Apalachicola Bay interpreted seismic horizons and updated IRIS chirp seismic-reflection data
V.A. Cross, D.C. Twichell, D.S. Foster, T.F. O’Brien
2012, Open-File Report 2012-1003
Apalachicola Bay and St. George Sound contain the largest oyster fishery in Florida, and the growth and distribution of the numerous oyster reefs here are the combined product of modern estuarine conditions and the late Holocene evolution of the bay. A suite of geophysical data and cores were collected during...
Demonstrating usefulness of real-time monitoring at streambank wells coupled with active streamgages - Pilot studies in Wyoming, Montana, and Mississippi
Cheryl A. Eddy-Miller, Jim Constantz, Jerrod D. Wheeler, Rodney R. Caldwell, Jeannie R.B. Barlow
2012, Fact Sheet 2012-3054
Groundwater and surface water in many cases are considered separate resources, but there is growing recognition of a need to treat them as a single resource. For example, groundwater inflow during low streamflow is vitally important to the health of a stream for many reasons, including buffering temperature, providing good...
Relations between precipitation, groundwater withdrawals, and changes in hydrologic conditions at selected monitoring sites in Volusia County, Florida, 1995--2010
Louis C. Murray Jr.
2012, Scientific Investigations Report 2012-5075
A study to examine the influences of climatic and anthropogenic stressors on groundwater levels, lake stages, and surface-water discharge at selected sites in northern Volusia County, Florida, was conducted in 2009 by the U.S. Geological Survey. Water-level data collected at 20 monitoring sites (17 groundwater and 3 lake sites) in...
Land area change analysis following hurricane impacts in Delacroix, Louisiana, 2004--2009
Monica Palaseanu-Lovejoy, Christine J. Kranenburg, John Brock
2012, Scientific Investigations Map 3207
The purpose of this project is to provide improved estimates of Louisiana wetland land loss due to hurricane impacts between 2004 and 2009 based upon a change detection mapping analysis that incorporates pre- and post-landfall (Hurricanes Katrina, Rita, Gustav, and Ike) fractional water classification of a combination of high resolution...
Biodiversity of man-made open habitats in an underused country: a class of multispecies abundance models for count data
Yuichi Yamaura, J. Andrew Royle, Naoaki Shimada, Seigo Asanuma, Tamotsu Sato, Hisatomo Taki, Shun’ichi Makino
2012, Biodiversity and Conservation (21) 1365-1380
Since the 1960s, Japan has become highly dependent on foreign countries for natural resources, and the amount of managed lands (e.g. coppice, grassland, and agricultural field) has declined. Due to infrequent natural and human disturbance, early-successional species are now declining in Japan. Here we surveyed bees, birds, and plants in...
Quantifying components of the hydrologic cycle in Virginia using chemical hydrograph separation and multiple regression analysis
Ward E. Sanford, David L. Nelms, Jason P. Pope, David L. Selnick
2012, Scientific Investigations Report 2011-5198
This study by the U.S. Geological Survey, prepared in cooperation with the Virginia Department of Environmental Quality, quantifies the components of the hydrologic cycle across the Commonwealth of Virginia. Long-term, mean fluxes were calculated for precipitation, surface runoff, infiltration, total evapotranspiration (ET), riparian ET, recharge, base flow (or groundwater discharge)...
Water resources of Vernon Parish
Lawrence B. Prakken, Jason M. Griffith, Robert B. Fendick Jr.
2012, Fact Sheet 2012-3063
In 2005, about 6.67 million gallons per day (Mgal/d) of water were withdrawn in Vernon Parish, Louisiana, including about 6.46 Mgal/d from groundwater sources and 0.21 Mgal/d from surface-water sources. Public-supply use accounted for about 76 percent (5.06 Mgal/d) of the total water withdrawn. Other categories of use included rural...
Pore- and fracture-filling gas hydrate reservoirs in the Gulf of Mexico Gas Hydrate Joint Industry Project Leg II Green Canyon 955 H well
Myung W. Lee, T. S. Collett
2012, Marine and Petroleum Geology (34) 62-71
High-quality logging-while-drilling (LWD) downhole logs were acquired in seven wells drilled during the Gulf of MexicoGasHydrateJointIndustryProjectLegII in the spring of 2009. Well logs obtained in one of the wells, the GreenCanyon Block 955Hwell (GC955-H), indicate that a 27.4-m thick zone at the depth of 428 m below sea floor (mbsf;...
Lithostratigraphy from downhole logs in Hole AND-1B, Antarctica
Trevor Williams, Roger H. Morin, Richard D. Jarrard, Chris L. Jackolski, Stuart A. Henrys, Frank Niessen, Diana Magens, Gerhard Kuhn, Donata Monien, Ross D. Powell
2012, Geosphere (8) 127-140
The ANDRILL (Antarctic Drilling Project) McMurdo Ice Shelf (MIS) project drilled 1285 m of sediment in Hole AND–1B, representing the past 12 m.y. of glacial history. Downhole geophysical logs were acquired to a depth of 1018 mbsf (meters below seafloor), and are complementary to data acquired from the core. The...
Evaluation of NDVI to assess avian abundance and richness along the upper San Pedro River
T.M. McFarland, Charles van Riper III, G. E. Johnson
2012, Journal of Arid Environments (77) 45-53
Remote-sensing models have become increasingly popular for identifying, characterizing, monitoring, and predicting avian habitat but have largely focused on single bird species. The Normalized Difference Vegetation Index (NDVI) has been shown to positively correlate with avian abundance and richness and has been successfully applied to southwestern riparian systems which are...
Semiparametric bivariate zero-inflated Poisson models with application to studies of abundance for multiple species
Ali Arab, Scott H. Holan, Christopher K. Wikle, Mark L. Wildhaber
2012, Environmetrics (23) 183-196
Ecological studies involving counts of abundance, presence–absence or occupancy rates often produce data having a substantial proportion of zeros. Furthermore, these types of processes are typically multivariate and only adequately described by complex nonlinear relationships involving externally measured covariates. Ignoring these aspects of the data and implementing standard approaches can...
Reconciling estimates of the contemporary North American carbon balance among terrestrial biosphere models, atmospheric inversions, and a new approach for estimating net ecosystem exchange from inventory-based data
Daniel J. Hayes, David P. Turner, Graham Stinson, A. David McGuire, Yaxing Wei, Tristram O. West, Linda S. Heath, Bernardus de Jong, Brian G. McConkey, Richard A. Birdsey, Werner A. Kurz, Andrew R. Jacobson, Deborah N. Huntzinger, Yude Pan, W. Mac Post, Robert B. Cook
2012, Global Change Biology (18) 1282-1299
We develop an approach for estimating net ecosystem exchange (NEE) using inventory-based information over North America (NA) for a recent 7-year period (ca. 2000–2006). The approach notably retains information on the spatial distribution of NEE, or the vertical exchange between land and atmosphere of all non-fossil fuel sources and sinks...
Role of turbulence fluctuations on uncertainties of acoutic Doppler current profiler discharge measurements
Leticia Tarrab, Carlos M. Garcia, Mariano I. Cantero, Kevin Oberg
2012, Water Resources Research (48) W06507
This work presents a systematic analysis quantifying the role of the presence of turbulence fluctuations on uncertainties (random errors) of acoustic Doppler current profiler (ADCP) discharge measurements from moving platforms. Data sets of three-dimensional flow velocities with high temporal and spatial resolution were generated from direct numerical simulation (DNS) of...
Use of flow-normalization to evaluate nutrient concentration and flux changes in Lake Champlain tributaries, 1990-2009
Laura Medalie, Robert M. Hirsch, Stacey A. Archfield
2012, Journal of Great Lakes Research (38) 58-67
The U.S. Geological Survey evaluated 20 years of total phosphorus (P) and total nitrogen (N) concentration data for 18 Lake Champlain tributaries using a new statistical method based on weighted regressions to estimate daily concentration and flux histories based on discharge, season, and trend as explanatory variables. The use of...
Estimating parameters of hidden Markov models based on marked individuals: use of robust design data
William L. Kendall, Gary C. White, James E. Hines, Catherine A. Langtimm, Jun Yoshizaki
2012, Ecology (93) 913-920
Development and use of multistate mark-recapture models, which provide estimates of parameters of Markov processes in the face of imperfect detection, have become common over the last twenty years. Recently, estimating parameters of hidden Markov models, where the state of an individual can be uncertain even when it is detected,...
Studying biodiversity: is a new paradigm really needed?
James D. Nichols, Evan G. Cooch, Jonathan M. Nichols, John R. Sauer
2012, BioScience (62) 497-502
Authors in this journal have recommended a new approach to the conduct of biodiversity science. This data-driven approach requires the organization of large amounts of ecological data, analysis of these data to discover complex patterns, and subsequent development of hypotheses corresponding to detected patterns. This proposed new approach has been...
Landsat: A global land-imaging mission
Water Resources Division, U.S. Geological Survey
2012, Fact Sheet 2012-3072
Across four decades since 1972, Landsat satellites have continuously acquired space-based images of the Earth's land surface, coastal shallows, and coral reefs. The Landsat Program, a joint effort of the U.S. Geological Survey (USGS) and the National Aeronautics and Space Administration (NASA), was established to routinely gather land imagery from...
Distribution and geochemistry of selected trace elements in the Sacramento River near Keswick Reservoir
Ronald C. Antweiler, Howard E. Taylor, Charles N. Alpers
2012, Chemical Geology (298-9) 70-78
The effect of heavy metals from the Iron Mountain Mines (IMM) Superfund site on the upper Sacramento River is examined using data from water and bed sediment samples collected during 1996-97. Relative to surrounding waters, aluminum, cadmium, cobalt, copper, iron, lead, manganese, thallium, zinc and the rare-earth elements (REE) were...
Interim results from a study of the behavior of juvenile Chinook salmon at Cougar Reservoir and Dam, Oregon, March--August 2011
John W. Beeman, Hal C. Hansel, Amy C. Hansen, Philip V. Haner, Jamie M. Sprando, Collin D. Smith, Scott D. Evans
2012, Open-File Report 2012-1106
The movements and dam passage of yearling juvenile Chinook salmon implanted with acoustic transmitters and passive integrated transponder tags were studied at Cougar Reservoir and Dam, near Springfield, Oregon. A total of 411 hatchery fish and 26 wild fish were tagged and released between March 7 and May 21, 2011....
High-resolution geophysical data collected within Red Brook Harbor, Buzzards Bay, Massachusetts, in 2009
Aaron M. Turecek, William W. Danforth, Wayne E. Baldwin, Walter A. Barnhardt
2012, Open-File Report 2010-1091
The U.S. Geological Survey conducted a high-resolution geophysical survey within Red Brook Harbor, Massachusetts, from September 28 through November 17, 2009. Red Brook Harbor is located on the eastern edge of Buzzards Bay, south of the Cape Cod Canal. The survey area was approximately 7 square kilometers, with depths ranging...
Building the United States National Vegetation Classification
S. B. Franklin, D. Faber-Langendoen, M. Jennings, T. Keeler-Wolf, O. Loucks, R. Peet, D. Roberts, A. McKerrow
2012, Annali di Botanica - Coenology and Plant Ecology (2012) 1-9
The Federal Geographic Data Committee (FGDC) Vegetation Subcommittee, the Ecological Society of America Panel on Vegetation Classification, and NatureServe have worked together to develop the United States National Vegetation Classification (USNVC). The current standard was accepted in 2008 and fosters consistency across Federal agencies and non-federal partners for the description...
Gulf of Mexico Gas Hydrate Joint Industry Project Leg II logging-while-drilling data acquisition and analysis
Timothy S. Collett, Myung W. Lee, Margarita V. Zyrianova, Stefan A. Mrozewski, Gilles Guerin, Ann E. Cook, Dave S. Goldberg
2012, Marine and Petroleum Geology (34) 41-61
One of the objectives of the Gulf of Mexico Gas Hydrate Joint Industry Project Leg II (GOM JIP Leg II) was the collection of a comprehensive suite of logging-while-drilling (LWD) data within gas-hydrate-bearing sand reservoirs in order to make accurate estimates of the concentration of gas hydrates under various geologic...
Rapid microsatellite identification from Illumina paired-end genomic sequencing in two birds and a snake
Todd A. Castoe, Alexander W. Poole, A. P. Jason de Koning, Kenneth L. Jones, Diana F. Tomback, Sara J. Oyler-McCance, Jennifer A. Fike, Stacey L. Lance, Jeffrey W. Streicher, Eric N. Smith, David D. Pollock
2012, PLoS ONE (7)
Identification of microsatellites, or simple sequence repeats (SSRs), can be a time-consuming and costly investment requiring enrichment, cloning, and sequencing of candidate loci. Recently, however, high throughput sequencing (with or without prior enrichment for specific SSR loci) has been utilized to identify SSR loci. The direct "Seq-to-SSR" approach has an...
Science strategy for Core Science Systems in the U.S. Geological Survey, 2013-2023
R. Sky Bristol, Ned H. Euliss Jr., Nathaniel L. Booth, Nina Burkardt, Jay E. Diffendorfer, Dean B. Gesch, Brian E. McCallum, David M. Miller, Suzette A. Morman, Barbara S. Poore, Richard P. Signell, Roland J. Viger
2012, Open-File Report 2012-1093
Core Science Systems is a new mission of the U.S. Geological Survey (USGS) that grew out of the 2007 Science Strategy, “Facing Tomorrow’s Challenges: U.S. Geological Survey Science in the Decade 2007–2017.” This report describes the vision for this USGS mission and outlines a strategy for Core Science Systems to...
Strategic directions for U.S. Geological Survey water science, 2012-2022 - Observing, understanding, predicting, and delivering water science to the Nation
Eric J. Evenson, Randall C. Orndorff, Charles D. Blome, John Karl Böhlke, Paul K. Hershberger, Victoria E. Langenheim, Gregory J. McCabe, Scott E. Morlock, Howard W. Reeves, James P. Verdin, Holly S. Weyers, Tamara M. Wood
2012, Open-File Report 2012-1066
Executive Summary This report expands the Water Science Strategy that was begun in the USGS Science Strategy, “Facing Tomorrow’s Challenges—U.S. Geological Survey Science in the Decade 2007–2017” (U.S. Geological Survey, 2007). The report looks at the relevant issues facing society and develops a strategy built around observing, understanding, predicting, and delivering...
