Evaluating water availability under changing climate scenarios in the Woybo catchment, Ethiopia
This study aims to evaluate water availability under changing climate scenarios in the Woybo catchment, Ethiopia. The bias-corrected outputs of multiple climate models’ ensemble mean were employed for the 2050 and 2080s against the reference period (1976–2005) under representative concentration path...
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| Format: | Article |
| Language: | English |
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IWA Publishing
2022-11-01
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| Series: | Journal of Water and Climate Change |
| Subjects: | |
| Online Access: | http://jwcc.iwaponline.com/content/13/11/4130 |
| _version_ | 1811212848914759680 |
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| author | Tigistu Yisihak Ukumo Muluneh Legesse Edamo Dawit Midagsa Abdi Melkamu Ateka Derebe |
| author_facet | Tigistu Yisihak Ukumo Muluneh Legesse Edamo Dawit Midagsa Abdi Melkamu Ateka Derebe |
| author_sort | Tigistu Yisihak Ukumo |
| collection | DOAJ |
| description | This study aims to evaluate water availability under changing climate scenarios in the Woybo catchment, Ethiopia. The bias-corrected outputs of multiple climate models’ ensemble mean were employed for the 2050 and 2080s against the reference period (1976–2005) under representative concentration pathways (RCPs) for both RCP4.5 and RCP8.5 scenarios. A semi-distributed physically based Hydrologic Engineering Center of Hydrologic Modeling System (HEC-HMS) was used to perform rainfall–runoff simulation. The projected rainfall and temperatures of the watershed will increase in the far future. The predictions from ensemble means of multiple climate models indicated that rainfall of the watershed will likely increase by 25% in the 2050s and 19% in the 2080s under RCP4.5 and RCP8.5, respectively. The discharge projection for the ensemble mean of all climate models shows an increment up to 20 and 19% under RCP 4.5 and RCP8.5, respectively, in the 2050s, whereas it will decline up to 15 and 28% in 2080s, under RCP4.5 and RCP8.5, respectively. This research plays a great role to reduce the impacts of changing climate for sustainable water resources management.
HIGHLIGHT
The output of this research plays a great role to reduce the impacts of changing climate for sustainable water resources management.;
The ensemble mean of five climate models was employed in this study to analyze the impact on water availability.;
A multiple climate model’s ensemble reduces uncertainty regarding the relative strengths and weaknesses of a single climate model.; |
| first_indexed | 2024-04-12T05:36:11Z |
| format | Article |
| id | doaj.art-f907c4d9cf7846a4a8c31f85c54bdbda |
| institution | Directory Open Access Journal |
| issn | 2040-2244 2408-9354 |
| language | English |
| last_indexed | 2024-04-12T05:36:11Z |
| publishDate | 2022-11-01 |
| publisher | IWA Publishing |
| record_format | Article |
| series | Journal of Water and Climate Change |
| spelling | doaj.art-f907c4d9cf7846a4a8c31f85c54bdbda2022-12-22T03:45:51ZengIWA PublishingJournal of Water and Climate Change2040-22442408-93542022-11-0113114130414910.2166/wcc.2022.343343Evaluating water availability under changing climate scenarios in the Woybo catchment, EthiopiaTigistu Yisihak Ukumo0Muluneh Legesse Edamo1Dawit Midagsa Abdi2Melkamu Ateka Derebe3 FWRIE, Arba Minch University, Arba Minch, Ethiopia FHWRE, Arba Minch University, Arba Minch, Ethiopia FHWRE, Arba Minch University, Arba Minch, Ethiopia FWRIE, Arba Minch University, Arba Minch, Ethiopia This study aims to evaluate water availability under changing climate scenarios in the Woybo catchment, Ethiopia. The bias-corrected outputs of multiple climate models’ ensemble mean were employed for the 2050 and 2080s against the reference period (1976–2005) under representative concentration pathways (RCPs) for both RCP4.5 and RCP8.5 scenarios. A semi-distributed physically based Hydrologic Engineering Center of Hydrologic Modeling System (HEC-HMS) was used to perform rainfall–runoff simulation. The projected rainfall and temperatures of the watershed will increase in the far future. The predictions from ensemble means of multiple climate models indicated that rainfall of the watershed will likely increase by 25% in the 2050s and 19% in the 2080s under RCP4.5 and RCP8.5, respectively. The discharge projection for the ensemble mean of all climate models shows an increment up to 20 and 19% under RCP 4.5 and RCP8.5, respectively, in the 2050s, whereas it will decline up to 15 and 28% in 2080s, under RCP4.5 and RCP8.5, respectively. This research plays a great role to reduce the impacts of changing climate for sustainable water resources management. HIGHLIGHT The output of this research plays a great role to reduce the impacts of changing climate for sustainable water resources management.; The ensemble mean of five climate models was employed in this study to analyze the impact on water availability.; A multiple climate model’s ensemble reduces uncertainty regarding the relative strengths and weaknesses of a single climate model.;http://jwcc.iwaponline.com/content/13/11/4130climate changehec-hmsrcpwater availabilitywoybo watershed |
| spellingShingle | Tigistu Yisihak Ukumo Muluneh Legesse Edamo Dawit Midagsa Abdi Melkamu Ateka Derebe Evaluating water availability under changing climate scenarios in the Woybo catchment, Ethiopia Journal of Water and Climate Change climate change hec-hms rcp water availability woybo watershed |
| title | Evaluating water availability under changing climate scenarios in the Woybo catchment, Ethiopia |
| title_full | Evaluating water availability under changing climate scenarios in the Woybo catchment, Ethiopia |
| title_fullStr | Evaluating water availability under changing climate scenarios in the Woybo catchment, Ethiopia |
| title_full_unstemmed | Evaluating water availability under changing climate scenarios in the Woybo catchment, Ethiopia |
| title_short | Evaluating water availability under changing climate scenarios in the Woybo catchment, Ethiopia |
| title_sort | evaluating water availability under changing climate scenarios in the woybo catchment ethiopia |
| topic | climate change hec-hms rcp water availability woybo watershed |
| url | http://jwcc.iwaponline.com/content/13/11/4130 |
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