HR: 1340h
AN: H23F-1674    [Abstracts]
TI: Reservoir Systems in Changing Climate
AU: * Lien, W
EM: d93622005@ntu.edu.tw
AF: Wan-Yu Lien, No. 1, Sec. 4, Roosevelt Road, Taipei, 10617, Taiwan
AU: Tung, C
EM: cptung@ntu.edu.tw
AF: Wan-Yu Lien, No. 1, Sec. 4, Roosevelt Road, Taipei, 10617, Taiwan
AU: Tai, C
EM: greenblueyes514@yahoo.com.tw
AB: Climate change may cause more climate variability and further results in more frequent extreme hydrological events which may greatly influence reservoirˇ¦s abilities to provide service, such as water supply and flood mitigation, and even danger reservoirˇ¦s safety. Some local studies have identified that climate change may cause more flood in wet period and less flow in dry period in Taiwan. To mitigate climate change impacts, more reservoir space, i.e. less storage, may be required to store higher flood in wet periods, while more reservoir storage may be required to supply water for dry periods. The goals to strengthen adaptive capacity of water supply and flood mitigation are conflict under climate change. This study will focus on evaluating the impacts of climate change on reservoir systems. The evaluation procedure includes hydrological models, a reservoir water balance model, and a water supply system dynamics model. The hydrological models are used to simulate reservoir inflows under different climate conditions. Future climate scenarios are derived from several GCMs. Then, the reservoir water balance model is developed to calculate reservoirˇ¦s storage and outflows according to the simulated inflows and operational rules. The ability of flood mitigation is also evaluated. At last, those outflows are further input to the system dynamics model to assess whether the goal of water supply can still be met. To mitigate climate change impacts, the implementing adaptation strategies will be suggested with the principles of risk management. Besides, uncertainties of this study will also be analyzed. The Feitsui reservoir system in northern Taiwan is chosen as a case study.
DE: 1807 Climate impacts
DE: 1808 Dams
DE: 1816 Estimation and forecasting
DE: 1880 Water management (6334)
SC: Hydrology [H]
MN: 2007 Fall Meeting