Geospatial Analysis of Transmissivity and Hydraulic Conductivity Across Minnesota: Using the County Well Index and Specific-Capacity Data

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Geospatial Analysis of Transmissivity and Hydraulic Conductivity Across Minnesota: Using the County Well Index and Specific-Capacity Data

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Full, Jonathan

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2022-12

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Abstract

Numerous hydrogeologic studies have been performed across Minnesota; however, they focus on small regions of the state. The Minnesota Conductivity Calculator (MCC) was developed to better observe spatial variations in hydraulic conductivity. This work strives to capture the variations of hydraulic conductivity across a variety of domains, scaling from a small neighborhood of wells to large provinces spanning across the state. The MCC leverages data from the Minnesota County Well Index (CWI) to determine transmissivity and hydraulic conductivity at 170,975 wells. Then, lognormal ordinary kriging was performed with the hydraulic conductivity data to visualize spatial variations. The MCC can be used to efficiently produce maps of hydraulic conductivity across the state, which is useful for a number of groundwater management purposes, including groundwater modeling.

Keywords

Aquifer

Hydraulic Conductivity

Minnesota County Well Index

Ordinary Kriging

Semivariogram

Transmissivity

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University of Minnesota M.S. thesis. December 2022. Major: Geological Engineering. Advisor: Randal Barnes. 1 computer file (PDF); ii, 135 pages.

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Full, Jonathan. (2022). Geospatial Analysis of Transmissivity and Hydraulic Conductivity Across Minnesota: Using the County Well Index and Specific-Capacity Data. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/252479.

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