Global climate change is remarkably changing the climatic patterns of the Pearl River basin and are significantly impacting the hydrological processes. Projection of future climate change impacts on steamflow variation is potential to provide scientific guidelines for sustainable water resources management and effective prevention and control for flood and drought disasters. In this study, a hydrological modeling system for assessing climate change impacts on runoffin the Pearl River basin was established and were used to simulate historical hydrological process and to project future streamflow variations under certain emission scenarios. Subsequently, the impacts of different delta-change methods on the projected changes in future streamflow were quantified. Furthermore, a bootstrapping resample approach was developed to test the significance of changes of streamflow variability and extremes in response to future climate change.
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