Tsunami risk mapping simulation for Malaysia
S.Y. Teh, H. L. Koh, Y.T. Moh, D. L. De Angelis, J. Jiang
2011, Conference Paper, WIT Transactions on the Built Environment
The 26 December 2004 Andaman mega tsunami killed about a quarter of a million people worldwide. Since then several significant tsunamis have recurred in this region, including the most recent 25 October 2010 Mentawai tsunami. These tsunamis grimly remind us of the devastating destruction that a tsunami might inflict on...
Assessment of clinical pathology and pathogen exposure in sea otters (Enhydra lutris) bordering the threatened population in Alaska
Tracey Goldstein, Verena A. Gill, Pamela A. Tuomi, Daniel H. Monson, Alexander Burdin, Patricia A. Conrad, J. Lawrence Dunn, Cara L. Field, Christine K. Johnson, David A. Jessup, James L. Bodkin, Angela M. Doroff
2011, Journal of Wildlife Diseases (47) 579-592
Northern sea otter (Enhydra lutris kenyoni) abundance has decreased dramatically over portions of southwest Alaska, USA, since the mid-1980s, and this stock is currently listed as threatened under the Endangered Species Act. In contrast, adjacent populations in south central Alaska, USA, and Russia have been stable to increasing during the...
Optical ages indicate the southwestern margin of the Green Bay Lobe in Wisconsin, USA, was at its maximum extent until about 18,500 years ago
J.W. Attig, P.R. Hanson, J.E. Rawling, A.R. Young, E.C. Carson
2011, Geomorphology (130) 384-390
Samples for optical dating were collected to estimate the time of sediment deposition in small ice-marginal lakes in the Baraboo Hills of Wisconsin. These lakes formed high in the Baraboo Hills when drainage was blocked by the Green Bay Lobe when it was at or very near its maximum...
Age and tectonic setting of the Mesozoic McCoy Mountains Formation in western Arizona, USA
J.E. Spencer, S.M. Richard, G. E. Gehrels, J.D. Gleason, W.R. Dickinson
2011, Geological Society of America Bulletin (123) 1258-1274
The McCoy Mountains Formation consists of Upper Jurassic to Upper Cretaceous siltstone, sandstone, and conglomerate exposed in an east-west–trending belt in southwestern Arizona and southeastern California. At least three different tectonic settings have been proposed for McCoy deposition, and multiple tectonic settings are likely over the ∼80 m.y. age range...
Migrating swarms of brittle-failure earthquakes in the lower crust beneath Mammoth Mountain, California
D.R. Shelly, D.P. Hill
2011, Geophysical Research Letters (38)
Brittle-failure earthquakes in the lower crust, where high pressures and temperatures would typically promote ductile deformation, are relatively rare but occasionally observed beneath active volcanic centers. Where they occur, these earthquakes provide a rare opportunity to observe volcanic processes in the lower crust, such as fluid injection and migration, which...
Regional contamination versus regional dietary differences: Understanding geographic variation in brominated and chlorinated contaminant levels in polar bears
M.A. McKinney, R. J. Letcher, Jon Aars, E.W. Born, Marsha Branigan, R. Dietz, T.J. Evans, Geir W. Gabrielsen, D.C.G. Muir, Elizabeth L. Peacock, C. Sonne
2011, Environmental Science & Technology (45) 896-902
The relative contribution of regional contamination versus dietary differences to geographic variation in polar bear (Ursus maritimus) contaminant levels is unknown. Dietary variation between Alaska, Canada, East Greenland, and Svalbard subpopulations was assessed by muscle nitrogen and carbon stable isotope (δ15N, δ13C) and adipose fatty acid (FA) signatures relative to...
Arctic foxes, lemmings, and canada goose nest survival at cape Churchill, Manitoba
M.E. Reiter, D. E. Andersen
2011, Wilson Journal of Ornithology (123) 266-276
We examined factors influencing Canada Goose (Branta canadensis interior) annual nest success, including the relative abundance of collared lemmings (Dicrostonyx richardsoni), arctic fox (Alopex lagopus) den occupancy, nest density, and spring phenology using data collected during annual Canada Goose breeding area surveys at Cape Churchill, Manitoba. Nest...
A novel member of the family Hepeviridae from cutthroat trout (Oncorhynchus clarkii)
William Batts, Susan Yun, Ronald Hedrick, James Winton
2011, Virus Research (158) 116-123
Beginning in 1988, the Chinook salmon embryo (CHSE-214) cell line was used to isolate a novel virus from spawning adult trout in the state of California, USA. Termed the cutthroat trout (Oncorhynchus clarkii) virus (CTV), the small, round virus was not associated with disease, but was subsequently found to be...
Multiplets: Their behavior and utility at dacitic and andesitic volcanic centers
W. Thelen, S. Malone, M. West
2011, Journal of Geophysical Research B: Solid Earth (116)
Multiplets, or groups of earthquakes with similar waveforms, are commonly observed at volcanoes, particularly those exhibiting unrest. Using triggered seismic data from the 1980-1986 Mount St. Helens (MSH) eruption, we have constructed a catalog of multiplet occurrence. Our analysis reveals that the occurrence of multiplets is related, at least in...
Adapting generalization tools to physiographic diversity for the united states national hydrography dataset
B.P. Buttenfield, L.V. Stanislawski, C.A. Brewer
2011, Cartography and Geographic Information Science (38) 289-301
This paper reports on generalization and data modeling to create reduced scale versions of the National Hydrographic Dataset (NHD) for dissemination through The National Map, the primary data delivery portal for USGS. Our approach distinguishes local differences in physiographic factors, to demonstrate that knowledge about varying terrain (mountainous, hilly or...
Terrestrial source to deep-sea sink sediment budgets at high and low sea levels: Insights from tectonically active Southern California
J.A. Covault, B.W. Romans, S.A. Graham, A. Fildani, G.E. Hilley
2011, Geology (39) 619-622
Sediment routing from terrestrial source areas to the deep sea influences landscapes and seascapes and supply and filling of sedimentary basins. However, a comprehensive assessment of land-to-deep-sea sediment budgets over millennia with significant climate change is lacking. We provide source to sink sediment budgets using cosmogenic radionuclide–derived terrestrial denudation rates...
Wetland vegetation in Manzala lagoon, Nile Delta coast, Egypt: Rapid responses of pollen to altered nile hydrology and land use
C.E. Bernhardt, J.-D. Stanley, B. P. Horton
2011, Journal of Coastal Research (27) 731-737
The pollen record in a sediment core from Manzala lagoon on the Nile delta coastal margin of Egypt, deposited from ca. AD 1860 to 1990, indicates rapid coastal wetland vegetation responses to two primary periods of human activity. These are associated with artificially altered Nile hydrologic regimes in proximal areas and distal...
Effects of dynamically variable saturation and matrix-conduit coupling of flow in karst aquifers
Thomas Reimann, T. Geyer, W.B. Shoemaker, R. Liedl, M. Sauter
2011, Water Resources Research (47)
Well-developed karst aquifers consist of highly conductive conduits and a relatively low permeability fractured and/or porous rock matrix and therefore behave as a dual-hydraulic system. Groundwater flow within highly permeable strata is rapid and transient and depends on local flow conditions, i.e., pressurized or nonpressurized flow. The characterization of karst...
Seawater calcium isotope ratios across the Eocene-Oligocene transition
E.M. Griffith, A. Paytan, A. Eisenhauer, Thomas D. Bullen, E. Thomas
2011, Geology (39) 683-686
During the Eocene-Oligocene transition (EOT, ca. 34 Ma), Earth's climate cooled significantly from a greenhouse to an icehouse climate, while the calcite (CaCO3) compensation depth (CCD) in the Pacific Ocean increased rapidly. Fluctuations in the CCD could result from various processes that create an imbalance between calcium (Ca) sources to,...
Chapter 39 The Edwardsburg Formation and related rocks, Windermere Supergroup, central Idaho, USA
Karen Lund, Karl V. Evans, John N. Alienikoff
2011, Memoir of the Geological Society of America (36) 437-448
In central Idaho, Neoproterozoic stratified rocks are engulfed by the Late Cretaceous Idaho batholith and by Eocene volcanic and plutonic rocks of the Challis event. Studied sections in the Gospel Peaks and Big Creek areas of west-central Idaho are in roof pendants of the Idaho batholith. A drill core section...
Science as a fundamental framework for shaping policy discussions regarding the use of groundwater in the State of Michigan: A case study
A.D. Steinman, J.R. Nicholas, P.W. Seelbach, J.W. Allan, F. Ruswick
2011, Water Policy (13) 69-86
The availability and use of freshwater is a growing concern in the United States and around the globe. Despite apparently abundant water resources, several conflicts over water use have emerged in the Great Lakes region and the State of Michigan. These conflicts resulted in state legislation that both addresses water...
Atacamite and paratacamite from the ultramafic-hosted Logatchev seafloor vent field (14°45′N, Mid-Atlantic Ridge)
Vesselin Dekov, Tanya Boycheva, Ulf Halenius, Sven Petersen, Kjell Billstrom, Jens Stummeyer, G. Kamenov, W. Shanks
2011, Chemical Geology (286) 169-184
Atacamite and paratacamite are ubiquitous minerals associated with Cu-rich massive sulfides at the Logatchev hydrothermal field (Mid-Atlantic Ridge). In this work we provide new details on the mineralogy and geochemistry of these basic cupric chlorides. Our data support the notion that atacamite and paratacamite formation at submarine vent fields is...
Wind River watershed restoration, annual report November 2009 to October 2010.
P.J. Connolly, I.G. Jezorek
2011, Report
This report summarizes work completed by U.S. Geological Survey’s Columbia River Research Laboratory (USGS-CRRL) in the Wind River subbasin during the period November 2009 through October 2010 under Bonneville Power Administration (BPA) contract 46102. Long term research in the Wind River has focused on assessments of steelhead/rainbow trout Oncorhynchus mykiss...
Notes on the geology and meteorology of sites infected with white-nose syndrome before July 2010 in Southeastern United States
Christopher S. Swezey, Christopher P. Garrity
2011, NSS News (2011) 16-25
Since 2006, numerous bat colonies in North America have experienced unusually high incidences of mortality. In these colonies, bats are infected by a white fungus named Geomyces destructans, which has been observed on bat muzzles, noses, ears, and (or) wings. Although it is not exactly certain how and why these...
U.S. Geological Survey: A synopsis of Three-dimensional Modeling
Linda J. Jacobsen, Pierre D. Glynn, Geoff A. Phelps, Randall C. Orndorff, Gerald W. Bawden, V. J. S. Grauch
2011, Book chapter, Chapter 13 in <i>Synopsis of Current Three-dimensional Geological Mapping and Modeling in Geological Survey Organizations</i>
The U.S. Geological Survey (USGS) is a multidisciplinary agency that provides assessments of natural resources (geological, hydrological, biological), the disturbances that affect those resources, and the disturbances that affect the built environment, natural landscapes, and human society. Until now, USGS map products have been generated and distributed primarily as 2-D...
U is for undergrounder
W. H. Langer
2011, Aggregates Manager (16) 40-40
Adaption of egg and larvae sampling techniques for lake sturgeon and broadcast spawning fishes in a deep river
Edward F. Roseman, James Boase, Gregory W. Kennedy, Jaquelyn M. Craig, Karen Soper
2011, Journal of Applied Ichthyology (27) 89-92
In this report we describe how we adapted two techniques for sampling lake sturgeon (Acipenser fulvescens) and other fish early life history stages to meet our research needs in the Detroit River, a deep, flowing Great Lakes connecting channel. First, we developed a buoy‐less method for sampling fish eggs and...
Historical summer base flow and stormflow trends for New England rivers
Glenn A. Hodgkins, Robert W. Dudley
2011, Water Resources Research (47)
River base flow is important to aquatic ecosystems, particularly because of its influence on summer water temperatures. Summer (June through September) daily mean streamflows were separated into base flow and stormflow components by use of an automated method at 25 stations in the New England region of the United States...
And last comes XYZ
Bill Langer
2011, Aggregates Manager (16) 52-52
Catesian Coordinates can be used to specify the position of any point in three-dimensional space by measuring its distances from three mutually perpendicular planes....
Recovery of native treefrogs after removal of nonindigenous Cuban Treefrogs, Osteopilus septentrionalis
K.G. Rice, J.H. Waddle, M.W. Miller, M.E. Crockett, F.J. Mazzotti, H.F. Percival
2011, Herpetologica (67) 105-117
Florida is home to several introduced animal species, especially in the southern portion of the state. Most introduced species are restricted to the urban and suburban areas along the coasts, but some species, like the Cuban Treefrog (Osteopilus septentrionalis), are locally abundant in natural protected areas. Although Cuban...
