Chlorofluorocarbons in aquatic environments
L.N. Plummer, Eurybiades Busenberg
2006, Book chapter, Use of chlorofluorocarbons in hydrology: A guidebook
No abstract available. ...
Chlorofluorocarbons in the atmosphere
L.N. Plummer, Eurybiades Busenberg
2006, Book chapter, Use of chlorofluorocarbons in hydrology: A guidebook
No abstract available. ...
Principles of chlorofluorocarbon dating
L.N. Plummer, Eurybiades Busenberg
2006, Book chapter, Use of chlorofluorocarbons in hydrology: A guidebook
No abstract available. ...
Selected case studies using CFC data
L.N. Plummer, Eurybiades Busenberg, P.G. Cook, L. F Han, M. Groning
2006, Book chapter, Use of chlorofluorocarbons in hydrology: A guidebook
No abstract available. ...
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....
Assessment of nitrification potential in ground water using short term, single-well injection experiments
R. L. Smith, L.K. Baumgartner, D.N. Miller, D.A. Repert, J.K. Böhlke
2006, Microbial Ecology (51) 22-35
Nitrification was measured within a sand and gravel aquifer on Cape Cod, MA, using a series of single-well injection tests. The aquifer contained a wastewater-derived contaminant plume, the core of which was anoxic and contained ammonium. The study was conducted near the downgradient end of the ammonium zone, which was...
Michigan Water Year 2005
S. P. Blumer, C.R. Whited, J.M. Ellis, R. J. Minnerick, R.L. LeuVoy
2006, Water Resources Data MI-05-1
This volume of the annual hydrologic data report of Michigan is one of a series of annual reports that document hydrologic data gathered from the U.S. Geological Survey's surface- and ground-water data-collection networks in each state, Puerto Rico, and the Trust Territories. These records of streamflow, ground-water levels, and quality...
Groundwater-surface water interaction in the riparian zone of an incised channel, Walnut Creek, Iowa
K. E. Schilling, Z. Li, Y.-K. Zhang
2006, Journal of Hydrology (327) 140-150
Riparian zones of many incised channels in agricultural regions are cropped to the channel edge leaving them unvegetated for large portions of the year. In this study we evaluated surface and groundwater interaction in the riparian zone of an incised stream during a spring high flow period using detailed stream...
Dissimilatory arsenate and sulfate reduction in sediments of two hypersaline, arsenic-rich soda lakes: Mono and Searles Lakes, California
T.R. Kulp, S.E. Hoeft, L.G. Miller, C. Saltikov, J.N. Murphy, S. Han, B. Lanoil, R.S. Oremland
2006, Applied and Environmental Microbiology (72) 6514-6526
A radioisotope method was devised to study bacterial respiratory reduction of arsenate in sediments. The following two arsenic-rich soda lakes in California were chosen for comparison on the basis of their different salinities: Mono Lake (∼90 g/liter) and Searles Lake (∼340 g/liter). Profiles of arsenate reduction...
Modeling effects of multinode wells on solute transport
Leonard F. Konikow, G.Z. Hornberger
2006, Ground Water (44) 648-660
Long-screen wells or long open boreholes with intraborehole flow potentially provide pathways for contaminants to move from one location to another in a ground water flow system. Such wells also can perturb a flow field so that the well will not provide water samples that are representative of ground water...
Effect of H2 and redox condition on biotic and abiotic MTBE transformation
P. M. Bradley, F. H. Chapelle, J. E. Landmeyer
2006, Ground Water Monitoring and Remediation (26) 74-81
Laboratory studies conducted with surface water sediment from a methyl tert-butyl ether (MTBE)-contaminated site in South Carolina demonstrated that, under methanogenic conditions, [U-14C] MTBE was transformed to 14C tert-butyl alcohol (TBA) with no measurable production of 14CO2. Production of TBA was not attributed to the activity of methanogenic microorganisms, however,...
Mountain hydrology of the western United States
Roger C. Bales, Noah P. Molotch, Thomas H. Painter, Michael D. Dettinger, Robert Rice, Jeff Dozier
2006, Water Resources Research (42)
Climate change and climate variability, population growth, and land use change drive the need for new hydrologic knowledge and understanding. In the mountainous West and other similar areas worldwide, three pressing hydrologic needs stand out: first, to better understand the processes controlling the partitioning of energy and water fluxes within...
Drainage effects on the transient, near-surface hydrologic response of a steep hillslope to rainfall: Implications for slope stability, Edmonds, Washington, USA
G. Biavati, J. W. Godt, J.P. McKenna
2006, Natural Hazards and Earth System Sciences (6) 343-355
Shallow landslides on steep (>25??) hillsides along Puget Sound have resulted in occasional loss of life and costly damage to property during intense or prolonged rainfall. As part of a larger project to assess landslide hazards in the Seattle area, the U.S. Geological Survey instrumented two coastal bluff sites in...
Potential effects of recurrent low oxygen conditions on the Illinois Cave amphipod
S.V. Panno, Keith C. Hackley, W.R. Kelly, H.-H. Hwang, F.M. Wilhelm, S.J. Taylor, B.J. Stiff
2006, Journal of Cave and Karst Studies (68) 55-63
The caves of Illinois' sinkhole plain are the sole habitat of the Illinois Cave amphipod (Gammarus acherondytes), a federally endangered species. The sinkhole plain is a hydrologically-connected sequence of karstified limestone that constitutes an extensive karst aquifer which serves as an important source of potable water for area residents. During...
Delineating a shallow fault zone and dipping bed rock strata using multichannal analysis of surface waves with a land streamer
J. Ivanov, R. D. Miller, P. Lacombe, C. D. Johnson, J.W. Lane Jr.
2006, Geophysics (71) A39-A42
The multichannel analysis of surface waves (MASW) seismic method was used to delineate a fault zone and gently dipping sedimentary bedrock at a site overlain by several meters of regolith. Seismic data were collected rapidly and inexpensively using a towed 30-channel land streamer and a rubberband-accelerated weight-drop seismic source. Data...
A landscape-scale model of yellow-billed loon (Gavia adamsii) habitat preferences in northern alaska
Susan L. Earnst, Robert Platte, Laura Bond
2006, Hydrobiologia (567) 227-236
We modeled yellow-billed loon (Gavia adamsii) habitat preferences in a 23,500 km2 area of northern Alaska using intensive aerial surveys and landscape-scale habitat descriptors. Of the 757 lakes censused, yellow-billed loons occupied 15% and Pacific loons (G. pacifica) 42%. Lake area, depth, proportion of shoreline in aquatic vegetation,...
Assimilation of snow covered area information into hydrologic and land-surface models
M.P. Clark, A.G. Slater, A.P. Barrett, L.E. Hay, G.J. McCabe, B. Rajagopalan, G.H. Leavesley
2006, Advances in Water Resources (29) 1209-1221
This paper describes a data assimilation method that uses observations of snow covered area (SCA) to update hydrologic model states in a mountainous catchment in Colorado. The assimilation method uses SCA information as part of an ensemble Kalman filter to alter the sub-basin distribution of snow as well as the...
Multiphase, multicomponent parameter estimation for liquid and vapor fluxes in deep arid systems using hydrologic data and natural environmental tracers
Edward M. Kwicklis, Andrew V. Wolfsberg, Philip H. Stauffer, Michelle Ann Walvoord, Michael J. Sully
2006, Vadose Zone Journal (5) 934-950
Multiphase, multicomponent numerical models of long-term unsaturated-zone liquid and vapor movement were created for a thick alluvial basin at the Nevada Test Site to predict present-day liquid and vapor fluxes. The numerical models are based on recently developed conceptual models of unsaturated-zone moisture movement in thick alluvium that explain present-day...
Nitrogen sources and cycling in the San Francisco Bay estuary: A nitrate dual isotopic composition approach
Scott D. Wankel, C. Kendall, C.A. Francis, A. Paytan
2006, Limnology and Oceanography (51) 1654-1664
We used the dual isotopic composition of nitrate (δ15N and δ18O) within the estuarine system of San Francisco (SF) Bay, California, to explore the utility of this approach for tracing sources and cycling of nitrate (NO2−). Surface water samples from 49 sites within the estuary were sampled during July–August 2004....
