Assessment of sedimentation in Tuli – Makwe Dam using remotely sensed data
A remote sensing approach was used to assess sedimentation in Tuli-Makwe Dam in the semi-arid Mzingwane Catchment in the Matebeleland South province of Zimbabwe. The loss in reservoir gross capacity due to sediment deposition for a period of 47 years since the construction of the dam in 1966 to 2...
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| Language: | English |
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Academic Journals
2023
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| Online Access: | https://cris.library.msu.ac.zw//handle/11408/5611 |
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| author | Elvis Tawanda Mupfiga Richard Munkwakwata Bester Mudereri Upenyu Naume Nyatondo |
| author2 | Department of Land and Water Resources Management, Faculty of Natural Resources Management and Agriculture, Midlands State University, P Bag 9055, Gweru, Zimbabwe |
| author_facet | Department of Land and Water Resources Management, Faculty of Natural Resources Management and Agriculture, Midlands State University, P Bag 9055, Gweru, Zimbabwe Elvis Tawanda Mupfiga Richard Munkwakwata Bester Mudereri Upenyu Naume Nyatondo |
| author_sort | Elvis Tawanda Mupfiga |
| collection | DSpace |
| description | A remote sensing approach was used to assess sedimentation in Tuli-Makwe Dam in the semi-arid
Mzingwane Catchment in the Matebeleland South province of Zimbabwe. The loss in reservoir gross
capacity due to sediment deposition for a period of 47 years since the construction of the dam in 1966
to 2013 was determined to be 3.371 Mm3 which translate to 40.84 % gross capacity loss. The revised
capacity of the dam is estimated at 4.883 Mm3. The annual rate of sedimentation was calculated to be
0.87 % per annum which translates to 0.0717 Mm3 per annum. The specific sediment yield over Tuli-
Makwe catchment was calculated to be 110.63 tonnes / km2 / year. The result of the sedimentation
analysis is typical of small reservoirs in semi-arid regions in Southern Africa. The sedimentation results
for Tuli-Makwe reservoir using the remote sensing approach for 2013 are comparable with the
sedimentation results from the 2012 hydrographic survey. The results further confirm the applicability
of remote sensing for sedimentation analysis for small reservoirs in semi-arid regions. Assuming a
uniform sedimentation rate, current trends suggest that Tuli-Makwe reservoir may be filled up in the
next sixty eight years from 2013, however the useful capacity of the reservoir may be lost in much less
time. |
| format | research article |
| id | ir-11408-5611 |
| institution | My University |
| language | English |
| publishDate | 2023 |
| publisher | Academic Journals |
| record_format | dspace |
| spelling | ir-11408-56112023-05-05T06:45:33Z Assessment of sedimentation in Tuli – Makwe Dam using remotely sensed data Elvis Tawanda Mupfiga Richard Munkwakwata Bester Mudereri Upenyu Naume Nyatondo Department of Land and Water Resources Management, Faculty of Natural Resources Management and Agriculture, Midlands State University, P Bag 9055, Gweru, Zimbabwe Department of Land and Water Resources Management, Faculty of Natural Resources Management and Agriculture, Midlands State University, P Bag 9055, Gweru, Zimbabwe Department of Livestock and Wildlife Management, Faculty of Natural Resources Management and Agriculture, Midlands State University, P Bag 9055, Gweru, Zimbabwe. Department of Environmental Science and Technology, Chinhoyi University of Technology, Private Bag 7724, Chinhoyi, Zimbabwe. Reservoir sedimentation Remote sensing Reservoir capacity loss A remote sensing approach was used to assess sedimentation in Tuli-Makwe Dam in the semi-arid Mzingwane Catchment in the Matebeleland South province of Zimbabwe. The loss in reservoir gross capacity due to sediment deposition for a period of 47 years since the construction of the dam in 1966 to 2013 was determined to be 3.371 Mm3 which translate to 40.84 % gross capacity loss. The revised capacity of the dam is estimated at 4.883 Mm3. The annual rate of sedimentation was calculated to be 0.87 % per annum which translates to 0.0717 Mm3 per annum. The specific sediment yield over Tuli- Makwe catchment was calculated to be 110.63 tonnes / km2 / year. The result of the sedimentation analysis is typical of small reservoirs in semi-arid regions in Southern Africa. The sedimentation results for Tuli-Makwe reservoir using the remote sensing approach for 2013 are comparable with the sedimentation results from the 2012 hydrographic survey. The results further confirm the applicability of remote sensing for sedimentation analysis for small reservoirs in semi-arid regions. Assuming a uniform sedimentation rate, current trends suggest that Tuli-Makwe reservoir may be filled up in the next sixty eight years from 2013, however the useful capacity of the reservoir may be lost in much less time. 7 12 230 238 2023-05-05T06:45:33Z 2023-05-05T06:45:33Z 2016-12 research article https://cris.library.msu.ac.zw//handle/11408/5611 10.5897/JSSEM2016.0563 en Journal of Soil Science and Environmental Management 2141-2391 open Academic Journals |
| spellingShingle | Reservoir sedimentation Remote sensing Reservoir capacity loss Elvis Tawanda Mupfiga Richard Munkwakwata Bester Mudereri Upenyu Naume Nyatondo Assessment of sedimentation in Tuli – Makwe Dam using remotely sensed data |
| title | Assessment of sedimentation in Tuli – Makwe Dam using remotely sensed data |
| title_full | Assessment of sedimentation in Tuli – Makwe Dam using remotely sensed data |
| title_fullStr | Assessment of sedimentation in Tuli – Makwe Dam using remotely sensed data |
| title_full_unstemmed | Assessment of sedimentation in Tuli – Makwe Dam using remotely sensed data |
| title_short | Assessment of sedimentation in Tuli – Makwe Dam using remotely sensed data |
| title_sort | assessment of sedimentation in tuli – makwe dam using remotely sensed data |
| topic | Reservoir sedimentation Remote sensing Reservoir capacity loss |
| url | https://cris.library.msu.ac.zw//handle/11408/5611 |
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