Time-domain electromagnetic surveys at Fort Irwin, San Bernardino County, California, 2010–12
Matthew K. Burgess, Paul A. Bedrosian
David C. Buesch, editor(s)
2014, Open-File Report 2013-1024-F
Between 2010 and 2012, a total of 79 time-domain electromagnetic (TEM) soundings were collected in 12 groundwater basins in the U.S. Army Fort Irwin National Training Center (NTC) study area to help improve the understanding of the hydrogeology of the NTC. The TEM data are discussed in this chapter in...
Empirical models for predicting volumes of sediment deposited by debris flows and sediment-laden floods in the transverse ranges of southern California
Joseph E. Gartner, Susan H. Cannon, Paul M Santi
2014, Engineering Geology (176) 45-56
Debris flows and sediment-laden floods in the Transverse Ranges of southern California pose severe hazards to nearby communities and infrastructure. Frequent wildfires denude hillslopes and increase the likelihood of these hazardous events. Debris-retention basins protect communities and infrastructure from the impacts of debris flows and sediment-laden floods and also provide...
U.S. Geological Survey external quality-assurance project report for the National Atmospheric Deposition Program / National Trends Network and Mercury Deposition Network, 2011-2012
Gregory A. Wetherbee, RoseAnn Martin
2014, Report
The U.S. Geological Survey operated six distinct programs to provide external quality-assurance monitoring for the National Atmospheric Deposition Program (NADP) / National Trends Network (NTN) and Mercury Deposition Network (MDN) during 2011–2012. The field-audit program assessed the effects of onsite exposure, sample handling, and shipping on the chemistry of NTN...
USGS/EPA collection protocol for bacterial pathogens in soil
Dale W. Griffin, F.L. Shaefer, Charlena Bowling, Dino Mattorano, Tonya Nichols, Erin Silvestri
2014, Report
This Sample Collection Procedure (SCP) describes the activities and considerations for the collection of bacterial pathogens from representative surface soil samples (0-5 cm). This sampling depth can be reached without the use of a drill rig, direct-push technology, or other mechanized equipment. This procedure can be used in most soil...
Groundwater conditions in Utah, spring of 2014
Carole B. Burden, Adam S. Birken, Steven J. Gerner, John P. Carricaburu, V. Noah Derrick, Paul Downhour, Lincoln Smith, Robert J. Eacret, Travis L. Gibson, Bradley A. Slaugh, Nickolas R. Whittier, James H. Howells, Howard K. Christiansen, Martel J. Fisher
2014, Cooperative Investigations Report 55
This is the fifty-first in a series of annual reports that describe groundwater conditions in Utah. Reports in this series, published cooperatively by the U.S. Geological Survey and the Utah Department of Natural Resources, Division of Water Rights, and the Utah Department of Environmental Quality, Division of Water Quality, provide...
Comparison of mineral weathering and biomass nutrient uptake in two small forested watersheds underlain by quartzite bedrock, Catoctin Mountain, Maryland, USA
Karen C. Rice, Jason R. Price
2014, Aquatic Geochemistry (20) 225-242
To quantify chemical weathering and biological uptake, mass-balance calculations were performed on two small forested watersheds located in the Blue Ridge Physiographic Province in north-central Maryland, USA. Both watersheds, Bear Branch (BB) and Fishing Creek Tributary (FCT), are underlain by relatively unreactive quartzite bedrock. Such unreactive bedrock and associated low...
Fate of nutrients in shallow groundwater receiving treated septage, Malibu, CA
John A. Izbicki
2014, Groundwater (52) 218-233
Treated wastewater discharged from more than 400 onsite wastewater treatment systems (OWTS) near the Civic Center area of Malibu, California, 40 km west of downtown Los Angeles, composes 28% of the recharge to a 3.4 km2 alluvial aquifer. On the basis of δ18O and δD data, the fraction of wastewater in...
Reduced disease in black abalone following mass mortality: Phage therapy and natural selection
Glenn R. VanBlaricom
2014, Frontiers in Microbiology (5) 10
Black abalone, Haliotis cracherodii, populations along the NE Pacific ocean have declined due to the rickettsial disease withering syndrome (WS). Natural recovery on San Nicolas Island (SNI) of Southern California suggested the development of resistance in island populations. Experimental challenges in one treatment demonstrated that progeny of disease-selected black abalone from...
Prevalence of pure versus mixed snow cover pixels across spatial resolutions in alpine environments: implications for binary and fractional remote sensing approaches
David J. Selkowitz, Richard Forster, Megan K. Caldwell
2014, Remote Sensing (6) 12478-12508
Remote sensing of snow-covered area (SCA) can be binary (indicating the presence/absence of snow cover at each pixel) or fractional (indicating the fraction of each pixel covered by snow). Fractional SCA mapping provides more information than binary SCA, but is more difficult to implement and may not be feasible with...
Thermal measurements of dark and bright surface features on Vesta as derived from Dawn/VIR
Federico Tosi, Maria Teresa Capria, De Sanctis, J.-Ph. Combe, F. Zambon, A. Nathues, S.E. Schröder, J.-Y. Li, E. Palomba, A. Longobardo, D.T. Blewett, B.W. Denevi, E. Palmer, F. Capaccioni, E. Ammannito, Timothy N. Titus, D.W. Mittlefehldt, J.M. Sunshine, C.T. Russell, C.A. Raymond, Dawn/VIR Team
2014, Icarus (240) 36-57
Remote sensing data acquired during Dawn’s orbital mission at Vesta showed several local concentrations of high-albedo (bright) and low-albedo (dark) material units, in addition to spectrally distinct meteorite impact ejecta. The thermal behavior of such areas seen at local scale (1-10 km) is related to physical properties that can provide...
When to be discrete: The importance of time formulation in understanding animal movement
Brett T. McClintock, Devin S. Johnson, Mevin Hooten, Jay M. Ver Hoef, Juan M. Morales
2014, Movement Ecology (2)
Animal movement is essential to our understanding of population dynamics, animal behavior, and the impacts of global change. Coupled with high-resolution biotelemetry data, exciting new inferences about animal movement have been facilitated by various specifications of contemporary models. These approaches differ, but most share common themes. One key distinction is...
Regional variability among nonlinear chlorophyll-phosphorus relationships in lakes
Christopher T. Filstrup, Tyler Wagner, Patricia A. Soranno, Emily H. Stanley, Craig A. Stow, Katherine E. Webster, John A. Downing
2014, Limnology and Oceanography (59) 1691-1703
The relationship between chlorophyll a (Chl a) and total phosphorus (TP) is a fundamental relationship in lakes that reflects multiple aspects of ecosystem function and is also used in the regulation and management of inland waters. The exact form of this relationship has substantial implications on its meaning and its use. We assembled...
A regional neural network model for predicting mean daily river water temperature
Tyler Wagner, Jefferson Tyrell DeWeber
2014, Journal of Hydrology (517) 187-200
Water temperature is a fundamental property of river habitat and often a key aspect of river resource management, but measurements to characterize thermal regimes are not available for most streams and rivers. As such, we developed an artificial neural network (ANN) ensemble model to predict mean daily water temperature in...
Spatial and temporal Brook Trout density dynamics: Implications for conservation, management, and monitoring
Tyler Wagner, Jefferson T. Deweber, Jason Detar, David Kristine, John A. Sweka
2014, Transactions of the American Fisheries Society (34) 258-269
Many potential stressors to aquatic environments operate over large spatial scales, prompting the need to assess and monitor both site-specific and regional dynamics of fish populations. We used hierarchical Bayesian models to evaluate the spatial and temporal variability in density and capture probability of age-1 and older Brook Trout Salvelinus fontinalis from...
Modeling spatially-varying landscape change points in species occurrence thresholds
Tyler Wagner, Stephen R. Midway
2014, Ecosphere (5) 1-16
Predicting species distributions at scales of regions to continents is often necessary, as large-scale phenomena influence the distributions of spatially structured populations. Land use and land cover are important large-scale drivers of species distributions, and landscapes are known to create species occurrence thresholds, where small changes in a landscape characteristic...
Hydrogeochemistry of prairie pothole region wetlands: Role of long-term critical zone processes
Martin B. Goldhaber, Christopher T. Mills, Jean M. Morrison, Craig A. Stricker, David M. Mushet, James W. LaBaugh
2014, Chemical Geology (387) 170-183
This study addresses the geologic and hydrogeochemical processes operating at a range of scales within the prairie pothole region (PPR). The PPR is a 750,000 km2portion of north central North America that hosts millions of small wetlands known to be critical habitat for waterfowl and other wildlife. At a local...
Dynamics of a large, restless, rhyolitic magma system at Laguna del Maule, southern Andes, Chile
Brad S. Singer, Nathan L. Andersen, Helene Le Mevel, Kurt L. Feigl, Charles DeMets, Basil Tikoff, Clifford H. Thurber, Brian R. Jicha, Carlos Cardonna, Loreto Cordova, Fernando Gil, Martyn J. Unsworth, Glyn Williams-Jones, Craig W. Miller, Judith Fierstein, Edward Hildreth, Jorge A. Vazquez
2014, GSA Today (24) 4-10
Explosive eruptions of large-volume rhyolitic magma systems are common in the geologic record and pose a major potential threat to society. Unlike other natural hazards, such as earthquakes and tsunamis, a large rhyolitic volcano may provide warning signs long before a caldera-forming eruption occurs. Yet, these signs—and what they imply...
Evaluating effects of Everglades restoration on American crocodile populations in south Florida using a spatially-explicit, stage-based population model
Timothy W. Green, Daniel H. Slone, Eric D. Swain, Michael S. Cherkiss, Melinda Lohmann, Frank J. Mazzotti, Kenneth G. Rice
2014, Wetlands (34) S213-S224
The distribution and abundance of the American crocodile (Crocodylus acutus) in the Florida Everglades is dependent on the timing, amount, and location of freshwater flow. One of the goals of the Comprehensive Everglades Restoration Plan (CERP) is to restore historic freshwater flows to American crocodile habitat throughout the Everglades....
Explanation of temporal clustering of tsunami sources using the epidemic-type aftershock sequence model
Eric L. Geist
2014, Bulletin of the Seismological Society of America (104) 2091-2103
Temporal clustering of tsunami sources is examined in terms of a branching process model. It previously was observed that there are more short interevent times between consecutive tsunami sources than expected from a stationary Poisson process. The epidemic‐type aftershock sequence (ETAS) branching process model is fitted to tsunami catalog events,...
Digital data in support of studies and assessments of coal and petroleum resources in the Appalachian basin
Michael H. Trippi, Scott A. Kinney, Gregory L. Gunther, Robert T. Ryder, Leslie F. Ruppert
Leslie F. Ruppert, Robert T. Ryder, editor(s)
2014, Professional Paper 1708-I.1
The Appalachian basin is a mature basin containing abundant oil, gas, and coal resources. Its fossil-fuel-bearing strata range in age from Cambrian to Permian and extend over the States of New York, Pennsylvania, Maryland, Ohio, West Virginia, Virginia, Kentucky, Tennessee, Georgia, and Alabama. The basin has provided abundant fossil fuels...
Introduction to selected references on fossil fuels of the central and southern Appalachian basin
Leslie F. Ruppert, Erika E. Lentz, Susan J. Tewalt, Yomayra A. Roman Colon
Leslie F. Ruppert, Robert T. Ryder, editor(s)
2014, Professional Paper 1708-H.1
The Appalachian basin contains abundant coal and petroleum resources that have been studied and extracted for at least 150 years. In this volume, U.S. Geological Survey (USGS) scientists describe the geologic framework and geochemical character of the fossil-fuel resources of the central and southern Appalachian basin. Separate subchapters (some previously...
In search of a Silurian total petroleum system in the Appalachian basin of New York, Ohio, Pennsylvania, and West Virginia
Robert T. Ryder, Christopher S. Swezey, Michael H. Trippi, Erika E. Lentz, K. Lee Avary, John A. Harper, William M. Kappel, Ronald G. Rea
Leslie F. Ruppert, Robert T. Ryder, editor(s)
2014, Professional Paper 1708-G.11
Oil and gas fields in Silurian carbonate and sandstone reservoirs in the Appalachian basin probably originated from one or more of the following source rocks: (1) Upper Ordovician Utica Shale, (2) Middle to Upper Devonian black shale, and (3) Lower to Upper Silurian shale and carbonate units. In this reconnaissance...
Appalachian basin bituminous coal: sulfur content and potential sulfur dioxide emissions of coal mined for electrical power generation
Michael H. Trippi, Leslie F. Ruppert, Emil Attanasi, Robert C. Milici, P.A. Freeman
2014, Professional Paper 1708-G.5
Data from 157 counties in the Appalachian basin of average sulfur content of coal mined for electrical power generation from 1983 through 2005 show a general decrease in the number of counties where coal mining has occurred and a decrease in the number of counties where higher sulfur coals (>2...
Coalbed-methane production in the Appalachian basin
Robert C. Milici, Desiree E. Polyak
Leslie F. Ruppert, Robert T. Ryder, editor(s)
2014, Professional Paper 1708-G.2
Coalbed methane (CBM) occurs in coal beds of Mississippian and Pennsylvanian (Carboniferous) age in the northern, central, and southern Appalachian basin coal regions, which extend almost continuously from Pennsylvania southward to Alabama. Most commercial CBM production in the Appalachian basin is from three structural subbasins: (1) the...
Assessment of Appalachian basin oil and gas resources: Carboniferous Coal-bed Gas Total Petroleum System
Robert C. Milici
Leslie F. Ruppert, Robert T. Ryder, editor(s)
2014, Professional Paper 1708-G.1
The Carboniferous Coal-bed Gas Total Petroleum System, which lies within the central and southern Appalachian basin, consists of the following five assessment units (AUs): (1) the Pocahontas Basin AU in southern West Virginia, eastern Kentucky, and southwestern Virginia; (2) the Central Appalachian Shelf AU in Tennessee, eastern...
