Masters Theses

Keywords and Phrases

Cokriging; Digital Elevation Model; Groundwater Elevation; Kriging; Variogram

Abstract

"Groundwater elevation interpolation is necessary for the prediction of groundwater flow direction and contaminant transport. Kriging is a geostatistical tool commonly used to interpolate groundwater elevation. Kriging requires a relatively large number of monitoring wells at the site of interest. The variogram model is a crucial element to the kriging equations. The variogram modelling process is an iterative procedure that is often very time consuming. This study presents a literature based approach that provides a point of departure for the variogram modelling process as well as other kriging parameters. A literature database is developed in order to provide insight and a measure of reasonableness to the variogram parameters developed at a groundwater interpolation site. A case study was performed on the Fort Leonard Wood Military Reservation located in Missouri. A data quality analysis was performed on the dataset and spatial outliers were removed. The results from before and after spatial outlier removal are shown. Compliance points were developed using data gaps observed from the standard error maps produced during kriging. The number of wells for the Fort Leonard Wood site were reduced from 61 wells to 45, 30, and 15 wells. Three realizations were performed for each well reduction and results were averaged. Results indicate that when the number of wells are reduced to 15 wells the contour maps are inconsistent with the baseline contour map, each other, as well as the conceptual model. The literature based approach can be easily applied as a point of departure for kriging groundwater elevations"--Abstract, page iv.

Advisor(s)

Guggenberger, Joe D., II

Committee Member(s)

Elmore, A. Curt
Mendoza, Cesar

Department(s)

Geosciences and Geological and Petroleum Engineering

Degree Name

M.S. in Geological Engineering

Sponsor(s)

United States. Army. Corps of Engineers

Comments

Financial support of United States Army Corps of Engineers W912DQ-14-2-0003-001

Publisher

Missouri University of Science and Technology

Publication Date

Fall 2017

Journal article titles appearing in thesis/dissertation

  • Literature-based point of departure parameters for kriging groundwater surfaces

Pagination

ix, 84 pages

Note about bibliography

Includes bibliographical references.

Geographic Coverage

Fort Leonard Wood, Pulaski County, Missouri

Rights

© 2017 Rachel Mae Uetrecht, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Thesis Number

T 11242

Electronic OCLC #

1021857693

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