Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16741
Implications of new gravity data collected over the Wilkes Subglacial Basin, East Antarctica Implications of new gravity data collected over the Wilkes Subglacial Basin, East Antarctica
No abstract available.
Authors
R.I. Hackney, Uri S. ten Brink, S. Bannister, T.A. Stern
Delineating and monitoring habitat management units in a temperate deep-water marine protected area Delineating and monitoring habitat management units in a temperate deep-water marine protected area
No abstract available.
Authors
P.J. Auster, C. Michalopoulos, Page C. Valentine, R.J. Malatesta
Maps showing the surficial geology of the Culebra shelf, Puerto Rico Maps showing the surficial geology of the Culebra shelf, Puerto Rico
This study presents the surficial and shallow subbottom geology of the insular shelf around Culebra, Puerto Rico. In view of the need for sand and gravel for construction purposes in the area, we inferred the thickness of unlithified, surficial sediment deposits from high-resolution acoustic-reflection profiles and described seafloor sediment samples collected with a Shipek grab.
Authors
M. A. Hampton, M.E. Torresan, Juan L. Trias, D. W. Folger, F. L. Wong
Effects of simulated ground-water pumping and recharge on ground-water flow in Cape Cod, Martha's Vineyard, and Nantucket Island basins, Massachusetts Effects of simulated ground-water pumping and recharge on ground-water flow in Cape Cod, Martha's Vineyard, and Nantucket Island basins, Massachusetts
Three-dimensional transient ground-water-flow models that simulate both freshwater and saltwater flow were developed for the flow cells of the Cape Cod Basin to determine the effects of long-term pumping and recharge, seasonal fluctuations in pumping and recharge, and prolonged reductions of natural recharge, on the position of the freshwater-saltwater interface, water-table and pond...
Authors
John P. Masterson, Paul M. Barlow
Trends in surface-water quality in Connecticut Trends in surface-water quality in Connecticut
No abstract available.
Authors
Elaine C. Trench, B.A. Korzendorfer
Modified level II streambed-scour analysis for structure I-74-32-4946 crossing Sugar Creek in Montgomery County, Indiana Modified level II streambed-scour analysis for structure I-74-32-4946 crossing Sugar Creek in Montgomery County, Indiana
Level II scour evaluations follow a process in which hydrologic, hydraulic, and sedient-transport data are evaluated to calculate the depth of scour that may result when given discharge is routed through a bridge opening. The results of the modified Levell II analysis for structure I-74-32-4946 on Interstate 74 crossing Sugar Creek in Montgomery County, Indiana are presented. The site is...
Authors
R. L. Miller, B.A. Robinson, D. C. Voelker
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