HR: 0800h
AN: H11D-0329    [Abstracts]
TI: On the Possibility of Using River Stage Tomography to Characterize the Aquifer Properties of the Choshuishi Alluvial Fan, Taiwan
AU: Yeh, T J
EM: ybiem@mac.hwr.arizona.edu
AF: Department of Hydrology and Water Resources, The University of Arizona, Department of Hydrology and Water Resources, The University of Arizona, Tucson, 85721 United States
AU: * Hsu, K
EM: kchsu@mail.ncku.edu.tw
AF: Department of Resources Engineering, National Cheng-Kung University, Department of Resources Engineering, National Cheng-Kung University, Tainan, 64045 Taiwan
AU: Lee, C
EM: leech@mail.ncku.edu.tw
AF: Department of Resources Engineering, National Cheng-Kung University, Department of Resources Engineering, National Cheng-Kung University, Tainan, 64045 Taiwan
AU: Wen, J
EM: wenjc@pine.yuntech.edu.tw
AF: Department of Environmental and Safety Engineering, National Yunlin University of Science and Technology, Department of Environmental and Safety Engineering, National Yunlin University, Yunlin, 64045 Taiwan
AU: Ting, C
EM: csting@mail.npust.edu.tw
AF: Department of Civil Engineering, National Pingtung University of Science and Technology, Department of Civil Engineering, National Pingtung University of Science and Technology, Pingtung, 91207 Taiwan
AB: The fluctuations of groundwater level in a well can be caused by a flood propagating in nearby river due to the interaction of groundwater and surface water. Flood can serve as a natural stimulus without extra manmade excitation for a hydraulic test. Using the time series of groundwater level variation in a well with a known hydrograph of rive stage, the property of the subsurface is possible to be calculated by either deterministic or stochastic approach. The approach can be applied to wells in different locations and explore the spatial distribution of aquifer properties. In this study, the data of groundwater level for wells located from upstream to downstream of Choshu River were analyzed. The correlation between the groundwater fluctuation and river stage are investigated. We explore the possibility of using river stage tomograph as a tool in obtaining aquifer properties.
DE: 1821 Floods
DE: 1829 Groundwater hydrology
SC: Hydrology [H]
MN: 2004 AGU Fall Meeting