Unsteadystate
flow equation
1. Solution for
the aquifer of variable thickness
2. Solution for
sloping unconfined nonleaky aquifer
3. Solution for
sloping unconfined leaking aquifer
Methods of analysis and parameters being estimated
Plot

Method

Parameters

Comments


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matching by
separate points


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For leaking
aquifer leackage factor is additionally estimated; for aquifer with
variable thickness storage coefficient (S)
is estimated instead of hydraulic diffusivity (a).
Additional
parameter preset for sloping aquifer is the slope value, for
wedgeshaped aquifer – aquifer thickness value near the observation
well.
Drawdown depends
not only from the distance to the observation well, but also from
the distance
L'p
(see
figure) to horizontal
line on which the pumping well is situated. This distance is
defined in the table "Well", column
"Boundary"
