Economics show CO2 EOR potential in central Kansas
M.K. Dubois, A.P. Byrnes, R.E. Pancake, G.P. Willhite, L.G. Schoeling
2000, Oil & Gas Journal (98) 37-40
Carbon dioxide (CO2) enhanced oil recovery (EOR) may be the key to recovering hundreds of millions of bbl of trapped oil from the mature fields in central Kansas. Preliminary economic analysis indicates that CO2 EOR should provide an internal rate of return (IRR) greater than 20%, before income tax, assuming...
Sorption of selected organic compounds from water to a peat soil and its humic-acid and humin fractions: Potential sources of the sorption nonlinearity
C. T. Chiou, D. E. Kile, D.W. Rutherford, G. Sheng, S.A. Boyd
2000, Environmental Science & Technology (34) 1254-1258
The sorption isotherms of ethylene dibromide (EDB), diuron (DUN), and 3,5-dichlorophenol (DCP) from water on the humic acid and humin fractions of a peat soil and on the humic-acid of a muck soil have been measured. The data were compared with those of the solutes with the whole peat from...
Tritium/3He measurements in young groundwater: Progress in applications to complex hydrogeological systems
Peter Schlosser, Stephanie D. Shapiro, Martin Stute, Niel Plummer
2000, Conference Paper, IAHS-AISH Publication
Tritium/3He dating has been applied to many problems in groundwater hydrology including, for example, determination of circulation patterns, mean residence times, recharge rates, or bank infiltration. Here, we discuss recent progress in the application of the tritium/3He dating method to sites with complex hydrogeological settings. Specifically, we report on tritium/3He...
Downed wood in Micronesian mangrove forests
J. A. Allen, K. C. Ewel, B. D. Keeland, T. Tara, T. J. Smith III
2000, Wetlands (20) 169-176
Dead, downed wood is an important component of upland forest and aquatic ecosystems, but its role in wetland ecosystems, including mangroves, is poorly understood. We measured downed wood in ten sites on the western Pacific islands of Kosrae, Pohnpei, and Yap, all located within the Federated States of Micronesia. Our...
Use of field-applied quality control samples to monitor performance of a Goulden large-sample extractor/GC-MS method for pesticides in water
W.T. Foreman, Paul M. Gates, G.D. Foster, F. A. Rinella, S. W. McKenzie
2000, International Journal of Environmental Analytical Chemistry (77) 39-62
Since 1985, the Goulden large-sample extractor (GLSE) has been used to isolate a broad array of trace-organic contaminants from large volumes of water. In this study, field-applied quality control measures, including matrix and surrogate spikes and blanks, were used to monitor method performance from GLSE extraction through GC-MS analysis. The...
The Cooperative Wildlife Research Unit and wildlife education: Historic development, future challenges
John A. Bissonette, Cynthia S. Loftin, David M. Leslie Jr., L. A. Nordstrom, W. James Fleming
2000, Wildlife Society Bulletin (28) 534-541
In 1932, J. N. 'Ding' Darling proposed a 3-year tripartite arrangement between the Iowa Fish and Game Commission, Iowa State University, and himself to establish the first Cooperative Wildlife Research Unit. Three years later, the Cooperative Wildlife Research Unit Program was broadened to include 9 land-grant colleges representing recognized ecoregions...
Gas content and composition of gas hydrate from sediments of the southeastern North American continental margin
T.D. Lorenson, T. S. Collett
2000, Conference Paper, Proceedings of the Ocean Drilling Program: Scientific Results
Gas hydrate samples were recovered from four sites (Sites 994, 995, 996, and 997) along the crest of the Blake Ridge during Ocean Drilling Program (ODP) Leg 164. At Site 996, an area of active gas venting, pockmarks, and chemosynthetic communities, vein-like gas hydrate was recovered from less than 1...
Evidence for a previously unrecognized species of owlet-nightjar
T.K. Pratt
2000, The Auk (117) 1-11
I studied the systematic relationships of the three large owlet-nightjars (Aegothelidae) to determine the taxonomic status of a fawn-colored lowland form currently classified as Aegotheles insignis tatei. I examined most of the existing specimens of A. i. insignis (n = 158) and A. crinifrons (n = 23) and all known...
Paleoclimate reconstruction along the Pole-Equator-Pole transect of the Americas (PEP 1)
Vera Markgraf, T.R. Baumgartner, J.P. Bradbury, Henry F. Diaz, R. B. Dunbar, B.H. Luckman, G.O. Seltzer, T.W. Swetnam, R. Villalba
2000, Conference Paper, Quaternary Science Reviews
Examples are presented of inter-hemispheric comparison of instrumental climate and paleoclimate proxy records from the Americas for different temporal scales. Despite a certain symmetry of seasonal precipitation patterns along the PEP I transect, decadal variability of winter precipitation shows different characteristics in terms of amplitude and frequency in both the...
Sediment-contact and survival of fingernail clams: Implications for conducting short-term laboratory tests
T.J. Naimo, W.G. Cope, M.R. Bartsch
2000, Environmental Toxicology (15) 23-27
Porewater toxicity tests have been used as indicators of whole sediment toxicity. However, many species commonly tested in porewater predominately reside in the water column and otherwise have little to no direct contact with sediment and associated porewater. We assessed the feasibility of porewater toxicity tests with fingernail clams Musculium...
Comment on 'Volume of magma accumulation or withdrawal estimated from surface uplift or subsidence, with application to the 1960 collapse of Kilauea volcano' by P.T. Delaney and D.F. McTigue
Daniel J. Johnson, F. Sigmundsson, P.T. Delaney
2000, Bulletin of Volcanology (61) 491-493
In volcanoes that store a significant quantity of magma within a subsurface summit reservoir, such as Kilauea, bulk compression of stored magma is an important mode of deformation. Accumulation of magma is also accompanied by crustal deformation, usually manifested at the surface as uplift. These two modes of deformation -...
Intra- and inter-unit variation in fly ash petrography and mercury adsorption: Examples from a western Kentucky power station
J.C. Hower, R. B. Finkelman, R.F. Rathbone, J. Goodman
2000, Energy and Fuels (14) 212-216
Fly ash was collected from eight mechanical and 10 baghouse hoppers at each of the twin 150-MW wall-fired units in a western Kentucky power station. The fuel burned at that time was a blend of many low-sulfur, high-volatile bituminous Central Appalachian coals. The baghouse ash showed less variation between units...
A test of a climatic index of dune mobility using measurements from the southwestern United States
N. Lancaster, P. Helm
2000, Earth Surface Processes and Landforms (25) 197-207
The climatic index of dune mobility developed by Lancaster (1988) has been applied to a variety of different environments. The index is, however, untested and unverified. We tested the index by comparison of values of the dune mobility index calculated from climate data with rates of sand transport measured at...
Multispectral image sharpening using wavelet transform techniques and spatial correlation of edges
George P. Lemeshewsky, Robert A. Schowengerdt
2000, Conference Paper, Proceedings of SPIE - The International Society for Optical Engineering
Several reported image fusion or sharpening techniques are based on the discrete wavelet transform (DWT). The technique described here uses a pixel-based maximum selection rule to combine respective transform coefficients of lower spatial resolution near-infrared (NIR) and higher spatial resolution panchromatic (pan) imagery to produce a sharpened NIR image. Sharpening...
USGS investigations of rural Arizona watersheds; hydrogeology of the Coconino Plateau; background and current status
Donald J. Bills, M.E. Flynn, Betsy Woodhouse
2000, Conference Paper, First Coconino Plateau hydrology workshop
No abstract available....
Estimates of fish-, spill-, and sluiceway-passage efficiencies of radio-tagged juvenile steelhead and yearling Chinook salmon at The Dalles Dam, 1999
H.C. Hansel, J.W. Beeman, T.D. Counihan, J.M. Hardiman, B.D. Liedtke, M.S. Novick, J.M. Plumb
2000, Report
Abstract not available ...
The importance of marine-derived nutrients for ecosystem health and productive fisheries
B.D. Winter, R.R. Reisenbichler, E. Schreiner
2000, Report
Abstract not available ...
Three archives of the U. S. Geological Survey's Western Mineral Resources Team
Karen Sue Bolm, David G. Frank, Jill L. Schneider
2000, Conference Paper
The Western Mineral Resources Team of the U.S. Geological Survey (USGS) has three archives, which hold unpublished or difficult-to-obtain records and literature. The Technical Data Unit in Anchorage, Alaska, holds maps, field notes, and other records of the USGS work in Alaska....
Foods, trophic relationships, and migration of Sooty and Short-tailed Shearwaters associated with squid and large-mesh driftnet fisheries in the North Pacific Ocean
Patrick J. Gould, Peggy H. Ostrom, William Walker
2000, Waterbirds (23) 165-186
We salvaged dead birds from high seas driftnets in the Central North Pacific Ocean during a study of the impact of high seas driftnet fishing on marine ecosystems. Digestive tract contents and stable isotopes of nitrogen and carbon in breast muscles of these birds were analyzed to assess the effect...
Family Rhabdoviridae
P.J. Walker, A. Benmansour, C.H. Calisher, R. Dietzgen, R.X. Fang, A.O. Jackson, G. Kurath, J.C. Leong, S. Nadin-Davis, R.B. Tesh, N. Tordo
2000, Book chapter, The seventh report of the international committee for taxonomy of viruses
Abstract not available...
Occurrence of sulfonylurea, sulfonamide, imidazolinone, and other herbicides in rivers, reservoirs and ground water in the Midwestern United States, 1998
W.A. Battaglin, E. T. Furlong, M.R. Burkhardt, C.J. Peter
2000, Science of Total Environment (248) 123-133
Sulfonylurea (SU), sulfonamide (SA), and imidazolinone (IMI) herbicides are relatively new classes of chemical compounds that function by inhibiting the action of a plant enzyme, stopping plant growth, and eventually killing the plant. These compounds generally have low mammalian toxicity, but plants demonstrate a...
Evaluation of strobe lights to improve fish collection efficiency at Cowlitz Falls Dam, Washington, Final report 1999
S.D. Evans, B.J. Hausmann, N.S. Adams, D.W. Rondorf
2000, Report
Abstract not available ...
Monitoring of Lost River and shortnose suckers at shoreline spawning areas in Upper Klamath Lake, Oregon
B.S. Hayes, R.S. Shively
2000, Report
Abstract not available...
Monitoring of Lost River and shortnose suckers at the Sprague River Dam fish ladder, Oregon
R.S. Shively, E.B. Neuman, M.E. Cunningham, B.S. Hayes
2000, Report
Abstract not available ...
Coal marketability; effects of deregulation and regulation
Emil Attanasi
2000, Conference Paper, Proceedings of the 25th international technical conference on Coal utilization & fuel systems
No abstract available...
