Geophysical database of the east coast of the United States; southern Atlantic margin, stratigraphy and velocity in map grids
D. R. Hutchinson, C. W. Poag, Aaron H. Johnson, Peter Popenoe, C. Wright
1997, Open-File Report 96-55
In 1990, the Naval Oceanographic Office and the U.S. Geological Survey agreed to develop a digital data base of stratigraphy and acoustic properties of sediments along the U.S. East Coast of the United States. The objective of this work was to utilize more than 25,000 km of publicly available multichannel...
Geomorphology of the lower Copper River, Alaska
Timothy P. Brabets
1997, Professional Paper 1581
The Copper River, located in southcentral Alaska, drains an area of more than 24,000 square miles. About 30 miles above its mouth, this large river enters Miles Lake, a proglacial lake formed by the retreat of Miles Glacier. Downstream from the outlet of Miles Lake, the Copper River flows past...
Geology and structure of the Pine River, Florida River, Carbon Junction, and Basin Creek gas seeps, La Plata County, Colorado
James E. Fassett, Steven M. Condon, A. Curtis Huffman Jr., David J. Taylor
1997, Open-File Report 97-59
Introduction: This study was commissioned by a consortium consisting of the Bureau of Land Management, Durango Office; the Colorado Oil and Gas Conservation Commission; La Plata County; and all of the major gas-producing companies operating in La Plata County, Colorado. The gas-seep study project consisted of four parts; 1) detailed...
Pesticides in surface and ground water of the San Joaquin-Tulare basins, California: Analysis of available data, 1966 Through 1992
Joseph L. Domagalski
1997, Water Supply Paper 2468
Available pesticide data (1966-92) for surface and ground water were analyzed for the San Joaquin-Tulare Basins, California, one of 60 large hydrologic systems being studied as part of the National Water-Quality Assessment Program of the U.S. Geological Survey. Most of the pesticide data were for the San Joaquin Valley, one...
Suspended-sediment budget for the Kankakee River Basin, 1993-95
Robert R. Holmes Jr.
1997, Open-File Report 97-120
A suspended-sediment budget was constructed for the Kankakee River Basin using suspended-sediment data collected from January 1993 through December 1995 at six existing U.S. Geological Survey streamflow-gaging stations. The Iroquois River delivered almost twice as much suspended-sediment load to the Kankakee River main stem as did the Kankakee River above...
Surface-water-quality assessment of the upper Illinois River Basin in Illinois, Indiana, and Wisconsin– Results of investigations through April 1992
Arthur R. Schmidt, Stephen F. Blanchard
1997, Water-Resources Investigations Report 96-4223
A water-quality assessment of the upper Illinois River Basin (10,949 square miles) was conducted during water years 1987-91. This assessment involved interpretation of available data; 4 years of intensive data collection, including monthly sample collection at eight fixed-monitoring stations in the basin; and synoptic studies of selected water-quality constituents at...
Water-quality assessment of the Las Vegas Valley area and the Carson and Truckee River basins, Nevada and California: Nutrients, pesticides, and suspended sediment, October 1969-April 1990
Kathryn C. Kilroy, Stephen J. Lawrence, Michael S. Lico, Hugh E. Bevans, Sharon A. Watkins
1997, Water-Resources Investigations Report 97-4106
The U.S. Geological Survey National Water-Quality Assessment Program (NAWQA) is designed to provide long-term, consistent information on water quality that can be used to describe local, regional, and national conditions. The full-scale NAWQA Program, initiated in 1991, includes both study-unit and national synthesis activities. Study-unit investigations provide scientific data and...
Pollen and geochronological data from South Florida; Taylor Creek Site 2
Debra A. Willard, C. W. Holmes
1997, Open-File Report 97-35
Many recent changes in plant and animal communities of the Everglades have been attributed to human alteration of the environment, such as changes in the hydrologic regime and increased agricultural activity, but cause-and-effect relationships between environmental and biotic changes have not been documented scientifically. This report on pollen and geochronological...
Kandia: threatened forest, threatened livelihood - a study of human-environment interaction in the Department of Velingara, Senegal
Karen Schoonmaker Freudenberger, G. Gray Tappan
1997, Report
This case study is one of several carried out as part the Long-term Environmental Monitoring in Senegal Project. Co-financed by USAID and the U.S. Geological Survey's EROS Data Center (EDC), and implemented by EDC and the Centre de Suivi Ecologique (CSE), this project has carried out extensive monitoring of natural...
Use of a spatial decision support system for analysis of habitat use by wintering northern pintails
Clinton W. Jeske, W. Ji, Paul C. Chadwick, W. Norling, M. C. Finley
1997, Conference Paper, Effect of habitat loss and change on waterbirds
A multi-functional spatial decision support system (SDSS) was,developed at the spatial analysis branch Of the National Wetlands Research Center, and the wildlife analysis module of the system was used to study habitat use by wintering pintail. We instrumented female pintails at Catahoula Lake, Louisiana, in October of 1992-94 and located...
Initiation of debris flows in tributaries of the Colorado River in Grand Canyon, Arizona
Peter G. Griffiths, Robert Webb, Theodore S. Melis
1997, Conference Paper, Proceedings of the 1997 1st international conference on debris-flow hazards mitigation: Mechanics, prediction, and assessment
Debris flows are initiated in tributaries of the Colorado River in Grand Canyon when intense rainfall causes failures in colluvium and (or) bedrock. Most debris flows occur in the summer during localized convective thunderstorms with rainfall intensities as high as 40 mm/hr. Rarer and larger debris flows occur during unusually...
Cross‐hole radar attenuation tomography using a frequency centroid down‐shift method: Consideration of non‐linear frequency dependence of EM wave attenuation
Lanbo Liu, Chaoguang Zhou, John W. Lane Jr., F.P. Haeni
1997, Conference Paper, SEG technical program expanded abstracts
This paper presents a cross-hole radar attenuation tomography method based on analysis of the down-shift in the spectrum centroid frequency, and spectral broadening of the received radar signals. The method uses a parameter that combines centroid frequency down shift and variance increase for the projection function to construct the tomography...
Comparing nocturnal eddy covariance measurements to estimates of ecosystem respiration made by scaling chamber measurements at six coniferous boreal sites
M.B. Lavigne, M. G. Ryan, D.E. Anderson, D. D. Baldocchi, P.M. Crill, D.R. Fitzjarrald, M. L. Goulden, S.T. Gower, J.M. Massheder, J.H. McCaughey, M. Rayment, Robert G. Striegl
1997, Journal of Geophysical Research D: Atmospheres (102) 28977-28985
During the growing season, nighttime ecosystem respiration emits 30–100% of the daytime net photosynthetic uptake of carbon, and therefore measurements of rates and understanding of its control by the environment are important for understanding net ecosystem exchange. Ecosystem respiration can be measured at night by eddy covariance methods, but the...
New approaches to the analysis of population trends in land birds: Comment
William A. Link, John R. Sauer
1997, Ecology (78) 2632-2634
James et al. (1996, Ecology 77:13-27) used data from the North American Breeding Bird Survey (BBS) to examine geographic variability in patterns of population change for 26 species of wood warblers. They emphasized the importance of evaluating nonlinear patterns of change in bird populations, proposed LOESS-based non-parametric and...
Comparison of two methods for estimating discharge and nutrient loads from Tidally affected reaches of the Myakka and Peace Rivers, West-Central Florida
V.A. Levesque, K.M. Hammett
1997, Open-File Report 97-118
The Myakka and Peace River Basins constitute more than 60 percent of the total inflow area and contribute more than half the total tributary inflow to the Charlotte Harbor estuarine system. Water discharge and nutrient enrichment have been identified as significant concerns in the estuary, and consequently, it is important...
Hydraulic analysis of U.S. Highway 75 crossing of the Fall River at Neodesha, Southeast Kansas
R.W. Clement, C. A. Perry
1997, Open-File Report 97-13
A hydraulic analysis of the Fall River inthe vicinity of the existing U.S. Highway 75 crossing at Neodesha, southeast Kansas, was conducted using a combination of step-backwater (WSPRO) and culvert (CAP) analysis program. Hydraulic data for these programs were determined fromonsite inspections and surveys, and from...
Hydrogeologic data for the Blaine aquifer and associated units in southwestern Oklahoma and northwestern Texas
D. L. Runkle, D. L. Bergman, R.S. Fabian
1997, Open-File Report 97-50
This report is a compilation of hydrogeologic data collected for an areal ground-water investigation of the Blaine aquifer and associated units in southwestern Oklahoma and northwestern Texas. The study area includes parts of Greer, Harmon, and Jackson counties in Oklahoma and parts of Childress, Collingsworth, Hall, Hardeman, and Wilbarger counties...
Tritium, deuterium, and oxygen-18 in water collected from unsaturated sediments near a low-level radioactive-waste burial site south of Beatty, Nevada
David E. Prudic, David A. Stonestrom, Robert G. Striegl
1997, Water-Resources Investigations Report 97-4062
Pore water was extracted in March 1996 from cores collected from test holes UZB-1 and UZB-2 drilled November 1992 and September 1993, respectively, in the Amargosa Desert south of Beatty, Nevada. The test holes are part of a study to determine factors affecting water and gas movement through unsaturated sediments....
Water-supply potential of major streams and the Upper Floridan Aquifer in the vicinity of Savannah, Georgia
Reggina Garza, Richard E. Krause
1997, Water Supply Paper 2411
Surface- and ground-water resources in the Savannah, Georgia, area were evaluated for potential water-supply development. Stream-discharge and water-quality data were analyzed for two major streams considered to be viable water-supply sources. A ground-water flow model was developed to be used in conjunction with other previously calibrated models to simulate the...
Estimates of bridge scour at two sites on the Virgin River, southeastern Nevada, using a sediment-transport model and historical geomorphic data
M.M. Hilmes, J. E. Vaill
1997, Water-Resources Investigations Report 97-4073
A bridge-scour study by the U.S. Geological Survey, in cooperation with the Nevada Department of Transportation, began in April 1996 to evaluate the Mesquite, Nevada, and Riverside, Nevada, bridges on the lower Virgin River using a sediment-transport model and historical geomorphic data. The BRIdge Stream Tube model for Alluvial River...
Study plan for urban stream indicator sites of the National Water-Quality Assessment Program
T. J. Lopes, C. V. Price
1997, Open-File Report 97-25
Urban Indicator Sites are one component of the U.S. Geological Survey?s National Water- Quality Assessment (NAWQA) Program. The objectives of monitoring at the Urban Indicator Sites are to: (1) characterize stream quality from drainage basins with predominantly residential and commercial land use, and (2) determine which selected natural and human...
Preliminary geologic map of the Van Nuys 7.5' quadrangle, southern California: A digital database
R.F. Yerkes
1997, Open-File Report 97-165
No abstract available....
Alaska resource data file: Cold Bay quadrangle
Frederic H. Wilson
1997, Open-File Report 97-168
No abstract available....
The COALPROD database; historical production data for the major coal-producing regions of the conterminous United States
Robert C. Milici
1997, Open-File Report 97-447-B
Digital-map grids of mean-annual precipitation for 1961-90, and generalized skew coefficients of annual maximum streamflow for Oklahoma
A. H. Rea, R. L. Tortorelli
1997, Open-File Report 97-574
This digital report contains two digital-map grids of data that were used to develop peak-flow regression equations in Tortorelli, 1997, 'Techniques for estimating peak-streamflow frequency for unregulated streams and streams regulated by small floodwater retarding structures in Oklahoma,' U.S. Geological Survey Water-Resources Investigations Report 97-4202. One data set is a...
