Recovery of Ground-Water Levels From 1988 to 2003 and Analysis of Potential Water-Supply Management Options in Critical Area 1, East-Central New Jersey
Frederick J. Spitz, Martha K. Watt, Vincent T. dePaul
2008, Scientific Investigations Report 2007-5193
Water levels in four confined aquifers in the New Jersey Coastal Plain within Water Supply Critical Area 1 have recovered as a result of reductions in ground-water withdrawals initiated by the State in the late 1980s. The aquifers are the Wenonah-Mount Laurel, the Upper and Middle Potomac-Raritan-Magothy, and Englishtown aquifer...
Can we dismiss the effect of changes in land‐based water storage on sea‐level rise?
Thomas G. Huntington
2008, Hydrological Processes (22) 717-723
The rate of global mean sea-level rise (SLR) during the 20th century is estimated to be 1.7 mm yr−1 ±0.3 yr−1 (Church and White, 2006). SLR during the 20th century was a result of thermal expansion of the oceans and the release of water from terrestrial storage reservoirs (Bindoff et al., 2007)....
Principal hydrologic responses to climatic and geologic variability in the Sierra Nevada, California
David H. Peterson, Iris Stewart, Fred Murphy
2008, San Francisco Estuary and Watershed Science 1-21
Sierra Nevada snowpack is a critical water source for California’s growing population and agricultural industry. However, because mountain winters and springs are warming, on average, precipitation as snowfall relative to rain is decreasing, and snowmelt is earlier. The changes are stronger at mid-elevations than at higher elevations. The result is...
ET–The key to balancing the water budget in the Southwest
Michael T. Moreo, Nancy A. Damar, Randell J. Laczniak
2008, Southwest Hydrology (7) 28-33
Throughout the Southwest, state and federal water-resource managers are becoming increasingly concerned about the impacts of future groundwater development on the region’s limited water resources, environmentally sensitive ecosystems, and rural lifestyle. To address their concerns, scientists and engineers are deploying physically based mathematical models to assess and predict the potential...
Post-Wildfire Hydrologic Hazards in the Wildland Urban Interface of Colorado and the Western United States
M. R. Stevens, C. R. Bossong, M.G. Rupert, A.J. Ranalli, E.W. Cassidy, A.D. Druliner
2008, Fact Sheet 2007-3036
Following a wildfire, such as the 2002 Missionary Ridge fire, a number of hydrologic hazards may develop that can have an important impact on water resources, businesses, homes, reservoirs, roads, and utilities in the wildland urban interface (areas where homes and commercial developments are interspersed with wildlands) in mountainous areas...
Magnetotelluric Data, San Luis Valley, Colorado
Brian D. Rodriguez, Jackie M. Williams
2008, Open-File Report 2007-1405
The San Luis Valley region population is growing. Water shortfalls could have serious consequences. Future growth and land management in the region depend on accurate assessment and protection of the region?s ground-water resources. An important issue in managing the ground-water resources is a better understanding of the hydrogeology of the...
Environmental presence and persistence of pharmaceuticals: An overview
Susan T. Glassmeyer, Dana W. Koplin, Edward T. Furlong, M. Focazio
2008, Book chapter, Fate of pharmaceuticals in the environment and in water treatment systems
Emerging contaminants (ECs) in the environment – that is, chemicals with domestic, municipal, industrial, or agricultural sources that are not commonly monitored but may have the potential for adverse environmental effects – is a rapidly growing field of research. The use of “emerging” is not intended to infer that the...
Use of a groundwater flow model to assess the location, extent, and hydrologic properties of faults in the Rialto-Colton Basin, California
Linda R. Woolfenden
Eileen Poeter, Mary C. Hill, Chunmiao Zheng, editor(s)
2008, Conference Paper, MODFLOW and More 2008: Ground water and public policy — Conference proceedings
Faults within a groundwater basin can greatly influence the direction of groundwater flow and contaminant migration. Existing steady-state and transient groundwater flow models were used to assess the location, extent, and hydrologic properties of two alternative fault configurations within the Rialto-Colton basin. Adjustments were made to the hydrologic properties of...
Pre- and post-eruptive investigations of gas and water samples from Mount St. Helens, Washington, 2002 to 2005
D. Bergfeld, William C. Evans, Kenneth A. McGee, Kurt R. Spicer
David R. Sherrod, William E. Scott, Peter H. Stauffer, editor(s)
2008, Professional Paper 1750-25
Samples of gas and water from thermal springs in Loowit and Step canyons and creeks that drain the crater at Mount St. Helens have been collected since October 2004 to monitor the flux of dissolved magmatic volatiles in the hydrologic system. The changing composition of the waters highlights a trend...
Relating streamflow characteristics to specialized insectivores in the Tennessee River Valley: a regional approach
Rodney R. Knight, M. Brian Gregory, Amy K. Wales
2008, Ecohydrology (1) 394-407
Analysis of hydrologic time series and fish community data across the Tennessee River Valley identified three hydrologic metrics essential to habitat suitability and food availability for insectivorous fish communities in streams of the Tennessee River Valley: constancy (flow stability or temporal invariance), frequency of moderate flooding (frequency of habitat disturbance),...
Subsidence reversal in a re-establish wetland in the Sacramento-San Joaquin Delta, California, USA
Robin L. Miller, Miranda S. Fram, Roger Fujii, Gail A. Wheeler
2008, San Francisco Estuary and Watershed Science (6)
The stability of levees in the Sacramento-San Joaquin Delta is threatened by continued subsidence of Delta peat islands. Up to 6 meters of land-surface elevation has been lost in the 150 years since Delta marshes were leveed and drained, primarily from oxidation of peat soils. Flooding subsided peat islands halts...
Integration of regional hydrologic modeling using FORTRAN and ArcGIS
Alan L. Flint, Lorraine E. Flint
2008, Water Resources Impact (10) 31-35
Seasonal and spatial variability in dissolved organic matter quantity and composition from the Yukon River basin, Alaska
R.G.M. Spencer, George Aiken, Kimberly P. Wickland, Rob Striegl, Peter J. Hernes
2008, Global Biogeochemical Cycles (22)
[1] The seasonal and spatial variability of dissolved organic matter (DOM) quantity and chemical composition were investigated in the Yukon River basin of Alaska, United States, and northwestern Canada. Dissolved organic carbon (DOC), chromophoric DOM (CDOM), and dissolved lignin phenols were measured across a range of source...
Mining II: Acid mine drainage
D. Kirk Nordstrom
2008, Book chapter, Encyclopedia of environmental ethics and philosophy
No abstract available. ...
N-15 NMR study of the immobilization of 2,4- and 2,6-dinitrotoluene in aerobic compost
Kevin A. Thorn, J.C. Pennington, Kay R. Kennedy, Larry G. Cox, C.A. Hayes, B.E. Porter
2008, Environmental Science & Technology (42) 2542-2550
Large-scale aerobic windrow composting has been used to bioremediate washout lagoon soils contaminated with the explosives TNT (2,4,6-trinitrotoluene) and RDX (hexahydro-1,3,5-trinitro-1,3,5-triazine) at several sites within the United States. We previously used 15N NMR to investigate the reduction and binding of T15NT in aerobic bench -scale reactors simulating the conditions of windrow...
Numerical modeling of rainfall thresholds for shallow landsliding in the Seattle, Washington, area
Jonathan W. Godt, Jonathan P. McKenna
2008, Reviews in Engineering Geology (20) 121-136
The temporal forecasting of landslide hazard has typically relied on empirical relations between rainfall characteristics and landslide occurrence to identify conditions that may cause shallow landslides. Here, we describe an alternate, deterministic approach to define rainfall thresholds for landslide occurrence in the Seattle, Washington, area. This approach combines an infinite...
Application of synchrotron methods to assess the uptake of roadway-derived Zn by earthworms in an urban soil
S.M. Lev, E. R. Landa, K. Szlavecz, R. Casey, J. Snodgrass
2008, Mineralogical Magazine (72) 191-195
The impact of human activities on biogeochemical cycles in terrestrial environments is nowhere more apparent than in urban landscapes. Trace metals, collected on roadways and transported by storm water, may contaminate soils and sediments associated with storm water management systems. These systems will accumulate metals and associated sediments may reach...
A biodynamic understanding of dietborne metal uptake by a freshwater invertebrate
M.-N. Croteau, S. N. Luoma
2008, Environmental Science & Technology (42) 1801-1806
Aquatic organisms accumulate metals from dissolved and particulate phases. Dietborne metal uptake likely prevails in nature, but the physiological processes governing metal bioaccumulation from diet are not fully understood. We characterize dietborne copper, cadmium, and nickel uptake by a freshwater gastropod (Lymnaea stagnalis) both in terms of biodynamics and membrane...
Complex seasonal patterns of primary producers at the land-sea interface
J. E. Cloern, A.D. Jassby
2008, Ecology Letters (11) 1294-1303
Seasonal fluctuations of plant biomass and photosynthesis are key features of the Earth system because they drive variability of atmospheric CO2, water and nutrient cycling, and food supply to consumers. There is no inventory of phytoplankton seasonal cycles in nearshore coastal ecosystems where forcings from ocean,...
Factors controlling nitrogen release from two forested catchments with contrasting hydrochemical responses
S.F. Christopher, M.J. Mitchell, Michael McHale, E.W. Boyer, Douglas A. Burns, C. Kendall
2008, Hydrological Processes (22) 46-62
Quantifying biogeochemical cycles of nitrogen (N) and the associated fluxes to surface waters remains challenging, given the need to deal with spatial and temporal variability and to characterize complex and heterogeneous landscapes. We focused our study on catchments S14 and S15 located in the Adirondack Mountains...
Influences of organic matter and calcification rate on trace elements in aragonitic estuarine bivalve shells
R.K. Takesue, C. R. Bacon, J.K. Thompson
2008, Geochimica et Cosmochimica Acta (72) 5431-5445
A suite of elements (B, Na, Mg, S, K, Ca, V, Mn, Cr, Sr, and Ba) was measured in aragonitic shells of the estuarine bivalve Corbula amurensis, the Asian clam, using the Sensitive High-Resolution Ion MicroProbe with Reverse Geometry (SHRIMP RG). Our initial intent...
Nutrient dynamics as indicators of karst processes: Comparison of the Chalk aquifer (Normandy, France) and the Edwards aquifer (Texas, U.S.A.)
B.J. Mahler, D. Valdes, M. Musgrove, N. Massei
2008, Journal of Contaminant Hydrology (98) 36-49
Karst aquifers display a range of geologic and geomorphic characteristics in a wide range of climatic and land-use settings; identification of transport dynamics representative of karst aquifers in general could help advance our understanding of these complex systems. To this end, nutrient, turbidity, and major ion dynamics in response to...
Flood trends and river engineering on the Mississippi River system
N. Pinter, A.A. Jemberie, J.W.F. Remo, R.A. Heine, B.S. Ickes
2008, Geophysical Research Letters (35)
Along >4000 km of the Mississippi River system, we document that climate, land-use change, and river engineering have contributed to statistically significant increases in flooding over the past 100-150 years. Trends were tested using a database of >8 million hydrological measurements. A geospatial database of historical engineering construction was used...
Suspended sediment transport in the freshwater reach of the Hudson river estuary in eastern New York
G. R. Wall, E.A. Nystrom, S. Litten
2008, Estuaries and Coasts (31) 542-553
Deposition of Hudson River sediment into New York Harbor interferes with navigation lanes and requires continuous dredging. Sediment dynamics at the Hudson estuary turbidity maximum (ETM) have received considerable study, but delivery of sediment to the ETM through the freshwater reach of the estuary has received relatively little attention and...
Determination of dominant biogeochemical processes in a contaminated aquifer-wetland system using multivariate statistical analysis
S. E. Baez-Cazull, J.T. McGuire, I.M. Cozzarelli, M.A. Voytek
2008, Journal of Environmental Quality (37) 30-46
Determining the processes governing aqueous biogeochemistry in a wetland hydrologically linked to an underlying contaminated aquifer is challenging due to the complex exchange between the systems and their distinct responses to changes in precipitation, recharge, and biological activities. To evaluate temporal and spatial processes in the wetland-aquifer system, water samples...
