Climate change impact on hydro-climatic variables of Ribb watershed, Tana sub-basin, Ethiopia
Abstract In Ethiopia, the Ribb River is one of the tributaries of the Lake Tana sub-basin. Temperature, precipitation, and streamflow would all be affected by climate change in the Ribb watershed. As a result of the disruption of regular hydrological processes, these climate changes have an impact o...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2022-12-01
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| Series: | Applied Water Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/s13201-022-01842-w |
| _version_ | 1828083235503996928 |
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| author | Diress Yigezu Tenagashaw Tesfa Gebrie Andualem Workineh Tadesse Ayele Amanuel Zewdu Belew |
| author_facet | Diress Yigezu Tenagashaw Tesfa Gebrie Andualem Workineh Tadesse Ayele Amanuel Zewdu Belew |
| author_sort | Diress Yigezu Tenagashaw |
| collection | DOAJ |
| description | Abstract In Ethiopia, the Ribb River is one of the tributaries of the Lake Tana sub-basin. Temperature, precipitation, and streamflow would all be affected by climate change in the Ribb watershed. As a result of the disruption of regular hydrological processes, these climate changes have an impact on water resources. The goal of this study was to look into the effects of climate change on the Ribb watershed’s hydro-climatic characteristics. The forecasted climatic data for rainfall and temperature (minimum and maximum) came from the CORDEX (Coordinated Regional Climate Downscaling Experiments) Africa database. Climate change consequences were investigated using RCP 4.5 emission scenarios for the 2021–2060 time range, compared to the 1985–2005 baselines. The observed precipitation and temperature data were used to adjust for bias. The simulation of stream flow was carried out using the semi-distributed and physically based soil and water assessment tool (SWAT). From 1997 to 2003, the model was calibrated, and from 2004 to 2007, it was validated. To determine the trend of the climate variables, trend test analyses were performed on the various time series data. In all of the experiments conducted, the trend test revealed that historical and forecast precipitation recording stations showed statistically negligible trends for all critical values. At a level of 0.05, the historical and prospective maximum and minimum temperature data revealed increasing patterns. In general, the results demonstrated that meteorological conditions cause the flow to decrease over the season. As a result, climate change will have an impact on the Ribb watersheds water resources. |
| first_indexed | 2024-04-11T04:05:08Z |
| format | Article |
| id | doaj.art-5781f04c2def4588947c5ce1968d57a9 |
| institution | Directory Open Access Journal |
| issn | 2190-5487 2190-5495 |
| language | English |
| last_indexed | 2024-04-11T04:05:08Z |
| publishDate | 2022-12-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Applied Water Science |
| spelling | doaj.art-5781f04c2def4588947c5ce1968d57a92023-01-01T12:24:33ZengSpringerOpenApplied Water Science2190-54872190-54952022-12-0113211210.1007/s13201-022-01842-wClimate change impact on hydro-climatic variables of Ribb watershed, Tana sub-basin, EthiopiaDiress Yigezu Tenagashaw0Tesfa Gebrie Andualem1Workineh Tadesse Ayele2Amanuel Zewdu Belew3Department of Hydraulic and Water Resources Engineering, Debre Tabor UniversityDepartment of Hydraulic and Water Resources Engineering, Debre Tabor UniversityDepartment of Hydraulic and Water Resources Engineering, Debre Tabor UniversityDepartment of Hydraulic and Water Resources Engineering, Debre Tabor UniversityAbstract In Ethiopia, the Ribb River is one of the tributaries of the Lake Tana sub-basin. Temperature, precipitation, and streamflow would all be affected by climate change in the Ribb watershed. As a result of the disruption of regular hydrological processes, these climate changes have an impact on water resources. The goal of this study was to look into the effects of climate change on the Ribb watershed’s hydro-climatic characteristics. The forecasted climatic data for rainfall and temperature (minimum and maximum) came from the CORDEX (Coordinated Regional Climate Downscaling Experiments) Africa database. Climate change consequences were investigated using RCP 4.5 emission scenarios for the 2021–2060 time range, compared to the 1985–2005 baselines. The observed precipitation and temperature data were used to adjust for bias. The simulation of stream flow was carried out using the semi-distributed and physically based soil and water assessment tool (SWAT). From 1997 to 2003, the model was calibrated, and from 2004 to 2007, it was validated. To determine the trend of the climate variables, trend test analyses were performed on the various time series data. In all of the experiments conducted, the trend test revealed that historical and forecast precipitation recording stations showed statistically negligible trends for all critical values. At a level of 0.05, the historical and prospective maximum and minimum temperature data revealed increasing patterns. In general, the results demonstrated that meteorological conditions cause the flow to decrease over the season. As a result, climate change will have an impact on the Ribb watersheds water resources.https://doi.org/10.1007/s13201-022-01842-wClimate changeCORDEX-AfricaSWATHydro-climatic variables |
| spellingShingle | Diress Yigezu Tenagashaw Tesfa Gebrie Andualem Workineh Tadesse Ayele Amanuel Zewdu Belew Climate change impact on hydro-climatic variables of Ribb watershed, Tana sub-basin, Ethiopia Applied Water Science Climate change CORDEX-Africa SWAT Hydro-climatic variables |
| title | Climate change impact on hydro-climatic variables of Ribb watershed, Tana sub-basin, Ethiopia |
| title_full | Climate change impact on hydro-climatic variables of Ribb watershed, Tana sub-basin, Ethiopia |
| title_fullStr | Climate change impact on hydro-climatic variables of Ribb watershed, Tana sub-basin, Ethiopia |
| title_full_unstemmed | Climate change impact on hydro-climatic variables of Ribb watershed, Tana sub-basin, Ethiopia |
| title_short | Climate change impact on hydro-climatic variables of Ribb watershed, Tana sub-basin, Ethiopia |
| title_sort | climate change impact on hydro climatic variables of ribb watershed tana sub basin ethiopia |
| topic | Climate change CORDEX-Africa SWAT Hydro-climatic variables |
| url | https://doi.org/10.1007/s13201-022-01842-w |
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