PaCTS 1.0: A crowdsourced reporting standard for paleoclimate data
Natalie M. Kehrwald, Deborah Khider, Julien Emile-Geay, Nicholas P. McKay, Yolanda Gili, Daniel Garijo, Varun Ratnakar, Peter Brewer, Adam Csank, Emilie Dassie, Kristine Delong, Thomas Felix, William Gray, Lucas Jonkers, Michael Kahle, Darrell S. Kaufman, Julie N. Richey, Andreas Schmittner, Elaine Kennedy Sutherland, Montserrat Alonso-Garcia, Bertrand Sebastian, Oliver Bothe, Andrew Bunn, Manuel Chevalier, Pierre Francus, Amy Frappier, Simon Goring, Belen Martrat, Helen V. McGregor, Kathryn J. Allen, Fabien Arnaud, Yarrow L. Axford, Timothy T. Barrows, Lucie Bazin, Pilaar Birch, Elizabeth Bradley, Joshua Bregy, Emilie Capron, Olivier Cartapanis, Hong-Wei Chiang, Kim Cobb, Maxime Debret, Rene Dommain, Jianghui Du, Kelsey Dyez, Suellyn Emerick, Michael Erb, Georgina Falster, Walter Finsinger, Daniel Fortier, Nicolas Gauthier, Steven George, Eric Grimm, Jennifer Hertzberg, Fiona Hibbert, Aubrey Hillman, William Hobbs, Matthew Huber, Anna L. C. Hughes, Samuel Jaccard, Ruan Jiaoyang, Markus Kienast, Bronwen Konecky, Gael Le Roux, Vyacheslav Lyubchich, Valdir Novello, Lydia Olaka, Judson W. Partin, Christof Pearce, Steven J. Phipps, Cecile Pignol, Natalia Pietrowska, Maria-Serena Poli, Alexander Prokopenko, Franciele Schwanck, Christian Stepanek, George E. A. Swann, Richard Telford, Elizabeth R. Thomas, Zoe Thomas, Sarah Truebe, Lucien von Gunten, Amanda Waite, Nils Weitzel, Bruno Wilhelm, John B. Williams, Mai Winstrup, Ning Zhao, Yuxin Zhou
2019, Paleoceanography and Paleoclimatology (34) 1570-1596
The progress of science is tied to the standardization of measurements, instruments, and data. This is especially true in the Big Data age, where analyzing large data volumes critically hinges on that data being standardized. Accordingly, the lack of community-sanctioned data standards in paleoclimatology has largely precluded the benefits of...
Paleo calendar-effect adjustments in time-slice and transient climate-model simulations (PaleoCalAdjust v1.0): Impact and strategies for data analysis
Patrick J. Bartlein, Sarah Shafer
2019, Geoscientific Model Development (12) 3889-3913
The “paleo calendar effect” is a common expression for the impact that changes in the length of months or seasons over time, related to changes in the eccentricity of Earth's orbit and precession, have on the analysis or summarization of climate-model output. This effect can have significant implications for paleoclimate...
North American Bat Monitoring Program regional protocol for surveying with stationary deployments of echolocation recording devices: Narrative version 1.0, Pacific Northwestern US
Rogelio M. Rodriguez, Thomas J. Rodhouse, Jenny Barnett, Kathryn Irvine, Katharine M. Banner, Jeff Lonneker, Patricia C. Ormsbee
2019, Natural Resource Report NPS/UCBN/NRR—2019/1975
The outbreak of white-nose syndrome (WNS) and the growing awareness of the risks to bats from wind power generating facilities have driven radical changes to North American bat conservation. Over the last decade, formerly common species such as the little brown myotis (Myotis lucifugus) and hoary bat (Lasiurus cinereus) have...
Performances of WorldView-3, Sentinel-2, and Landsat-8 data in mapping impervious surface
George Z. Xian, Hua Shi, Jon Dewitz, Zhuoting Wu
2019, Remote Sensing Applications: Society and Environment (15)
Many efforts have been made to map developed impervious surface from remotely sensed information in the last two decades. The U.S. Geological Survey (USGS) developed the National Land Cover Database (NLCD) to provide consistent land cover and change products for the Nation since 2001. Percent impervious surface area (ISA), one...
The effect of resolution on terrain feature extraction
Samantha T. Arundel, Wenwen Li, Xiran Zhou
2019, Conference Paper, Geomorphometry 2018
Recent increase in the production of high-resolution digital elevation models (DEMs) from lidar data has led to interest in their use for terrain mapping. Although the impact of different resolutions has been studied relative to terrain characteristics like roughness, slope and curvature, its relationship to the extraction of terrain features...
An importance–satisfaction analysis of trout license holders in Georgia
H. J. TenHarmsel, B. B. Boley, Brian J. Irwin, Cecil A. Jennings
2019, North American Journal of Fisheries Management (39) 1227-1241
As anglers become increasingly diverse, fisheries managers are challenged to find ways to satisfy users with divergent preferences while conserving a limited resource on a limited budget. With this management challenge in mind, this study combines previous angler specialization research with an importance–satisfaction analysis (ISA) to aid fisheries managers in...
Black Carp in North America: A description of range, habitats, time of year, and methods of reported captures
Patrick Kroboth, Cortney Cox, Duane Chapman, Gregory W. Whitledge
2019, North American Journal of Fisheries Management (39) 1046-1055
Black Carp Mylopharyngodon piceus are considered invasive in North America. Since the first wild capture in 2003, collection records have increased, yet information summarizing successful collection methods is lacking. Reported capture methods throughout the Black Carp's native and introduced ranges vary providing minimal aid for determining control and monitoring methods. Here, we...
Characterizing and imaging sedimentary strata using depth-converted spectral ratios: An example from the Atlantic Coastal Plain of the Eastern U.S.
Thomas L. Pratt
2019, Bulletin of the Seismological Society of America (108) 2801-2815
Unconsolidated, near-surface sediments can have a profound influence on the amplitudes and frequencies of ground shaking during earthquakes, and these effects should be accounted for when using amplitude observations for seismic hazard assessments. This study explores methods to use teleseismic arrivals recorded on linear receiver arrays to characterize widespread, shallow...
Juvenile Chinook salmon (Oncorhynchus tshawytscha) survival in Lookout Point Reservoir, Oregon, 2018
Tobias J. Kock, Russell W. Perry, Gabriel S. Hansen, Philip V. Haner, Adam C. Pope, John M. Plumb, Karen M. Cogliati, Amy C. Hansen
2019, Open-File Report 2019-1097
A field study was conducted to estimate survival of juvenile Chinook salmon (Oncorhynchus tshawytscha) in Lookout Point Reservoir, Oregon, during 2018. The study consisted of releasing three groups of genetically-marked fish into the reservoir, and sampling them monthly. Juveniles were released during April 10–13 (116,708 fish), May 15–18 (31,911 fish),...
Hydrologic balance, water quality, chemical-mass balance, and geochemical modeling of hyperalkaline ponds at Big Marsh, Chicago, Illinois, 2016–17
Amy M. Gahala, Robert R. Seal, II, Nadine M. Piatak
2019, Scientific Investigations Report 2019-5078
Hyperalkaline (pH greater than 12) ponds and groundwater exist at Big Marsh near Lake Calumet, Chicago, Illinois, a site used by the steel industry during the mid-1900s to deposit steel- and iron-making waste, in particular, slag. The hyperalkaline ponds may pose a hazard to human health and the environment. The...
Development and evaluation of a record extension technique for estimating discharge at selected stream sites in New Hampshire
Scott A. Olson, Abraham J. Meyerhofer
2019, Scientific Investigations Report 2019-5066
Daily mean discharges are needed for rivers in New Hampshire for the management of instream flows. It is impractical, however, to continuously gage all streams in New Hampshire, and at many sites where information is needed, the discharge data required do not exist. For such sites, techniques for estimating discharge...
Flood-inundation maps for a 23-mile reach of the Medina River at Bandera, Texas, 2018
Namjeong Choi, Frank L. Engel
2019, Scientific Investigations Report 2019-5067
In 2018, the U.S. Geological Survey (USGS), in cooperation with the Bandera County River Authority and Groundwater District and the Texas Water Development Board, studied floods through the period of record to create a library of flood-inundation maps for the Medina River at Bandera, Texas. Digital flood-inundation maps for a...
Evaluating k-nearest neighbor (kNN) imputation models for species-level aboveground forest biomass mapping in northeast China
Yuanyuan Fu, Hong S He, Todd Hawbaker, Paul D. Henne, Zhiliang Zhu, David R. Larsen
2019, Remote Sensing (17) 1-20
Quantifying spatially explicit or pixel-level aboveground forest biomass (AFB) across large regions is critical for measuring forest carbon sequestration capacity, assessing forest carbon balance, and revealing changes in the structure and function of forest ecosystems. When AFB is measured at the species level using widely available remote sensing data, regional...
Acoustic tag retention rate varies between juvenile green and hawksbill sea turtles
Thomas Selby, Brian Smith, Michael Cherkiss, Andrew Crowder, Zandy Hillis-Starr, Clayton Pollock, Kristen Hart
2019, Animal Biotelemetry (7)
Background Biotelemetry has become a key tool for studying marine animals in the last decade, and a wide range of electronic tags are now available for answering a range of research questions. However, comparatively, less attention has been given to attachment methods for these tags and the implications of tag retention...
Strategic conservation for lesser prairie-chickens among landscapes of varying anthropogenic influence
Daniel S. Sullins, David A. Haukos, Joseph M. Lautenbach, Jonathan Lautenbach, Samantha G. Robinson, Mindy B. Rice, Brett K. Sandercock, John D. Kraft, Reid T. Plumb, Jonathan H. Reitz, J. M. Shawn Hutchinson, Christian A. Hagen
2019, Biological Conservation (238)
For millennia grasslands have provided a myriad of ecosystem services and have been coupled with human resource use. The loss of 46% of grasslands worldwide necessitates the need for conservation that is spatially, temporally, and socioeconomically strategic. In the Southern Great Plains of the United States, conversion of native grasslands...
Balancing sampling intensity against spatial coverage for a community science monitoring programme
Emily L. Weiser, Jay E. Diffendorfer, Ralph Grundel, Laura Lopez Hoffman, Samuel Pecoraro, Darius J. Semmens, Wayne E. Thogmartin
2019, Journal of Applied Ecology (56) 2252-2263
Community science is an increasingly integral part of biodiversity research and monitoring, often achieving broad spatial and temporal coverage but lower sampling intensity than studies conducted by professional scientists. When designing a community‐science monitoring programme, careful assessment of sampling designs that could be both feasible and successful at meeting...
Measuring suspended sediment in sand-bedded rivers using down-looking acoustic doppler current profilers
Molly S. Wood, Ricardo N. Szupiany, Justin A. Boldt, Timothy D. Straub, Marian M. Domanski
2019, Conference Paper
The use of side-looking acoustic Doppler velocity meters (ADVMs) to estimate fluvial suspended-sediment concentrations (SSC) has become more operational by the U.S. Geological Survey in recent years; however, direct transfer of these techniques to down-looking acoustic Doppler current profilers (ADCPs) currently is not widely feasible. Key assumptions in the sidelooking ADVM...
Temporally adaptive acoustic sampling to maximize detection across a suite of focal wildlife species
Cathleen Balantic, Therese M. Donovan
2019, Ecology and Evolution (9) 10582-10600
Acoustic recordings of the environment can produce species presence–absence data for characterizing populations of sound-producing wildlife over multiple spatial scales. If a species is present at a site but does not vocalize during a scheduled audio recording survey, researchers may incorrectly conclude that the species is absent (“false negative”)....
Carbon chemistry of intact versus chronically drained peatlands in the southeastern USA
Craig A. Stricker, Judith Z. Drexler, Kevin A. Thorn, Jamie A. Duberstein, Sam Rossman
2019, Journal of Geophysical Research: Biogeosciences (124) 2751-2767
The Great Dismal Swamp (GDS) is a large temperate swamp in Virginia/North Carolina with peat soils historically resistant to microbial decomposition. However, this peatland has been subject to ~200 years of disturbance during which extensive drainage, fire suppression, and wide-spread logging have increased decomposition and dramatically decreased the distribution of...
Small ponds in headwater catchments are a dominant influence on regional nutrient and sediment budgets
Noah M. Schmadel, Judson Harvey, Gregory E. Schwarz, Richard Alexander, Jesus D. Gomez-Velez, Durelle Scott, Scott W. Ator
2019, Geophysical Research Letters (46) 9669-9677
Small ponds—farm ponds, detention ponds, or impoundments below 0.01 km2—serve important human needs throughout most large river basins. Yet the role of small ponds in regional nutrient and sediment budgets is essentially unknown, currently making it impossible to evaluate their management potential to achieve water quality objectives. Here we used...
Local, temporal trajectories explain population-level responses to climate change in saguaro (Carnegiea gigantea)
Susana Rodriguez-Buritica, Daniel E. Winkler, Robert H. Webb, Lawrence Venable
2019, Ecosphere (10)
Population demography is typically assumed to be strongly influenced by climatic factors, particularly with succulent plants and cacti. The saguaro cactus (Carnegiea gigantea) is a long‐lived columnar cactus of the Sonoran Desert that experiences episodic recruitment and mortality. Previous studies have attributed long‐term changes in saguaro populations to climatic factors,...
Catalog of earthquake parameters and description of seismograph and infrasound stations at Alaskan volcanoes—January 1, 2013, through December 31, 2017
James P. Dixon, Scott D. Stihler, Matthew M. Haney, John J. Lyons, Dane M. Ketner, Katherine M. Mulliken, Thomas Parker, John Power
2019, Data Series 1115
Between January 1, 2013, and December 31, 2017, the Alaska Volcano Observatory (AVO) located a total of 28,172 earthquakes at volcanoes in Alaska. The annual totals are 3,840, 5,819, 5,297, 6,151, and 7,065 earthquakes for the years 2013 through 2017, respectively. This represents an average of 5,634 earthquakes per year,...
A space-time geostatistical model for probabilistic estimation of harmful algal bloom biomass and areal extent
Shiqi Fang, Dario Del Giudice, Donald Scavia, Caren E. Binding, Thomas B. Bridgeman, Justin D. Chaffin, Mary Anne Evans, Joseph Guinness, Thomas H. Johengen, Daniel R Obenour
2019, Science of the Total Environment (695)
Harmful algal blooms (HABs) have been increasing in intensity across many waterbodies worldwide, including the western basin of Lake Erie. Substantial efforts have been made to track these blooms using in situ sampling and remote sensing. However, such measurements do not fully capture HAB spatial and temporal dynamics due to...
Offshore shallow structure and sediment distribution, Punta Gorda to Point Arena, Northern California
Jeffrey W. Beeson, Samuel Y. Johnson
2019, Open-File Report 2019-1072
This publication consists of two map sheets that display shallow geologic structure, along with sediment distribution and thickness, for an approximately 150-km-long offshore section of the northern California coast between Punta Gorda and Point Arena. Each map sheet includes three maps at scales of either 1:100,000 or 1:200,000, and together...
Continuous stream discharge, salinity, and associated data collected in the lower St. Johns River and its tributaries, Florida, 2017
Patrick J. Ryan
2019, Open-File Report 2019-1078
The U.S. Army Corps of Engineers, Jacksonville District, plans to deepen the St. Johns River channel in Jacksonville, Florida, from 40 to 47 feet along 13 miles of the river channel, beginning at the mouth of the river at the Atlantic Ocean, to accommodate larger, fully loaded cargo vessels. The...
