Simulation of the shallow aquifer in the vicinity of Silver Lake, Washington County, Wisconsin, using analytic elements
C. P. Dunning, Judith Coffman Thomas, Yu-Feng Lin
2003, Water-Resources Investigations Report 2002-4204
Shallow ground-water flow in the vicinity of Silver Lake, Washington County, Wisconsin, was investigated to develop an understanding of the hydrology of the shallow aquifer, define a water balance for the lake, delineate ground-water recharge areas for the lake, and to estimate solute flux toward the lake. A single-layer, steady-state,...
Geohydrology of Recharge and Seawater Intrusion in the Pajaro Valley, Santa Cruz and Monterey Counties, California
Randall T. Hanson
2003, Fact Sheet 044-03
The U.S. Geological Survey (USGS) in cooperation with the Pajaro Valley Water Management Agency (PVWMA), has completed the collection and analyses of geologic, hydrologic, geophysical, and geochemical data in the coastal aquifer systems of the Pajaro Valley (fig. 1). These data were collected to delineate the geohydrologic framework of seawater intrusion,...
Environmental impacts of petroleum production--Initial results from the Osage-Skiatook Petroleum Environmental Research Sites, Osage County, Oklahoma
Yousif K. Kharaka, James K. Otton
2003, Water-Resources Investigations Report 2003-4260
Exploration for and production of petroleum have caused major detrimental impacts to soils, surface and ground waters, and the local ecosystems in the United States. These impacts arise primarily from the improper disposal of large volumes of saline water produced with oil and gas, from accidental hydrocarbon and produced water...
Using water-quality profiles to characterize seasonal water quality and loading in the upper Animas River basin, southwestern Colorado
Kenneth J. Leib, M. Alisa Mast, Winfield G. Wright
2003, Water-Resources Investigations Report 2002-4230
One of the important types of information needed to characterize water quality in streams affected by historical mining is the seasonal pattern of toxic trace-metal concentrations and loads. Seasonal patterns in water quality are estimated in this report using a technique called water-quality profiling. Water-quality profiling allows land managers and...
Organic carbon trends, loads, and yields to the Sacramento-San Joaquin Delta, California, water years 1980 to 2000
Dina K. Saleh, Joseph L. Domagalski, Charles R. Kratzer, Donna L. Knifong
2003, Water-Resources Investigations Report 2003-4070
Organic carbon, nutrient, and suspended sediment concentration data were analyzed for the Sacramento and San Joaquin River Basins for the period 1980-2000. The data were retrieved from three sources: the U.S. Geological Survey's National Water Information System, the U.S. Environmental Protection Agency's Storage and Retrieval System, and the California Interagency...
Lewis and Clark's observations of geomorphology and hydrology
John A. Moody
2003, Fact Sheet 004-03
Effects of hydrology on red mangrove recruits
Thomas W. Doyle
2003, Fact Sheet 029-03
Coastal wetlands along the Gulf of Mexico have been experiencing significant shifts in hydrology and salinity levels over the past century as a result of changes in sea level and freshwater drainage patterns. Local land management in coastal zones has also impacted the hydrologic regimes of salt marshes and mangrove...
Investigation of water quality in the Great Sand Dunes National Monument and Preserve, Saguache County, Colorado, February 1999 through September 2000: Qualifying for outstanding waters designation
Sheryl A. Ferguson
2003, Water-Resources Investigations Report 2002-4196
Great Sand Dunes National Monument and Preserve is located on the eastern side of the San Luis Valley in south-central Colorado. The monument covers 60.4 square miles in Saguache and Alamosa Counties and lies at the base of the Sangre de Cristo Mountains, where a unique combination of climate, topography,...
Flow origin, drainage area, and hydrologic characteristics for headwater streams in the mountaintop coal-mining region of Southern West Virginia, 2000-01
Katherine S. Paybins
2003, Water-Resources Investigations Report 2002-4300
Characteristics of perennial and intermittent headwater streams were documented in the mountaintop removal coal-mining region of southern West Virginia in 2000?01. The perennial-flow origin points were identified in autumn during low base-flow conditions. The intermittent-flow origin points were identified in late winter and early spring during high base-flow conditions....
Salinity and temperature in South San Francisco Bay, California, at Dumbarton Bridge: Results from the 1999-2002 water years and an overview of previous data
Laurence E. Schemel, Randall L. Brown, Norton W. Bell
2003, Water-Resources Investigations Report 2003-4005
No abstract available. ...
Interactions between surface water and ground water and effects on mercury transport in the north-central Everglades
Judson W. Harvey, Steven L. Krupa, Cynthia Gefvert, Robert H. Mooney, Jungyill Choi, Susan A. King, Jefferson B. Giddings
2002, Water-Resources Investigations Report 2002-4050
The hydrology of the north-central Everglades was altered substantially in the past century by canal dredging, land subsidence, ground-water pumping, and levee construction. Vast areas of seasonal and perennial wetlands were converted to uses for agriculture, light industry, and suburban development. As the catchment area for the Everglades decreased, so...
Ecological dynamics of wetlands at Lisbon Bottom, Big Muddy National Fish and Wildlife Refuge, Missouri
Duane Chapman, Ellen A. Ehrhardt, James F. Fairchild, Robert B. Jacobson, Barry C. Poulton, Linda C. Sappington, Brian P. Kelly, William R. Mabee
2002, Open-File Report 2004-1036
The study documented the interaction between hydrology and the biological dynamics within a single spring season at Lisbon Bottom in 1999. The study goal was to provide information necessary for resource managers to develop management strategies for this and other units of the Big Muddy National Fish and Wildlife Refuge....
Structural-group quantitation by CP/MAS 13C NMR measurements of dissolved organic matter from natural waters
R.L. Wershaw, George R. Aiken, J. A. Leenheer, J. Tregellas
G. Davis, E.A. Ghabbour, editor(s)
2002, Book chapter, Humic substances: Versatile components of plants, soils and water
No abstract available. ...
Property transfer from particle and aggregate size to water retention [property-transfer models]
John R. Nimmo
2002, Book chapter, Methods of soil analysis: Part 4 physical methods
No abstract available. ...
Level I water-quality inventory and monitoring, Richmond National Battlefield Park, Virginia
Roger M. Moberg, Karen C. Rice
2002, Report
The U.S. Geological Survey conducted a Level I Water-Quality Inventory and Monitoring (WAQIM) data-collection effort for Richmond National Battlefield Park (Richmond NBP) from August 2001 through April 2002. The primary objective of the WAQIM program was to provide the National Park Service (NPS) and Richmond NBP with at least a...
An ancient duality
Karen C. Rice
2002, People, Land, and Water (9) 29-29
No abstract available....
Annual primary production: Patterns and mechanisms of change in a nutrient-rich tidal ecosystem
Alan D. Jassby, James E. Cloern, B.E. Cole
2002, Limnology and Oceanography (47) 698-712
Although nutrient supply often underlies long-term changes in aquatic primary production, other regulatory processes can be important. The Sacramento-San Joaquin River Delta, a complex of tidal waterways forming the landward portion of the San Francisco Estuary, has ample nutrient supplies, enabling us to examine alternate regulatory mechanisms over...
Potential effects of global warming on the Sacramento/San Joaquin watershed and the San Francisco estuary
Noah Knowles, Daniel R. Cayan
2002, Geophysical Research Letters (29) 38-1-38-4
California's primary hydrologic system, the San Francisco estuary and its upstream watershed, is vulnerable to the regional hydrologic consequences of projected global climate change. Projected temperature anomalies from a global climate model are used to drive a combined model of watershed hydrology and estuarine dynamics. By 2090, a projected temperature...
Hydrologic processes and nutrient dynamics in a pristine mountain catchment
F. Richard Hauer, Daniel B. Fagre, Jack A. Stanford
2002, Verhandlungen der Internationalen Vereinigung fur Theoretische und Angewandte Limnologie (28) 1490-1493
Nutrient dynamics in watersheds have been used as an ecosystem-level indicator of overall ecosystem function or response to disturbance (e.g. Borman.N et al. 1974, WEBSTER et al. 1992). The examination of nutrients has been evaluated to determine responses to logging practices or other changes in watershed land use. Nutrient dynamics...
Mercury loading and methylmercury production and cycling in high-altitude lakes from the Western United States
David P. Krabbenhoft, Mark L. Olson, John F. DeWild, David W. Clow, Robert G. Striegl, Mark M. Dornblaser, Peter C. Van Metre
2002, Water, Air, and Soil Pollution: Focus (2) 233-249
Studies worldwide have shown that mercury (Hg) is a ubiquitous contaminant, reaching even the most remote environments such as high-altitude lakes via atmospheric pathways. However, very few studies have been conducted to assess Hg contamination levels of these systems. We sampled 90 mid-latitude, high-altitude lakes from seven national parks in...
Mercury on the move during snowmelt in Vermont
James B. Shanley, P. F. Schuster, M.M. Reddy, D.A. Roth, Howard E. Taylor, G. Aiken
2002, Eos, Transactions, American Geophysical Union (83) 45-48
Although mercury (Hg) emissions peaked in the United States over the last 20 to 40 years and are now declining, they remain well above natural background levels in soils and sediments. Only a small fraction of the Hg deposited from the atmosphere to the terrestrial landscape runs off in streamflow....
Improving a regional model using reduced complexity and parameter estimation
Victor A. Kelson, Randall J. Hunt, Henk M. Haitjema
2002, Groundwater (40) 132-143
The availability of powerful desktop computers and graphical user interfaces for ground water flow models makes possible the construction of ever more complex models. A proposed copper-zinc sulfide mine in northern Wisconsin offers a unique case in which the same hydrologic system has been modeled using a variety of...
Final report: Initial ecosystem response of salt marshes to ditch plugging and pool creation: Experiments at Rachel Carson National Wildlife Refuge (Maine)
S.C. Adamowicz, C. T. Roman
2002, Book
This study evaluates the response of three salt marshes, associated with the Rachel Carson National Wildlife Refuge (Maine), to the practice of ditch plugging. Drainage ditches, originally dug to drain the marsh for mosquito control or to facilitate salt hay farming, are plugged with marsh peat in an effort...
Investigation of the geology and hydrology of the Coconino Plateau of northern Arizona: a project of the Arizona Rural Watershed Initiative
Marilyn E. Flynn, Donald J. Bills
2002, Fact Sheet 113-02
The water resources of the Coconino Plateau in northern Arizona are under increasing demand as a result of development. The population of this arid region continues to grow, and the number of visitors to the many national and state parks and monuments in the region has increased annually. The sustainability,...
Glacial ice cores reveal a record of natural and anthropogenic atmospheric mercury deposition for the last 270 years
David P. Krabbenhoft, Paul F. Schuster
2002, Fact Sheet 051-02
No abstract available....
