High-resolution CASSINI-VIMS mosaics of Titan and the icy Saturnian satellites
R. Jaumann, K. Stephan, R. H. Brown, B. J. Buratti, R. N. Clark, T. B. McCord, A. Coradini, F. Capaccioni, G. Filacchione, P. Cerroni, K. H. Baines, G. Bellucci, J.-P. Bibring, M. Combes, D. P. Cruikshank, P. Drossart, V. Formisano, Y. Langevin, D. L. Matson, R.M. Nelson, P. D. Nicholson, B. Sicardy, Christophe Sotin, L. A. Soderblom, C. Griffith, K.-D. Matz, Th. Roatsch, F. Scholten, C.C. Porco
2006, Planetary and Space Science (54) 1146-1155
The Visual Infrared Mapping Spectrometer (VIMS) onboard the CASSINI spacecraft obtained new spectral data of the icy satellites of Saturn after its arrival at Saturn in June 2004. VIMS operates in a spectral range from 0.35 to 5.2 ??m, generating image cubes in which each pixel represents a spectrum consisting...
The time of sands: Quartz-rich sand deposits as renewable resource
N.R. Shaffer
2006, Electronic Green Journal
[No abstract available]...
Trends in summer chemistry linked to productivity in lakes recovering from acid deposition in the Adirondack region of New York
B. Momen, G.B. Lawrence, S. A. Nierzwicki-Bauer, J.W. Sutherland, L.W. Eichler, J.P. Harrison, C.W. Boylen
2006, Ecosystems (9) 1306-1317
The US Environmental Protection Agency established the Adirondack Effects Assessment Program (AEAP) to evaluate and monitor the status of biological communities in lakes in the Adirondack region of New York that have been adversely affected by acid deposition. This program includes chemical analysis of 30 lakes, sampled two to three...
Soluble reactive phosphorus transport and retention in tropical, rainforest streams draining a volcanic and geothermally active landscape in Costa Rica.: Long-term concentration patterns, pore water environment and response to ENSO events
F.J. Triska, C. M. Pringle, J.H. Duff, R.J. Avanzino, A. Ramirez, M. Ardon, A. P. Jackman
2006, Biogeochemistry (81) 131-143
Soluble reactive phosphorus (SRP) transport/retention was determined at four sites in three rainforest streams draining La Selva Biological Station, Costa Rica. La Selva is located at the base of the last remaining intact rainforest transect from 30 m above sea level to 3000 m along the entire Caribbean slope of...
Assessment of gamete quality for the eastern oyster (Crassostrea virginica) by use of fluorescent dyes
C. G. Paniagua-Chavez, J. Jenkins, M. Segovia, T.R. Tiersch
2006, Cryobiology (53) 128-138
Evaluation of sperm motility is the single most widely used parameter to determine semen quality in mammals and aquatic species. While a good indicator for fresh sperm viability, post-thaw motility is not always effective at predicting fertilizing ability. Techniques using fluorescent dyes can assess functionality of mammalian sperm, but have...
Effects of polychlorinated biphenyls, hexachlorocyclohexanes, and mercury on human neutrophil apoptosis, actin cytoskelton, and oxidative state
L.I. Sweet, D. R. Passino-Reader, P.G. Meier, G.M. Omann
2006, Environmental Toxicology and Pharmacology (22) 179-188
Apoptosis, or programmed cell death, has been proposed as a biomarker for environmental contaminant effects. In this work, we test the hypothesis that in vitro assays of apoptosis are sensitive indicators of immunological effects of polychlorinated biphenyls, hexachlorocyclohexanes, and mercury on human neutrophils. Apoptosis, necrosis, and viability as well as...
A simple method of predicting S-wave velocity
Myung W. Lee
2006, Geophysics (71)
Prediction of shear-wave velocity plays an important role in seismic modeling, amplitude analysis with offset, and other exploration applications. This paper presents a method for predicting S-wave velocity from the P-wave velocity on the basis of the moduli of dry rock. Elastic velocities of water-saturated sediments at low frequencies can...
Riverine movements of adult Lost River, shortnose, and Klamath largescale suckers in the Williamson and Sprague rivers, Oregon. Annual report 2004
T.J. Tyler, C.M. Ellsworth, S. P. VanderKooi, R.S. Shively
2006, Report
n/a...
Evidence for the aquatic binding of arsenate by natural organic matter-suspended Fe(III)
K. Ritter, G. R. Aiken, J. F. Ranville, M. E. Bauer, D.L. Macalady
2006, Environmental Science & Technology (40) 5380-5387
Dialysis experiments with arsenate and three different NOM samples amended with Fe(III) showed evidence confirming the formation of aquatic arsenate-Fe(III)-NOM associations. A linear relationship was observed between the amount of complexed arsenate and the Fe(III) content of the NOM. The dialysis results were consistent with complex formation through ferric iron...
Association between wetland disturbance and biological attributes in floodplain wetlands
S. R. Chipps, D.E. Hubbard, K.B. Werlin, N.J. Haugerud, K.A. Powell, John Thompson, T. Johnson
2006, Wetlands (26) 497-508
We quantified the influence of agricultural activities on environmental and biological conditions of floodplain wetlands in the upper Missouri River basin. Seasonally-flooded wetlands were characterized as low impact (non-disturbed) or high impact (disturbed) based on local land use. Biological data collected from these wetlands were used to develop a wetland...
Modeling movement and fidelity of American black ducks
N.L. Zimpfer, M.J. Conroy
2006, Journal of Wildlife Management (70) 1770-1777
Spatial relationships among stocks of breeding waterfowl can be an important component of harvest management. Prediction and optimal harvest management under adaptive harvest management (AHM) requires information on the spatial relationships among breeding populations (fidelity and inter-year exchange), as well as rates of movements from breeding to harvest regions. We...
Research approach to teaching groundwater biodegradation in karst aquifers
L. King, T. Byl, R. Painter
2006, Conference Paper, ASEE Annual Conference and Exposition, Conference Proceedings
TSU in partnership with the USGS has conducted extensive research regarding biode??gradation of contaminants in karst aquifers. This research resulted in the development of a numerical approach to modeling biodegradation of contaminants in karst aquifers that is taught to environmental engineering students in several steps. First, environmental engineering students are...
Habitat associations of chorusing anurans in the Lower Mississippi River Alluvial valley
J.S. Lichtenberg, S.L. King, J.B. Grace, S.C. Walls
2006, Wetlands (26) 736-744
Amphibian populations have declined worldwide. To pursue conservation efforts adequately, land managers need more information concerning amphibian habitat requirements. To address this need, we examined relationships between anurans and habitat characteristics of wetlands in the Lower Mississippi River Alluvial Valley (LMAV). We surveyed chorusing anurans in 31 wetlands in 2000...
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...
A new probabilistic seismic hazard assessment for greater Tokyo
R.S. Stein, S. Toda, T. Parsons, E. Grunewald, R. Blong, S. Sparks, H. Shah, J. Kennedy
2006, Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences (364) 1965-1988
Tokyo and its outlying cities are home to one-quarter of Japan's 127 million people. Highly destructive earthquakes struck the capital in 1703, 1855 and 1923, the last of which took 105 000 lives. Fuelled by greater Tokyo's rich seismological record, but challenged by its magnificent complexity, our joint Japanese-US group...
Distribution and ecology of Dreissena polymorpha (pallas) and Dreissena bugensis (andrusov) in the upper Volga basin
G. Kh Shcherbina, D.R. Buckler
2006, Journal of ASTM International (3)
This paper presents data on contemporary distribution patterns of two species of Dreissenidae, the zebra mussel (Dreissena polymorpha) and the Quagga mussel (Dreissena bugensis), and their role in ecosystem processes in the Ivan'kovo, Uglich, Rybinsk, and Gorky Reservoirs of the Upper Volga River basin. The role of zebra mussel was...
Late Cretaceous base level lowering in Campanian and Maastrichtian depositional sequences, Kure Beach, North Carolina
W.B. Harris, Self-Trail J.M.
2006, Stratigraphy (3) 195-216
Campanian through Maastrichtian mixed carbonate and siliciclastic sediments in a 422 m continuous core drilled at Kure Beach, NC provide a record of sea-level change. Based on lithology and stratigraphy, depositional sequences are defined, and calcareous nannofossil zones and 87Sr/86Sr ratios and corresponding ages using the LOWESS Table determined. Campanian...
Slip on the San Andreas fault at Parkfield, California, over two earthquake cycles, and the implications for seismic hazard
J. Murray, J. Langbein
2006, Bulletin of the Seismological Society of America (96)
Parkfield, California, which experienced M 6.0 earthquakes in 1934, 1966, and 2004, is one of the few locales for which geodetic observations span multiple earthquake cycles. We undertake a comprehensive study of deformation over the most recent earthquake cycle and explore the results in the context of geodetic data collected...
Two models for evaluating landslide hazards
J.C. Davis, C.-J. Chung, G.C. Ohlmacher
2006, Computers & Geosciences (32) 1120-1127
Two alternative procedures for estimating landslide hazards were evaluated using data on topographic digital elevation models (DEMs) and bedrock lithologies in an area adjacent to the Missouri River in Atchison County, Kansas, USA. The two procedures are based on the likelihood ratio model but utilize different assumptions. The empirical likelihood...
Possible effects of the 2004 and 2005 hurricanes on manatee survival rates and movement
C.A. Langtimm, M. D. Krohn, J.P. Reid, B.M. Stith, C.A. Beck
2006, Estuaries and Coasts (29) 1026-1032
Prior research on manatee (Trichechus manatus latirostris) survival in northwest Florida, based on mark-resighting photo-identification data from 1982-1998, showed that annual adult apparent survival rate was significantly lower during years with extreme storms. Mechanisms that we proposed could have led to lower estimates included stranding, injury from debris, being fatally...
Linking middle-school teachers to Earthscope
R. Butler, E. Bishop, C. Ault Jr., B. Atwater, B. Magura, C. Hedeen, R. Blakely, Ray E. Wells, K. Shay, R. Wagner, T. Southworth-Neumeyer, D. Connor
2006, Eos, Transactions, American Geophysical Union (87) 257-259
EarthScope is a multidisciplinary geophysical investigation of the structure and deformation of the North American continent. Components include a transportable array of digital seismometers (USArray) that will image the continental crust and underlying mantle, and Global Positioning System (GPS) receivers and strainmeters (Plate Boundary Observatory, PBO) that will measure tectonic...
An isolate of Piscirickettsia salmonis from white seabass is fully virulent for coho salmon
M.L. House, R.P. Hedrick, J. R. Winton, J. L. Fryer
2006, Journal of Aquatic Animal Health (18) 252-256
The virulence of the WSB-98 isolate of Piscirickettsia salmonis from white seabass Atractoscion nobilis was compared with that of the American Type Culture Collection type strain LF-89, which was originally isolated from coho salmon Oncorhynchus kisutch in Chile. In controlled laboratory challenges of juvenile coho salmon, the isolate from white...
Oil resources - Estimates and uncertainties
D. L. Gautier
2006, Conference Paper, Society of Petroleum Engineers, 68th European Association of Geoscientists and Engineers Conference and Exhibition, incorporating SPE EUROPEC 2006, EAGE 2006: Opportunities in Mature Areas
Oil reserves are reasonably well known, but they are not a reliable indicator of longterm supply. Future oil availability will depend upon reserve additions, which are highly uncertain. New reserves will come from three sources: 1) new field discoveries, 2) growth of reserves in existing fields, and 3) development of...
Behavior and passage of juvenile salmonids during evaluation of a new fish screen at Cowlitz Falls Dam, 2006
T.J. Kock, M.A Kritter, T.L. Liedtke, D.W. Rondorf
2006, Report
In spring of 2006, Tacoma Power installed a new fish screen at the Cowlitz Falls Project (CFP) with the purpose of improving the collection of anadromous juvenile fish for downstream transport. The new fish screen was placed between the upstream baffle panels and the fish gates and flume system that...
Effects of hydropower operations on spawning habitat, rearing habitat, and standing/entrapment mortality of fall Chinook salmon in the Hanford Reach of the Columbia River
Donald R. Anglin, Steven L. Haeseker, Joseph J. Skalicky, Howard Schaller, Kenneth F. Tiffan, James R. Hatten, Paul Hoffarth, John Nugent, David Benner, Marv Yoshinaka
2006, Report
This report describes research conducted primarily in 2003 and 2004 to evaluate the effects of upstream dam operations on spawning and rearing conditions for fall Chinook salmon, Oncorhynchus tshawytscha, in the Hanford Reach of the Columbia River. Results from habitat modeling tasks which continued in 2005 and 2006 are also...
