THE APPLICATION OF MATHEMATICAL MODELS IN MANAGEMENT OF AQUIFER
Khosrow Shafiei Motlagh and Samad
zahermand
Department of Civil Engineering,
Dehdasht Branch,
Islamic Azad
University, Dehdasht, Iran
ABSTRACT
Before feeling
water shortage crisis human
has understood the
importance of water
From the religious texts. Considering
recent conditions of
the world the
water will replace
most recent boundaries, at future. Imamzadeh Jaafar
plain is located
5 kilometers northeast of
Gachsaran, south of Kohgilooye
and Boerahmad province. The
plain has 61km
2 area extents
and contains two, alluvial
and carbonate aquifers. These aquifers supply the water
needs, agricultural, industrial and domestic. Highly exploitation
and transportation of groundwater
resources, especially by National
Oil Company, caused highly
drawdown in alluvial
aquifer, 1.85m in a
5 years period
from 1361 to
1365 as reported
by Mahab Ghods
Consulting Engineers. There
are two artificial
recharge projects, 1 flood
spreading system and 1 recharge
ponds system, in the
plain. To present the
future water resources
management program the
hydrogeological behaviors of
the alluvial aquifer
and the effects
of artificial recharge
must be evaluated.
edrock, hydrodynamic coefficients, topography, water resources
and were collected, field surveys
were performed and
required maps were
prepared. Using conceptual model
and MODFLOW PMWIN
code the mathematical
model of the
plain was calibrated
against water year
1380 81 and then
verified against water
year 1384 85. The verified
model was used
to predict future
conditions of aquifer. The
results implied the
rapid response of
aquifer to precipitation
due to high
aquifer ransmissivity,
positive water budget
at year 1385
comparing year 65, change
of direction of
groundwater flow from
plain outlet to
the center of
plain in response
to highly exploitation at the center
of plain, water level
in the wells
located downward the
flood spreading system
will raise as
1 to 6m
and water level
in t he wells
located downward the
recharge pond system
will lower as
1 to 4m.
KEYWORDS
Ground water,
MODFLOW PMWIN, artificial recharge, Kohgilooye &Boerahmad.
Original Source URL:http://airccse.com/ams/papers/5118ams01.pdf
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