HR: 0800h
AN: H11F-0844    [Abstracts]
TI: The Impact of the Climate Change on Taipei Groundwater Resources
AU: * Tan, c
EM: d92622008@ntu.edu.tw
AF: National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, TWN 10617, Taiwan
AU: Tung, c
EM: cptung@ntu.edu.tw
AF: National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, TWN 10617, Taiwan
AB: Climate change has become a serious issue around the world. The variate of precipitation and temperature will influence both streamflows and the recharge of groundwater, which may further influence the availability of water resources. In this paper, we propose a methodology to evaluate the impact of the climate change on groundwater resources. The methodology includes two simulation models, the GWLF model and MODFLOW, and two heuristic algorithms, respectively. The GWLF model and MODFLOW are used to simulate streamflows and groundwater, respectively. The simulated annealing algorithm is applied to identify the historical recharge rate and then the genetic programming is used to construct functions describing relationships between streamflows and the identified recharge rate. To evaluate the climate change impacts on groundwater, streamflows are simulated first based on different climate scenarios which are derived from GCMs. The simulated streamflows are then applied to estimate the recharge rates and furthermore the impacts on groundwater can be evaluated. The Taipei basin, which is an important groundwater aquifer in North Taiwan, is chosen as a study site to verify the proposed methodology. Our results evaluate the impact of climate change on groundwater resources and can provide the useful information for the future conjuncted use of surface and groundwater resources to strengthen adaptive capacity for water resources management.
DE: 1807 Climate impacts
DE: 1829 Groundwater hydrology
DE: 1846 Model calibration (3333)
DE: 1860 Streamflow
SC: Hydrology [H]
MN: 2007 Fall Meeting