Accounting for surveyor effort in large-scale monitoring programs
Kevin Aagaard, James E. Lyons, Wayne E. Thogmartin
2018, Journal of Fish and Wildlife Management (9) 459-466
Accounting for errors in wildlife surveys is necessary for reliable status assessments and quantification of uncertainty in estimates of population size. We apply a hierarchical log-linear Poisson regression model that accounts for multiple sources of variability in count data collected for the Integrated Waterbird Management and Monitoring Program during 2010–2014....
Geomorphic evolution of a gravel‐bed river under sediment‐starved vs. sediment‐rich conditions: River response to the world's largest dam removal
Amy E. East, Joshua B. Logan, Mark C. Mastin, Andrew C. Ritchie, Jennifer A. Bountry, Christopher S. Magirl, Joel B. Sankey
2018, Journal of Geophysical Research F: Earth Surface (123) 3338-3369
Understanding river response to sediment pulses is a fundamental problem in geomorphic process studies, with myriad implications for river management. However, because large sediment pulses are rare and usually unanticipated, they are seldom studied at field scale. We examine fluvial response to a massive (~20 Mt) sediment pulse released by the...
Remote sensing vegetation index methods to evaluate changes in greenness and evapotranspiration in riparian vegetation in response to the Minute 319 environmental pulse flow to Mexico
Pamela L. Nagler, Christopher J. Jarchow, Edward P. Glenn
2018, Proceedings of the International Association of Hydrological Sciences (380) 45-54
During the spring of 2014, 130 million m3 of water were released from the United States' Morelos Dam on the lower Colorado River to Mexico, allowing water to reach the Gulf of California for the first time in 13 years. Our study assessed the effects of water transfer or ecological environmental flows from...
The National Elevation Dataset
Dean B. Gesch, Gayla A. Evans, Michael J. Oimoen, Samantha T. Arundel
2018, Book chapter
The National Elevation Dataset (NED) is a primary elevation data product that has been produced and distributed by the U.S. Geological Survey (USGS). Since its inception, the USGS has compiled and published topographic information in many forms, and the NED is a significant development in this long line of products...
Executive summary. In Second State of the Carbon Cycle Report (SOCCR2): A Sustained Assessment Report
Richard Birdsey, Melanie A. Mayes, Patricia Romero-Lankao, Raymond G. Najjar, Sasha C. Reed, Nancy Cavallaro, Gyami Shrestha, Daniel J. Hayes, Laura Lorenzoni, Anne Marsh, Kathy Tedesco, Tom Wirth, Zhiliang Zhu
Nancy Cavallaro, Gyami Shrestha, Richard Birdsey, Melanie A. Mayes, Raymond G. Najjar, Sasha C. Reed, Patricia Romero-Lankao, Zhiliang Zhu, editor(s)
2018, Report, Second State of the Carbon Cycle Report (SOCCR2): A Sustained Assessment Report
Central to life on Earth, carbon is essential to the molecular makeup of all living things and plays a key role in regulating global climate. To understand carbon’s role in these processes, researchers measure and evaluate carbon stocks and fluxes. A stock is the quantity of carbon contained in a...
Analysis of population change and movement using robust design removal data
William A. Link, Sarah J. Converse, Amy A. Yackel Adams, Nathan J. Hostetter
2018, Journal of Agricultural, Biological, and Environmental Statistics (23) 463-477
In capture-mark-reencounter studies, Pollock’s robust design combines methods for open populations with methods for closed populations. Open population features of the robust design allow for estimation of rates of death or permanent emigration, and closed population features enhance estimation of population sizes. We describe a similar design, but for use...
Predicting biological conditions for small headwater streams in the Chesapeake Bay watershed
Kelly O. Maloney, Zachary M. Smith, Claire Buchanan, Andrea Nagel, John A. Young
2018, Freshwater Science (4) 795-809
A primary goal for Chesapeake Bay watershed restoration is to improve stream health and function in 10% of stream miles by 2025. Predictive spatial modeling of stream conditions, when accurate, is one method to fill gaps in monitoring coverage and estimate baseline conditions for restoration goals. Predictive modeling can also...
A proposed seismic velocity profile database model
Shamsher Sadiq, Okan Ilkan, Sean K Ahdi, Yousef Bozorgina, Youssef M.A. Hashash, Dong Youp Kwak, Duhee Park, Alan Yong, Jonathan P. Stewart
2018, Conference Paper
We describe the data model that we intend to use in a publicly available site profile database under development for the United States. The initial implementation of the database contains data from California. Currently, our prototype data model consists of JavaScript Object Notation (JSON) format files for storing metadata and...
A geophysical characterization of the structural framework of the Camas Prairie Geothermal System, southcentral Idaho
Jonathan M.G. Glen, Lee Liberty, Jared R. Peacock, Erika Gasperikova, Tait E. Earney, William D. Schermerhorn, Drew L. Siler, John Shervais, Patrick Dobson
2018, Conference Paper, Geothermal's role in today's energy market
Play Fairway Analysis methods, utilizing existing geologic, thermal, geochemical, and geophysical data were employed in an initial assessment of geothermal resources in the Snake River Plain. These efforts identified the Camas Prairie in southcentral Idaho as a region with elevated resource potential. Subsequent efforts included structural and geophysical data collection...
Geothermal potential of the Umatilla Indian Reservation, Oregon: Evidence from detailed geophysical investigations
Brent Ritzinger, Jonathan M.G. Glen, Jared R. Peacock, Richard J. Blakely, Patrick Mills, Lydia M. Staisch, Scott E.K. Bennett, Brian L. Sherrod
2018, Conference Paper, Geothermal's role in today's energy market
Recent geologic and geophysical investigations were undertaken in northeastern Oregon to better assess earthquake hazards in the region and determine relative favorability for geothermal energy development on lands of the Confederated Tribes of the Umatilla Indian Reservation (CTUIR). This work was funded in part by a Bureau of Indian Affairs...
Estimating metal concentrations with regression analysis and water-quality surrogates at nine sites on the Animas and San Juan Rivers, Colorado, New Mexico, and Utah
M. Alisa Mast
2018, Scientific Investigations Report 2018-5116
The purpose of this report is to evaluate the use of site-specific regression models to estimate metal concentrations at nine U.S. Geological Survey streamflow-gaging stations on the Animas and San Juan Rivers in Colorado, New Mexico, and Utah. Downstream users could use these regression models to determine if metal concentrations...
The conceptual schema in geospatial data standard design with application to GroundWaterML2
Boyan Brodaric, Eric Boisvert, Peter Dahlhaus, Sylvain Grellet, Alexander Kmoch, Francois Letourneau, Jessica Lucido, Bruce Simons, Bernhard Wagner
2018, Open Geospatial Data, Software and Standards (3) 1-15
The explosive growth of geospatial data has stimulated the development of many standards aimed at decreasing data heterogeneity and enhancing data use. Well-established design methods for geospatial data standards typically involve the creation of two schemas for data structure, designated here as logical and physical, but this can lead to...
Estimating soil respiration in a subalpine landscape using point, terrain, climate and greenness data
Erin Michele Berryman, Melanie K. Vanderhoof, John B. Bradford, Todd Hawbaker, Paul D. Henne, Sean P. Burns, John M. Frank, Richard A. Birdsey, Michael G. Ryan
2018, Journal of Geophysical Research G: Biogeosciences (123) 3231-3249
Landscape carbon (C) flux estimates are necessary for assessing the ability of terrestrial ecosystems to buffer further increases in anthropogenic carbon dioxide (CO2) emissions. Advances in remote sensing have allowed for coarse-scale estimates of gross primary productivity (GPP) (e.g., MODIS 17), yet efforts to assess spatial patterns in respiration lag...
Sewage loading and microbial risk in urban waters of the Great Lakes
Sandra L. McLellan, Elizabeth P. Sauer, Steven R. Corsi, Melinda J. Bootsma, Alexandria B. Boehm, Susan K. Spencer, Mark A. Borchardt
2018, Elementa: Science of the Anthropocene (6) 1-15
Despite modern sewer system infrastructure, the release of sewage from deteriorating pipes and sewer overflows is a major water pollution problem in US cities, particularly in coastal watersheds that are highly developed with large human populations. We quantified fecal pollution sources and loads entering Lake Michigan from a large watershed...
Serpentinite‐rich gouge in a creeping segment of the Bartlett Springs Fault, northern California: Comparison with SAFOD and implications for seismic hazard
Diane E. Moore, Robert J. McLaughlin, James J. Lienkaemper
2018, Tectonics (37) 4515-4534
An exposure of a creeping segment of the Bartlett Springs Fault (BSF), part of the San Andreas Fault system in northern California, is a ~1.5‐m‐wide zone of serpentinite‐bearing fault gouge cutting through Late Pleistocene fluvial deposits. The fault gouge consists of porphyroclasts of antigorite serpentinite, talc, chlorite, and tremolite‐actinolite, along...
A video surveillance system to monitor breeding colonies of common terns (Sterna Hirundo)
J.L. Wall, Paul Marban, D.F. Brinker, J.D. Sullivan, M. Zimnik, J.L. Murrow, P. C. McGowan, Carl R. Callahan, Diann J. Prosser
2018, Journal of Visualized Experiments (137)
Many waterbird populations have faced declines over the last century, including the common tern (Sterna hirundo), a waterbird species with a widespread breeding distribution, that has been recently listed as endangered in some habitats of its range. Waterbird monitoring programs exist to track populations through time; however, some of the...
Tidal Wetlands and Estuaries
Lisamarie Windham-Myers, Wei Jun Cai, Simone Alin, Andreas Andersson, Joseph Crosswell, Kenneth Dunton, Jose Martin Hernandez-Ayon, Maria Herrmann, Audra L. Hinson, Charles Hopkinson, Jennifer Howard, Xinping Hu, Sara H. Knox, Kevin Kroeger, David Lagomasino, Patrick Megonigal, Raymond Najjar, May-Linn Paulsen, Dorothy Peteet, Emily Pidgeon, Karina Schafer, Zhaohui Aleck Wang, Maria Tzortziou, Elizabeth Watson
Jennifer Howard, Emily Pidgeon, editor(s)
2018, Book chapter, Second state of the carbon cycle report (SOCCR2): A sustained assessment report
1. The top 1 m of tidal wetland soils and estuarine sediments of North America contains 1,886 ± 1046 teragrams of carbon (Tg C). [High confidence, Very likely] 2. Soil carbon accumulation rate (i.e., sediment burial) in North American tidal wetlands is currently 9 ± 5 Tg C per year...
GSFLOW-GRASS v1.0.0: GIS-enabled hydrologic modeling of coupled groundwater–surface-water systems
G.-H. Crystal Ng, Andrew D. Wickert, Lauren D. Somers, Leila Saberi, Collin Cronkite-Ratcliff, Richard G. Niswonger, Jeffrey M. McKenzie
2018, Geoscientific Model Development (11) 4755-4777
The importance of water moving between the atmosphere and aquifers has led to efforts to develop and maintain coupled models of surface water and groundwater. However, developing inputs to these models is usually time-consuming and requires extensive knowledge of software engineering, often prohibiting their use by many researchers and water...
Land subsidence along the California Aqueduct in west-central San Joaquin Valley, California, 2003–10
Michelle Sneed, Justin T. Brandt, Michael Solt
2018, Scientific Investigations Report 2018-5144
Extensive groundwater withdrawal from the unconsolidated deposits in the San Joaquin Valley caused widespread aquifer-system compaction and resultant land subsidence from 1926 to 1970—locally exceeding 8.5 meters. The importation of surface water beginning in the early 1950s through the Delta-Mendota Canal and in the early 1970s through the California Aqueduct...
Simulation of groundwater flow and analysis of projected water use for the Rush Springs aquifer, western Oklahoma
J.H. Ellis
2018, Scientific Investigations Report 2018-5136
The U.S. Geological Survey, in cooperation with the Bureau of Reclamation and the Oklahoma Water Resources Board, (1) quantified the groundwater resources of the Rush Springs aquifer in western Oklahoma by developing a numerical groundwater-flow model, (2) evaluated the effects of estimated equal-proportionate-share (EPS) pumping rates on aquifer storage and...
Fish behavior and abundance monitoring near a floating surface collector in North Fork Reservoir, Clackamas River, Oregon, using multi-beam acoustic imaging sonar
Collin D. Smith, John M. Plumb, Noah S. Adams
2018, Open-File Report 2018-1182
An imaging sonar was used to assess the behavior and abundance of fish sized the same as salmonid smolt and bull trout (Salvelinus confluentus) at the entrance to the juvenile fish floating surface collector (FSC) at North Fork Reservoir, Oregon. The purpose of the FSC is to collect downriver...
Demographic characteristics of an avian predator, Louisiana Waterthrush (Parkesia motacilla), in response to its aquatic prey in a Central Appalachian USA watershed impacted by shale gas development
Mack W. Frantz, Petra B. Wood, George T. Merovich Jr.
David A. Lightfoot, editor(s)
2018, PLoS ONE (13) 1-19
We related Louisiana Waterthrush (Parkesia motacilla) demographic response and nest survival to benthic macroinvertebrate aquatic prey and to shale gas development parameters using models that accounted for both spatial and non-spatial sources of variability in a Central Appalachian USA watershed. In 2013, aquatic prey density and pollution intolerant genera (i.e.,...
Influence of river discharge on grass carp occupancy dynamics in south-eastern Iowa rivers
Christopher J. Sullivan, Michael J. Weber, Clay Pierce, Carlos A. Camacho
Michael J. Weber, editor(s)
2018, River Research and Applications (35) 60-67
Despite the longstanding presence of grass carp Ctenopharyngodon idella in the Upper Mississippi River (UMR) watershed, information regarding their populations remains largely unknown, in part because capture is difficult. Occupancy models are a popular wildlife assessment tool to account for imperfect detections but have been slow to be adopted in fisheries. Herein,...
Sediment transport model including short-lived radioisotopes: Model description and idealized test cases
Justin J. Birchler, Courtney K. Harris, Christopher R. Sherwood, Tara A Kniskern
2018, Journal of Marine Science and Engineering (6) 1-17
Geochronologies derived from sediment cores in coastal locations are often used to infer event bed characteristics such as deposit thicknesses and accumulation rates. Such studies commonly use naturally occurring, short-lived radioisotopes, such as Beryllium-7 (7Be) and Thorium-234 (234Th), to study depositional and post-depositional processes. These radioisotope activities, however, are not...
Modeling hydrodynamics, water temperature, and water quality in Klamath Straits Drain, Oregon and California, 2012–15
Annett B. Sullivan, Stewart A. Rounds
2018, Scientific Investigations Report 2018-5134
Executive SummaryLocated southwest of Klamath Falls, Oregon, Klamath Straits Drain is a 10.1-mile-long canal that conveys water uphill and northward through the use of pumps before discharging to the Klamath River. Klamath Straits Drain traverses an area that historically encompassed Lower Klamath Lake. Currently, the Drain receives water from farmland...
