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http://dx.doi.org/10.12652/Ksce.2019.39.5.0579

Subsurface Characterization using the Simultaneous Search based Pilot Point Method (SSBM) in Various Data Applications  

Jung, Yong (Wonkwang University)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.39, no.5, 2019 , pp. 579-586 More about this Journal
Abstract
Pilot Point Method (PPM) is one of the popular methods to search hydraulic conductivities in the inverse method using groundwater flow equations. In this study, the Simultaneous Search based Pilot Point Method (SSBM) was applied with diverse information (e.g. hydraulic heads and/or tracer concentration) applications over previously developed sensitivity based Pilot Point Method (e.g. D-optimality based Pilot Point Method: DBM). In the case of DBM, due to the minimized the variance size, tracer concentration can be recognized as a tool to control the searching space of hydraulic conductivities. SSBM reduced the procedure of hydraulic conductivity searching, though it produced more variance for exploring hydraulic conductivities. In addition, SSBM was dependent on the initial hydraulic conductivity values for search finalized hydraulic conductivities. When tracer concentration was applied, searching hydraulic conductivities was more preferable than only when hydraulic head was applied. Applications of various data for searching hydraulic conductivities is recommended as a more efficient way.
Keywords
Simultaneous Search based Pilot Point Method (SSBM); Hydraulic conductivity; Hydraulic heads; Tracer concentration;
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