family:Verdana;">and 9</span><span style="font-family:Verdana;">&deg;30' west longitude to assess climate change on this river flows. A DEM with a resolution of 12.5</span><span style="font-family:""> </span><span style="font-family:Verdana;">m</span><span style="font-family:""> </span><span style="font-family:Verdana;">×</span><span style="font-family:""> </span><span style="font-family:Verdana;">12.5</span><span style="font-family:""> </span><span style="font-family:Verdana;">m, the daily average flows and the daily observed precipitations on the period 1979-1986 (long period) are used as inputs for the calibration, while precipitations for the period 1988-1994 are used for the validation. The sensitivity analysis was done to detect the most determining coefficients during the calibration step. It shows that 19 parameters are required. Then, the effect of the period on the parameters calibration is checked </span><span style="font-family:Verdana;">by considering </span><span style="font-family:""><span style="font-family:Verdana;">first the whole period of study and then each year of the period of study. The Nash criterion was used to compare the calculated and the observed hygrographs in each case. The results showed that theManagement of reservoir water resources requires the knowledge of flow inputs in this reservoir. Hydrological rainfall-runoff model is used for this purpose. There are several types of hydrological model according the description of the hydrological processes: black-box models, conceptual models, deterministic physical based model. SWAT is a semi-distributed hydrological model designed for water quality and quantity. This versatile tool has been used all around the world to assess and manage water resources. The main objective of the paper is to calibrate and validate the SWAT model on the watershed of Bafing located between 10</span><span style="font-family:Verdana;">&deg;30' and 12&deg;30' north latitude and between 12&deg;30'</span><span style="font-family:""> </span><span style="font-family:Verdana;">and 9</span><span style="font-family:Verdana;">&deg;30' west longitude to assess climate change on this river flows. A DEM with a resolution of 12.5</span><span style="font-family:""> </span><span style="font-family:Verdana;">m</span><span style="font-family:""> </span><span style="font-family:Verdana;">×</span><span style="font-family:""> </span><span style="font-family:Verdana;">12.5</span><span style="font-family:""> </span><span style="font-family:Verdana;">m, the daily average flows and the daily observed precipitations on the period 1979-1986 (long period) are used as inputs for the calibration, while precipitations for the period 1988-1994 are used for the validation. The sensitivity analysis was done to detect the most determining coefficients during the calibration step. It shows that 19 parameters are required. Then, the effect of the period on the parameters calibration is checked </span><span style="font-family:Verdana;">by considering </span><span style="font-family:""><span style="font-family:Verdana;">first the whole period of study and then each year of the period of study. The Nash criterion was used to compare the calculated and the observed hygrographs in each case. The results showed that the

关 键 词：SWAT Hydrological Modelling Senegal River Bafing Makana 

分 类 号：R57[医药卫生—消化系统]