Utilizing multichannel electrical resistivity methods to examine the dynamics of the fresh water–seawater interface in two Hawaiian groundwater systems
Natasha T. Dimova, Peter W. Swarzenski, Henrieta Dulaiova, Craig R. Glenn
2012, Journal of Geophysical Research C: Oceans (117)
Multichannel electrical resistivity (ER) measurements were conducted at two contrasting coastal sites in Hawaii to obtain new information on the spatial scales and dynamics of the fresh water–seawater interface and rates of coastal groundwater exchange. At Kiholo Bay (located on the dry, Kona side of the Big Island) and at...
Accounts of damage from historical earthquakes in the northeastern Caribbean to aid in the determination of their location and intensity magnitudes
Claudia H. Flores, Uri S. ten Brink, William H. Bakun
2012, Open-File Report 2011-1133
Earthquakes have been documented in the northeastern Caribbean since the arrival of Columbus to the Americas; written accounts of these felt earthquakes exist in various parts of the world. To better understand the earthquake cycle in the Caribbean, the records of earthquakes in earlier catalogs and historical documents from various...
Spatial distribution of landslides triggered from the 2007 Niigata Chuetsu–Oki Japan Earthquake
Brian D. Collins, Robert E. Kayen, Yasuo Tanaka
2012, Engineering Geology (127) 14-26
Understanding the spatial distribution of earthquake-induced landslides from specific earthquakes provides an opportunity to recognize what to expect from future events. The July 16, 2007 Mw 6.6 (MJMA 6.8) Niigata Chuetsu–Oki Japan earthquake triggered hundreds of landslides in the area surrounding the coastal city of Kashiwazaki and provides one such opportunity to...
Using assemblage data in ecological indicators: A comparison and evaluation of commonly available statistical tools
Joseph M. Smith, Martha E. Mather
2012, Ecological Indicators (13) 253-262
Ecological indicators are science-based tools used to assess how human activities have impacted environmental resources. For monitoring and environmental assessment, existing species assemblage data can be used to make these comparisons through time or across sites. An impediment to using assemblage data, however, is that these data are complex and...
Effects of biotic disturbances on forest carbon cycling in the United States and Canada
James E. Vogelmann, Craig D. Allen, Jeffrey A. Hicke, Ankur R. Desai, Michael C. Dietze, Ronald J. Hall, Edward H. (Ted) Hogg
2012, Global Change Biology (18) 7-34
Forest insects and pathogens are major disturbance agents that have affected millions of hectares in North America in recent decades, implying significant impacts to the carbon (C) cycle. Here, we review and synthesize published studies of the effects of biotic disturbances on forest C cycling in the United States and...
Effect of low-head lock and dam structures on migration and spawning of American shad and striped bass in the Cape Fear River, North Carolina
Joseph A. Smith, Joseph E. Hightower
2012, Transactions of the American Fisheries Society (141) 402-413
Anadromous fish populations within the Cape Fear River, North Carolina, have declined substantially since the late 1800s. Three low-head lock-and-dam (LD) structures on the river (LD-1–3) contributed to this decline by limiting access to upstream spawning habitat. We used egg sampling and sonic telemetry to examine the effects of the...
Effects of watershed densities of animal feeding operations on nutrient concentrations and estrogenic activity in agricultural streams
Serena Ciparis, Luke R. Iwanowicz, J. Reese Voshell
2012, Science of the Total Environment (414) 268-276
Application of manures from animal feeding operations (AFOs) as fertilizer on agricultural land can introduce nutrients and hormones (e.g. estrogens) to streams. A landscape-scale study was conducted in the Shenandoah River watershed (Virginia, USA) in order to assess the relationship between densities of AFOs in watersheds of agricultural streams and...
Using micro-seismicity and seismic velocities to map subsurface geologic and hydrologic structure within the Coso geothermal field, California
Joern Ole Kaven, Stephen H. Hickman, Nicholas C. Davatzes
2012, Conference Paper, Proceedings, Thirty-Seventh Workshop on Geothermal Reservoir Engineering
Geothermal reservoirs derive their capacity for fluid and heat transport in large part from faults and fractures. Micro-seismicity generated on such faults and fractures can be used to map larger fault structures as well as secondary fractures that add access to hot rock, fluid storage and recharge capacity necessary to...
Long-term creep rates on the Hayward Fault: Evidence for controls on the size and frequency of large earthquakes
James J. Lienkaemper, Forrest S. McFarland, Robert W. Simpson, Roger G. Bilham, David A. Ponce, John Boatwright, S. John Caskey
2012, Bulletin of the Seismological Society of America (102) 31-41
The Hayward fault (HF) in California exhibits large (Mw 6.5–7.1) earthquakes with short recurrence times (161±65 yr), probably kept short by a 26%–78% aseismic release rate (including postseismic). Its interseismic release rate varies locally over time, as we infer from many decades of surface creep data. Earliest estimates of creep...
Influence of a thin veneer of low-hydraulic-conductivity sediment on modelled exchange between river water and groundwater in response to induced infiltration
Donald O. Rosenberry, Richard W. Healy
2012, Hydrological Processes (26) 544-557
A thin layer of fine‐grained sediment commonly is deposited at the sediment–water interface of streams and rivers during low‐flow conditions, and may hinder exchange at the sediment–water interface similar to that observed at many riverbank‐filtration (RBF) sites. Results from a numerical groundwater‐flow model indicate that a low‐permeability veneer reduces the...
Miocene magmatism in the Bodie Hills volcanic field, California and Nevada: A long-lived eruptive center in the southern segment of the ancestral Cascades arc
David A. John, Edward A. du Bray, Richard J. Blakely, Robert J. Fleck, Peter G. Vikre, Stephen E. Box, Barry C. Moring
2012, Geosphere (8) 44-97
The Middle to Late Miocene Bodie Hills volcanic field is a >700 km2, long-lived (∼9 Ma) but episodic eruptive center in the southern segment of the ancestral Cascades arc north of Mono Lake (California, U.S.). It consists of ∼20 major eruptive units, including 4 trachyandesite stratovolcanoes emplaced along the...
In situ quantification of spatial and temporal variability of hyporheic exchange in static and mobile gravel-bed rivers
Donald O. Rosenberry, P. Zion Klos, Andrew Neal
2012, Hydrological Processes (26) 604-612
Seepage meters modified for use in flowing water were used to directly measure rates of exchange between surface and subsurface water in a gravel‐ and cobble bed river in western Pennsylvania, USA (Allegheny River, Qmean = 190 m3/s) and a sand‐ and gravel‐bed river in Colorado, USA (South Platte River,...
Autumn migration of of Mississippi Flyway mallards as determined by satellite telemetry
David G. Krementz, Kwasi Asante, Luke W. Naylor
2012, Journal of Fish and Wildlife Management (3) 238-251
We used satellite telemetry to study autumn migration timing, routes, stopover duration, and final destinations of mallardsAnas platyrhynchos captured the previous spring in Arkansas from 2004 to 2007. Of those mallards that still had functioning transmitters on September 15 (n = 55), the average date when autumn migration began was October 23...
Trolling may intensify exploitation in crappie fisheries
K. O. Meals, A. W. Dunn, Leandro E. Miranda
2012, North American Journal of Fisheries Management (32) 325-332
In some parts of the USA, anglers targeting crappies Pomoxis spp. are transitioning from mostly stationary angling with a single pole around submerged structures to using multiple poles while drifting with the wind or under power. This shift in fishing methods could result in a change in catch efficiency, possibly increasing exploitation...
Factors affecting fish biodiversity in floodplain lakes of the Mississippi Alluvial Valley
Leandro E. Miranda, Daniel J. Dembkowski
2012, Environmental Biology of Fishes (93) 357-368
River-floodplain ecosystems offer some of the most diverse and dynamic environments in the world. Accordingly, floodplain habitats harbor diverse fish assemblages. Fish biodiversity in floodplain lakes may be influenced by multiple variables operating on disparate scales, and these variables may exhibit a hierarchical organization depending on whether one variable governs...
Survey of hydrologic models and hydrologic data needs for tracking flow in the Rio Grande, north-central New Mexico, 2010
Anne Tillery, Jack R. Eggleston
2012, Scientific Investigations Report 2011-5207
The six Middle Rio Grande Pueblos have prior and paramount rights to deliveries of water from the Rio Grande for their use. When the pueblos or the Bureau of Indian Affairs Designated Engineer identifies a need for additional flow on the Rio Grande, the Designated Engineer is tasked with deciding...
Preliminary analysis of the hydrologic effects of temporary shutdowns of the Rondout-West Branch Water Tunnel on the groundwater-flow system in Wawarsing, New York
Frederick Stumm, Anthony Chu, Michael D. Como, Michael L. Noll
2012, Scientific Investigations Report 2012-5015
Flooding of streets and residential basements, and bacterial contamination of private-supply wells with Escherichia coli (E. coli) are recurring problems in the Rondout Valley near the Town of Wawarsing, Ulster County, New York. Leakage from the Rondout-West Branch (RWB) Water Tunnel and above-normal precipitation have been suspected of causing elevated...
Mineral Commodity Summaries 2012
2012, Mineral Commodity Summaries 2012
Each chapter of the 2012 edition of the U.S. Geological Survey (USGS) Mineral Commodity Summaries (MCS) includes information on events, trends, and issues for each mineral commodity as well as discussions and tabular presentations on domestic industry structure, Government programs, tariffs, 5-year salient statistics, and world production and resources. The...
A caveat regarding diatom-inferred nitrogen concentrations in oligotrophic lakes
Heather A. Arnett, Jasmine E. Saros, M. Alisa Mast
2012, Journal of Paleolimnology (47) 277-291
Atmospheric deposition of reactive nitrogen (Nr) has enriched oligotrophic lakes with nitrogen (N) in many regions of the world and elicited dramatic changes in diatom community structure. The lakewater concentrations of nitrate that cause these community changes remain unclear, raising interest in the development of diatom-based transfer functions to infer...
Microhabitat selection by bobcats in the badlands and Black Hills of South Dakota, USA: a comparison of Prairie and forested habitats
Cory E. Mosby, Troy W. Grovenburg, Robert W. Klaver, Greg M. Schroeder, Lowell E. Schmitz, Jonathan A. Jenks
2012, The Prairie Naturalist (44) 47-57
An understanding of habitat selection is important for management of wildlife species. Although bobcat (Lynx rufus) resource selection has been addressed in many regions of the United States, little work has been conducted in the Northern Great Plains. From 2006–2008 we captured and radiocollared 20 bobcats in the Badlands...
Phosphorus and groundwater: Establishing links between agricultural use and transport to streams
Joseph L. Domagalski, Henry Johnson
2012, Fact Sheet 2012-3004
Phosphorus is a highly reactive element that is essential for life and forms a variety of compounds in terrestrial and aquatic ecosystems. In water, phosphorus may be present as the orthophosphate ion (PO43-) and is also present in all life forms as an essential component of cellular material. In natural...
Ocean-atmosphere dynamics during Hurricane Ida and Nor'Ida: An application of the coupled ocean-;atmosphere–wave–sediment transport (COAWST) modeling system
Maitane Olabarrieta, John C. Warner, Brandy N. Armstrong, Joseph B. Zambon, Ruoying He
2012, Ocean Modelling (43-44) 112-137
The coupled ocean–atmosphere–wave–sediment transport (COAWST) modeling system was used to investigate atmosphere–ocean–wave interactions in November 2009 during Hurricane Ida and its subsequent evolution to Nor'Ida, which was one of the most costly storm systems of the past two decades. One interesting aspect of this event is that it included two...
Flat-plate techniques for measuring reflectance of macro-algae (Ulva curvata)
Elijah W. Ramsey III, Amina Rangoonwala, Mads Solgaard Thomsen, Arthur Schwarzschild
2012, International Journal of Remote Sensing (33) 3147-3155
We tested the consistency and accuracy of flat-plate spectral measurements (400–1000 nm) of the marine macrophyte Ulva curvata. With sequential addition of Ulva thallus layers, the reflectance progressively increased from 6% to 9% with six thalli in the visible (VIS) and from 5% to 19% with ten thalli in the...
GloVis
Treva R. Houska, A.P. Johnson
2012, General Information Product 137
The Global Visualization Viewer (GloVis) trifold provides basic information for online access to a subset of satellite and aerial photography collections from the U.S. Geological Survey Earth Resources Observation and Science (EROS) Center archive. The GloVis (http://glovis.usgs.gov/) browser-based utility allows users to search and download National Aerial Photography Program (NAPP),...
Description and validation of an automated methodology for mapping mineralogy, vegetation, and hydrothermal alteration type from ASTER satellite imagery with examples from the San Juan Mountains, Colorado
Barnaby W. Rockwell
2012, Scientific Investigations Map 3190
The efficacy of airborne spectroscopic, or "hyperspectral," remote sensing for geoenvironmental watershed evaluations and deposit-scale mapping of exposed mineral deposits has been demonstrated. However, the acquisition, processing, and analysis of such airborne data at regional and national scales can be time and cost prohibitive. The Advanced Spaceborne Thermal Emission and...
