Kawah Ijen volcanic activity: A review
Corentin Caudron, Devy Kamil Syahbana, Thomas Lecocq, Vincent van Hinsberg, Wendy McCausland, Antoine Triantafyllou, Thierry Camelbeeck, Alain Bernard, Surono
2015, Bulletin of Volcanology (77)
Kawah Ijen is a composite volcano located at the easternmost part of Java island in Indonesia and hosts the largest natural acidic lake in the world. We have gathered all available historical reports on Kawah Ijen’s activity since 1770 with the purpose of reviewing the temporal evolution of its activity....
Construction ages of the Upton Stone Chamber: Preliminary findings and suggestions for future luminescence research
Shannon A. Mahan, Frederick Martin, Cathy Taylor
2015, Quaternary Geochronology (30 ) 422-430
The Upton Chamber in Massachusetts, an earth-covered stone structure 3.4 meters (m) in diameter, with a corbelled stone dome, and a 4.3 m long entrance passageway, is studied with the aim of determining whether optically stimulated luminescence (OSL) dating methods can be used to establish the approximate construction date of...
Blackbrush (Coleogyne ramosissima Torr.): State of our knowledge and future challenges
Rosemary L. Pendleton, Burton K. Pendleton, Susan E. Meyer, Bryce A. Richardson, Todd C. Esque, Stanley G. Kitchen
2015, Conference Paper, The Colorado plateau VI: Science and management at the landscape scale
Covering 130,000 square miles and a wide range of elevations from desert to alpine in Arizona, Utah, Colorado, and New Mexico, the Colorado Plateau has long fascinated researchers. The Colorado Plateau VI provides readers with a plethora of updates and insights into land conservation and management questions currently surrounding the...
Potential application of radiogenic isotopes and geophysical methods to understand the hydrothermal dystem of the Upper Geyser Basin, Yellowstone National Park
James B. Paces, Andrew J. Long, Karl R. Koth
2015, Natural Resource Report NPS/YELL/NRR—2015/1077
Numerous geochemical and geophysical studies have been conducted at Yellowstone National Park to better understand the hydrogeologic processes supporting the thermal features of the Park. This report provides the first 87Sr/86Sr and 234U/238U data for thermal water from the Upper Geyser Basin (UGB) intended to evaluate whether heavy radiogenic isotopes...
Mechanisms of sediment flux between shallows and marshes
Jessica R. Lacy, L.M. Schile, J.C. Callaway, M.C. Ferner
2015, Conference Paper, The Proceedings of Coastal Sediments 2015
We conducted a field study to investigate temporal variation and forcing mechanisms of sediment flux between a salt marsh and adjacent shallows in northern San Francisco Bay. Suspended-sediment concentration (SSC), tidal currents, and wave properties were measured over the marsh, in marsh creeks, and in bay shallows. Cumulative sediment flux...
The role of suspension events in cross-shore and longshore suspended sediment transport in the surf zone
Bruce E. Jaffe
2015, Conference Paper, The Proceedings of the Coastal Sediments 2015
Suspension of sand in the surf zone is intermittent. Especially striking in a time series of concentration are periods of intense suspension, suspension events, when the water column suspended sediment concentration is an order of magnitude greater than the mean concentration. The prevalence, timing, and contribution of suspension events to...
Extensive feeding on sockeye salmon Oncorhynchus nerka smolts by bull trout Salvelinus confluentus during initial outmigration into a small, unregulated and inland British Columbia river
Nathan B. Furey, Scott G. Hinch, A.G. Lotto, David A. Beauchamp
2015, Journal of Fish Biology (86) 392-401
Stomach contents were collected and analysed from 22 bull trout Salvelinus confluentus at the edge of the Chilko Lake and Chilko River in British Columbia, Canada, during spring outmigration of sockeye salmon Oncorhynchus nerka smolts. Twenty of the 22 (>90%) stomachs contained prey items, virtually all identifiable prey items were outmigrant O. nerka smolts and stomach...
Long-term monitoring program: Evaluating chronic exposure of harlequin ducks and sea otters to lingering Exxon Valdez Oil in Western Prince William Sound
Daniel Esler, Lizabeth Bowen, A. Keith Miles, Brenda E. Ballachey, James L. Bodkin
2015, Report
We found that average cytochrome P4501A induction (as measured by EROD activity) during March 2014 was not elevated in wintering harlequin ducks captured in areas of Prince William Sound oiled by the 1989 Exxon Valdez oil spill, relative to those captured in unoiled areas. This result is consistent with findings...
2014 M=6.0 South Napa earthquake triggered widespread aftershocks and stressed several major faults and exotic fault clusters
Shinji Toda, Ross Stein
2015, Seismological Research Letters (86) 1593-1602
The strongest San Francisco Bay area earthquake since the 1989 Mw 7.0 Loma Prieta shock struck near Napa on 24 August 2014. Field mapping (Dawson et al., 2014; Earthquake Engineering Research Institute [EERI], 2014; Brocher et al., 2015) and seismic and geodetic source inversions (Barnhart et al., 2015; Dreger et...
Fecal indicator and pathogenic bacteria and their antibiotic resistance in alluvial groundwater of an irrigated agricultural region with dairies
Xunde Li, Edward R. Atwill, Elizabeth Antaki, Olin Applegate, Brian A. Bergamaschi, Ronald F. Bond, Jennifer T. Chase, Katherine M Ransom, William B. Samuels, Naoko Watanabe, Thomas Harter
2015, Journal of Environmental Quality (44) 1435-1447
Surveys of microbiological groundwater quality were conducted in a region with intensive animal agriculture in California, USA. The survey included monitoring and domestic wells in eight concentrated animal feeding operations (CAFOs) and 200 small (domestic and community supply district) supply wells across the region. Campylobacter was not detected in groundwater,...
Detection probabilities of electrofishing, hoop nets, and benthic trawls for fishes in two western North American rivers
Christopher D. Smith, Michael C. Quist, Ryan S. Hardy
2015, Journal of Fish and Wildlife Management (6) 371-391
Research comparing different sampling techniques helps improve the efficiency and efficacy of sampling efforts. We compared the effectiveness of three sampling techniques (small-mesh hoop nets, benthic trawls, boat-mounted electrofishing) for 30 species in the Green (WY, USA) and Kootenai (ID, USA) rivers by estimating conditional detection probabilities (probability of detecting...
Gunnison Sage-Grouse Centrocercus minimus
Jessica R. Young, Clait E. Braun, Sara J. Oyler-McCance, Cameron L. Aldridge, Patrick Magee, Michael A. Schroeder
2015, Book chapter
No abstract available...
Refinements to the Graves and Pitarka (2010) Broadband Ground Motion Simulation Method
Robert Graves, Arben Pitarka
2015, Seismological Research Letters (86) 75-80
This brief article describes refinements to the Graves and Pitarka (2010) broadband ground motion simulation methodology (GP2010 hereafter) that have been implemented in version 14.3 of the SCEC Broadband Platform (BBP). The updated version of our method on the current SCEC BBP is referred to as GP14.3. Our simulation technique...
Upscaling of U (VI) desorption and transport from decimeter‐scale heterogeneity to plume‐scale modeling
Gary P. Curtis, Matthias Kohler, Ramakrishnan Kannappan, Martin A. Briggs, Frederick D. Day-Lewis
2015, Technical Report DOE-USGS--SC0003681
Scientifically defensible predictions of field scale U(VI) transport in groundwater requires an understanding of key processes at multiple scales. These scales range from smaller than the sediment grain scale (less than 10 μm) to as large as the field scale which can extend over several kilometers. The key processes that...
The evolution of mapping habitat for northern spotted owls (Strix occidentalis caurina): A comparison of photo-interpreted, Landsat-based, and lidar-based habitat maps
Steven H. Ackers, Raymond J. Davis, K. Olsen, Katie M. Dugger
2015, Remote Sensing of Environment (156) 361-373
Wildlife habitat mapping has evolved at a rapid pace over the last few decades. Beginning with simple, often subjective, hand-drawn maps, habitat mapping now involves complex species distribution models (SDMs) using mapped predictor variables derived from remotely sensed data. For species that inhabit large geographic areas, remote sensing technology...
Factors affecting female space use in ten populations of prairie chickens
Virginia L. Winder, Kaylan M. Carrlson, Andrew J. Gregory, Christian A. Hagen, David A. Haukos, Dylan C. Kesler, Lena C. Larsson, Ty W. Matthews, Lance B. McNew, Michael Patten, Jim C. Pitman, Larkin A. Powell, Jennifer A. Smith, Tom Thompson, Donald H. Wolfe, Brett K. Sandercock
2015, Ecosphere (6) 1-17
Conservation of wildlife depends on an understanding of the interactions between animal movements and key landscape factors. Habitat requirements of wide-ranging species often vary spatially, but quantitative assessment of variation among replicated studies at multiple sites is rare. We investigated patterns of space use for 10 populations of two closely...
Stress and mass changes at a “wet” volcano: Example during the 2011–2012 volcanic unrest at Kawah Ijen volcano (Indonesia)
Corentin Caudron, Thomas Lecocq, Devy K. Syahbana, Wendy McCausland, Arnaud Watlet, Thierry Camelbeeck, Alain Bernard, Surono
2015, Journal of Geophysical Research (120) 5117-5134
Since 2010, Kawah Ijen volcano has been equipped with seismometers, and its extremely acid volcanic lake has been monitored using temperature and leveling sensors, providing unprecedented time resolution of multiparametric data for an acidic volcanic lake. The nature of stress and mass changes of the volcano is studied by combining seismic analyses and...
Foundations of water quality monitoring and assessment in the United States
Donna N. Myers
Satinder Ahuja, editor(s)
2015, Book chapter, Food, Energy, and Water: The Chemistry Connection
No abstract available....
Geologic framework for the assessment of undiscovered oil and gas resources in sandstone reservoirs of the Upper Jurassic-Lower Cretaceous Cotton Valley Group, U.S. Gulf of Mexico region
Jennifer D. Eoff, Russell F. Dubiel, Ofori N. Pearson, Katherine J. Whidden
2015, Conference Paper
The U.S. Geological Survey (USGS) is assessing the undiscovered oil and gas resources in sandstone reservoirs of the Upper Jurassic–Lower Cretaceous Cotton Valley Group in onshore areas and State waters of the U.S. Gulf of Mexico region. The assessment is based on geologic elements of a total petroleum system. Four...
Using monitoring data to map amphibian breeding hotspots and describe wetland vulnerability in Yellowstone and Grand Teton National Parks
Andrew M. Ray, Kristin Legg, Adam J. Sepulveda, Blake R. Hossack, Debra Patla
2015, Park Science (31) 112-117
Amphibians have been selected as a “vital sign” by several National Park Service (NPS) Inventory and Monitoring (I&M) networks. An eight-year amphibian monitoring data set provided opportunities to examine spatial and temporal patterns in amphibian breeding richness and wetland desiccation across Yellowstone and Grand Teton National Parks. Amphibian breeding richness...
Testing assumptions for conservation of migratory shorebirds and coastal managed wetlands
Jaime Collazo, James Lyons, Garth Herring
2015, Wetlands Ecology and Management
Managed wetlands provide critical foraging and roosting habitats for shorebirds during migration; therefore, ensuring their availability is a priority action in shorebird conservation plans. Contemporary shorebird conservation plans rely on a number of assumptions about shorebird prey resources and migratory behavior to determine stopover habitat requirements. For example,...
Prey use and provisioning rates of urban-nesting Mississippi Kites in west Texas
Brandi C. Welch, Clint W. Boal
2015, Journal of Raptor Research (49) 141-151
Urban ecosystems are attractive to several raptor species, including the Mississippi Kite (Ictinia mississippiensis). To better understand the niche filled by urban-nesting Mississippi Kites, we observed nesting kites at 10 nests for a total of 269 hr during the breeding seasons of 2010 and 2011. We assessed prey delivery rates...
Extreme variation of sulfur isotopic compositions in pyrite from the Qiuling sediment-hosted gold deposit, West Qinling orogen, central China: An in situ SIMS study with implications for the source of sulfur
Lei Chen, Xian-hua Li, Jian-wei Li, Albert H. Hofstra, Yu Liu, Alan E. Koenig
2015, Mineralium Deposita (50) 643-656
High spatial resolution textural (scanning electron microscope (SEM)), chemical (electron microprobe (EMP)) and laser ablation-inductively coupled plasma-mass spec- trometry (LA-ICP-MS)), and sulfur isotopic (secondary ion mass spectrometry (SIMS)) analyses of pyrite from the Qiuling sediment-hosted gold deposit (232±4 Ma) in the West Qinling orogen, central China were conducted to distinguish...
Soil formation: Chapter 6
Martin B. Goldhaber, Steven A. Banwart
2015, Book chapter, Soil carbon: Science, management and policy for multiple benefits
Soil formation reflects the complex interaction of many factors, among the most important of which are (i) the nature of the soil parent material, (ii) regional climate, (iii) organisms, including humans, (iv) topography and (v) time. These processes operate in Earth's critical zone; the thin veneer of our planet where...
A comparative study of surface waves inversion techniques at strong motion recording sites in Greece
Panagiotis C. Pelekis, Alexandros Savvaidis, Robert E. Kayen, Vasileios S. Vlachakis, George A. Athanasopoulos
2015, Conference Paper, Symposium on the Application of Geophysics to Engineering and Environmental Problems 2015
Surface wave method was used for the estimation of Vs vs depth profile at 10 strong motion stations in Greece. The dispersion data were obtained by SASW method, utilizing a pair of electromechanical harmonic-wave source (shakers) or a random source (drop weight). In this study, three inversion techniques were used...
