Andrew K Skidmore, editor(s)
2002, Book chapter, Environmental modelling with GIS and remote sensing
No abstract available....
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Publication Extents
Not all publications have extents, not all extents are completely accurateKristen W. Sneddon, Michael H. Powers, Raymond H. Johnson, Eileen P. Poeter
2002, Open-File Report 2002-451
Dense nonaqueous phase liquids (DNAPLs) are a pervasive and persistent category of groundwater contamination. In an effort to better understand their unique subsurface behavior, a controlled and carefully monitored injection of PCE (perchloroethylene), a typical DNAPL, was performed in conjunction with the University of Waterloo at Canadian Forces Base Borden...
Thomas P. DeFelice
2002, Atmospheric Research (65) 17-34
Cloud or fog water collected by forest canopies of any elevation could represent significant sources of required moisture and nutrients for forest ecosystems, human consumption, and as an alternative source of water for agriculture and domestic use. The physical characteristics of fogs and other clouds have been well studied, and...
Bruce Bryant, Ralph R. Shroba, Anne E. Harding, Kyle E. Murray
2002, Miscellaneous Field Studies Map 2389
New 1:24,000-scale geologic mapping in the Storm King Mountain 7.5' quadrangle, in support of the USGS Western Colorado I-70 Corridor Cooperative Geologic Mapping Project, provides new data on the structure on the south margin of the White River uplift and the Grand Hogback and on...
John G. Elliott
2002, Water-Resources Investigations Report 2002-4223
The Roaring Fork River at Basalt, Colorado, has a frequently mobile streambed composed of gravel, cobbles, and boulders. Recent urban and highway development on the flood plain, earlier attempts to realign and confine the channel, and flow obstructions such as bridge openings and piers have altered the hydrology, hydraulics, sediment...
Joseph A. Briskey, Klaus J. Schulz, editor(s)
2002, Open-File Report 2002-423
Global demand for mineral resources continues to increase because of increasing global population and the desire and efforts to improve living standards worldwide. The ability to meet this growing demand for minerals is affected by the concerns about possible environmental degradation associated with minerals production and by competing land uses....
Viki Bankey, Alejandro Cuevas, David Daniels, Carol A. Finn, Israel Hernandez, Patricia Hill, Robert Kucks, Warner Miles, Mark Pilkington, Carter Roberts, Walter Roest, Victoria Rystrom, Sarah Shearer, Stephen Snyder, Ronald E. Sweeney, Julio Velez, J. D. Phillips, D.K.A. Ravat
2002, Open-File Report 2002-414
The digital magnetic anomaly database and map for the North American continent is the result of a joint effort by the Geological Survey of Canada (GSC), U. S. Geological Survey (USGS), and Consejo de Recursos Minerales of Mexico (CRM). This integrated, readily accessible, modern digital database of magnetic anomaly data...
Herman A. Karl, Christine Turner
2002, Human Ecology Review (9) 67-71
The role of science in society is evolving as we enter the 21st century. The report, Science — The Endless Frontier (Bush 1990[1945]), outlined a model of national scientific research that served the country for 50 years. The contract between science and society established in that report stipulated that science...
Phillip J. Zarriello, Lora K. Barlow
2002, Water-Resources Investigations Report 2002-4129
The lower Charles River, the water body between the Watertown Dam and the New Charles River Dam, is an important recreational resource for the Boston, Massachusetts, metropolitan area, but impaired water quality has affected its use. The goal of making this resource fishable and swimmable requires a better understanding of...
William A. Reiners, S. Liu, K.G. Gerow, M. Keller, D. S. Schimel
2002, Global Biogeochemical Cycles (16) 1-18
[1] The humid tropical zone is a major source area for N2O and NO emissions to the atmosphere. Local emission rates vary widely with local conditions, particularly land use practices which swiftly change with expanding settlement and changing market conditions. The combination of wide variation in emission rates and rapidly...
Cynthia S.A. Wallace, Stuart E. Advised by Marsh
2002, Thesis
The research accomplished in this dissertation used both mathematical and statistical techniques to extract and evaluate measures of landscape temporal dynamics and spatial structure from remotely sensed data for the purpose of mapping wildlife habitat. By coupling the landscape measures gleaned...
Wayne R. Belcher, Donald S. Sweetkind, Peggy E. Elliott
2002, Water-Resources Investigations Report 2002-4212
The use of geologic information such as lithology and rock properties is important to constrain conceptual and numerical hydrogeologic models. This geologic information is difficult to apply explicitly to numerical modeling and analyses because it tends to be qualitative rather than quantitative. This study uses a compilation of hydraulic-conductivity measurements...
Donna S. Francy, Robert A. Darner
2002, Fact Sheet 132-02
The U.S. Geological Survey developed models for predicting exceedance of the bathing-water standard for Escherichia coli (E. coli) at three Lake Erie beaches and one inland lake in Ohio. The statistical models were specific to each beach, and the best model for each beach was based on a unique combination...
Jesslyn F. Brown, Bradley C. Reed, Michael J. Hayes, Donald A. Wilhite, Kenneth G. Hubbard
2002, Conference Paper, Integrated remote sensing at the global, regional, and local scale
Droughts are natural hazards with varying patterns in space, time, and intensity. Their dynamic character challenges our ability in planning, predicting, monitoring, and providing relief to affected areas. Because of the spatial and temporal variability and multiple impacts of droughts, we need to improve the tools and data available for...
G. Barth, Mary C. Hill, Tissa H. Illangasekare, Harihar Rajaram
2002, Conference Paper, ”Bridging the gap between measurements and modelling”, Special issue with selected papers from the IAHR International Groundwater
As a first step toward understanding the role of sedimentary structures in flow and transport through porous media, this work deterministically examines how transport simulations compare to observed transport through simple, artificial structures in a laboratory experiment. Small-scale laboratory-measured values of hydraulic conductivity were used to simulate transport in an...
Frederick D. Day-Lewis, Jerry M. Harris, Steven M. Gorelick
2002, Geophysics (67) 1740-1752
The combination of differential radar tomography with conventional tracer and/or hydraulic tests facilitates high‐resolution characterization of subsurface heterogeneity and enables the identification of preferential flow paths. In dynamic imaging, each tomogram is typically inverted independently, under the assumption that data sets are collected quickly relative to changes in the imaged...
Dennis J. Low, Daniel J. Hippe, Dawna Yannacci
2002, Water-Resources Investigations Report 2000-4166
Rapid population growth in southeastern Pennsylvania has increased the demand for ground water. In an effort to address the increased ground-water needs, a ground-water investigation in a 5,200-square-mile area of southeastern Pennsylvania was initiated. Information on the geohydrologic system of the area and the water-bearing capabilities of 51 geohydrologic units...
Laura Norman, Craig Wissler, D. Phillip Guertin, Floyd Gray
2002, Open-File Report 2002-324
The ‘Soil Survey of Santa Cruz and Parts of Cochise and Pima Counties, Arizona,' a product of the USDA’s Soil Conservation Service and the Forest Service in cooperation with the Arizona Agricultural Experiment...
Aron J. Meltzner, David J. Wald
2002, Open-File Report 2002-37
The San Andreas fault is the longest fault in California and one of the longest strikeslip faults in the world, yet little is known about the aftershocks following the most recent great event on the San Andreas, the M 7.8 San Francisco earthquake, on 18 April 1906. This open-file report...
Michaela R. Johnson, James F. Cornwall, Matthew K. Landon
2002, Open-File Report 2002-64
This digital spatial data set consists of the aquifer base elevation contours (50-foot contour interval) for part of the High Plains aquifer in the central United States. This subset of the High Plains aquifer covers the Republican River Basin in Nebraska, Kansas, and Colorado upstream from the streamflow station on...
Brian P. Kelly
2002, Water-Resources Investigations Report 2002-4208
The city of Independence, Missouri, operates a well field in the Missouri River alluvial aquifer. Steady-state ground-water flow simulation, particle tracking, and the use of chemical and isotopic composition of river water, ground water, and well-field pumpage in a two-component mixing equation were used to determine the source contributions of...
Ralph J. Haefner
2002, Water-Resources Investigations Report 2002-4216
An abandoned coal mine in eastern Ohio was reclaimed with 125 tons per acre of pressurized fluidized bed combustion (PFBC) by-product. Water quality at the site (known as the Fleming site) was monitored for 7 years after reclamation; samples included water from soil-suction lysimeters (interstitial water), wells, and spring sites...
Donald C. Thorstenson, David L. Parkhurst
2002, Water-Resources Investigations Report 2002-4172
Theory is derived from the work of Urey to calculate equilibrium constants commonly used in geochemical equilibrium and reaction-transport models for reactions of individual isotopic species. Urey showed that equilibrium constants of isotope exchange reactions for molecules that contain two or more atoms of the same element in equivalent positions...
Michael P. Doukas
2002, Open-File Report 2002-395
Begun nearly thirty years ago, the measurement of gases in volcanic plumes is today an accepted technique in volcano research. Volcanic plume measurements, whether baseline gas emissions from quiescent volcanoes or more substantial emissions from volcanoes undergoing unrest, provide important information on the amount of gaseous output of a volcano...
Christopher J. Potter, Robert P. Dickerson, Donald S. Sweetkind, Ronald M. Drake II, Emily M. Taylor, Christopher J. Fridrich, Carma A. San Juan, Warren C. Day
2002, IMAP 2755
Yucca Mountain, Nye County, Nev., has been identified as a potential site for underground storage of high-level radioactive waste. This geologic map compilation, including all of Yucca Mountain and Crater Flat, most of the Calico Hills, western Jackass Flats, Little Skull Mountain, the Striped Hills, the Skeleton Hills, and...