Hydrology and simulation of ground-water flow in Juab Valley, Juab County, Utah.
Susan A. Thiros, Bernard J. Stolp, Heidi K. Hadley, Judy I. Steiger
1996, Technical Publication 114
Plans to import water to Juab Valley, Utah, primarily for irrigation, are part of the Central Utah Project. A better understanding of the hydrology of the valley is needed to help manage the water resources and to develop conjunctive-use plans.The saturated unconsolidated basin-fill deposits form the ground-water system in Juab...
Fluorescent minerals: A review
P.J. Modreski, R. Aumente-Modreski
1996, Rocks and Minerals Magazine (71) 14-22
No abstract available. ...
The developing framework of marine ecotoxicology: Pollutants as a variable in marine ecosystems?
Samuel N. Luoma
1996, Journal of Experimental Marine Biology and Ecology (200) 29-55
Marine ecosystems include a subset in which at least some interrelated geochemical, biochemical, physiological, population and community characteristics are changed by pollutants. Moderate contamination is relatively widespread in coastal and estuarine ecosystems, so the subset of ecosystems with at least some processes affected could be relatively large. Pollutant influences have...
The application of an analytic element model to investigate groundwater-lake interactions at Pretty Lake, Wisconsin
Randall J. Hunt, James T. Krohelski
1996, Lake and Reservoir Management (12) 487-495
Pretty Lake is a 64 acre, sandy-bottomed groundwater flow-through lake that has a history of hydrologic disturbance. Residents and regulators require a better understanding of lake-groundwater interaction to develop measures to protect the lake's hydrologic system and water quality. A groundwater flow model was constructed as a tool to synthesize...
A revised velocity-reversal and sediment-sorting model for a high-gradient, pool-riffle stream
D.M. Thompson, E.E. Wohl, R.D. Jarrett
1996, Physical Geography (17) 142-156
Sediment-sorting processes related to varying channel-bed morphology were investigated from April to November 1993 along a 1-km pool-riffle and step-pool reach of North Saint Vrain Creek, a small mountain stream in the Rocky Mountains of northern Colorado. Measured cross-sectional areas of flow were used to suggest higher velocities in pools than in <span...
Hanawaltite, Hg1+6Hg2+[Cl,(OH)]2O3 - A new mineral from the Clear Creek claim, San Benito County, California: Description and crystal structure
Andrew C. Roberts, Joel D. Grice, Robert A. Gault, A.J. Criddle, Richard C. Erd
1996, Powder Diffraction (11) 45-50
Hanawaltite, ideally Hg1+6Hg2+O3Cl2, is orthorhombic, Pbma (57), with unit-cell parameters refined from powder data: a=11.790(3), b=13.881(4), c=6.450(2) Å, V=1055.7(6) Å3, a:b:c =0.8494:1:0.4647, Z=4. The strongest six lines of the X-ray powder-diffraction pattern [d in Å (I)(hkl)] are: 5.25 (80)(111), 3.164 (60)(231),...
Helping Your Child Learn Geography
Water Resources Division, U.S. Geological Survey
1996, Report
By the year 2000, all students will leave grades 4, 8, and 12 having demonstrated competency over challenging subject matter including English, mathematics, science, foreign languages, civics and government, economics, arts, history, and geography, and every school in America will ensure that all students learn to use their minds well,...
Cytochrome P450 and contaminant concentrations in nestling black-crowned night-herons and their interrelation with sibling embryos
Barnett A. Rattner, Mark J. Melancon, Thomas W. Custer, Roger L. Hothem
1996, Environmental Toxicology and Chemistry (15) 715-721
Hepatic cytochrome P450-associated monooxygenase activities were measured in 11-d-old nestling black-crowned night-herons (Nycticorax nycticorax) collected from a reference site (next to Chincoteague National Wildlife Refuge, VA, USA) and three contaminated sites (Cat Island, Green Bay, WI, USA; Bair Island, San Francisco Bay, CA, USA; and West Marin Island, San Francisco...
A field data assessment of contemporary models of beach cusp formation
J.R. Allen, N.P. Psuty, B.O. Bauer, R.W.G. Carter
1996, Journal of Coastal Research (12) 622-629
Cusp formation was observed during an instrumented, daily profiled, time series of a reflective beach in Canaveral National Seashore, Florida on January 5, 1988. The monitored cusp embayment formed by erosion of the foreshore and the cusp series had a mean spacing of approximately 28...
Coexistence and community structure of tropical trees in a Hawaiian montane rain forest
Jeff S. Hatfield, William A. Link, Deanna K. Dawson, E. L. Lindquist
1996, Biotropica (28) 746-758
We measured the diameter at breast height of all trees and shrubs > 5 meters in height, including standing dead trees, on 68 0.04-hectare study plots in a montane, subtropical rain forest on Mauna Loa, Hawai`i. The canopy species consisted of 88 percent Metrosideros polymorpha (ohia) and 12 percent...
First-time observer effects in the North American Breeding Bird Survey
W. L. Kendall, B.G. Peterjohn, J.R. Sauer
1996, The Auk (113) 823-829
Currently the operational analysis of Breeding Bird Survey (BBS) data by the National Biological Service accounts for observer differences in estimating the trend for each route, but within-observer differences are not modeled. We tested for the existence of a form of within-observer differences in skill level, namely a change in...
Age-specific survival and philopatry in three species of European ducks: A long-term study
Peter Blums, Aivars Mednis, I. Bauga, J.D. Nichols, J.E. Hines
1996, Condor (98) 61-74
Capture-recapture and band recovery models were used to estimate age-specific survival probabilities for female Northern Shovelers (Anas clypeata), Common Pochards (Aythya ferina), and Tufted Ducks (Aythya.fuligula) at Engure Marsh, Latvia, in 1964-1993. We banded more than 65,100 day-old ducklings of both sexes and captured 10,211 incubating females (3,713 new...
Developmental toxicity of PCB 126 (3,3',4,4',5-pentachlorobiphenyl) in nestling American kestrels (Falco sparverius)
David J. Hoffman, Mark J. Melancon, P. N. Klein, Clifford P. Rice, John D. Eisemann, Randy K. Hines, James W. Spann, Grey W. Pendleton
1996, Fundamental and Applied Toxicology (34) 188-200
Planar PCB congeners are embryotoxic and teratogenic to birds including American kestrels. The developmental toxicity of 3,3′,4,4′,5-pentachlorobiphenyl (PCB 126) was studied in the posthatching kestrel as a model for the eagle. Nestlings were dosed orally for 10 days with 5 μl/g body weight of corn oil (controls) or the planar...
Interlaboratory study of precision: Hyalella azteca and Chironomus tentans freshwater sediment toxicity assays
G.A. Burton Jr., T. J. Norberg-King, C.G. Ingersoll, D.A. Benoit, G.T. Ankley, P. V. Winger, J. Kubitz, J.M. Lazorchak, M.E. Smith, E. Greer, F.J. Dwyer, D.J. Call, K.E. Day, P. Kennedy, M. Stinson
1996, Environmental Toxicology and Chemistry (15) 1335-1343
Standard 10-d whole-sediment toxicity test methods have recently been developed by the U.S. Environmental Protection Agency (EPA) for the amphipod Hyalella azteca and the midge Chironomus tentans. An interlaboratory evaluation of method precision was performed using a group of seven to 10 laboratories, representing government, academia, and environmental consulting firms....
Planar PCB Hazards to Fish, Wildlife, and Invertebrates: A Synoptic Review
R. Eisler, A. A. Belisle
1996, Contaminant Hazard Reviews 31
Ecological and toxicological aspects of polychlorinated biphenyls (PCBs) in the environment are reviewed with emphasis on biologically active congeners and fish and wildlife. Subtopics include sources and uses, chemical and biochemical properties, concentrations in field collections, lethal and sublethal effects, and recommendations for the protection of sensitive resources. All production...
Capture-recapture survival models taking account of transients
R. Pradel, J.E. Hines, J.D. Lebreton, J.D. Nichols
1996, Universite Montpellier, Rapport de Rechereche de l'Unite de Biometrie 96-03
The management of hunting of Anatidae
J.D. Nichols, Fred A. Johnson
Marcel Birkan, editor(s)
1996, Book chapter, Anatidae 2000 : an international conference on the conservation, habitat management and wise use of ducks, geese and swans = une conference internationale sur la conservation, la gestion des habitats et l'utilisation rationnelle des canards, des oies et des cygnes : Strasbourg, France, December 5-9, 1994
The objectives of harvest management for members of family Anatidae typically involve the size of the harvested population and the size of the harvest. Hunting regulations are the primary tool used to try to achieve the objectives of harvest management. Informed harvest management thus requires a knowledge...
National Digital Orthophoto Program
USDA Natural Resources Conservation Service, Farm Service Agency, National States Geographic Information Council, U.S. Forest Service, Water Resources Division, U.S. Geological Survey
1996, Report
A critical component of the National Spatial Data Infrastructure (NSDI) is Framework. Framework provides a base on which to collect, register, and integrate geospatial information accurately and consistently. The Federal Geographic Data Committee (FGDC) proposed that Framework include geodetic control, orthoimagery, elevation, transportation, hydrography, governmental units, and cadastral data. The...
Selected geochemical characteristics of ground water from the Marshall aquifer in the central Lower Peninsula of Michigan
Patricia B. Ging, David T. Long, Roger W. Lee
1996, Water-Resources Investigations Report 94-4220
Chemistry and stable-isotope data for water from wells completed in the Marshall aquifer within the Michigan Basin were used to prepare maps that show area! variations of δ18O; distribution of dissolved solids, dissolved chloride, dissolved iron, and dissolved sulfate; and distribution of hydrochemical facies. Delta oxygen-18 values indicate the presence of...
Damage and restoration of geodetic infrastructure caused by the 1994 Northridge, California, earthquake
Kathleen M. Hodgkinson, Ross S. Stein, Kenneth W. Hudnut, Jay Satalich, John H. Richards
1996, Open-File Report 96-517
We seek to restore the integrity of the geodetic network in the San Fernando, Simi, Santa Clarita Valleys and in the northern Los Angeles Basin by remeasurement of the network and identification of BMs which experienced non-tectonic displacements associated with the Northridge earthquake. We then use the observed displacement of...
Selected geochemical characteristics of ground water from the Saginaw aquifer in the central Lower Peninsula of Michigan
B. D. Meissner, David T. Long, Roger W. Lee
1996, Water-Resources Investigations Report 93-4220
Chemical and stable-isotope data of water from wells completed in the Saginaw aquifer in the central Lower Peninsula of Michigan were used to prepare maps that show areal variation of δ18O; distribution of dissolved solids, dissolved chloride, dissolved iron, dissolved sulfate; and distribution of hydrochemical facies. Delta oxygen-18 values indicate...
Computer input and output files associated with ground-water-flow simulations of the Albuquerque Basin, central New Mexico, 1901-94, with projections to 2020; (supplement one to U.S. Geological Survey Water-resources investigations report 94-4251)
J. M. Kernodle
1996, Open-File Report 96-208
This report presents the computer input files required to run the three-dimensional ground-water-flow model of the Albuquerque Basin, central New Mexico, documented in Kernodle and others (Kernodle, J.M., McAda, D.P., and Thorn, C.R., 1995, Simulation of ground-water flow in the Albuquerque Basin, central New Mexico, 1901-1994, with projections...
Computer input and output files associated with ground-water-flow simulations of the Albuquerque Basin, central New Mexico, 1901-95, with projections to 2020; (supplement three to U.S. Geological Survey Water-resources investigations report 94-4251)
J. M. Kernodle
1996, Open-File Report 96-210
This report presents the computer input files required to run the three-dimensional ground-water-flow model of the Albuquerque Basin, central New Mexico, documented in Kernodle and others (Kernodle, J.M., McAda, D.P., and Thorn, C.R., 1995, Simulation of ground-water flow in the Albuquerque Basin, central New Mexico, 1901-1994, with projections to 2020:...
South Florida High-accuracy elevation data collection project
Water Resources Division, U.S. Geological Survey
1996, Fact Sheet 162-96
BackgroundThe major issues facing ecosystem restoration and management in south Florida are centered on the availability and distribution of clean, fresh water. Surface water flow modeling studies are an important aspect of the scientific information needs of the ecosystem restoration initiative. Hydrologic models provide much needed predictive capabilities for evaluating...
USGS response to an urban earthquake, Northridge '94
Randall G. Updike, William M. Brown III, Margo L. Johnson, Eleanor M. Omdahl, Philip S. Powers, Susan Rhea, Arthur C. Tarr
1996, Open-File Report 96-263
The urban centers of our Nation provide our people with seemingly unlimited employment, social, and cultural opportunities as a result of the complex interactions of a diverse population embedded in an highly-engineered environment. Catastrophic events in one or more of the natural earth systems which underlie or envelop urban environment...
