The application of conceptual modelling approach to evaluate the impacts of climate change on the future streamflow in three unregulated catchments of the Australian hydrologic reference stations
© 2019 Inderscience Enterprises Ltd. The future climate-change impacts on streamflow variability at three-contributing catchments of the Australian-hydrologic-reference-stations (HRSs), Harvey, Beardy and Goulburn catchments, are presented in this study. Observed hydro-meteorological data from the c...
| Main Authors: | , |
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| Format: | Journal Article |
| Published: |
2019
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| Online Access: | http://hdl.handle.net/20.500.11937/79236 |
| _version_ | 1848764017815846912 |
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| author | Al-Safi, H.I.J. Sarukkalige, Ranjan |
| author_facet | Al-Safi, H.I.J. Sarukkalige, Ranjan |
| author_sort | Al-Safi, H.I.J. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © 2019 Inderscience Enterprises Ltd. The future climate-change impacts on streamflow variability at three-contributing catchments of the Australian-hydrologic-reference-stations (HRSs), Harvey, Beardy and Goulburn catchments, are presented in this study. Observed hydro-meteorological data from the contributing-catchments were used to calibrate and validate the HBV-hydrological-model before the streamflow prediction. The downscaled future rainfall and temperature from a multi-model ensemble of eight-GCMs of the CMIP5 under two representative-concentration-pathways RCP4.5 and RCP8.5 were used to run the calibrated HBV-model to simulate the future daily streamflow at the three-HRSs. Nearly all GCMs predict reduction-tendencies in annual mean rainfall and an increase in temperature and potential evaporation across the studied catchments during the mid (2046-2065) and late (2080-2099) of the 21st-century. The annual mean streamflow across the three-catchments also tend to decrease during the future periods under the two climate scenarios and ranged between 31-60% for the Harvey-catchment, 1-24% for the Beardy-catchment and 18-42% for the Goulburn-catchment relative to the control-run. |
| first_indexed | 2025-11-14T11:12:40Z |
| format | Journal Article |
| id | curtin-20.500.11937-79236 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T11:12:40Z |
| publishDate | 2019 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-792362020-07-29T06:55:49Z The application of conceptual modelling approach to evaluate the impacts of climate change on the future streamflow in three unregulated catchments of the Australian hydrologic reference stations Al-Safi, H.I.J. Sarukkalige, Ranjan © 2019 Inderscience Enterprises Ltd. The future climate-change impacts on streamflow variability at three-contributing catchments of the Australian-hydrologic-reference-stations (HRSs), Harvey, Beardy and Goulburn catchments, are presented in this study. Observed hydro-meteorological data from the contributing-catchments were used to calibrate and validate the HBV-hydrological-model before the streamflow prediction. The downscaled future rainfall and temperature from a multi-model ensemble of eight-GCMs of the CMIP5 under two representative-concentration-pathways RCP4.5 and RCP8.5 were used to run the calibrated HBV-model to simulate the future daily streamflow at the three-HRSs. Nearly all GCMs predict reduction-tendencies in annual mean rainfall and an increase in temperature and potential evaporation across the studied catchments during the mid (2046-2065) and late (2080-2099) of the 21st-century. The annual mean streamflow across the three-catchments also tend to decrease during the future periods under the two climate scenarios and ranged between 31-60% for the Harvey-catchment, 1-24% for the Beardy-catchment and 18-42% for the Goulburn-catchment relative to the control-run. 2019 Journal Article http://hdl.handle.net/20.500.11937/79236 10.1504/IJHST.2019.102913 restricted |
| spellingShingle | Al-Safi, H.I.J. Sarukkalige, Ranjan The application of conceptual modelling approach to evaluate the impacts of climate change on the future streamflow in three unregulated catchments of the Australian hydrologic reference stations |
| title | The application of conceptual modelling approach to evaluate the impacts of climate change on the future streamflow in three unregulated catchments of the Australian hydrologic reference stations |
| title_full | The application of conceptual modelling approach to evaluate the impacts of climate change on the future streamflow in three unregulated catchments of the Australian hydrologic reference stations |
| title_fullStr | The application of conceptual modelling approach to evaluate the impacts of climate change on the future streamflow in three unregulated catchments of the Australian hydrologic reference stations |
| title_full_unstemmed | The application of conceptual modelling approach to evaluate the impacts of climate change on the future streamflow in three unregulated catchments of the Australian hydrologic reference stations |
| title_short | The application of conceptual modelling approach to evaluate the impacts of climate change on the future streamflow in three unregulated catchments of the Australian hydrologic reference stations |
| title_sort | application of conceptual modelling approach to evaluate the impacts of climate change on the future streamflow in three unregulated catchments of the australian hydrologic reference stations |
| url | http://hdl.handle.net/20.500.11937/79236 |