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...
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...
Reconnaissance-level application of physical habitat simulation in the evaluation of physical habitat limits in the Animas Basin, Colorado
Robert T. Milhous
2003, Open-File Report 2003-222
The Animas River is in southwestern Colorado and flows mostly to the south to join the San Juan River at Farmington, New Mexico (Figure 1). The Upper Animas River watershed is in San Juan County, Colorado and is located in the San Juan Mountains. The lower river is in the...
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...
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...
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...
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...
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...
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...
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...
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,...
Determining temperature and thermal properties for heat-based studies of surface-water ground-water interactions: Appendix A of Heat as a tool for studying the movement of ground water near streams (Cir1260)
David A. Stonestrom, Kyle W. Blasch
David A. Stonestrom, Jim Constantz, editor(s)
2003, Report, Heat as a tool for studying the movement of ground water near streams (Cir1260)
Advances in electronics leading to improved sensor technologies, large-scale circuit integration, and attendant miniaturization have created new opportunities to use heat as a tracer of subsurface flow. Because nature provides abundant thermal forcing at the land surface, heat is particularly useful in studying stream-groundwater interactions. This appendix describes methods for...
Comprehensive water quality of the Boulder Creek Watershed, Colorado, during high-flow and low-flow conditions, 2000
Sheila F. Murphy, Philip L. Verplanck, Larry B. Barber, editor(s)
2003, Water-Resources Investigations Report 03-4045
Executive SummaryThe Boulder Creek Watershed, Colorado, is 1160 square kilometers in area and ranges in elevation from 1480 to 4120 meters above sea level. Streamflow originates primarily as snowmelt near the Continental Divide, and thus discharge varies seasonally and annually (Chapter 1). Most of the water in Boulder Creek is...
Water resources data Texas, water year 2002, volume 5. Guadalupe River basin, Nueces River basin, Rio Grande basin, and intervening coastal basins
Susan C. Gandara
2003, Water Data Report TX-02-5
Water-resources data for the 2002 water year for Texas are presented in six volumes and consist of records of stage, discharge, and water quality of streams and canals; stage, contents, and water quality of lakes and reservoirs; and water levels and water quality of ground-water wells. Volume 5 contains records...
Water resources data Texas, water year 2002, volume 4. Colorado River basin, Lavaca River basin, and intervening coastal basins
Susan C. Gandara
2003, Water Data Report TX-02-4
Water-resources data for the 2002 water year for Texas are presented in six volumes and consist of records of stage, discharge, and water quality of streams and canals; stage, contents, and water quality of lakes and reservoirs; and water levels and water quality of ground-water wells. Volume 4 contains records...
Water resources data Texas, water year 2002, volume 3. San Jacinto River basin, Brazos River basin, San Bernard River basin, and intervening coastal basins
Susan C. Gandara
2003, Water Data Report TX-02-3
Water-resources data for the 2002 water year for Texas are presented in six volumes and consist of records of stage, discharge, and water quality of streams and canals; stage, contents, and water quality of lakes and reservoirs; and water levels and water quality of ground-water wells. Volume 3 contains records...
Water Resources Data, New Jersey, Water Year 2002, Volume 1. Surface-Water Data
T.J. Reed, B.T. White, G.L. Centinaro, J.F. Dudek, A.B. Spehar, A.R. Protz, J.C. Shvanda, A.F. Watson, G.K. Holzer
2003, Water Data Report NJ-02-1
Water-resources data for the 2002 Water Year for New Jersey are presented in three volumes, and consists of records of stage, discharge, and water quality of streams; stage and contents of lakes and reservoirs; and water levels and water quality of ground water. Volume 1 contains discharge records for 93...
Water resources data, New York, water year 2002, volume 2, Long Islan
A. G. Spinello, R. Busciolano, G.P. Pena-Cruz, R.B. Winowitch
2003, Water Data Report NY-02-2
Water resources data for the 2002 water year for New York consist of records of stage, discharge, and water quality of streams; stage, contents, and water quality of lakes and ponds; stage and water quality of estuaries; and water levels and water quality of ground-water wells. This volume contains records...
An acoustic doppler current profiler survey of flow velocities in Detroit River, a connecting channel of the Great Lakes
David J. Holtschlag, John A. Koschik
2003, Open-File Report 2003-219
Acoustic Doppler current profilers (ADCP) were used to survey flow velocities in Detroit River from July 8-19, 2002, as part of a study to assess the susceptibility of public water intakes to contaminants on the St. Clair-Detroit River Waterway. More than 3.5 million point velocities were measured at 130 cross...
Infiltration-Excess Overland Flow Estimated by TOPMODEL for the Conterminous United States
David M. Wolock
2003, Open-File Report 2003-310
This 5-kilometer resolution raster (grid) dataset for the conterminous United States represents the average percentage of infiltration-excess overland flow in total streamflow estimated by the watershed model TOPMODEL. Infiltration-excess overland flow is simulated in TOPMODEL as precipitation that exceeds the infiltration capacity of the soil and enters the stream channel....
Simulation of ground-water flow and rainfall runoff with emphasis on the effects of land cover, Whittlesey Creek, Bayfield County, Wisconsin, 1999-2001
Bernard N. Lenz, David A. Saad, Faith A. Fitzpatrick
2003, Water-Resources Investigations Report 2003-4130
The effects of land cover on flooding and base-flow characteristics of Whittlesey Creek, Bayfield County, Wis., were examined in a study that involved ground-water-flow and rainfall-runoff modeling. Field data were collected during 1999-2001 for synoptic base flow, streambed head and temperature, precipitation, continuous streamflow and stream stage, and other physical...
Simulations of Flooding on Pea River and Whitewater Creek in the Vicinity of the Proposed Elba Bypass at Elba, Alabama
T. Scott Hedgecock
2003, Water-Resources Investigations Report 2002-4258
A two-dimensional finite-element surface-water model was used to study the effects of proposed modifications to the State Highway 203 corridor (proposed Elba Bypass/relocated U.S. Highway 84) on water-surface elevations and flow distributions during flooding in the Pea River and Whitewater Creek Basins at Elba, Coffee County, Alabama. Flooding was first...
Estimated mean annual natural ground-water recharge in the conterminous United States
David M. Wolock
2003, Open-File Report 2003-311
This 1-kilometer resolution raster (grid) dataset is an index of mean annual natural ground-water recharge. The dataset was created by multiplying a grid of base-flow index (BFI) values by a grid of mean annual runoff values derived from a 1951-80 mean annual runoff contour map. Mean annual runoff is long-term...
Shuttle Radar Topography Mission (SRTM)
Water Resources Division, U.S. Geological Survey
2003, Fact Sheet 071-03
Under an agreement with the National Aeronautics and Space Administration (NASA) and the Department of Defense's National Imagery and Mapping Agency (NIMA), the U.S. Geological Survey (USGS) is now distributing elevation data from the Shuttle Radar Topography Mission (SRTM). The SRTM is a joint project between NASA and NIMA to...
Base-Flow Index Grid for the Conterminous United States
David M. Wolock
2003, Open-File Report 2003-263
This 1-kilometer raster (grid) dataset for the conterminous United States was created by interpolating base-flow index (BFI) values estimated at U.S. Geological Survey (USGS) streamgages. Base flow is the component of streamflow that can be attributed to ground-water discharge into streams....
