Resource Type

A Two-Dimensional, Finite-Difference Model of the High Plains Aquifer in Southern South Dakota (open access)

A Two-Dimensional, Finite-Difference Model of the High Plains Aquifer in Southern South Dakota

Purpose: The objectives of this study were (1) to collect, synthesize, and interpret geologic and hydrologic data on the aquifer in the southern South Dakota area; (2) to evaluate, by digital-computer-model simulation, values assigned to the aquifer parameters; and (3) to evaluate the sensitivity of the calibrated digital-computer-model to changes in magnitude of the selected hydrologic parameters. Results of this study are, therefore, applicable to solving potential water-resource management problems in the southern South Dakota and northern Nebraska model area.
Date: 1983
Creator: Kolm, K. E. & Case, H. L., III
Object Type: Report
System: The UNT Digital Library
Statistical Analysis and Evaluation of Water-Quality Data for Selected Streams in the Coal Area of East-Central Montana (open access)

Statistical Analysis and Evaluation of Water-Quality Data for Selected Streams in the Coal Area of East-Central Montana

From purpose and scope: The purpose of this report is to summarize and evaluate water-quality data acquired from streams within the study area from October 1975 through September 1981. This report updates data collected at 9 stations during the initial study and provides new data for 14 stations.
Date: December 1983
Creator: Lambing, John H.
Object Type: Report
System: The UNT Digital Library
Effects of Urban Development on the Flood-Flow Characteristics of the Walnut Creek Basin, Des Moines Metropolitan Area, Iowa (open access)

Effects of Urban Development on the Flood-Flow Characteristics of the Walnut Creek Basin, Des Moines Metropolitan Area, Iowa

Report discussing the probable impact of urban development on the magnitude and frequency of flooding in the lower reaches of the Walnut Creek basin. (from Abstract)
Date: February 1978
Creator: Lara, Oscar G.
Object Type: Report
System: The UNT Digital Library
Ground-Water Resources in the Hood Basin, Oregon (open access)

Ground-Water Resources in the Hood Basin, Oregon

From introduction: This study was made in cooperation with the planning departments of Wasco and Hood River Counties, The purposes of this report are (1) to describe the occurrence, movement, availability, and quality of ground water in the basin; and (2) to assess, where possible, the extent, thickness, hydrologic boundaries, and hydraulic properties of the principal aquifers.
Date: 1983
Creator: Grady, Stephen J.
Object Type: Report
System: The UNT Digital Library