Chapter A: Summary and findings
Morris L. Maslia, Rene J. Suarez-Soto, Jason B. Sautner, Barbara A. Anderson, L. Elliott Jones, Robert E. Faye, Mustafa M. Aral, Jiabao Guan, Wonyong Jang, Ilker T. Telci, Walter M. Grayman, Frank J. Bove, Perri Z. Ruckart, Susan M. Moore
2013, Report, Analyses and historical reconstruction of groundwater flow, contaminant fate and transport, and distribution of drinking water within the service areas of the Hadnot Point and Holcomb Boulevard water treatment plants and vicinities, U.S. Marine Corps Base Camp Lejeune, North Carolina
The Agency for Toxic Substances and Disease Registry (ATSDR) is conducting epidemiological studies to evaluate the potential for health effects from exposures to volatile organic compounds (VOCs) in finished water supplied to family housing units at U.S. Marine Corps Base Camp Lejeune, North Carolina (USMCB...
Simulation of three-dimensional groundwater flow
Rene J. Suarez-Soto, L. Elliott Jones, Morris L. Maslia
2013, Report, Analyses and historical reconstruction of groundwater flow, contaminant fate and transport, and distribution of drinking water within the service areas of the Hadnot Point and Holcomb Boulevard water treatment plants and vicinities, U.S. Marine Corps Base Camp Lejeune, North Carolina
The purpose of the study described in this supplement of Chapter A (Supplement 4) is to construct, simulate, and calibrate a groundwater-flow model that represents the hydro-geologic framework and related groundwater-flow conditions described by Faye (2012) and Faye et al. (2013) within the vicinity of the...
Groundwater hydrology and estimation of horizontal groundwater flux from the Rio Grande at selected locations in Albuquerque, New Mexico, 2003-9
Dale R. Rankin, Kurt J. McCoy, Geoff J.M. More, Jeffrey A. Worthington, Kimberly M. Bandy-Baldwin
2013, Scientific Investigations Report 2012-5007
The Albuquerque, New Mexico, area has two principal sources of water: groundwater from the Santa Fe Group aquifer system and surface water from the San Juan-Chama Diversion Project. From 1960 to 2002, groundwater withdrawals from the Santa Fe Group aquifer system have caused water levels to decline more than 120...
Holocene sediment distribution on the inner continental shelf of northeastern South Carolina: implications for the regional sediment budget and long-term shoreline response
Jane F. Denny, William C. Schwab, Wayne E. Baldwin, Walter A. Barnhardt, Paul T. Gayes, R.A. Morton, John C. Warner, Neal W. Driscoll, George Voulgaris
2013, Continental Shelf Research (56) 56-70
High-resolution geophysical and sediment sampling surveys were conducted offshore of the Grand Strand, South Carolina to define the shallow geologic framework of the inner shelf. Results are used to identify and map Holocene sediment deposits, infer sediment transport pathways, and discuss implications for the regional coastal sediment budget. The thickest...
Characterizing wave- and current- induced bottom shear stress: U.S. middle Atlantic continental shelf
P. Soupy Dalyander, Bradford Butman, Christopher R. Sherwood, Richard P. Signell, John L. Wilkin
2013, Continental Shelf Research (52) 73-86
Waves and currents create bottom shear stress, a force at the seabed that influences sediment texture distribution, micro-topography, habitat, and anthropogenic use. This paper presents a methodology for assessing the magnitude, variability, and driving mechanisms of bottom stress and resultant sediment mobility on regional scales using numerical model output. The...
The response of soil organic carbon of a rich fen peatland in interior Alaska to projected climate change
Zhaosheng Fan, Anthony David McGuire, Merritt R. Turetsky, Jennifer W. Harden, James Michael Waddington, Evan S. Kane
2013, Global Change Biology (19) 604-620
It is important to understand the fate of carbon in boreal peatland soils in response to climate change because a substantial change in release of this carbon as CO2 and CH4 could influence the climate system. The goal of this research was to synthesize the results of a field water...
Nutrient concentrations in surface water and groundwater, and nitrate source identification using stable isotope analysis, in the Barnegat Bay-Little Egg Harbor watershed, New Jersey, 2010–11
Christine M. Wieben, Ronald J. Baker, Robert S. Nicholson
2013, Scientific Investigations Report 2012-5287
Five streams in the Barnegat Bay-Little Egg Harbor (BB-LEH) watershed in southern New Jersey were sampled for nutrient concentrations and stable isotope composition under base-flow and stormflow conditions, and during the growing and nongrowing seasons, to help quantify and identify sources of nutrient loading. Samples were analyzed for concentrations of...
Special issue on geostatistical and spatiometrical modeling of coal resources
Ricardo A. Olea
2013, International Journal of Coal Geology (112)
Descriptive models, grade-tonnage relations, and databases for the assessment of sediment-hosted copper deposits: with emphasis on deposits in the Central Africa Copperbelt, Democratic Republic of the Congo and Zambia: Chapter J in Global mineral resource assessment
Cliff D. Taylor, J. Douglas Causey, Paul Denning, Jane M. Hammarstrom, Timothy S. Hayes, John D. Horton, Michael J. Kirschbaum, Heather L. Parks, Anna B. Wilson, Niki E. Wintzer, Michael L. Zientek
2013, Scientific Investigations Report 2010-5090-J
The Central African Copperbelt (CACB) is one of the most important copper-producing regions of the world. The majority of copper produced in Africa comes from this region defined by the Neoproterozoic Katanga sedimentary basin of the southern Democratic Republic of the Congo (DRC) and northern Zambia. Copper in the CACB...
Seismic imaging of the Waltham Canyon fault, California: comparison of ray‐theoretical and Fresnel volume prestack depth migration
Klaus Bauer, Trond Ryberg, Gary S. Fuis, Stefan Luth
2013, Bulletin of the Seismological Society of America (103) 340-352
Near‐vertical faults can be imaged using reflected refractions identified in controlled‐source seismic data. Often theses phases are observed on a few neighboring shot or receiver gathers, resulting in a low‐fold data set. Imaging can be carried out with Kirchhoff prestack depth migration in which migration noise is suppressed by constructive...
Flood-inundation maps for the Flatrock River at Columbus, Indiana, 2012
William F. Coon
2013, Scientific Investigations Map 3241
Digital flood-inundation maps for a 5-mile reach of the Flatrock River on the western side of Columbus, Indiana, from County Road 400N to the river mouth at the confluence with Driftwood River, were created by the U.S. Geological Survey (USGS) in cooperation with the Indiana Department of Transportation. The inundation...
Holocene core logs and site methods for modern reef and head-coral cores - Dry Tortugas National Park, Florida
Todd D. Hickey, Christopher D. Reich, Kristine L. DeLong, Richard Z. Poore, John Brock
2013, Open-File Report 2012-1095
The Dry Tortugas are a series of islands, banks, and channels on a carbonate platform off the west end of the Florida Keys. Antecedent topography of the Dry Tortugas reflects carbonate accumulations of the last interglacial (marine isotope substage 5e, ~ 125,000 years ago, ka) when sea level was ~...
Modelling dendritic ecological networks in space: anintegrated network perspective
Erin E. Peterson, Jay M. Ver Hoef, Dan J. Isaak, Jeffrey A. Falke, Marie-Josée Fortin, Chris E. Jordon, Kristina McNyset, Pascal Monestiez, Aaron S. Ruesch, Aritra Sengupta, Nicholas Som, E. Ashley Steel, David M. Theobald, Christian E. Torgersen, Seth J. Wenger
2013, Ecology Letters (16) 707-719
Dendritic ecological networks (DENs) are a unique form of ecological networks that exhibit a dendritic network topology (e.g. stream and cave networks or plant architecture). DENs have a dual spatial representation; as points within the network and as points in geographical space. Consequently, some analytical methods used to quantify relationships...
Simulation of the shallow groundwater-flow system in the Forest County Potawatomi Community, Forest County, Wisconsin
Michael N. Fienen, David A. Saad, Paul F. Juckem
2013, Scientific Investigations Report 2012-5289
The shallow groundwater system in the Forest County Potawatomi Comminity, Forest County, Wisconsin, was simulated by expanding and recalibrating a previously calibrated regional model. The existing model was updated using newly collected water-level measurements, inclusion of surface-water features beyond the previous near-field boundary, and refinements to surface-water features. The updated...
Evapotranspiration from marsh and open-water sites at Upper Klamath Lake, Oregon, 2008--2010
David I. Stannard, Marshall W. Gannett, Danial J. Polette, Jason M. Cameron, M. Scott Waibel, J. Mark Spears
2013, Scientific Investigations Report 2013-5014
Water allocation in the Upper Klamath Basin has become difficult in recent years due to the increase in occurrence of drought coupled with continued high water demand. Upper Klamath Lake is a central component of water distribution, supplying water downstream to the Klamath River, supplying water for irrigation diversions, and...
Characterization and simulation of fate and transport of selected volatile organic compounds in the vicinities of the Hadnot Point Industrial Area and landfill
L. Elliott Jones, René J. Suárez-Soto, Barbara A. Anderson, Morris L. Maslia
2013, Report, Analyses and historical reconstruction of groundwater flow, contaminant fate and transport, and distribution of drinking water within the service areas of the Hadnot Point and Holcomb Boulevard Water Treatment Plants and vicinities, U.S. Marine Corps Base Camp Lejeune, North Carolina
This supplement of Chapter A (Supplement 6) describes the reconstruction (i.e. simulation) of historical concentrations of tetrachloroethylene (PCE), trichloroethylene (TCE), and benzene3 in production wells supplying water to the Hadnot Base (USMCB) Camp Lejeune, North Carolina (Figure S6.1). A fate and transport model (i.e., MT3DMS [Zheng and Wang 1999]) was...
Modeling lahar behavior and hazards
Vernon Manville, Jon J. Major, Sarah A. Fagents
2013, Book chapter, Modeling volcanic processes: the physics and mathematics of volcanism
Lahars are highly mobile mixtures of water and sediment of volcanic origin that are capable of traveling tens to > 100 km at speeds exceeding tens of km hr-1. Such flows are among the most serious ground-based hazards at many volcanoes because of their sudden onset, rapid advance rates, long...
Uncertainty in assessing the impacts of global change with coupled dynamic species distribution and population models
Erin Conlisk, Alexandra D. Syphard, Janet Franklin, Lorraine E. Flint, Alan L. Flint, Helen Regan
2013, Global Change Biology (19) 858-869
Concern over rapid global changes and the potential for interactions among multiple threats are prompting scientists to combine multiple modelling approaches to understand impacts on biodiversity. A relatively recent development is the combination of species distribution models, land‐use change predictions, and dynamic population models to predict the relative and combined...
Application and evaluation of electromagnetic methods for imaging saltwater intrusion in coastal aquifers: Seaside Groundwater Basin, California
Vanessa Nenna, Daan Herckenrather, Rosemary Knight, Nick Odlum, Darcy McPhee
2013, Geophysics (78) B77-B88
Developing effective resource management strategies to limit or prevent saltwater intrusion as a result of increasing demands on coastal groundwater resources requires reliable information about the geologic structure and hydrologic state of an aquifer system. A common strategy for acquiring such information is to drill sentinel wells near the coast...
Drought, deluge and declines: the impact of precipitation extremes on amphibians in a changing climate
Susan C. Walls, William J. Barichivich, Mary E. Brown
2013, Biology (2) 399-418
The Class Amphibia is one of the most severely impacted taxa in an on-going global biodiversity crisis. Because amphibian reproduction is tightly associated with the presence of water, climatic changes that affect water availability pose a particularly menacing threat to both aquatic and terrestrial-breeding amphibians. We explore the impacts that...
Modeling sediment accumulation in North American playa wetlands in response to climate change, 1940-2100
Lucy Burris, Susan K. Skagen
2013, Climatic Change (117) 69-83
Playa wetlands on the west-central Great Plains of North America are vulnerable to sediment infilling from upland agriculture, putting at risk several important ecosystem services as well as essential habitats and food resources of diverse wetland-dependent biota. Climate predictions for this semi-arid area indicate reduced precipitation which may alter rates...
Burial and exhumation of temperate bedrock reefs as elucidated by repetitive high-resolution sea floor sonar surveys: Spatial patterns and impacts to species' richness and diversity
Curt D. Storlazzi, Theresa A. Fregoso, Jared D. Figurski, Jan Freiwald, Steve I. Lonhart, David P. Finlayson
2013, Continental Shelf Research (55) 40-51
To understand how chronic sediment burial and scour contribute to variation in the structure of algal and invertebrate communities on temperate bedrock reefs, the dynamics of the substrate and communities were monitored at locations that experience sand inundation and adjacent areas that do not. Co-located benthic scuba-transect surveys and high-resolution...
Vegetation classification and mapping, Vicksburg National Military Park, Mississippi
Chris Lea, Robert G. Waltermire, Carl Nordman
2013, National Park Service Natural Resource Technical Report NPS/GULN/NRTR—2013/710
Executive Summary The National Park Service (NPS) Gulf Coast Inventory and Monitoring Network, with the support of the National Park Service Vegetation Inventory completed vegetation classification and mapping for Vicksburg National Military Park (VICK), in Warren County, Mississippi, from 2004 to 2010. VICK is one of more than 250 NPS units...
The density dilemma: limitations on juvenile production in threatened salmon populations
Annika W. Walters, Timothy Copeland, David A. Venditti
2013, Ecology of Freshwater Fish
Density-dependent processes have repeatedly been shown to have a central role in salmonid population dynamics, but are often assumed to be negligible for populations at low abundances relative to historical records. Density dependence has been observed in overall spring/summer Snake River Chinook salmon Oncorhynchus tshawytscha production, but it is not...
Implications of the Mw9.0 Tohoku-Oki earthquake for ground motion scaling with source, path, and site parameters
Jonathan P. Stewart, Saburoh Midorikawa, Robert W. Graves, Khatareh Khodaverdi, Tadahiro Kishida, Hiroyuki Miura, Yousef Bozorgnia, Kenneth W. Campbell
2013, Earthquake Spectra (29) S1-S21
The Mw9.0 Tohoku-oki Japan earthquake produced approximately 2,000 ground motion recordings. We consider 1,238 three-component accelerograms corrected with component-specific low-cut filters. The recordings have rupture distances between 44 km and 1,000 km, time-averaged shear wave velocities of VS30 = 90 m/s to 1,900 m/s, and usable response spectral periods of 0.01 sec...
