Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16759
Modified level II streambed-scour analysis for structure I-69-76-4775 crossing Salamonie River in Huntington County, Indiana Modified level II streambed-scour analysis for structure I-69-76-4775 crossing Salamonie River in Huntington County, Indiana
Level II scour evaluations follow a process in which hydrologic, hydraulic, and sediment transport data are evaluated to calculate the depth of scour that may result when a given discharge is routed through a bridge opening. The results of the modified Level II analysis for structure 1-69-76-4775 on Interstate 69 crossing Salamonie River in Huntington County, Indiana, are presented. The...
Authors
B.A. Robinson, D. C. Voelker, R. L. Miller
Loads and yields of nutrients and suspended sediment in the Susquehanna River basin, 1985-89 Loads and yields of nutrients and suspended sediment in the Susquehanna River basin, 1985-89
No abstract available.
Authors
L.A. Reed, C.S. Takita, G. J. Barton
Massive sediment bypassing on the lower shoreface offshore of a wide tidal inlet: Cat Island Pass, Louisiana Massive sediment bypassing on the lower shoreface offshore of a wide tidal inlet: Cat Island Pass, Louisiana
Analysis of a series of historical bathymetric and shoreline surveys along the Louisiana coast west of the Mississippi River mouth detected a large area of deposition in water depths of 2.0–8.5 m offshore of a 9-km-wide tidal inlet, the Cat Island Pass/Wine Island Pass system. A 59.9 · 106 m3 sandy deposit formed from the 1930s–1980s, spanning 27 km in the alongshore direction...
Authors
B. E. Jaffe, J. H. List, A. H. Sallenger
Hydrogeologic framework of western Cape Cod, Massachusetts Hydrogeologic framework of western Cape Cod, Massachusetts
The aquifer of western Cape Cod consists of several hydrogeologic units composed of sand, gravel, silt, and clay (fig. 1) that were deposited during the late Wisconsinan glaciation of New England. The aquifer is a shallow, unconfined hydrologic system in which ground-water flows radially outward from the apex of the ground-water mound near the center of the peninsula toward the coast...
Authors
John P. Masterson, Byron D. Stone, Donald A. Walter, Jennifer G. Savoie
Nitrate in ground water and stream base flow in the lower Susquehanna River Basin, Pennsylvania and Maryland Nitrate in ground water and stream base flow in the lower Susquehanna River Basin, Pennsylvania and Maryland
High concentrations of nitrate in both ground and surface water have been identified as a significant water-quality issue in the Lower Susquehanna River Basin. This report uses data collected by the National Water Quality Assessment (NAWQA) Program in the basin and compares nitrate concentrations found in ground water and surface water on both a spatial and temporal basis and relates...
Authors
Bruce D. Lindsey, Connie A. Loper, Robert A. Hainly
A GIS model to predict black bear habitat use A GIS model to predict black bear habitat use
No abstract available.
Authors
F.T. Van Manen, M.R. Pelton
Coupled physical-biological models for the study of harmful algal blooms Coupled physical-biological models for the study of harmful algal blooms
No abstract available.
Authors
Peter J.S. Franks, Richard P. Signell
Ground-water flow in the unconfined aquifer of the northern Barnegat Bay Watershed, New Jersey Ground-water flow in the unconfined aquifer of the northern Barnegat Bay Watershed, New Jersey
No abstract available.
Authors
Robert S. Nicholson, Martha K. Watt
Hydrogeologic data and aquifer interconnection in a multi-aquifer system in coastal plain sediments near Millhaven, Screven County, Georgia, 1991-1995 Hydrogeologic data and aquifer interconnection in a multi-aquifer system in coastal plain sediments near Millhaven, Screven County, Georgia, 1991-1995
No abstract available.
Authors
John S. Clarke, William F. Falls, Lucy E. Edwards, Norman O. Frederiksen, Laurel M. Bybell, Thomas G. Gibson, Gregory Gohn, Fleming R. Farley
Contaminants in the Gulf of Maine-What's here and should we worry? Contaminants in the Gulf of Maine-What's here and should we worry?
The Gulf of Maine is a dynamic environment that has highly variable bottom type and localized depositional and transport processes. It is used and impacted by the people around it who hope to use the marine system for many purposes such as fishing, recreation, housing, sewage and dumped disposal, shipping, recreation, and preservation. In order to identify "pollution", which is defined...
Authors
Marilyn R. Buchholtz ten Brink, Frank T. Manheim, Michael H. Bothner
The Bumpus house sparrow data: A reanalysis using structural equation models The Bumpus house sparrow data: A reanalysis using structural equation models
We analysed the data of H.C. Bumpus on the survival of house sparrows (Passer domesticus) using structural equation modelling techniques. Using data on seven morphological variables measured by Bumpus, we tested and confirmed a three-factor model that characterized physical attributes for general size, leg size and head size. Although males were physically larger than females, we found...
Authors
Bruce H. Pugesek, Adrian Tomer
Use of a gaseous tracer to determine air-flow pathways in low-permeability aquifers during air-sparging tests Use of a gaseous tracer to determine air-flow pathways in low-permeability aquifers during air-sparging tests
No abstract available.
Authors
Jeffrey Fischer, Timothy P. Wilson, A.C. Kane