Publications
Here you will find publications, reports and articles produced by Core Science System scientists. For a comprehensive listing of all USGS publications please click the button below.
Filter Total Items: 249
The Virginia Coastal Plain Hydrogeologic Framework
A refined descriptive hydrogeologic framework of the Coastal Plain of eastern Virginia provides a new perspective on the regional ground-water system by incorporating recent understanding gained by discovery of the Chesapeake Bay impact crater and determination of other geological relations. The seaward-thickening wedge of extensive, eastward-dipping strata of largely unconsolidated sediments is c
Authors
Randolph E. McFarland, Bruce T. Scott
Highly Pathogenic Avian Influenza Early Detection Data System (HEDDS)
HEDDS offers a unique opportunity for multiagency cooperation for data sharing and visualization.
Authors
Robert Worrest, F. Joshua Dein
An interface between the Agricultural Non-Point Source (AGNPS) pollution model and the ERDAS Imagine Geographic Information System (GIS)
The U.S. Department of Agriculture developed the Agricultural Non-Point Source (AGNPS) pollution model. The AGNPS pollution model simulates the behavior of runoff, sediment, and nutrient transport from watersheds that have agriculture as their prime use. This model has been used extensively by scientists conducting hydrologic or water quality analyses using computer modeling in an attempt to furth
Authors
Michael P. Finn, E. Lynn Usery, Douglas J. Scheidt, Gregory M. Jaromack, Timothy D. Krupinski
Spatial data acquisition and integration
No abstract available.
Authors
J. Jensen, A. Saalfeld, F. Broome, D. Cowen, K. Price, D. Ramsey, L. Lapine, E. Lynn Usery
Introduction to the UCGIS research agenda
No abstract available.
Authors
E. Lynn Usery, Robert B. McMaster
Postscript on the UCGIS and research
No abstract available.
Authors
D. M. Mark, E. Lynn Usery, Robert B. McMaster
Mississippi Basin Carbon Project: Upland soil database for sites in Nishnabotna River basin, Iowa
The conversion of land from its native state to an agricultural use commonly results in a significant loss of soil carbon (Mann, 1985; Davidson and Ackerman, 1993). Globally, this loss is estimated to account for as much as 1/3 of the net CO2 emissions for the period of 1850 to 1980 (Houghton and others, 1983). Roughly 20 to 40 percent of original soil carbon is estimated to be lost as CO2 as a re
Authors
J. W. Harden, T. L. Fries, R. Haughy, L. Kramer, Shuhui Zheng