Skip to main content
U.S. flag

An official website of the United States government

This site is currently in beta, and your feedback is helping shape its ongoing development.

Digitized Contours from Georeferenced Plate from "Analog simulation of water-level declines in the Sparta Sand, Mississippi Embayment" (Reed, 1972)

Published by U.S. Geological Survey | Department of the Interior | Metadata Last Checked: January 27, 2026 | Last Modified: 2022-12-01T00:00:00Z
A digital dataset of analog simulation of water-level declines in the Sparta Sand, Mississippi Embayment in Missouri, Kentucky, Arkansas, Tennessee, Louisiana, and Mississippi was developed from J.E. Reed's "Analog simulation of water-level declines in the Sparta Sand, Mississippi Embayment" (1972). The plate was georeferenced to North American Datum 1983 and projected to USA Contiguous Albers Equal Conic (U.S. Geological Survey version) projection (standard parallels 29.5 and 45.5 degrees, central meridian -96 degrees, and latitude of origin 23 degrees). Once georeferenced (using ArcMap v 10.4.1), individual potentiometric contours were digitized manually. Figures included in the digital dataset are figures 2 through 5 (predevelopment to predicted declines for 1990).

data.gov

An official website of the GSA's Technology Transformation Services

Looking for U.S. government information and services?
Visit USA.gov