Comparisons of watershed sulfur budgets in southeast Canada and northeast US: New approaches and implications
Myron J. Mitchell, Gary Lovett, Scott Bailey, Fred Beall, Doug Burns, Don Buso, Thomas A. Clair, Francois Courchesne, Louis Duchesne, Cathy Eimers, Ivan Fernandez, Daniel Houle, Dean S. Jeffries, Gene E. Likens, Michael D. Moran, Christopher Rogers, Donna Schwede, Jamie Shanley, Kathleen C. Weathers, Robert Vet
2011, Biogeochemistry (103) 181-207
Most of eastern North America receives elevated levels of atmospheric deposition of sulfur (S) that result from anthropogenic SO2 emissions from fossil fuel combustion. Atmospheric S deposition has acidified sensitive terrestrial and aquatic ecosystems in this region; however, deposition has been declining since the 1970s, resulting in some recovery in previously...
Potential for water salvage by removal of non-native woody vegetation from dryland river systems
T.M. Doody, P.L. Nagler, E. P. Glenn, G. W. Moore, K. Morino, K. R. Hultine, R.G. Benyon
2011, Hydrological Processes (25) 4117-4131
Globally, expansion of non-native woody vegetation across floodplains has raised concern of increased evapotranspiration (ET) water loss with consequent reduced river flows and groundwater supplies. Water salvage programs, established to meet water supply demands by removing introduced species, show little documented evidence of program effectiveness. We use two case studies...
The rise and fall of Lake Bonneville between 45 and 10.5 ka
L. V. Benson, S.P. Lund, J. P. Smoot, D.E. Rhode, R. J. Spencer, K.L. Verosub, L.A. Louderback, C. A. Johnson, R. O. Rye, R.M. Negrini
2011, Quaternary International (235) 57-69
A sediment core taken from the western edge of the Bonneville Basin has provided high-resolution proxy records of relative lake-size change for the period 45.1–10.5 calendar ka (hereafter ka). Age control was provided by a paleomagnetic secular variation (PSV)-based age model for Blue Lake core BL04-4. Continuous records of δ18O...
Effects of model layer simplification using composite hydraulic properties
Eve L. Kuniansky, Nicasio Sepulveda
Lakshmanan Elango, editor(s)
2011, Book chapter, Hydraulic conductivity: Issues, determination and applications
Groundwater provides much of the fresh drinking water to more than 1.5 billion people in the world (Clarke et al., 1996) and in the United States more that 50 percent of citizens rely on groundwater for drinking water (Solley et al., 1998). As aquifer systems are developed for water supply,...
Waste isolation and contaminant migration - Tools and techniques for monitoring the saturated zone-unsaturated zone-plant-atmosphere continuum
Brian J. Andraski, David A. Stonestrom
T.J. Nicholson, H.D. Arlt, editor(s)
2011, Conference Paper, Proceedings of the workshop on engineered barrier performance related to low-level radioactive waste, decommissioning, and uranium mill tailings facilities (NUREG/CP-0195)
In 1976 the U.S. Geological Survey (USGS) began studies of unsaturated zone hydrology next to the Nation’s first commercial disposal facility for low-level radioactive waste (LLRW) near Beatty, NV. Recognizing the need for long-term data collection, the USGS in 1983 established research management areas in the vicinity of the waste-burial...
Potential increase in floods in California's Sierra Nevada under future climate projections
T. Das, M. D. Dettinger, D.R. Cayan, H.G. Hidalgo
2011, Climatic Change (109) 71-94
California’s mountainous topography, exposure to occasional heavily moisture-laden storm systems, and varied communities and infrastructures in low lying areas make it highly vulnerable to floods. An important question facing the state—in terms of protecting the public and formulating water management responses to climate change—is “how might future climate changes affect...
Alteration of streamflow magnitudes and potential ecological consequences: A multiregional assessment
Daren M. Carlisle, David M. Wolock, Michael R. Meador
2011, Frontiers in Ecology and the Environment (9) 264-270
Human impacts on watershed hydrology are widespread in the US, but the prevalence and severity of stream‐flow alteration and its potential ecological consequences have not been quantified on a national scale. We assessed streamflow alteration at 2888 streamflow monitoring sites throughout the conterminous US. The magnitudes of mean annual (1980–2007)...
Alteration of streamflow magnitudes and potential ecological consequences: A multiregional assessment
Daren M. Carlisle, David M. Wolock, Michael R. Meador
2011, Frontiers in Ecology and the Environment (9) 264-270
Human impacts on watershed hydrology are widespread in the US, but the prevalence and severity of stream-flow alteration and its potential ecological consequences have not been quantified on a national scale. We assessed streamflow alteration at 2888 streamflow monitoring sites throughout the conterminous US. The magnitudes of mean annual (1980–2007)...
A Digital Hydrologic Network Supporting NAWQA MRB SPARROW Modeling--MRB_E2RF1WS
J. W. Brakebill, S.E. Terziotti
2011, Report
A digital hydrologic network was developed to support SPAtially Referenced Regression on Watershed attributes (SPARROW) models within selected regions of the United States. These regions correspond with the U.S. Geological Survey's National Water Quality Assessment (NAWQA) Program Major River Basin (MRB) study units 2, 3, 4, 5, and 7 (Preston...
Biological and geochemical controls on diel dissolved inorganic carbon cycling in a low-order agricultural stream: Implications for reach scales and beyond
Craig Tobias, J.K. Bohlke
2011, Chemical Geology (283) 18-30
Movement of dissolved inorganic carbon (DIC) through the hydrologic cycle is an important component of global carbon budgets, but there is considerable uncertainty about the controls of DIC transmission from landscapes to streams, and through river networks to the oceans. In this study, diel measurements of DIC, d13C-DIC, dissolved oxygen...
GAGES-II: Geospatial Attributes of Gages for Evaluating Streamflow
James A. Falcone
2011, Report
This dataset, termed "GAGES II", an acronym for Geospatial Attributes of Gages for Evaluating Streamflow, version II, provides geospatial data and classifications for 9,322 stream gages maintained by the U.S. Geological Survey (USGS). It is an update to the original GAGES, which was published as a Data Paper on the...
U.S. Geological Survey: A synopsis of Three-dimensional Modeling
Linda J. Jacobsen, Pierre D. Glynn, Geoff A. Phelps, Randall C. Orndorff, Gerald W. Bawden, V. J. S. Grauch
2011, Book chapter, Chapter 13 in <i>Synopsis of Current Three-dimensional Geological Mapping and Modeling in Geological Survey Organizations</i>
The U.S. Geological Survey (USGS) is a multidisciplinary agency that provides assessments of natural resources (geological, hydrological, biological), the disturbances that affect those resources, and the disturbances that affect the built environment, natural landscapes, and human society. Until now, USGS map products have been generated and distributed primarily as 2-D...
Measurement of net nitrogen and phosphorus mineralization in wetland soils using a modification of the resin-core technique
Gregory B. Noe
2011, Biogeochemistry (75) 760-770
A modification of the resin-core method was developed and tested for measuring in situ soil N and P net mineralization rates in wetland soils where temporal variation in bidirectional vertical water movement and saturation can complicate measurement. The modified design includes three mixed-bed ion-exchange resin bags located above and three...
Simulating effects of microtopography on wetland specific yield and hydroperiod
David M. Summer
Xixi Wang, editor(s)
2011, Book chapter, Modeling hydrologic effects of microtopographic features
Specific yield and hydroperiod have proven to be useful parameters in hydrologic analysis of wetlands. Specific yield is a critical parameter to quantitatively relate hydrologic fluxes (e.g., rainfall, evapotranspiration, and runoff) and water level changes. Hydroperiod measures the temporal variability and frequency of land-surface inundation. Conventionally, hydrologic analyses used these...
A Digital Hydrologic Network Supporting NAWQA MRB SPARROW Modeling--MRB_E2RF1
J. W. Brakebill, S.E. Terziotti
2011, Report
A digital hydrologic network was developed to support SPAtially Referenced Regression on Watershed attributes (SPARROW) models within selected regions of the United States. These regions correspond with the U.S. Geological Survey's National Water Quality Assessment (NAWQA) Program Major River Basin (MRB) study units 2, 3, 4, 5, and 7 (Preston...
Re-establishing marshes can return carbon sink functions to a current carbon source in the Sacramento-San Joaquin Delta of California, USA
Robin L. Miller, Roger Fujii
Paul E. Schmidt, editor(s)
2011, Book chapter, River deltas: Types, structures and ecology
The Sacramento-San Joaquin Delta in California was an historic, vast inland freshwater wetland, where organic soils almost 20 meters deep formed over the last several millennia as the land surface elevation of marshes kept pace with sea level rise. A system of levees and pumps were installed in the late...
A Digital Hydrologic Network Supporting NAWQA MRB SPARROW Modeling--MRB_E2RF1WS
J. W. Brakebill, S.E. Terziotti
2011, Report
A digital hydrologic network was developed to support SPAtially Referenced Regression on Watershed attributes (SPARROW) models within selected regions of the United States. These regions correspond with the U.S. Geological Survey's National Water Quality Assessment (NAWQA) Program Major River Basin (MRB) study units 2, 3, 4, 5, and 7 (Preston...
On the Hydrologic Adjustment of Climate-Model Projections: The Potential Pitfall of Potential Evapotranspiration
Paul C.D. Milly, Krista A. Dunne
2011, Earth Interactions (15) 1-14
Hydrologic models often are applied to adjust projections of hydroclimatic change that come from climate models. Such adjustment includes climate-bias correction, spatial refinement ("downscaling"), and consideration of the roles of hydrologic processes that were neglected in the climate model. Described herein is a quantitative analysis of the effects of hydrologic...
Helicopter magnetic and electromagnetic surveys at Mounts Adams, Baker and Rainier, Washington: implications for debris flow hazards and volcano hydrology
Carol A. Finn, Maria Deszcz-Pan
2011, Conference Paper, International Workshop on Gravity, Electrical & Magnetic Methods and Their Applications, Beijing, China, October 10-13, 2011
High‐resolution helicopter magnetic and electromagnetic (HEM) data flown over the rugged, ice‐covered Mt. Adams, Mt. Baker and Mt. Rainier volcanoes (Washington), reveal the distribution of alteration, water and ice thickness essential to evaluating volcanic landslide hazards. These data, combined with geological mapping and rock property measurements, indicate the presence of...
The dynamical core, physical parameterizations, and basic simulation characteristics of the atmospheric component AM3 of the GFDL global coupled model CM3
L.J. Donner, B.L. Wyman, R.S. Hemler, L.W. Horowitz, Y. Ming, M. Zhao, J.-C. Golaz, P. Ginoux, S.-J. Lin, M.D. Schwarzkopf, J. Austin, G. Alaka, W.F. Cooke, T.L. Delworth, S.M. Freidenreich, C.T. Gordon, S.M. Griffies, I.M. Held, W.J. Hurlin, S.A. Klein, T.R. Knutson, A.R. Langenhorst, H.-C. Lee, Y. Lin, B.I. Magi, S.L. Malyshev, Paul Milly, V. Naik, M.J. Nath, R. Pincus, J.J. Ploshay, V. Ramaswamy, C.J. Seman, E. Shevliakova, J.J. Sirutis, W.F. Stern, R.J. Stouffer, R.J. Wilson, M. Winton, A.T. Wittenberg, F. Zeng
2011, Journal of Climate (24) 3484-3519
The Geophysical Fluid Dynamics Laboratory (GFDL) has developed a coupled general circulation model (CM3) for the atmosphere, oceans, land, and sea ice. The goal of CM3 is to address emerging issues in climate change, including aerosol–cloud interactions, chemistry–climate interactions, and coupling between the troposphere and stratosphere. The model is also...
The secret to successful solute-transport modeling
Leonard F. Konikow
2011, Ground Water (49) 144-159
Modeling subsurface solute transport is difficult—more so than modeling heads and flows. The classical governing equation does not always adequately represent what we see at the field scale. In such cases, commonly used numerical models are solving the wrong equation. Also, the transport equation is hyperbolic where advection is dominant,...
Geochemical analysis of Atlantic rim water, Carbon County, Wyoming: New applications for characterizing coalbed natural gas reservoirs
J.F. McLaughlin, C.D. Frost, Shruti Sharma
2011, American Association of Petroleum Geologists Bulletin (95) 191-217
Coalbed natural gas (CBNG) production typically requires the extraction of large volumes of water from target formations, thereby influencing any associated reservoir systems. We describe isotopic tracers that provide immediate data on the presence or absence of biogenic natural gas and the identify methane-containing reservoirs are hydrologically confined. Isotopes of...
Modeling of hydroecological feedbacks predicts distinct classes of landscape pattern, process, and restoration potential in shallow aquatic ecosystems
Laurel G. Larsen, Judson W. Harvey
2011, Geomorphology (126) 279-296
It is widely recognized that interactions between vegetation and flow cause the emergence of channel patterns that are distinct from the standard Schumm classification of river channels. Although landscape pattern is known to be linked to ecosystem services such as habitat provision, pollutant removal, and sustaining biodiversity, the mechanisms...
Atomic weights of the elements 2009 (IUPAC technical report)
M.E. Wieser, Tyler B. Coplen
2011, Pure and Applied Chemistry (83) 359-396
The biennial review of atomic-weight determinations and other cognate data has resulted in changes for the standard atomic weights of 11 elements. Many atomic weights are not constants of nature, but depend upon the physical, chemical, and nuclear history of the material. The standard atomic weights of 10 elements having...
New aerial survey and hierarchical model to estimate manatee abundance
Catherine A. Langtimm, Robert Dorazio, B.M. Stith, T.J. Doyle
2011, Journal of Wildlife Management (75) 399-412
Monitoring the response of endangered and protected species to hydrological restoration is a major component of the adaptive management framework of the Comprehensive Everglades Restoration Plan. The endangered Florida manatee (Trichechus manatus latirostris) lives at the marine-freshwater interface in southwest Florida and is likely to be affected by hydrologic restoration....
