Effectiveness of the New Hampshire stream-gaging network in providing regional streamflow information
Scott A. Olson
2003, Water-Resources Investigations Report 2003-4041
The stream-gaging network in New Hampshire was analyzed for its effectiveness in providing regional information on peak-flood flow, mean-flow, and low-flow frequency. The data available for analysis were from stream-gaging stations in New Hampshire and selected stations in adjacent States. The principles of generalized-least-squares regression analysis were applied to develop...
A stream-gaging network analysis for the 7-day, 10-year annual low flow in New Hampshire streams
Robert H. Flynn
2003, Water-Resources Investigations Report 2003-4023
The 7-day, 10-year (7Q10) low-flow-frequency statistic is a widely used measure of surface-water availability in New Hampshire. Regression equations and basin-characteristic digital data sets were developed to help water-resource managers determine surface-water resources during periods of low flow in New Hampshire streams. These regression equations and data sets were developed...
Two-station comparison of peak flows to improve flood-frequency estimates for seven streamflow-gaging stations in the Salmon and Clearwater River Basins, Central Idaho
Charles Berenbrock
2003, Water-Resources Investigations Report 2003-4001
Improved flood-frequency estimates for short-term (10 or fewer years of record) streamflow-gaging stations were needed to support instream flow studies by the U.S. Forest Service, which are focused on quantifying water rights necessary to maintain or restore productive fish habitat. Because peak-flow data for short-term gaging stations can be biased...
The New Albany Shale petroleum system, Illinois basin - Data and map image archive from the material-balance assessment
Debra K. Higley, M. E. Henry, M. D. Lewan, Janet K. Pitman
2003, Open-File Report 2003-37
The data files and explanations presented in this report were used to generate published material-balance approach estimates of amounts of petroleum 1) expelled from a source rock, and the sum of 2) petroleum discovered in-place plus that lost due to 3) secondary migration within, or leakage or erosion from a...
Trends in nitrogen concentration and nitrogen loads entering the South Shore Estuary Reserve from streams and ground-water discharge in Nassau and Suffolk counties, Long Island, New York, 1952–97
Monti, Michael P. Scorca
2003, Water-Resources Investigations Report 2002-4255
The 13 major south-shore streams in Nassau and Suffolk Counties, Long Island, New York with adequate long-term (1971-97) water-quality records, and 192 south-shore wells with sufficient water-quality data, were selected for analysis of geographic, seasonal, and long-term trends in nitrogen concentration. Annual total nitrogen loads transported to the South Shore...
Estimating spatial variability of recharge in southern New Jersey from unsaturated-zone measurements
Arthur L. Baehr, Leon J. Kauffman, Kimberlie Perkins, Bernard T. Nolan
2003, Water-Resources Investigations Report 2002-4288
Spatial variability of recharge in southern New Jersey was studied by sampling the unsat-urated zone at 48 sites distributed over approximately 930 square kilometers. Samples of unsaturated-zone sediment were collected during the summer and fall of 1996. Unsaturated flow was calculated using moisture-content data and estimates of conductivity and matric...
Estimating the magnitude of the 100-year peak flow in the Big Lost River at the Idaho National Engineering and Environmental Laboratory, Idaho
Jon Hortness, Joseph P. Rousseau
2003, Water-Resources Investigations Report 2002-4299
Accurate estimates of peak flows in the Big Lost River at the Idaho National Engineering and Environmental Laboratory (INEEL) are needed to assist planners and managers with evaluating possible effects of flooding on facilities at the INEEL. A large difference of 4,350 cubic feet per second (ft3/s) between two previous estimates of the magnitude of the 100-year...
Delineation of water sources for public-supply wells in three fractured-bedrock aquifer systems in Massachusetts
Forest P. Lyford, Carl S. Carlson, Bruce P. Hansen
2003, Water-Resources Investigations Report 2002-4290
Fractured-bedrock aquifer systems in West Newbury, Maynard, and Paxton, Massachusetts, were studied to advance methods of data collection and analysis for delineating contributing areas to public-supply wells completed in fractured rock and for determining the effects of pumping on streams and wetlands. Contributing areas, as defined for this study, include...
Simulated ground-water flow in the Hueco Bolson, an alluvial-basin aquifer system near El Paso, Texas
Charles E. Heywood, Richard M. Yager
2003, Water-Resources Investigations Report 2002-4108
The neighboring cities of El Paso, Texas, and Ciudad Juarez, Chihuahua, Mexico, have historically relied on ground-water withdrawals from the Hueco Bolson, an alluvial-aquifer system, to supply water to their growing populations. By 1996, ground-water drawdown exceeded 60 meters in some areas under Ciudad Juarez and El Paso. A simulation...
A geographic information system tool to solve regression equations and estimate flow-frequency characteristics of Vermont Streams
Scott A. Olson, Gary D. Tasker, Craig M. Johnston
2003, Open-File Report 2002-494
Estimates of the magnitude and frequency of streamflow are needed to safely and economically design bridges, culverts, and other structures in or near streams. These estimates also are used for managing floodplains, identifying flood-hazard areas, and establishing flood-insurance rates, but may be required at ungaged sites where no observed flood...
Simulation of Ground-Water Flow in the Irwin Basin Aquifer System, Fort Irwin National Training Center, California
Jill N. Densmore
2003, Water-Resources Investigations Report 2002-4264
Ground-water pumping in the Irwin Basin at Fort Irwin National Training Center, California resulted in water-level declines of about 30 feet from 1941 to 1996. Since 1992, artificial recharge from wastewater-effluent infiltration and irrigation-return flow has stabilized water levels, but there is concern that future water demands associated with expansion...
Summary of surface-water-quality data collected for the Northern Rockies Intermontane Basins National Water-Quality Assessment Program in the Clark Fork-Pend Oreille and Spokane River basins, Montana, Idaho, and Washington, water years 1999-2001
Michael A. Beckwith
2003, Open-File Report 2002-472
Water-quality samples were collected at 10 sites in the Clark Fork-Pend Oreille and Spokane River Basins in water years 1999 – 2001 as part of the Northern Rockies Intermontane Basins (NROK) National Water-Quality Assessment (NAWQA) Program. Sampling sites were located in varied environments ranging from small streams and rivers in...
Pumping test results for wells within Potrero Canyon, Morongo Band of Mission Indians Reservation, California
M. Isabel Pimentel, Allen H. Christensen
2003, Open-File Report 2002-228
Wells in Potrero Canyon are the main source of water for the Morongo Band of Mission Indians, located near Banning, California. A series of pumping tests were completed on four water-supply wells in the Canyon during February 27 to March 2, 2001. The purpose of the tests was to determine...
Principal facts for gravity stations in the Dry Valley area, west-central Nevada and east-central California
Elizabeth A. Sanger, David A. Ponce
2003, Open-File Report 2003-6
In June, 2002, the U.S. Geological Survey (USGS) established 143 new gravity stations and 12 new rock samples in the Dry Valley area, 30 miles north of Reno, Nevada, on the California - Nevada border (see fig. 1). This study reports on gravity, magnetic, and physical property data intended for...
Map showing alpine debris flows triggered by a July 28, 1999 thunderstorm in the central Front Range of Colorado
Jonathan W. Godt, Jeffrey A. Coe
2003, Open-File Report 2003-50
This 1:24,000-scale map shows an inventory of debris flows that were triggered above timberline by a thunderstorm in the central Front Range of Colorado. We have classified the debris flows into two categories based on the style of initiation processes in the debris-flow source areas: 1) soil slip, and 2)...
Velocity ratio and its application to predicting velocities
Myung W. Lee
2003, Bulletin 2197
The velocity ratio of water-saturated sediment derived from the Biot-Gassmann theory depends mainly on the Biot coefficient?a property of dry rock?for consolidated sediments with porosity less than the critical porosity. With this theory, the shear moduli of dry sediments are the same as the shear moduli of water-saturated sediments. Because the...
Preliminary soil-slip susceptibility maps, southwestern California
Douglas M. Morton, Rachel M. Alvarez, Russell H. Campbell, Kelly R. Bovard, D. T. Brown, K. M. Corriea, J. N. Lesser
2003, Open-File Report 2003-17
This group of maps shows relative susceptibility of hill slopes to the initiation sites of rainfall-triggered soil slip-debris flows in southwestern California. As such, the maps offer a partial answer to one part of the three parts necessary to predict the soil-slip/debris-flow process. A complete prediction of the process would...
Simulation of ground-water/surface-water flow in the Santa Clara-Calleguas ground-water basin, Ventura County, California
Randall T. Hanson, Peter Martin, Kathryn M. Koczot
2003, Water-Resources Investigations Report 2002-4136
Ground water is the main source of water in the Santa Clara-Calleguas ground-water basin that covers about 310 square miles in Ventura County, California. A steady increase in the demand for surface- and ground-water resources since the late 1800s has resulted in streamflow depletion and ground-water overdraft. This steady increase...
Percolation induced heat transfer in deep unsaturated zones
N. Lu, G.D. LeCain
2003, Journal of Geotechnical and Geoenvironmental Engineering (129) 1040-1053
Subsurface temperature data from a borehole located in a desert wash were measured and used to delineate the conductive and advective heat transfer regimes, and to estimate the percolation quantity associated with the 1997-1998 El Ni??no precipitation. In an arid environment, conductive heat transfer dominates the variation of shallow subsurface...
Sedimentation rates in the marshes of Sand Lake National Wildlife Refuge
R.A. Gleason, N.H. Euliss Jr., C. W. Holmes
2003, Report
Impoundments located within river systems in the Northern Great Plains are vulnerable to sediment inputs because intensive agriculture in watersheds has increased soil erosion and sediments in rivers. At the request of the U.S. Fish and Wildlife Service (FWS), we evaluated the vertical accretion of sediment in the Mud Lake...
Surface water qualit: Revisiting nitrate concentrations in the Des Moines River: 1945 and 1976-2001
G.F. McIsaac, R.D. Libra
2003, Journal of Environmental Quality (32) 2280-2289
Recent compilations of historical and contemporary riverine nitrate (NO3) concentrations indicate that concentrations in many rivers in the north-central USA increased during the second half of the 20th century. The Des Moines River near Des Moines, Iowa, however, was reported to have had similar NO3 concentrations in 1945 and the 1980s,...
Effects of channel modification on fish habitat in the upper Yellowstone River: Final report to the USACE, Omaha
Zachary H. Bowen, Ken D. Bovee, Terry J. Waddle
2003, Open-File Report 2003-476
A two-dimensional hydrodynamic simulation model was coupled with a geographic information system (GIS) to produce a variety of habitat classification maps for three study reaches in the upper Yellowstone River basin in Montana. Data from these maps were used to examine potential effects of channel modification on shallow, slow current...
The stream net as an indicator of cryptic systematic fracturing in Louisiana
R.P. McCulloh
2003, Southeastern Geology (42) 1-17
The stream net in many parts of Louisiana includes straight reaches with preferred alignment in a few directions, with some examples spanning tens of kilometers. In places the reaches form classic rectangular drainage patterns. These characteristics are obvious on maps at a variety of scales, and are recognizable on some...
Effects of river flow regime on cottonwood leaf litter dynamics in semi-arid northwestern Colorado
D.C. Andersen, S. M. Nelson
2003, Southwestern Naturalist (48) 188-201
We compared production and breakdown of Fremont cottonwood (Populus deltoides wislizenii) leaf litter at matched floodplain sites on the regulated Green River and unregulated Yampa River in semi-arid northwestern Colorado. Litter production under trees was similar at sites in 1999 (250 g/m2, oven-dry) but lower in 2000 (215 and 130...
Modeling flow and transport in unsaturated fractured rock: An evaluation of the continuum approach
H.-H. Liu, C.B. Haukwa, C.F. Ahlers, G.S. Bodvarsson, A. L. Flint, W.B. Guertal
2003, Journal of Contaminant Hydrology (62-63) 173-188
Because the continuum approach is relatively simple and straightforward to implement, it has been commonly used in modeling flow and transport in unsaturated fractured rock. However, the usefulness of this approach can be questioned in terms of its adequacy for representing fingering flow and transport in unsaturated fractured rock. The...
