Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16739
Calibration of a streamflow-routing model for the Delaware River and its principal tributaries in New York, New Jersey, and Pennsylvania Calibration of a streamflow-routing model for the Delaware River and its principal tributaries in New York, New Jersey, and Pennsylvania
The flow-routing module of the Hydrologic Simulation Program-Fortran watershed model was calibrated for 31 reaches on the Delaware River and 5 of it principal tributaries. These calibrations primarily involved the development of discharge-storage volume relations for the defined reaches. Daily discharge records for stream-gaging stations located at the upstream ends of the study reaches...
Authors
H.N. Flippo, T.M. Madden
Overview of the southern Lake Michigan coastal erosion study Overview of the southern Lake Michigan coastal erosion study
No abstract available.
Authors
David W. Folger, Steven M. Colman, Peter W. Barnes
Environmental contaminants in redheads wintering in coastal Louisiana and Texas Environmental contaminants in redheads wintering in coastal Louisiana and Texas
Whole body and liver analyses indicated that wintering redheads (Aythya americana; n = 70) in coastal Louisiana (one site) and Texas (two sites) were relatively free of contamination with common trace elements, organochlorines, and hydrocarbons. Most trace elements, including As, Cr, Hg, Mg, Mn, Ni, Pb, Se, Sr, and Zn, were within background concentrations in livers; levels of B, Cd, Cu...
Authors
T.C. Michot, T. W. Custer, A.J. Nault, C. A. Mitchell
Lead isotope compositions as guides to early gold mineralization: The North Amethyst vein system, Creede district, Colorado Lead isotope compositions as guides to early gold mineralization: The North Amethyst vein system, Creede district, Colorado
The North Amethyst vein system, which is hosted by approximately 27 Ma Carpenter Ridge Tuff and approximately 26 Ma Nelson Mountain Tuff, has two mineral associations separated by brecciation and sedimentation in the veins. The early association consists of quartz, rhodonite, hematite, magnetite, electrum (Au (sub 0.3-0.5) Ag (sub 0.7-0.5)) , and Mn carbonate, Au-Ag sulfide, Ag sulfosalt...
Authors
Nora K. Foley, Robert A. Ayuso
Historical and potential scour around bridge piers and abutments of selected stream crossings in Indiana Historical and potential scour around bridge piers and abutments of selected stream crossings in Indiana
Historical scour data were collected by means of geophysical techniques and used to evaluate the scour-computation procedures recommended by the U.S. Federal Highway Administration and 12 other pub- lished pier-scour equations. Geophysical data were collected at 10 bridges in Indiana. For this evaluation it was assumed that the historical scour measured by use of geophysical techniques...
Authors
D. S. Mueller, R. L. Miller, J.T. Wilson
Acoustic mapping as an environmental management tool: I. detection of barrels of low-level radioactive waste, Gulf of the Farallones National Marine Sanctuary, California Acoustic mapping as an environmental management tool: I. detection of barrels of low-level radioactive waste, Gulf of the Farallones National Marine Sanctuary, California
The oceans have been and will continue to be disposal sites for a wide variety of waste products. Often these wastes are not dumped at the designated sites or transport occurs during or after dumping, and, subsequent attempts to monitor the effects the waste products have on the environment are inadequate because the actual location of the waste is not known. Acoustic mapping of the...
Authors
Herman A. Karl, William C. Schwab, A. St. C. Wright, David E. Drake, John L. Chin, William W. Danforth, Edward Ueber
New recording package for VACM provides sensor flexibility New recording package for VACM provides sensor flexibility
For the past three decades, the VACM has been a standard for ocean current measurements. A VACM is a true vector-averaging instrument that computes north and east current vectors and averages temperature continuously over a specified interval. It keeps a running total of rotor counts, and records one-shot samples of compass, vane position and time. Adding peripheral sensors to the data...
Authors
William J. Strahle, S. E. Worrilow, S. E. Fucile, Marinna A. Martini
Antifouling leaching technique for optical lenses Antifouling leaching technique for optical lenses
The effectiveness of optical lenses deployed in water less than 100 m deep is significantly reduced by biofouling caused by the settlement of macrofauna, such as barnacles, hydroids, and tunicates. However, machineable porous plastic rings can be used to dispense antifoulant into the water in front of the lens to retard macrofaunal growth without obstructing the light path. Unlike...
Authors
William J. Strahle, C. L. Perez, Marinna A. Martini
Designing large-scale surveys of wildlife abundance and diversity using statistical sampling principles Designing large-scale surveys of wildlife abundance and diversity using statistical sampling principles
No abstract available.
Authors
M.J. Conroy, D. R. Smith
Evaluation of the effects of an oxygen injection system on the growth, hematology, and immunity of lake trout Evaluation of the effects of an oxygen injection system on the growth, hematology, and immunity of lake trout
Fingerling lake trout (Salvelinus namaycush) were reared for 64 d at three pressures of dissolved gases, expressed in relation to saturation values (▵P)–untreated (control) water, ▵P = 10 mm Hg; water treated by column degassing with air, ▵P = 9 mm Hg; and water treated with an oxygen injection system, ▵P = −20 mm Hg. Dissolved oxygen concentration for experimental groups was increased...
Authors
W. F. Krise, J. W. Meade, J.R. McClain
Requirement of rainbow trout for dietary phosphorus and its relationship to the amount discharged hatchery effluents Requirement of rainbow trout for dietary phosphorus and its relationship to the amount discharged hatchery effluents
No abstract available.
Authors
H. G. Ketola, M. E. Richmond
Global climate change: Implications for submerged aquatic vegetation Global climate change: Implications for submerged aquatic vegetation
No abstract available.
Authors
William M. Rizzo, Hilary A. Neckles