Akademik Veri Yönetim Sistemi
First International Conference on Saltwater Intrusion and Coastal Aquifers Monitoring, Modeling, and Management,, Fas, Fas, 23 - 25 Nisan 2001, cilt.1, sa.72, ss.1-10
An optimization model was developed to manage the supplemental use of
groundwater in the coastal aquifer subject to saltwater intrusion in the Goksu Delta at
Silifke, Turkey. The response of the aquifer system was linked to the optimization
model using the response matrix method. A calibrated groundwater simulation model
using the SUTRA (Saturated-Unsaturated Transport) code was run to generate aquifer
response coefficients at specific well locations. It was assumed that pumping occurs
from two wells, and a linear optimization model was constructed under steady-state
conditions to maximize the total pumping rates from these two wells subject to water
demands and chloride concentration and drawdown limitations. The model was
solved for five levels of chloride concentration limits to develop an optimal pumping
strategy for the different chloride concentration levels. To verify the optimization
model, hydraulic heads and chloride concentrations estimated by the optimization
model were compared with those computed by the simulation model. The GAMS
(General Algebraic Modeling System) code was used to execute the optimization
model. A trade-off curve was constructed at the conclusion of the study that shows
the change in maximum pumping rate with respect to the different chloride
concentration levels. After plotting the results of both the simulation and
optimization models, the predicted hydraulic heads from the optimization model
match those generated by the simulation model very closely. However, due to
nonlinear effects, the correlation between the chloride concentrations predicted by the
optimization model and those calculated by the simulation model is not as good.