Specifically, HT involves installation of multiple wells in an aquifer, which are partitioned into several intervals along the depth using packers.
A sequential aquifer test at selected intervals is then conducted.
During the test, water is injected or withdrawn (i.e. a pressure excitation) at a selected interval in a given well.
Afterward, the data sets from all tests are processed by a mathematical model to estimate the spatial distribution of hydraulic properties of the aquifer.
In other words, predictions of ground water flow based on the HT estimates will be more accurate and less uncertain than those based on estimates from traditional site-characterization approaches and model calibrations.