Incorporating both physical and kinetic limitations in quantifying dissolved oxygen flux to aquatic sediments
B.L. O’Connor, Miki Hondzo, J. W. Harvey
2009, Journal of Environmental Engineering (135) 1304-1314
Traditionally, dissolved oxygen (DO) fluxes have been calculated using the thin-film theory with DO microstructure data in systems characterized by fine sediments and low velocities. However, recent experimental evidence of fluctuating DO concentrations near the sediment-water interface suggests that turbulence and coherent motions control the mass transfer, and the surface...
TreeMAC: Localized TDMA MAC protocol for real-time high-data-rate sensor networks
W.-Z. Song, R. Huang, B. Shirazi, R. LaHusen
2009, Pervasive and Mobile Computing (5) 750-765
Earlier sensor network MAC protocols focus on energy conservation in low-duty cycle applications, while some recent applications involve real-time high-data-rate signals. This motivates us to design an innovative localized TDMA MAC protocol to achieve high throughput and low congestion in data collection sensor networks, besides energy conservation. TreeMAC divides a...
Unraveling the stratigraphy of the Oriskany Sandstone: A necessity in assessing its site-specific carbon sequestration potential
J. Kostelnik, K.M. Carter
2009, Environmental Geosciences (16) 187-200
The widespread distribution, favorable reservoir characteristics, and depth make the Lower Devonian Oriskany Sandstone a viable sequestration target in the Appalachian Basin. The Oriskany Sandstone is thickest in the structurally complex Ridge and Valley Province, thins toward the northern and western basin margins, and is even absent in other parts...
Infrasonic ambient noise interferometry from correlations of microbaroms
M.M. Haney
2009, Geophysical Research Letters (36)
We show that microbaroms, continuous infrasound fluctuations resulting from the interaction of the ocean with the atmosphere, have long-range correlation properties that make it possible to estimate the impulse response between two microphones from passive recordings. The processing is analogous to methods employed in the emerging field of ambient noise...
Site characterization for urban seismic hazards in lower Manhattan, New York City, from microtremor array analysis
W. J. Stephenson, S. Hartzell, A.D. Frankel, M. Asten, D. L. Carver, W.Y. Kim
2009, Geophysical Research Letters (36)
We characterize the shear-wave velocity (Vs) of soil deposits in lower Manhattan at six sites using the SPAC and HVSR microtremor methods. The soil Vs ranges from 140 m/s to 300 m/s over bedrock. We believe that bedrock depth is constrained to ±15% with these microtremor data, but an accurate...
Distribution limits of Batrachochytrium dendrobatidis: a case study in the Rocky Mountains, USA
Blake R. Hossack, Erin L. Muths, Chauncey W. Anderson, Julie D. Kirshtein, P. Stephen Corn
2009, Journal of Wildlife Diseases (45) 1198-1202
Knowledge of the environmental constraints on a pathogen is critical to predicting its dynamics and effects on populations. Batrachochytrium dendrobatidis (Bd), an aquatic fungus that has been linked with widespread amphibian declines, is ubiquitous in the Rocky Mountains. As part of assessing the distribution limits of Bd in our study...
Numerical study of tsunami generated by multiple submarine slope failures in Resurrection Bay, Alaska, during the MW 9.2 1964 earthquake
E. Suleimani, R. Hansen, Peter J. Haeussler
2009, Conference Paper, Pure and Applied Geophysics
We use a viscous slide model of Jiang and LeBlond (1994) coupled with nonlinear shallow water equations to study tsunami waves in Resurrection Bay, in south-central Alaska. The town of Seward, located at the head of Resurrection Bay, was hit hard by both tectonic and local landslide-generated tsunami waves during...
A national look at carbon capture and storage-National carbon sequestration database and geographical information system (NatCarb)
T.R. Carr, A. Iqbal, N. Callaghan, Dana-Adkins-Heljeson, K. Look, S. Saving, K. Nelson
2009, Conference Paper, Energy Procedia
The US Department of Energy's Regional Carbon Sequestration Partnerships (RCSPs) are responsible for generating geospatial data for the maps displayed in the Carbon Sequestration Atlas of the United States and Canada. Key geospatial data (carbon sources, potential storage sites, transportation, land use, etc.) are required for the Atlas, and for...
Investigating aquatic ecosystems of small lakes in Khorezm, Uzbekistan
L. Saito, J. Scott, M. Rosen, Bakhriddin Nishonov, S. Chandra, John P.A. Lamers, Dilorom Fayzieva, M. Shanafield
2009, Conference Paper, Proceedings of World Environmental and Water Resources Congress 2009 - World Environmental and Water Resources Congress 2009: Great Rivers
The Khorezm province of Uzbekistan, located in the Aral Sea Basin, suffers from severe environmental and human health problems due to decades of unsustainable land and water management. Agriculture is the dominant land use in Khorezm, and agricultural runoff water has impacted many small lakes. In this water-scarce region, these...
Neotectonic analysis of upper klamath lake, oregon: New insights from seismic reflection data
L.M. Liberty, T. L. Pratt, M. Lyle, I. P. Madin
2009, Special Paper of the Geological Society of America 71-82
We present marine high-resolution seismic reflection data from Upper Klamath Lake, Oregon, to discern the underlying structure and estimate Quaternary slip rates in this actively extending Basin and Range system. The sediment patterns and structures imaged on our seismic profiles reveal a complex geologic system that reflects a changing climate...
Trace-element record in zircons during exhumation from UHP conditions, North-East Greenland Caledonides
W.C. McClelland, J. A. Gilotti, F.K. Mazdab, J. L. Wooden
2009, European Journal of Mineralogy (21) 1135-1148
Coesite-bearing zircon formed at ultrahigh-pressure (UHP) conditions share general characteristics of eclogite-facies zircon with trace-element signatures characterized by depleted heavy rare earth elements (HREE), lack of an Eu anomaly, and low Th/ U ratios. Trace-element signatures of zircons from the Caledonian UHP terrane in North-East Greenland were used to examine...
Patterns and determinants of mammal species occurrence in India
K.K. Karanth, J.D. Nichols, J.E. Hines, K. U. Karanth, N.L. Christensen
2009, Journal of Applied Ecology (46) 1189-1200
Many Indian mammals face range contraction and extinction, but assessments of their population status are hindered by the lack of reliable distribution data and range maps. 2. We estimated the current geographical ranges of 20 species of large mammals by applying occupancy models to data from country-wide expert. We modelled...
Constraining earthquake source inversions with GPS data: 2. A two-step approach to combine seismic and geodetic data sets
S. Custodio, M.T. Page, R.J. Archuleta
2009, Journal of Geophysical Research B: Solid Earth (114)
We present a new method to combine static and wavefield data to image earthquake ruptures. Our combined inversion is a two-step procedure, following the work of Hernandez et al. (1999), and takes into account the differences between the resolutions of the two data sets. The first step consists of an...
Rapid middle Miocene collapse of the Mesozoic orogenic plateau in north-central Nevada
Joseph P. Colgan, Christopher D. Henry
2009, International Geology Review (51) 920-961
The modern Sierra Nevada and Great Basin were likely the site of a high-elevation orogenic plateau well into Cenozoic time, supported by crust thickened during Mesozoic shortening. Although crustal thickening at this scale can lead to extension, the relationship between Mesozoic shortening and subsequent formation of the Basin and Range...
Production of bovine cloned embryos with donor cells frozen at a slow cooling rate in a conventional freezer (20 C)
L. Chacon, M.C. Gomez, J.A. Jenkins, S.P. Leibo, G. Wirtu, B.L. Dresser, C.E. Pope
2009, Zygote (17) 341-351
Usually, fibroblasts are frozen in dimethyl sulphoxide (DMSO, 10% v/v) at a cooling rate of 1 °C/min in a low-temperature (−80 °C) freezer (LTF) before storage in liquid nitrogen (LN2); however, a LTF is not always available. The purpose...
Postseismic relaxation following the 1992 M7.3 Landers and 1999 M7.1 Hector Mine earthquakes, southern California
J.C. Savage, J. L. Svarc
2009, Journal of Geophysical Research B: Solid Earth (114)
Postseismic relaxation (measured postseismic deformation less the deformation that would have occurred at the preseismic rate) has been monitored at the same 10 monuments over ???6 years following both the 1992 Landers and the 1999 Hector Mine earthquakes. For both earthquakes the displacement components of the observed relaxation are well...
Frequent eruptions of Mount Rainier over the last ∼2,600 years
T. W. Sisson, J.W. Vallance
2009, Bulletin of Volcanology (71) 595-618
Field, geochronologic, and geochemical evidence from proximal fine-grained tephras, and from limited exposures of Holocene lava flows and a small pyroclastic flow document ten–12 eruptions of Mount Rainier over the last 2,600 years, contrasting with previously published evidence for only 11–12 eruptions of the volcano for all of the Holocene. Except...
Declines in moose population density at Isle Royle National Park, MI, USA and accompanied changes in landscape patterns
N. R. De Jager, J. Pastor
2009, Landscape Ecology (24) 1389-1403
Ungulate herbivores create patterns of forage availability, plant species composition, and soil fertility as they range across large landscapes and consume large quantities of plant material. Over time, herbivore populations fluctuate, producing great potential for spatio-temporal landscape dynamics. In this study, we extend the spatial and temporal extent of a...
Short-term effects of hurricane disturbance on food availability for migrant songbirds during autumn stopover
R.C. Dobbs, W.C. Barrow Jr., C.W. Jeske, J. Dimiceli, T.C. Michot, J.W. Beck
2009, Wetlands (29) 123-134
Understanding the consequences of hurricanes on the food resources available to neotropical-nearctic migrant songbirds may provide important insight into the effects of hurricanes on migratory populations. During autumn migration 2006 we investigated the foraging ecology of two species of insectivorous migrants, Blue-gray Gnatcatcher (Polioptila caerulea) and Yellow Warbler (Dendroica petechia),...
Submarine canyon and fan systems of the California Continental Borderland
W. R. Normark, D.J.W. Piper, B.W. Romans, J.A. Covault, P. Dartnell, R. W. Sliter
2009, Special Paper of the Geological Society of America 141-168
Late Quaternary turbidite and related gravity-flow deposits have accumulated in basins of the California Borderland under a variety of conditions of sediment supply and sea-level stand. The northern basins (Santa Barbara, Santa Monica, and San Pedro) are closed and thus trap virtually all sediment supplied through submarine canyons and smaller...
Oral and parenteral immunization of chickens (Gallus gallus) against West Nile virus with recombinant envelope protein
C. A. Fassbinder-Orth, Erik K. Hofmeister, C. Weeks-Levy, W. H. Karasov
2009, Avian Diseases (53) 502-509
West Nile virus (WNV) causes morbidity and mortality in humans, horses, and in more than 315 bird species in North America. Currently approved WNV vaccines are designed for parenteral administration and, as yet, no effective oral WNV vaccines have been developed. WNV envelope (E) protein is a highly antigenic protein...
Criticisms biologically unwarranted and analytically irrelevant: Reply to Rominger et al.
Louis C. Bender, M.E. Weisenberger
2009, Journal of Wildlife Management (73) 806-810
The criticisms of Rominger et al. (2008) of our retrospective analysis of desert bighorn sheep (DBS; Ovis canadensis mexicana) dynamics in the San Andres Mountains of south-central New Mexico, USA, contained many biological errors and analytical oversights. Herein, we show that Rominger et al. (2008) 1) overstated both magnitude and...
Megablocks and melt pockets in the Chesapeake Bay impact structure constrained by magnetic field measurements and properties of the Eyreville and Cape Charles cores
A. K. Shah, D. L. Daniels, A. Kontny, J. Brozena
2009, Special Paper of the Geological Society of America 195-208
We use magnetic susceptibility and remanent magnetization measurements of the Eyreville and Cape Charles cores in combination with new and previously collected magnetic field data in order to constrain structural features within the inner basin of the Chesapeake Bay impact structure. The Eyreville core shows the first evidence of several-hundred-meter-thick...
Field camp: Using traditional methods to train the next generation of petroleum geologists
J.O. Puckette, N.H. Suneson
2009, Special Paper of the Geological Society of America 25-34
The summer field camp experience provides many students with their best opportunity to learn the scientific process by making observations and collecting, recording, evaluating, and interpreting geologic data. Field school projects enhance student professional development by requiring cooperation and interpersonal interaction, report writing to communicate interpretations, and the development of...
A sampling design framework for monitoring secretive marshbirds
Douglas H. Johnson, J.P. Gibbs, M. Herzog, S. Lor, N.D. Niemuth, C. A. Ribic, M. Seamans, T.L. Shaffer, W.G. Shriver, S.V. Stehman, W.L. Thompson
2009, Waterbirds (32) 203-215
A framework for a sampling plan for monitoring marshbird populations in the contiguous 48 states is proposed here. The sampling universe is the breeding habitat (i.e. wetlands) potentially used by marshbirds. Selection protocols would be implemented within each of large geographical strata, such as Bird Conservation Regions. Site selection will...
