CFCs in binary mixtures of young and old groundwater
L.N. Plummer, Eurybiades Busenberg, L. F Han
2006, Book chapter, Use of chlorofluorocarbons in hydrology: A guidebook
No abstract available. ...
Data interpretation in representative cases
L.N. Plummer, Eurybiades Busenberg, L. F Han
2006, Book chapter, Use of chlorofluorocarbons in hydrology: A guidebook
No abstract available. ...
Effects and processes that can modify apparent CFC age
P. Cook, L.N. Plummer, D. K. Solomon, Eurybiades Busenberg, L. F Han
2006, Book chapter, Chlorofluorocarbons in hydrology: A guidebook
No abstract available. ...
Groundwater modeling
Leonard F. Konikow, Thomas E. Reilly, Paul M. Barlow, Clifford I. Voss
J.W. Delleur, editor(s)
2006, Book chapter, The handbook of groundwater engineering
No abstract available....
Models of groundwater ages and residence times
D. K. Solomon, L.N. Plummer, Eurybiades Busenberg, P.G. Cook
2006, Book chapter, Use of chlorofluorocarbons in hydrology: guidebook
No abstract available. ...
Practical application of CFCs in hydrological investigations
D. K. Solomon, L.N. Plummer, Eurybiades Busenberg, P.G. Cook
2006, Book chapter, Use of chlorofluorocarbons in hydrology: A guidebook
No abstract available. ...
Attention of arsenic in Bangladesh sediments: Implications for ground-water development
A. H. Welch, Kenneth G. Stollenwerk, George N. Breit, A. L. Foster, J. C. Yount, J.W. Whitney, M.N. Uddin, A.M. Alam
2006, Book chapter, Managing arsenic in the environment: From soil to human health
No abstract available....
Reply to comment on ‘Characterization of surface and ground water δ18O seasonal variation and its use for estimating groundwater residence times’ by R. E. Criss and W. E. Winston
Michael M. Reddy, Paul Schuster, Carol Kendall, Micaela B. Reddy
2006, Hydrological Processes (20) 3573-3578
No abstract available ...
Tracermodel1- Excel workbook for calculation and presentation of environmental tracer data for simple groundwater mixtures: Use of chlorofluorocarbons in hydrology - a guidebook; Section III.10.3
J.K. Bohlke
2006, Report
Atmospheric environmental tracers commonly used to date groundwater on timescales of years to decades include CFC-11, CFC-12, CFC-113, SF6, 85Kr, 3 H and 3 H/3 H0 , where 3 H0 refers to initial tritium (3 H + tritiogenic 3 He) (Cook and Herczeg, 2000). Interpretation of age from environmental tracer...
Control of invasive weeds with prescribed burning
Joseph M. DiTomaso, Matthew L. Brooks, Edith B. Allen, Ralph Minnich, Peter M. Rice, Guy B. Kyser
2006, Weed Technology (20) 535-548
Prescribed burning has primarily been used as a tool for the control of invasive late-season annual broadleaf and grass species, particularly yellow starthistle, medusahead, barb goatgrass, and several bromes. However, timely burning of a few invasive biennial broadleaves (e.g., sweetclover and garlic mustard), perennial grasses (e.g., bluegrasses and smooth brome),...
Arsenic and selenium in microbial metabolism
John F. Stolz, Partha Basu, Joanne M. Santini, Ronald S. Oremland
2006, Annual Review of Microbiology (60) 107-130
Arsenic and selenium are readily metabolized by prokaryotes, participating in a full range of metabolic functions including assimilation, methylation, detoxification, and anaerobic respiration. Arsenic speciation and mobility is affected by microbes through oxidation/reduction reactions as part of resistance and respiratory processes. A robust arsenic cycle has been demonstrated in diverse...
Extracellular and intracellular uptake of zinc in a photosynthetic biofilm matrix:
J.M. Morris, J.S. Meyer
2006, Bulletin of Environmental Contamination and Toxicology (77) 30-35
No abstract available....
Changes in organic matter biodegradatility influencing sulfate reduction in an aquifer contaminated by landfill leachate
Steve H. Harris Jr., Jonathan D. Istok, Joseph M. Suflita
2006, Microbial Ecology (51) 535-542
In situ experiments were conducted to measure sulfate reduction rates and identify rate-limiting factors in a shallow, alluvial aquifer contaminated with municipal landfill leachate. Single-well, push–pull tests conducted in a well adjacent to the landfill with >8 mM dissolved organic carbon (DOC) exhibited a sulfate reduction rate of 3.2 μmol...
Relations between climatic variability and hydrologic time series from four alluvial basins across the southwestern United States
R. T. Hanson, M. D. Dettinger, M.W. Newhouse
2006, Hydrogeology Journal (14) 1122-1146
Hydrologic time series of groundwater levels, streamflow, precipitation, and tree-ring indices from four alluvial basins in the southwestern United States were spectrally analyzed, and then frequency components were reconstructed to isolate variability due to climatic variations on four time scales. Reconstructed components (RCs), from each time series, were compared to...
The Amphibian Research and Monitoring Initiative (ARMI): 5-year report
Erin Muths, Alisa L. Gallant, Evan H. Campbell Grant, William A. Battaglin, David E. Green, Jennifer S. Staiger, Susan C. Walls, Margaret S. Gunzburger, Rick F. Kearney
2006, Scientific Investigations Report 2006-5224
The Amphibian Research and Monitoring Initiative (ARMI) is an innovative, multidisciplinary program that began in 2000 in response to a congressional directive for the Department of the Interior to address the issue of amphibian declines in the United States. ARMI’s formulation was cross-disciplinary, integrating U.S. Geological Survey scientists from Biology,...
Users' manual for the Hydroecological Integrity Assessment Process software (including the New Jersey Assessment Tools)
James A. Henriksen, John Heasley, Jonathan G. Kennen, Steven Nieswand
2006, Open-File Report 2006-1093
This manual is a user’s guide to four computer software tools that have been developed for the Hydroecological Integrity Assessment Process. The Hydroecological Integrity Assessment Process recognizes that streamflow is strongly related to many critical physiochemical components of rivers, such as dissolved oxygen, channel geomorphology, and water temperature, and can...
Assessment of factors limiting Klamath River fall Chinook salmon production potential using historical flows and temperatures
John M. Bartholow, James A. Henriksen
2006, Open-File Report 2006-1249
We parameterized and applied a deterministic salmon production model to infer the degree to which river flows and temperatures may limit freshwater production potential of the Klamath River in California. Specific parameter requirements, data sources, and significant assumptions are discussed in detail. Model simulations covered a wide variety of historical...
2005 annual progress report: Elk and bison grazing ecology in the Great Sand Dunes complex of lands
Kate A. Schoenecker, Bruce C. Lubow, Linda Zeigenfuss, Julie Mao
2006, Open-File Report 2006-1267
In 2000 the U.S. Congress authorized the expansion of the former Great Sand Dunes National Monument by establishing a new Great Sand Dunes National Park and Preserve in its place, and establishing the Baca National Wildlife Refuge. The establishment of Great Sand Dunes National Park and Preserve and the new...
"HIP" new software: The Hydroecological Integrity Assessment Process
Jim Henriksen, Juliette T. Wilson
2006, Fact Sheet 2006-3088
Managing rivers and streams to maintain healthy aquatic ecosystems is a challenge for resource managers across the country. Demand for competing uses of water resources grows with escalating development, increasing recreational use, and the vagaries of climate and weather. For many species of concern, instream flow and associated water quality...
Modeling wetland plant community response to assess water-level regulation scenarios in the Lake Ontario-St. Lawrence River basin
Christiane Hudon, Douglas Wilcox, Joel Ingram
2006, Environmental Monitoring and Assessment (113) 303-328
The International Joint Commission has recently completed a five-year study (2000-2005) to review the operation of structures controlling the flows and levels of the Lake Ontario - St. Lawrence River system. In addition to addressing the multitude of stakeholder interests, the regulation plan review also considers environmental sustainability and integrity...
Predicting crappie recruitment in Ohio reservoirs with spawning stock size, larval density, and chlorophyll concentrations
David B. Bunnell, R. Scott Hale, Michael J. Vanni, Roy A. Stein
2006, North American Journal of Fisheries Management (26) 1-12
Stock-recruit models typically use only spawning stock size as a predictor of recruitment to a fishery. In this paper, however, we used spawning stock size as well as larval density and key environmental variables to predict recruitment of white crappies Pomoxis annularis and black crappies P. nigromaculatus, a genus notorious...
Variability and regulation of denitrification in an Upper Mississippi River backwater
E.A. Strauss, W. B. Richardson, J.C. Cavanaugh, L.A. Bartsch, Rebecca M. Kreiling, A.J. Standorf
2006, Journal of the North American Benthological Society (25) 596-606
Sediments in the backwaters of the Upper Mississippi River (UMR) are highly organic and provide an optimal environment for N removal. We monitored an 8.6-ha UMR backwater site near La Crosse, Wisconsin, for nearly 3 y to assess temporal variability, seasonal trends, and the factors regulating denitrification. We measured rates...
Forecasting effects of climate change on Great Lakes fisheries: models that link habitat supply to population dynamics can help
Michael L. Jones, Brian J. Shuter, Yingming Zhao, Jason D. Stockwell
2006, Canadian Journal of Fisheries and Aquatic Sciences (63) 457-468
Future changes to climate in the Great Lakes may have important consequences for fisheries. Evidence suggests that Great Lakes air and water temperatures have risen and the duration of ice cover has lessened during the past century. Global circulation models (GCMs) suggest future warming and increases in precipitation in the...
A water-budget approach to restoring a sedge fen affected by diking and ditching
Douglas A. Wilcox, Michael J. Sweat, Martha L. Carlson, Kurt P. Kowalski
2006, Journal of Hydrology (320) 501-517
A vast, ground-water-supported sedge fen in the Upper Peninsula of Michigan, USA was ditched in the early 1900s in a failed attempt to promote agriculture. Dikes were later constructed to impound seasonal sheet surface flows for waterfowl management. The US Fish and Wildlife Service, which now manages the wetland as...
Transverse and longitudinal variation in woody riparian vegetation along a montane river
Jonathan M. Friedman, G.T. Auble, E.D. Andrews, G. Kittel, R.F. Madole, E.R. Griffin, Tyler M. Allred
2006, Western North American Naturalist (66) 78-91
This study explores how the relationship between flow and riparian vegetation varies along a montane river. We mapped occurrence of woody riparian plant communities along 58 km of the San Miguel River in southwestern Colorado. We determined the recurrence interval of inundation for each plant community by combining step-backwater hydraulic...
