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...
Occurrence and transport of cadmium, lead, and zinc in the Spokane River basin, Idaho and Washington, water years 1999-2001
Gregory M. Clark
2003, Water-Resources Investigations Report 2002-4183
A water-quality investigation of the Clark Fork-Pend Oreille and Spokane River Basins began in 1997 as part of the U.S. Geological Survey National Water-Quality Assessment Program. As part of the investigation, selected streams in the Spokane River Basin were sampled for trace metals during water years 1999–2001. These data, combined with data collected as part of a...
Simulation of ground-water flow and land subsidence in the Antelope Valley ground-water basin, California
David A. Leighton, Steven P. Phillips
2003, Water-Resources Investigations Report 2003-4016
Antelope Valley, California, is a topographically closed basin in the western part of the Mojave Desert, about 50 miles northeast of Los Angeles. The Antelope Valley ground-water basin is about 940 square miles and is separated from the northern part of Antelope Valley by faults and low-lying hills. Prior to...
Inventory of marine and estuarine fishes in southeast and central Alaska National Parks
Mayumi L. Arimitsu, Michael A. Litzow, John F. Piatt, Martin D. Robards, Alisa A. Abookire, Gary S. Drew
2003, Report
As part of a national inventory program funded by the National Park Service, we conducted an inventory of marine and estuarine fishes in Glacier Bay National Park and Preserve, Wrangell-St. Elias National Park and Preserve, Sitka National Historical Park, and Klondike Gold Rush National Historical Park in 2001 and 2002....
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...
Ferricrete, manganocrete, and bog iron occurrences with selected sedge bogs and active iron bogs and springs in the upper Animas River watershed, San Juan County, Colorado
Douglas B. Yager, Stan E. Church, Philip L. Verplanck, Laurie Wirt
2003, Miscellaneous Field Studies Map 2406
During 1996 to 2000, the Bureau of Land Management, National Park Service, Environmental Protection Agency, United States Department of Agriculture (USDA) Forest Service, and the U.S. Geological Survey (USGS) developed a coordinated...
Topographic map of the northwest Loire Valles region of Mars MTM 500k -15/337E OMKT
Water Resources Division, U.S. Geological Survey
2003, IMAP 2785
This map, compiled photogrammetrically from Viking Orbiter stereo image pairs, is part of a series of topographic maps of areas of special scientific interest on Mars. MTM 500k –15/337E OMKT: Abbreviation for Mars Transverse Mercator; 1:500,000 series; center of sheet latitude 15° S., longitude 337.5° E. in planetocentric coordinate system...
Structure of the Tucson Basin, Arizona from gravity and aeromagnetic data
Victoria Louise Rystrom
2003, Open-File Report 2003-116
Interpretation of gravity and high-resolution aeromagnetic data reveal the three-dimensional geometry of the Tuscson Basin, Arizona and the lithology of its basement. Limited drill hole and seismic data indicate that the maximum depth to the crystalline basement is approximately 3600 meters and that the sedimentary sequences in the upper ~2000...
Geology of Badlands National Park: A preliminary report
Philip W. Stoffer
2003, Open-File Report 2003-35
Badlands National Park is host to perhaps the most scenic geology and landscape features in the Western Interior region of the United States. Ongoing erosion that forms the "badlands" exposes ancient sedimentary strata of Late Cretaceous through Oligocene age. Quaternary erosional and depositional processes are responsible for most of the...
Escherichia coli at Ohio bathing beaches—Distribution, sources, wastewater indicators, and predictive modeling
Donna S. Francy, Amie M. Gifford, Robert A. Darner
2003, Water-Resources Investigations Report 2002-4285
Results of studies during the recreational seasons of 2000 and 2001 strengthen the science that supports monitoring of our Nation's beaches. Water and sediment samples were collected and analyzed for concentrations of Escherichia coli (E. coli). Ancillary water-quality and environmental data were collected or compiled to determine their relation to...
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...
Development of regional curves of bankfull-channel geometry and discharge for streams in the non-urban, Piedmont Physiographic Province, Pennsylvania and Maryland
Peter J. Cinotto
2003, Water-Resources Investigations Report 2003-4014
Stream-restoration projects utilizing natural stream designs frequently are based on the bankfull-channel characteristics of stream reaches that can accommodate streamflow and sediment transport without excessive erosion or deposition and lie within a watershed that has similar runoff characteristics. The bankfull channel at an ungaged impaired site or reference reach is...
Low-sulfide quartz gold deposit model
Lawrence J. Drew
2003, Open-File Report 2003-77
Chemistry and age of ground water in the southwestern Hueco Bolson, New Mexico and Texas
Scott K. Anderholm, Charles E. Heywood
2003, Water-Resources Investigations Report 2002-4237
This report, prepared in cooperation with El Paso Water Utilities, presents the results of an investigation to determine the chemistry and age of ground water on the southwestern side of the Hueco Bolson. The radioactive isotope carbon-14 was used to estimate the length of time that water from wells has...
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...
Modflow 2001 and other modeling Odysseys
Mary C. Hill, Eileen Poeter, Chunmiao Zheng, John Doherty
2003, Ground Water (41) 113-113
No abstract available. ...
Mars Digital Image Model (MDIM) 2.1 control network
Brent A. Archinal, Randolph L. Kirk, T. C. Duxbury, Ella M. Lee, Robert M. Sucharski, Debbie Cook
2003, Conference Paper, Proceedings: ISPRS Working Group IV/9 Workshop
Positional control for MDIM 2.1 comes from a new geodetic/photogrammetric solution of the global Mars Mariner 9 and Viking image control network. The details of this network solution are described here. This network incorporates 1,054 Mariner 9 and 5,317 Viking Orbiter images. Accuracy of the new solution is improved primarily...
Hydrothermal alteration at the Lonar Lake impact structure, India: Implications for impact cratering on Mars
Justin Hagerty, Horton E. Newsom
2003, Meteoritics and Planetary Science (38) 365-381
The 50,000 year old, 1.8 km diameter Lonar crater is one of only two known terrestrial craters to be emplaced in basaltic target rock (the 65 million year old Deccan Traps). The composition of the Lonar basalts is similar to martian basaltic meteorites, which establishes Lonar as an excellent analogue...
Monitoring vegetation phenology using MODIS
Xiayong Zhang, Mark A. Friedl, Crystal B. Schaaf, Alan H. Strahler, John C.F. Hodges, Feng Gao, Bradley C. Reed, Alfredo Huete
2003, Remote Sensing of Environment (84) 471-475
Accurate measurements of regional to global scale vegetation dynamics (phenology) are required to improve models and understanding of inter-annual variability in terrestrial ecosystem carbon exchange and climate–biosphere interactions. Since the mid-1980s, satellite data have been used to study these processes. In this paper, a new methodology to monitor global vegetation...
Effects of landscape characteristics on land-cover class accuracy
Jonathan H. Smith, Stephen V. Stehman, James D. Wickham, Limin Yang
2003, Remote Sensing of Environment (84) 342-349
The effects of patch size and land-cover heterogeneity on classification accuracy were evaluated using reference data collected for the National Land-Cover Data (NLCD) set accuracy assessment. Logistic regression models quantified the relationship between classification accuracy and these landscape variables for each land-cover class at both the Anderson Levels I and...
Case study for delineating a contributing area to a well in a fractured siliciclastic-bedrock aquifer near Lansdale, Pennsylvania
Gary J. Barton, Dennis W. Risser, Daniel G. Galeone, Daniel J. Goode
2003, Water-Resources Investigations Report 2002-4271
A supply well used by the North Penn Water Authority near Lansdale, Pa., was selected as a case study for delineating a contributing area in a fractured siliciclastic-bedrock aquifer. The study emphasized the importance of refining the understanding of factors that control ground-water movement to the well by conducting (1)...
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...
Mitochondrial phylogeography of moose (Alces alces) in North America
Kris J. Hundertmark, R. Terry Bowyer, Gerald F. Shields, Charles C. Schwartz
2003, Journal of Mammalogy (84) 718-728
Nucleotide variation was assessed from the mitochondrial control region of North American moose (Alces alces) to test predictions of a model of range expansion by stepping-stone dispersal and to determine whether patterns of genetic variation support the current recognition of 4 subspecies. Haplotypes formed a star phylogeny indicative of a...
Importance of a stochastic distribution of floods and erosion thresholds in the bedrock river incision problem
Noah P. Snyder, Kelin X. Whipple, Gregory E. Tucker, D.J. Merritts
2003, Journal of Geophysical Research B: Solid Earth (108)
Fluvial erosion of bedrock occurs during occasional flood events when boundary shear stress exceeds a critical threshold to initiate incision. Therefore efforts to model the evolution of topography over long timescales should include an erosion threshold and should be driven by a stochastic distribution of erosive events. However, most bedrock...
Compositional analyses of lunar pyroclastic deposits
Lisa R. Gaddis, Matthew I. Staid, James A. Tyburczy, B. Ray Hawke, Noah E. Petro
2003, Icarus (161) 262-280
The 5-band Clementine UVVIS data at ∼100 m/pixel were used to examine the compositions of 75 large and small lunar pyroclastic deposits (LPDs), and these were compared to representative lunar maria and highlands deposits. Results show that the albedo, spectral color, and inferred composition of most LPDs are similar to those of low-titanium, mature lunar maria....
