Advertisement

Derivation of 2-D Flow Lines from Water Table Data in Heterogeneous Aquifer by Developing Specific Finite Difference Method Programs

  • Samuel Sangwon Lee
Conference paper
Part of the Proceedings in Information and Communications Technology book series (PICT, volume 4)

Abstract

This study makes it possible to draw conclusions about the configuration of regional groundwater systems by using a numerical model. The model uses finite difference numerical method commonly used to investigate saturated groundwater flow system. A two-dimensional (2-D) vertical cross-section is used in the model because it is useful to conceptualize the flow system, determine reasonable ranges of aquifer parameters, assets model boundaries, and to determine the most influential parameters in the system. Details of steady-state flow in regional groundwater basins can be investigated using specific numerical model simulations of finite difference method (FDM). The developed programs were run to evaluate the factors that control the interaction of bay and groundwater. The study concerns only with bay encircled by water table mounds that are at a higher altitude in vertical section show that for typical hydrogelogic settings, the line (divide) separating the local from the regional groundwater flow systems in continuous beneath bay. Bay bottom sediments are considered this study flow net. Two cases of aquifer hydraulic conductivity (K a1 = 100 ft/day, K a2 = 50 ft/day) and bay sediments hydraulic conductivity (K b = 5 ft/day) are assumed in this study.

Keywords

Modeling Methodology Numerical Simulation General Engineering Groundwater 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Franz, T., Guiguer, N.: FLOWPATH, two-dimensional horizontal aquifer simulation model. In: Waterloo Hydrogeologic Software, Waterloo, Ontario, p. 74 (1990)Google Scholar
  2. 2.
    Hill, M.C.: MODFLOWP: A computer program for estimating parameters of a transient, three-dimensional groundwater flow model using nonlinear regression. USGS, Open-File Report, p. 317 (1990)Google Scholar
  3. 3.
    Carrera, J., Neuman, S.P.: Estimation of aquifer parameters under transient and steady state conditions. 1, 2, 3, Water Resources Research 22(2), 199–242 (1986a, 1986b, 1986c)Google Scholar
  4. 4.
    Urish, D.W., Ozbilgin, M.M.: The coastal groundwater boundary. Ground Water 27(3), 310–315 (1988)CrossRefGoogle Scholar
  5. 5.
    Toth, J.: A theory of groundwater motion in small drainage basins in cebtral Alberta. J. Geophys. Res. 67, 4375–4387 (1962)CrossRefGoogle Scholar
  6. 6.
    Toth, J.: A theoretical analysis of groundwater flow in small drainage basins. J. Geophys. Res. 67, 4795–4812 (1963)Google Scholar

Copyright information

© Springer Tokyo 2012

Authors and Affiliations

  • Samuel Sangwon Lee
    • 1
  1. 1.Federal Energy Regulatory CommissionSan Francisco Regional OfficeSan FranciscoUSA

Personalised recommendations