Order from noise: Toward a social theory of geographic information
B.S. Poore, N.R. Chrisman
2006, Annals of the Association of American Geographers (96) 508-523
In the so-called Information Age, it is surprising that the concept of information is imprecisely defined and almost taken for granted. Historic and recent geographic information science (GIScience) literature relies on two conflicting metaphors, often espoused by the same author in adjacent paragraphs. The metaphor of invariance, derived from telecommunications...
Occurrence of organic wastewater compounds in effluent-dominated streams in Northeastern Kansas
C.J. Lee, T. J. Rasmussen
2006, Science of the Total Environment (371) 258-269
Fifty-nine stream-water samples and 14 municipal wastewater treatment facility (WWTF) discharge samples in Johnson County, northeastern Kansas, were analyzed for 55 compounds collectively described as organic wastewater compounds (OWCs). Stream-water samples were collected upstream, in, and downstream from WWTF discharges in urban and rural areas during base-flow conditions. The effect...
Impacts of marsh management on coastal-marsh bird habitats
L.R. Mitchell, S. Gabrey, P.P. Marra, R.M. Erwin
Greenberg R.Maldonado J.E.Droege S.McDonald M.V., editor(s)
2006, Studies in Avian Biology 155-175
The effects of habitat-management practices in coastal marshes have been poorly evaluated. We summarize the extant literature concerning whether these manipulations achieve their goals and the effects of these manipulations on target (i.e., waterfowl and waterfowl food plants) and non-target organisms (particularly coastal-marsh endemics). Although we focus on the effects...
Testing of stack-unit/aquifer sensitivity analysis using contaminant plume distribution in the subsurface of Savannah River Site, South Carolina, USA
J.M. Rine, J.M. Shafer, E. Covington, R. C. Berg
2006, Hydrogeology Journal (14) 1620-1634
Published information on the correlation and field-testing of the technique of stack-unit/aquifer sensitivity mapping with documented subsurface contaminant plumes is rare. The inherent characteristic of stack-unit mapping, which makes it a superior technique to other analyses that amalgamate data, is the ability to deconstruct the sensitivity analysis on a unit-by-unit...
Development of the performance confirmation program at YUCCA mountain, nevada
G.D. LeCain, D. Barr, D. Weaver, R. Snell, S.W. Goodin, F.D. Hansen
2006, Conference Paper, Proceedings of the 11th International High Level Radioactive Waste Management Conference, IHLRWM
The Yucca Mountain Performance Confirmation program consists of tests, monitoring activities, experiments, and analyses to evaluate the adequacy of assumptions, data, and analyses that form the basis of the conceptual and numerical models of flow and transport associated with a proposed radioactive waste repository at Yucca Mountain, Nevada. The Performance...
Infectious haematopoietic necrosis (IHN) virus disease in sockeye salmon (Oncorhynchus nerka)
Diane G. Elliott
D.W. Bruno, D.G. Elliott, B. Nowak, editor(s)
2006, Conference Paper, EAFP 2005 Copenhagen Histopathology Workshop. Reproductive pathology and early life stages pathology: Notes and images
No abstract available....
New ghost-node method for linking different models with varied grid refinement
S.C. James, J.E. Dickinson, S.W. Mehl, M. C. Hill, S. A. Leake, G.A. Zyvoloski, A.-A. Eddebbarh
2006, Conference Paper, Proceedings of the 11th International High Level Radioactive Waste Management Conference, IHLRWM
A flexible, robust method for linking grids of locally refined ground-water flow models constructed with different numerical methods is needed to address a variety of hydrologic problems. This work outlines and tests a new ghost-node model-linking method for a refined "child" model that is contained within a larger and coarser...
Small satellite multi mission C2 for maximum effect
E. Miller, O. Medina, C. R. Lane, A. Kirkham, W. Ivancic, B. Jones, R. Risty
2006, Conference Paper, European Space Agency, (Special Publication) ESA SP
This paper discusses US Air Force, US Army, US Navy, and NASA demonstrations based around the Virtual Mission Operations Center (VMOC) and its application in fielding a Multi Mission Satellite Operations Center (MMSOC) designed to integrate small satellites into the inherently tiered system environment of operations. The intent is to...
Nesting habitat of the Tule Greater White-fronted Goose Anser albifrons elgasi
R.V. Densmore, Craig R. Ely, K.S. Bollinger, S. Kratzer, Mark S. Udevitz, D.J. Fehringer, T.C. Rothe
2006, Wildfowl (56) 37-51
This paper presents the first information on the availability and use of nesting habitat by the rare Tule Greater White-fronted Goose Anser albifrons elgasi. The breeding range was sampled by marking geese with radio transmitters on wintering and moulting areas, and tracking them to nest sites in Alaska. Nesting habitat...
Are southern California's fragmented saltmarshes capable of sustaining endemic bird populations?
A.N. Powell
Greenberg R.Maldonado J.E.Droege S.McDonald M.V., editor(s)
2006, Studies in Avian Biology 198-204
Loss of coastal saltmarshes in southern California has been estimated at 75-90% since presettlement times. The remaining wetlands are mostly fragmented and degraded, and most frequently have harsh edges adjacent to urban landscapes. Non-migratory Belding's Savannah Sparrows (Passerculus sandwichensis beldingi) and Light-footed Clapper Rails (Rallus longirostris levipes) are endemic to...
CO2 sequestration: Storage capacity guideline needed
S.M. Frailey, R.J. Finley, T.S. Hickman
2006, Oil & Gas Journal (104)
Petroleum reserves are classified for the assessment of available supplies by governmental agencies, management of business processes for achieving exploration and production efficiency, and documentation of the value of reserves and resources in financial statements. Up to the present however, the storage capacity determinations made by some organizations in the...
Influence of potentially confounding factors on sea urchin porewater toxicity tests
R.S. Carr, J.M. Biedenbach, M. Nipper
2006, Archives of Environmental Contamination and Toxicology (51) 573-579
The influence of potentially confounding factors has been identified as a concern for interpreting sea urchin porewater toxicity test data. The results from >40 sediment-quality assessment surveys using early-life stages of the sea urchin Arbacia punctulata were compiled and examined to determine acceptable ranges of natural variables such as pH,...
Fault dating in the Canadian Rocky Mountains: Evidence for late Cretaceous and early Eocene orogenic pulses
B.A. van der Pluijm, P.J. Vrolijk, D.R. Pevear, C.M. Hall, J. Solum
2006, Geology (34) 837-840
Fault rocks from the classic Rocky Mountain foreland fold-and-thrust belt in south-western Canada were dated by Ar analysis of clay grain-size fractions. Using X-ray diffraction quantification of the detrital and authigenic component of each fraction, these determinations give ages for individual faults in the area (illite age analysis). The resulting...
Mineral mapping and applications of imaging spectroscopy
R. N. Clark, J. Boardman, J. Mustard, F. Kruse, C. Ong, C. Pieters, G.A. Swayze
2006, Conference Paper, International Geoscience and Remote Sensing Symposium (IGARSS)
Spectroscopy is a tool that has been used for decades to identify, understand, and quantify solid, liquid, or gaseous materials, especially in the laboratory. In disciplines ranging from astronomy to chemistry, spectroscopic measurements are used to detect absorption and emission features due to specific chemical bonds, and detailed analyses are...
Does life history predict risk-taking behavior of wintering dabbling ducks?
Joshua T. Ackerman, J.M. Eadie, T.G. Moore
2006, Condor (108) 530-546
Life-history theory predicts that longer-lived, less fecund species should take fewer risks when exposed to predation than shorter-lived, more fecund species. We tested this prediction for seven species of dabbling ducks (Anas) by measuring the approach behavior (behavior of ducks when approaching potential landing sites) of 1099 duck flocks during...
Joshua tree (Yucca brevifolia) seeds are dispersed by seed-caching rodents
S.B. Vander Wall, T. Esque, D. Haines, M. Garnett, B.A. Waitman
2006, Écoscience (13) 539-543
Joshua tree (Yucca brevifolia) is a distinctive and charismatic plant of the Mojave Desert. Although floral biology and seed production of Joshua tree and other yuccas are well understood, the fate of Joshua tree seeds has never been studied. We tested the hypothesis that Joshua tree seeds are dispersed by...
Improving the precision of otolith-based age estimates for Greenland halibut (Reinhardtius hippoglossoides) with preparation methods adapted for fragile sagittae
J.L. Gregg, D.M. Anderl, D.K. Kimura
2006, Fishery Bulletin (104) 643-648
[No abstract available]...
A reexamination of the Sudbury landing
D.S. Ross
2006, Icarus (183) 233-234
The arrival of the massive body that led to the Sudbury impact structure has been interpreted as a relatively gentle event, with temperatures not exceeding 1300 K on the basis of the presence of fullerene-caged helium. Such temperatures are well below the 10,000 K peaks suggested in large impact modeling,...
Effects of wildfire and permafrost on soil organic matter and soil climate in interior Alaska
J.W. Harden, K.L. Manies, M.R. Turetsky, J. C. Neff
2006, Global Change Biology (12) 2391-2403
The influence of discontinuous permafrost on ground-fuel storage, combustion losses, and postfire soil climates was examined after a wildfire near Delta Junction, AK in July 1999. At this site, we sampled soils from a four-way site comparison of burning (burned and unburned) and permafrost (permafrost and nonpermafrost). Soil organic layers...
The effects of river impoundment and hatchery rearing on the migration behavior of juvenile steelhead in the Lower Snake River, Washington
J.M. Plumb, R.W. Perry, N.S. Adams, D.W. Rondorf
2006, North American Journal of Fisheries Management (26) 438-452
We used radiotelemetry to monitor the migration behavior of juvenile hatchery and wild steelhead Oncorhynchus mykiss as they migrated through Lower Granite Reservoir and Dam on the lower Snake River, Washington. From 1996 to 2001, we surgically implanted radio transmitters in 1,540 hatchery steelhead and 1,346 wild steelhead. For analysis,...
Ecology of an estuarine mysid shrimp in the Columbia River (USA)
C. A. Haskell, J. A. Stanford
2006, River Research and Applications (22) 739-753
The estuarine mysid, Neomysis mercedis, has colonized John Day and other run-of-the-river Reservoirs of the Columbia River, over 400 km from the estuary. In John Day Reservoir N. mercedis numbers peaked (2 m-3) in August in areas near the dam in association with lower water velocity and softer bottom than...
Late Quaternary eolian dust in surficial deposits of a Colorado Plateau grassland: Controls on distribution and ecologic effects
R. L. Reynolds, M.C. Reheis, J. C. Neff, H. Goldstein, J. Yount
2006, Catena (66) 251-266
In a semi-arid, upland setting on the Colorado Plateau that is underlain by nutrient-poor Paleozoic eolian sandstone, alternating episodes of dune activity and soil formation during the late Pleistocene and Holocene have produced dominantly sandy deposits that support grass and shrub communities. These deposits also contain eolian dust, especially in...
Evaluation of the persistence of micropollutants through pure-oxygen activated sludge nitrification and denitrification
A.D. Levine, M. T. Meyer, G. Kish
2006, Water Environment Research (78) 2276-2285
The persistence of pharmaceuticals, hormones, and household and industrial chemicals through a pure-oxygen activated sludge, nitrification, denitrification wastewater treatment facility was evaluated. Of the 125 micropollutants that were tested in this study, 55 compounds were detected in the untreated wastewater, and 27 compounds were detected in the disinfected effluent. The...
Coseismic and initial postseismic deformation from the 2004 Parkfield, California, earthquake, observed by global positioning system, electronic distance meter, creepmeters, and borehole strainmeters
J. Langbein, J.R. Murray, Hollice A. Snyder
2006, Bulletin of the Seismological Society of America (96)
Global Positioning System (GPS), electronic distance meter, creepmeter, and strainmeter measurements spanning the M 6.0 Parkfield, California, earthquake are examined. Using these data from 100 sec through 9 months following the main-shock, the Omori's law, with rate inversely related to time, l/t p and p ranging between 0.7 and 1.3,...
Benthic foraminiferal assemblages in Osaka Bay, southwestern Japan: Faunal changes over the last 50 years
Akira Tsujimoto, Ritsuo Nomura, Moriaki Yasuhara, Shusaku Yoshikawa
2006, Paleontological Research (10) 141-161
Live benthic foraminiferal assemblages from surface sediment in Osaka Bay collected in 1999 were analyzed to characterize the distribution of the modern foraminiferal assemblages. Foraminiferal assemblages were compared with those of previous studies to document environmental changes in Osaka Bay over the past 50 years. Sixty-one species of foraminifera belonging...
