Premium
Mathematical Model of Uluova Plain, Turkey A Training and Management Tool
Author(s) -
Karanjac Jasminko,
Altunkaynak Mustafa,
Ouvül Göksel
Publication year - 1977
Publication title -
groundwater
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.84
H-Index - 94
eISSN - 1745-6584
pISSN - 0017-467X
DOI - 10.1111/j.1745-6584.1977.tb03179.x
Subject(s) - aquifer , groundwater , hydrogeology , hydrology (agriculture) , environmental science , period (music) , geology , geotechnical engineering , physics , acoustics
The modelling of the Uluova Plain in southeastern Turkey was a part of training offered to Turkey's State Hydraulic Works' staff within a UNDP project. The modelling of the 341‐sq km plain started with the simple steady‐state version, but the model was gradually made more and more complex. At the end of modelling, the entire ground‐water system was subjected to various automatic controls. The interesting feature of the model was the interaction between surface water (Keban Reservoir) and ground water. Lake Keban started encroaching upon the plain in 1974 and by the middle of 1976 it occupied over 100 sq km of the plain. In its verification phase covering the period from 1967 through 1974, the model amended the conclusions from a previous hydrogeological study. In its prediction phase, the model simulated the ground‐water extraction plans for the 1976–1985 period. The modelling showed that the planned increase in ground‐water withdrawal from about 17 million cubic meters (MCM) in 1975 to about 30 MCM in 1976 was quite realistic and completely sustained by the aquifer. The maximum drawdowns in the 1974–1980 period are of an order of magnitude of 20 meters. Another sharp increase in ground‐water development from 30 to 58 MCM that was foreseen for 1981 would create drawdowns in some areas in excess of 35 m. The results of modelling pointed at several possible management alternatives. Several computation runs, which were repeated with Lake Keban removed from simulation as if it had not existed, made possible the evaluation of actual effects of the lake on ground‐water development potentials of the plain. It was demonstrated that the lake improved the situation appreciably over an area of about 48 sq km that was foreseen by planning for additional development. The Uluova model incorporates some advanced and new routines in integrated surface‐water–ground‐water simulation.