D. Kirk Nordstrom
1999, Book chapter
No abstract available. ...
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Publication Extents
Not all publications have extents, not all extents are completely accurateD. Kirk Nordstrom
Geoffrey S. Plumlee, M.J. Logsdon, editor(s)
1999, Book chapter, The environmental geochemistry of mineral deposits: Part A processes, methods and health issues
No abstract available. ...
L.N. Plummer, Eurybiades Busenberg
P. Cook, A. Herczeg, editor(s)
1999, Book chapter, Environmental tracers in subsurface hydrology
No abstract available. ...
Kenneth J. Leib, Winfield G. Wright, M. Alisa Mast
1999, Book chapter, Tailings and mind waste '99
No abstract available. ...
John R. Nimmo
1999, Book chapter, Characterization and measurement of the hydraulic properties of unsaturated porous media, part 2
No abstract available. ...
Theresa S. Presser
D. Alexander, Rhodes W. Fairbridge, editor(s)
1999, Book chapter, Encyclopedia of environmental science
No abstract available. ...
D.E. Anderson
1999, Book chapter, Unsaturated zone hydrology for scientists and engineers
No abstract available....
D.E. Anderson
1999, Book chapter, Instructor's solution manual for unsaturated zone hydrology for scientists and engineers
No abstract available. ...
Christopher Schubert
1999, Water-Resources Investigations Report 98-4181
The Peconic Estuary, at the eastern end of Long Island, has been plagued by a recurrent algal bloom that has caused the severe decline of local marine resources. Although the onset, duration, and cessation of the bloom remain unpredictable, ground-water discharge has been shown to affect surface-water quality in the...
John C. Risley, Antonius Laenen
1999, Water-Resources Investigations Report 98-4198
The Williamson River Basin, located in south-central Oregon, has a drainage area of approximately 3,000 square miles. The Sprague River, which flows into the Williamson River Basin, has a drainage area of 1,580 square miles. Together, the Williamson and Sprague Rivers supply about one-half of the inflow to Upper Klamath...
D.R. Cayan, D. H. Peterson, L. Riddle, M. D. Dettinger, R. Smith
1999, Conference Paper, Proceedings of 14th Conference on Hydrology
Just about every year there is one major first pulse of snowmelt runoff (streamflow) that marks the transition from winter to spring in high elevation, snowmelt driven watersheds in the western United States. As a index, we have used the record of relatively pristine streamflow at the Merced River, Happy...
Alan C. Riggs, Robert G. Striegl, Florentino B. Maestas
David W. Morganwalp, Herbert T. Buxton, editor(s)
1999, Report, U.S. Geological Survey Toxic Substances Hydrology Program: Proceedings of the technical meeting, Charleston, South Carolina, March 8-12, 1999: Volume 3 (Part C) (WRI 99-4018C)
Automated opaque flux-chamber measurements of soil carbon dioxide (CO2) flux (soil respiration) into the atmosphere at the Amargosa Desert Research Site show seasonal and diel cycles of soil respiration that are closely linked with soil temperature and soil moisture. During 1998, soil respiration increased with soil warming through spring, reaching...
David A. Stonestrom, David E. Prudic, Robert G. Striegl
David W. Morganwalp, Herbert T. Buxton, editor(s)
1999, Report, U.S. Geological Survey Toxic Substances Hydrology Program: Proceedings of the technical meeting, Charleston, South Carolina, March 8-12, 1999: Volume 3 (Part C) (WRI 99-4018C)
The isotopic composition of water in deep unsaturated zones is of interest because it provides information relevant to hydrologic processes and contaminant migration. Profiles of oxygen-18 (18O), deuterium (D), and tritium (3H) from a 110-meter deep unsaturated zone, together with data on the isotopic composition of ground water...
Richard W. Healy, Robert G. Striegl, Robert L. Michel, David E. Prudic, Brian J. Andraski
David W. Morganwalp, Herbert T. Buxton, editor(s)
1999, Report, U.S. Geological Survey Toxic Substances Hydrology Program: Proceedings of the technical meeting, Charleston, South Carolina, March 8-12, 1999: Volume 3 (Part C) (WRI 99-4018C)
Samples of water vapor in soil gas were obtained at the U.S. Geological Survey's Amargosa Desert Research Site in 1997 and 1998 from a depth of 1.5 m (meters) within a 300 m by 300 m grid that lies immediately to the south and west of a low-level radioactive-waste disposal...
Brian J. Andraski, David A. Stonestrom
David W. Morganwalp, Herbert T. Buxton, editor(s)
1999, Report, U.S. Geological Survey Toxic Substances Hydrology Program: Proceedings of the technical meeting, Charleston, South Carolina, March 8-12, 1999: Volume 3 (Part C) (WRI 99-4018C)
Studies at the U.S. Geological Survey Amargosa Desert Research Site have focused on characterizing factors and processes that control transport and fate of contaminants in arid environments. This paper summarizes research results that have been published through 1998. Results have improved understanding of water and gas movement through a thick...
D. M. Sumner, D.E. Rolston, M.A. Marino
1999, Journal of Hydrologic Engineering (4) 65-69
The design of infiltration basins used to dispose of treated wastewater or for aquifer recharge often requires estimation of ground-water mounding beneath the basin. However, the effect that the unsaturated zone has on water-table response to basin infiltration often has been overlooked in this estimation. A comparison was made between...
P. J. Phillips, G. R. Wall, E.M. Thurman, D. A. Eckhardt, J. Vanhoesen
1999, Environmental Science & Technology (33) 3531-3537
Water samples collected during April−November 1997 from tile drains beneath cultivated fields in central New York indicate that two metabolites of the herbicide metolachlormetolachlor ESA (ethanesulfonic acid) and OA (oxanilic acid)can persist in agricultural soils for 4 or more...
Linda L. Campbell Rehmann, Claire Welty, Ronald W. Harvey
1999, Water Resources Research (35) 1987-2006
A large-scale model of virus transport in aquifers is derived using spectral perturbation analysis. The effects of spatial variability in aquifer hydraulic conductivity and virus transport (attachment, detachment, and inactivation) parameters on large-scale virus transport are evaluated. A stochastic mean model of virus transport is developed by linking a simple...
F. D. Hostettler, W. E. Pereira, K.A. Kvenvolden, A. VanGeen, S. N. Luoma, C. C. Fuller, R. Anima
1999, Marine Chemistry (64) 115-127
San Francisco Bay is one of the world's largest urbanized estuarine systems. Its water and sediment receive organic input from a wide variety of sources; much of this organic material is anthropogenically derived. To document the spatial and historical record of the organic contaminant input, surficial sediment from 17 sites...
D. L. Peterson, D.G. Silsbee, Kelly T. Redmond
1999, Northwest Science (73) 121-130
Tree-ring chronologies for mountain hemlock (Tsuga mertensiana) were used to reconstruct the water level of Crater Lake, a high-elevation lake in the southern Cascade Range of Oregon. Reconstructions indicate that lake level since the late 1980s has been lower than at any point in the last 300 years except the early 1930s...
Gary L. Larson, G.A. Lomnicky, Robert Hoffman, W.J. Liss, E. Deimling
1999, Environmental Management (24) 219-228
A basic knowledge of the physical and chemical characteristics of lakes is needed by management to make informed decisions to protect water resources. In this study we investigated some of the physical and chemical characteristics of 58 lakes in alpine, subalpine, and forest vegetation zones in a natural area (North...
W. E. Pereira, Frances D. Hostettler, Samuel N. Luoma, A. VanGeen, Christopher C. Fuller, R. J. Anima
1999, Marine Chemistry (64) 99-113
Dated sediment cores collected from Richardson and San Pablo Bays in San Francisco Bay were used to reconstruct a history of polycyclic aromatic hydrocarbon (PAH) contamination. The sedimentary record of PAHs in Richardson Bay shows that anthropogenic inputs have increased since the turn of the century, presumably as a result...
Sharon M. Ewe, Leonel S. Sternberg, David E. Busch
1999, Forest Ecology and Management (118) 139-148
Rockland pine forests of south Florida dominated by Pinus elliottii var. densa characteristically have poor soil development in relation to neighboring hardwood hammocks. This has led to the hypothesis that Everglades hammock trees are more reliant on soil moisture derived from local precipitation whereas pineland plants must depend more on...
Michelle I. Hornberger, S. N. Luoma, A. VanGeen, C. Fuller, R. Anima
1999, Marine Chemistry (64) 39-55
Concentrations of Ag, Al, Cr, Cu, Fe, Hg, Mn, Ni, Pb, V and Zn were determined in six sediment cores from San Francisco Bay (SFB) and one sediment core in Tomales Bay (TB), a reference estuary. SFB cores were collected from between the...
A. VanGeen, N. J. Valette-Silver, S. N. Luoma, C. C. Fuller, M. Baskaran, F. Tera, J. Klein
1999, Marine Chemistry (64) 29-38
Industrialization and urbanization around San Francisco Bay as well as mining and agriculture in the watersheds of the Sacramento and San Joaquin rivers have profoundly modified sedimentation patterns throughout the estuary. We provide some constraints on the onset of these erosional disturbances with 10Be data for three sediment cores: two...