Matching parameters is the basic technique for aquifer properties estimation for most conceptual models.
The method involves solving the direct problem of groundwater flow. It allows finding (matching) the required coefficients by visually comparing (fitting) diagnostic drawdown curves with the theoretical curve corresponding to the analytical equation plotted for:
- the given test conditions (discharge rate, distance to the pumping well, time etc.) and
- assumed aquifer parameters.
The matching method is an efficient tool for assessing the sensitivity of the applied conceptual model to aquifer and technical parameters, and/or for comparing interpretation results by applying different conceptual models.
Matching parameters on time-drawdown plot.
Matching parameters allows predicting drawdown variations in time and space.