The effect of climate change on streamflow reduction in Murray-Hotham River catchment, Western Australia
This study aimed to model current and future streamflow reduction due to climate change in theMurray-Hotham River catchment of south-west of Western Australia (SWWA). The analysis ofhistorical records in SWWA shows that 19.3% rainfall reduction contributed to 42% streamflow reduction since 1975. The...
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| Format: | Conference Paper |
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International Water Association
2011
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/49106 |
| _version_ | 1848758166268936192 |
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| author | Anwar, Faisal Bari, M. Want, Ryan Islam, Syed |
| author2 | Unlisted |
| author_facet | Unlisted Anwar, Faisal Bari, M. Want, Ryan Islam, Syed |
| author_sort | Anwar, Faisal |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | This study aimed to model current and future streamflow reduction due to climate change in theMurray-Hotham River catchment of south-west of Western Australia (SWWA). The analysis ofhistorical records in SWWA shows that 19.3% rainfall reduction contributed to 42% streamflow reduction since 1975. The LUCICAT hydrological model was calibrated and validated for the study area. Selected 11 GCMs data, downscaled by Bureau of Meteorology’s Statistical Downscaling Method (BoM-SDM) for A2 and B1 emission scenarios, were considered for future simulation of streamflow. Results revealed that rainfall is projected 12.67% decline by 2055 and 23% decline by 2090 and the streamflow is projected 57.8% decline by 2055 and 84.8% decline by 2090 respectively under A2 scenario. But under B1 scenario, rainfall is projected 10.6% decline by 2055 and remains relatively constant until 2090 but the streamflow shows reduction of 49.1% and 59.1% by 2055 and 2090 respectively. Despite the limitation of the modelling study, the results forecast a dramatic streamflow reduction in Murray-Hotham River catchment by the end of the current century. These findings may be used by water resource managers in conjunction with other strategies to plan for future stability of the water catchments in SWWA. |
| first_indexed | 2025-11-14T09:39:40Z |
| format | Conference Paper |
| id | curtin-20.500.11937-49106 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:39:40Z |
| publishDate | 2011 |
| publisher | International Water Association |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-491062017-05-12T03:51:44Z The effect of climate change on streamflow reduction in Murray-Hotham River catchment, Western Australia Anwar, Faisal Bari, M. Want, Ryan Islam, Syed Unlisted Reduction Rainfall Climate change Streamflow Modelling This study aimed to model current and future streamflow reduction due to climate change in theMurray-Hotham River catchment of south-west of Western Australia (SWWA). The analysis ofhistorical records in SWWA shows that 19.3% rainfall reduction contributed to 42% streamflow reduction since 1975. The LUCICAT hydrological model was calibrated and validated for the study area. Selected 11 GCMs data, downscaled by Bureau of Meteorology’s Statistical Downscaling Method (BoM-SDM) for A2 and B1 emission scenarios, were considered for future simulation of streamflow. Results revealed that rainfall is projected 12.67% decline by 2055 and 23% decline by 2090 and the streamflow is projected 57.8% decline by 2055 and 84.8% decline by 2090 respectively under A2 scenario. But under B1 scenario, rainfall is projected 10.6% decline by 2055 and remains relatively constant until 2090 but the streamflow shows reduction of 49.1% and 59.1% by 2055 and 2090 respectively. Despite the limitation of the modelling study, the results forecast a dramatic streamflow reduction in Murray-Hotham River catchment by the end of the current century. These findings may be used by water resource managers in conjunction with other strategies to plan for future stability of the water catchments in SWWA. 2011 Conference Paper http://hdl.handle.net/20.500.11937/49106 International Water Association restricted |
| spellingShingle | Reduction Rainfall Climate change Streamflow Modelling Anwar, Faisal Bari, M. Want, Ryan Islam, Syed The effect of climate change on streamflow reduction in Murray-Hotham River catchment, Western Australia |
| title | The effect of climate change on streamflow reduction in Murray-Hotham River catchment, Western Australia |
| title_full | The effect of climate change on streamflow reduction in Murray-Hotham River catchment, Western Australia |
| title_fullStr | The effect of climate change on streamflow reduction in Murray-Hotham River catchment, Western Australia |
| title_full_unstemmed | The effect of climate change on streamflow reduction in Murray-Hotham River catchment, Western Australia |
| title_short | The effect of climate change on streamflow reduction in Murray-Hotham River catchment, Western Australia |
| title_sort | effect of climate change on streamflow reduction in murray-hotham river catchment, western australia |
| topic | Reduction Rainfall Climate change Streamflow Modelling |
| url | http://hdl.handle.net/20.500.11937/49106 |