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Investigation Of The Spatial And Temporal Variation Of Sediment Yield And Surface Runoff In Offa Watershed, Kwara State
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1.4 JUSTIFICATION
The Spatial and temporal variation of sediment yield and runoff in the catchment area can serve as a decision support tools to water managers in the area to plan a sustainable management of the water shed.
1.5 SCOPE OF STUDY
The scope of the work was limited to the study of temporal variation of sediment using temporal data of 31years from 1986 to 2016. the analysis was based on preliminary modeling results obtained from digital elevation model (DEM) land use and soil map to predict the optimum variation of sediment yield and runoff generation in Offa water shed.
1.6 DESCRIPTION OF STUDY AREA
Offa water shed is located in offa local government area of kwara state Nigeria. It is one of the main water supply in its locality, it is about 43km from Ilorin the capital of kwara state it fall within the latitude 8.1393o N and 4.71740 E. The map is shown in figure 1.1-1.3
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ABSRACT - [ Total Page(s): 1 ]ABSTRACTIn this research, an hydrological modelling tool, soil and water assessment tool (SWAT) used to investigate the spatial and temporal variation of sediment yield in a watershed. The model was run for 31years using spatial data such as Digital Elevation Model, soil map, land use and precipitation, wind and solar radiation. The results showed that the maximum value of surface Runoff was estimated as 19100.034mm in the year 2005 while the minimum surface Runoff was 1000.671mm in the year 200 ... Continue reading---
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ABSRACT - [ Total Page(s): 1 ]ABSTRACTIn this research, an hydrological modelling tool, soil and water assessment tool (SWAT) used to investigate the spatial and temporal variation of sediment yield in a watershed. The model was run for 31years using spatial data such as Digital Elevation Model, soil map, land use and precipitation, wind and solar radiation. The results showed that the maximum value of surface Runoff was estimated as 19100.034mm in the year 2005 while the minimum surface Runoff was 1000.671mm in the year 200 ... Continue reading---