HR: 1340h
AN: H13D-1545    [Abstracts]
TI: Assessment of Stream-Aquifer Interactions Using A Three Dimensional Analytical Solution
AU: * Park, E
EM: egpark@knu.ac.kr
AF: Kyungpook National University, 1370 Sangyeok-dong, Buk-gu, Daegu, 702-701, Korea, Republic of
AU: Cho, J
EM: wooki0000@hanmail.net
AF: Kyungpook National University, 1370 Sangyeok-dong, Buk-gu, Daegu, 702-701, Korea, Republic of
AU: Lee, H
EM: numgh@hanmail.net
AF: Kyungpook National University, 1370 Sangyeok-dong, Buk-gu, Daegu, 702-701, Korea, Republic of
AB: We developed a three-dimensional semi-analytical solution of groundwater flow from an adjacent water body to an aquifer with finite vertical dimension. The developed solution improves previous two-dimensional solution by considering approximated geometry of upper-lying water body which is conventionally over-simplified. The solution is derived based on the method of Green's function where production rule and the method of superposition are used. In the solution, vertical Green's function is derived in the Laplace domain and numerical inversion is applied to estimate the value in time domain. Then convolution is used with time varying source function and Green's functions of horizontal directions. The developed solution can be applied to any hydrological setting such as two neighboring water body with finite conductance (ex. surface-groundwater interactions, two aquifer interactions, impact of canal to surrounding aquifers, etc.). In the analysis using the developed solution shows that interfacial storage is not important in practical applications. Also, we found that early-time responses of aquifers with finite and infinite vertical dimension behave identical.
DE: 1829 Groundwater hydrology
DE: 1830 Groundwater/surface water interaction
DE: 1880 Water management (6334)
SC: Hydrology [H]
MN: 2007 Fall Meeting