Hydrological modeling of the Simly Dam watershed (Pakistan) using GIS and SWAT model
Modern mathematical models have been developed for studying the complex hydrological processes of a watershed and their direct relation to weather, topography, geology and land use. In this study the hydrology of Simly Dam watershed located in Saon River basin at the north-east of Islamabad is model...
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| Format: | Article |
| Language: | English |
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Elsevier
2015-09-01
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| Series: | Alexandria Engineering Journal |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1110016815000903 |
| _version_ | 1819087704607948800 |
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| author | Shimaa M. Ghoraba |
| author_facet | Shimaa M. Ghoraba |
| author_sort | Shimaa M. Ghoraba |
| collection | DOAJ |
| description | Modern mathematical models have been developed for studying the complex hydrological processes of a watershed and their direct relation to weather, topography, geology and land use. In this study the hydrology of Simly Dam watershed located in Saon River basin at the north-east of Islamabad is modeled, using the Soil and Water Assessment Tool (SWAT). It aims to simulate the stream flow, establish the water balance and estimate the monthly volume inflow to Simly Dam in order to help the managers to plan and handle this important reservoir. The ArcSWAT interface implemented in the ArcGIS software was used to delineate the study area and its sub-components, combine the data layers and edit the model database. The model was calibrated from 1990 to 2001 and evaluated from 2002 to 2011. Based on four recommended statistical coefficients, the evaluation indicates a good performance for both calibration and validation periods and acceptable agreement between measured and simulated values of both annual and monthly scale discharge. The water balance components were correctly estimated and the Simly Dam inflow was successfully reproduced with Coefficient of Determination (R2) of 0.75. These results revealed that if properly calibrated, SWAT model can be used efficiently in semi-arid regions to support water management policies. |
| first_indexed | 2024-12-21T21:40:23Z |
| format | Article |
| id | doaj.art-40033bd0a7904ee581d0505070ef7535 |
| institution | Directory Open Access Journal |
| issn | 1110-0168 |
| language | English |
| last_indexed | 2024-12-21T21:40:23Z |
| publishDate | 2015-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Alexandria Engineering Journal |
| spelling | doaj.art-40033bd0a7904ee581d0505070ef75352022-12-21T18:49:22ZengElsevierAlexandria Engineering Journal1110-01682015-09-0154358359410.1016/j.aej.2015.05.018Hydrological modeling of the Simly Dam watershed (Pakistan) using GIS and SWAT modelShimaa M. GhorabaModern mathematical models have been developed for studying the complex hydrological processes of a watershed and their direct relation to weather, topography, geology and land use. In this study the hydrology of Simly Dam watershed located in Saon River basin at the north-east of Islamabad is modeled, using the Soil and Water Assessment Tool (SWAT). It aims to simulate the stream flow, establish the water balance and estimate the monthly volume inflow to Simly Dam in order to help the managers to plan and handle this important reservoir. The ArcSWAT interface implemented in the ArcGIS software was used to delineate the study area and its sub-components, combine the data layers and edit the model database. The model was calibrated from 1990 to 2001 and evaluated from 2002 to 2011. Based on four recommended statistical coefficients, the evaluation indicates a good performance for both calibration and validation periods and acceptable agreement between measured and simulated values of both annual and monthly scale discharge. The water balance components were correctly estimated and the Simly Dam inflow was successfully reproduced with Coefficient of Determination (R2) of 0.75. These results revealed that if properly calibrated, SWAT model can be used efficiently in semi-arid regions to support water management policies.http://www.sciencedirect.com/science/article/pii/S1110016815000903Watershed modelSimly DamGISSWATCalibrationWater balance |
| spellingShingle | Shimaa M. Ghoraba Hydrological modeling of the Simly Dam watershed (Pakistan) using GIS and SWAT model Alexandria Engineering Journal Watershed model Simly Dam GIS SWAT Calibration Water balance |
| title | Hydrological modeling of the Simly Dam watershed (Pakistan) using GIS and SWAT model |
| title_full | Hydrological modeling of the Simly Dam watershed (Pakistan) using GIS and SWAT model |
| title_fullStr | Hydrological modeling of the Simly Dam watershed (Pakistan) using GIS and SWAT model |
| title_full_unstemmed | Hydrological modeling of the Simly Dam watershed (Pakistan) using GIS and SWAT model |
| title_short | Hydrological modeling of the Simly Dam watershed (Pakistan) using GIS and SWAT model |
| title_sort | hydrological modeling of the simly dam watershed pakistan using gis and swat model |
| topic | Watershed model Simly Dam GIS SWAT Calibration Water balance |
| url | http://www.sciencedirect.com/science/article/pii/S1110016815000903 |
| work_keys_str_mv | AT shimaamghoraba hydrologicalmodelingofthesimlydamwatershedpakistanusinggisandswatmodel |