Unsteadystate
flow equations
Constant water level in adjacent aquifer
Drawdown in the
main aquifer
where
Drawdown in
aquitard
Drawdown in
aquitard (slightly leakage)
or approximation
(late time)
where
zp
–
distance from observation point to top (or bottom) main aquifer,
m.
Alternating water level in adjacent aquifer
Drawdown in the
main aquifer (1)
Drawdown in
adjacent aquifer (2)
Drawdown in
aquitard
where
Drawdown in
semiinfinity aquitard
where
Drawdown
in semiinfinity
aquitard
(slightly leakage)
or approximation
(late time)
Methods of analysis and parameters being estimated
Plot

Method

Parameters

Comments


matching




matching




matching




matching




matching




matching




matching




matching




matching



Aquifer
parameters estimation can be made both from drawdowns in the main
and adjacent aquifers.
For constant
water level in adjacent aquifer
For drawdown in
semiinfinity aquitard
Drawdown
in semiinfinity
aquitard
(slightly leakage)
For
approximation
