Rock alteration mapping in and around fossil shallow intrusions at Mt. Ruapehu New Zealand with laboratory and aerial hyperspectral imaging
Abbey Douglas, Gabor Kereszturi, Lauren N. Schaefer, Ben M. Kennedy
2022, Journal of Volcanology and Geothermal Research
Diagnostic absorption features in hyperspectral data can be used to identify a specific mineral or mineral associations. However, it is unknown how accurate hyperspectral mapping can be for identifying alteration mineral compositions at the resolution required to describe structures such as...
Insight into Hurricane Maria peak flows from the development and application of the Precipitation-Runoff Modeling System (PRMS): Including Río Grande de Arecibo, Puerto Rico, 1981–2017
Eric Swain, Jason C. Bellino
2022, Hydrology (11)
The Precipitation-Runoff Modeling System (PRMS) was used to develop a simulation of watershed hydrology on the island of Puerto Rico for the period 1981–2017, concentrating on the Río Grande de Arecibo, a river with some of the highest streamflows on the island. This development is part of the U.S....
Integrating Bayesian networks to forecast sea-level rise impacts on barrier island characteristics and habitat availability
Benjamin T. Gutierrez, Sara Zeigler, Erika E. Lentz, Emily J. Sturdivant, Nathaniel Plant
2022, Earth and Space Science (9)
Evaluation of sea-level rise (SLR) impacts on coastal landforms and habitats is a persistent need for informing coastal planning and management, including policy decisions, particularly those that balance human interests and habitat protection throughout the coastal zone. Bayesian networks (BNs) are used to model barrier island change under different SLR...
Klamath natural flow study, Upper Klamath Basin groundwater flow model
Jonathan A. Traum, Scott E. Boyce
2022, Report
The purpose of the Upper Klamath Basin Groundwater Flow Model (UKBGFM) is to simulate groundwater conditions in the Upper Klamath Basin under historical and predevelopment conditions. The UKBGFM quantifies estimates of and changes in groundwater levels, storage, pumping, drainage flow to tile drains, evapotranspiration, and flow between the Upper Klamath...
Plant community trajectories following livestock exclusion for conservation vary and hinge on initial invasion and soil-biocrust conditions in shrub steppe
Matthew J. Germino, Chad Raymond Kluender, Christopher R. Anthony
2022, Conservation Science and Practice (4)
Adjustments or complete withdrawal of livestock grazing are among the most common conservation actions in semiarid uplands, but outcomes can vary considerably with ecological context. Invasion by exotic annual grasses and the excessive wildfire they promote are increasing threats to semiarid shrub-steppe, and plant-community response to...
Bulk and intramolecular carbon isotopic compositions of hydrocarbon gases from laboratory pyrolysis of oil shale of the Green River Formation: Implications for isotope structures of kerogens
Xiaoqiang Li, Justin E. Birdwell, Juske Horita
2022, International Journal of Coal Geology (264)
Evaluation of intramolecular isotope distributions within organic compounds can provide important insights into gas formation processes and structural properties of gas-generating precursors, such as kerogen, bitumen, and oil, in natural reservoirs. Until recently, little has been known about the intramolecular isotope...
Comparing line feature morphology with scale specific sinuosity distributions: A modified earth mover’s distance
Barry J. Kronenfeld, Barbara Buttenfield, Ethan J. Shavers, Larry Stanislawski
2022, Conference Paper
No abstract available....
Systematic mapping of the ocean-continent transform plate boundary of the Queen Charlotte fault system, southeastern Alaska and western British Columbia—A preliminary bathymetric terrain model
Brian D. Andrews, Daniel S. Brothers, Peter Dartnell, J. Vaughn Barrie, Peter J. Haeussler, Kristen M. Green, H. Gary Greene, Nathaniel C. Miller, Jared W. Kluesner, Uri S. ten Brink
2022, Open-File Report 2022-1085
In 2015, U.S. Geological Survey scientists in collaboration with scientists from other institutions began a study of the Queen Charlotte fault—the first systematic study of the fault in more than three decades. The primary goal of the study was to gain a better understanding of the earthquake, tsunami, and underwater-landslide...
Contemporary (1984–2020) fire history metrics for the conterminous United States and ecoregional differences by land ownership
Melanie K. Vanderhoof, Todd Hawbaker, Casey Teske, Joe Noble, Jim Smith
2022, International Journal of Wildland Fire (31) 1167-1183
Background: Remotely sensed burned area products are critical to support fire modelling, policy, and management but often require further processing before use.Aim: We calculated fire history metrics from the Landsat Burned Area Product (1984–2020) across the conterminous U.S. (CONUS) including (1) fire frequency, (2) time since last burn (TSLB), (3) year of...
Affinity of the benthic foraminifer Cassidulinoides parkeriana (Brady) for whale-falls: Evidence from off western Vancouver Island, British Columbia, Canada
Mary McGann, Charles K. Paull
2022, Micropaleontology (68) 569-586
A partial skeleton of a blue or fin whale, estimated to have been 16.5 m in length and thought to have been lying on the seafloor for less than 10 years, was observed at a depth of 1288 m off western Vancouver Island, British Columbia, Canada (48.68° N, 126.84° W)....
Geologic map of the Mount Blue Sky (formerly Mount Evans) quadrangle, Clear Creek and Park Counties, Colorado
Logan Powell, Asha A. Mahatma, Yvette Kuiper, Chester A. Ruleman
2022, Open-File Report OF-22-11
The Mount Blue Sky (formerly Mount Evans) 7.5’ quadrangle lies in Park and Clear Creek counties, Colorado, about 60 km west of Denver. The highest elevation in the quadrangle is 14,265 ft (4,348 m) at the top of Mount Blue Sky. The lowest is at about 9,200 ft (2,804 m)...
Behavioral responses of native and invasive fishes of the Upper Mississippi River to 100 hp boat motor acoustic stimulus
Kelsie A. Murchy, Brooke J Vetter, Marybeth K. Brey, Allen F. Mensinger
2022, Management of Biological Invasions (13) 750-768
Acoustic deterrents are currently being considered for deployment at strategic bottlenecks, such as lock and dams of major rivers, to deter upstream movement of invasive carp. Previous studies have demonstrated that bighead and silver carp (Hypophthalmichthys nobilis and H. molitrix, respectively) display negative phonotaxis to playbacks of broadband sound recordings produced from...
Preface to the focus section on deformation models for the U.S. National Seismic Hazard Model
Frederick Pollitz, Alexandra Elise Hatem, Kaj M. Johnson
2022, Seismological Research Letters (93) 2969-2972
No abstract available....
Assessing the efficacy of using a parentage-based tagging survival model to evaluate two sources of mortality for juvenile Chinook salmon (Oncorhynchus tshawytscha) in Lookout Point Reservoir, Oregon
Dalton J. Hance, Tobias J. Kock, Russell W. Perry, Adam C. Pope
2022, Open-File Report 2022-1096
We conducted a study to assess the efficacy of using a parentage-based tagging survival model (PBT N-mixture model) to evaluate two sources of mortality for juvenile Chinook salmon (Oncorhynchus tshawytscha) in Lookout Point Reservoir, Oregon. The model was originally developed to evaluate reservoir mortality because of predation from piscivorous...
Warming-driven erosion and sediment transport in cold regions
Tinghu Zhang, Dongfeng Li, Amy E. East, Desmond E. Walling, Stuart N. Lane, Irina Overeem, Achim A. Beylich, Michele N Koppes, Xixi Lu
2022, Nature--Reviews of Earth and Environment (3) 832-851
Rapid atmospheric warming since the mid-twentieth century has increased temperature-dependent erosion and sediment-transport processes in cold environments, affecting food, energy and water security. In this Review, we summarize landscape changes in cold environments and provide a global inventory of increases in erosion and sediment yield driven...
A statistical framework for modelling migration corridors
Tristan A. Nuñez, Mark A. Hurley, Tabitha A. Graves, Anna C. Ortega, Hall Sawyer, Julien Fattebert, Jerod A. Merkle, Matthew J. Kauffman
2022, Methods in Ecology and Evolution (13) 2635-2648
1. Management of animal populations requires spatially explicit knowledge of movement corridors, such as those used during seasonal migrations. GPS tracking data allows for mapping of corridors from directly observed movements, providing important insights, but tracking data is absent for many populations. 2. We developed a novel statistical corridor modeling...
Know what you don't know: Embracing state uncertainty in disease-structured multistate models
Matthijs Hollanders, J. Andrew Royle
2022, Methods in Ecology and Evolution (13) 2827-2837
Hidden Markov models (HMMs) are broadly applicable hierarchical models that derive their utility from separating state processes from observation processes yielding the data. Multistate models such as mark–recapture and dynamic multistate occupancy models are HMMs frequently used in ecology. In their early formulations, states, such as pathogen infection status,...
On the use of high-resolution and deep-learning seismic catalogs for short-term earthquake forecasts: Potential benefits and current limitations
Simone Mancini, Margarita Segou, Maximillan J. Werner, Thomas E. Parsons, Gregory C. Beroza, Lauro Chiaraluce
2022, Journal of Geophysical Research--Solid Earth (127)
Enhanced earthquake catalogs provide detailed images of evolving seismic sequences. Currently, these data sets take some time to be released but will soon become available in real time. Here, we explore whether and how enhanced seismic catalogs feeding into established short-term earthquake forecasting protocols may result in...
Observed and forecasted changes in land use by polar bears in the Beaufort and Chukchi Seas, 1985–2040
Karyn D. Rode, David C. Douglas, Todd C. Atwood, George M. Durner, Ryan R. Wilson, Anthony M. Pagano
2022, Global Ecology and Conservation (40)
Monitoring changes in the distribution of large carnivores is important for managing human safety and supporting conservation. Throughout much of their range, polar bears (Ursus maritimus) are increasingly using terrestrial habitats in response to Arctic sea ice decline. Their increased presence in...
Modeling geomagnetic induction in submarine cables
Shibaji Chakraborty, David H. Boteler, Xueling Shi, Benjamin Scott Murphy, Michael D. Hartinger, Xuan Wang, Greg M. Lucas, Joseph B. H. Baker
2022, Frontiers in Physics (10)
Submarine cables have become a vital component of modern infrastructure, but past submarine cable natural hazard studies have mostly focused on potential cable damage from landslides and tsunamis. A handful of studies examine the possibility of space weather effects in submarine cables. The main purpose of this study...
Evolutionary ecology of fire
Jon Keeley, Juli G. Pausas
2022, Annual Review of Ecology, Evolution, and Systematics (53) 203-225
Fire has been an ecosystem process since plants colonized land over 400 million years ago. Many diverse traits provide a fitness benefit following fires, and these adaptive traits vary with the fire regime. Some of these traits enhance fire survival, while others promote recruitment in the postfire...
Bedrock geologic map of the Crown Point quadrangle, Essex County, New York, and Addison County, Vermont
Gregory J. Walsh, Randall C. Orndorff, Ryan J. McAleer
2022, Scientific Investigations Map 3491
The bedrock geology of the 7.5-minute Crown Point quadrangle consists of deformed and metamorphosed Mesoproterozoic gneisses of the Adirondack Highlands unconformably overlain by weakly deformed lower Paleozoic sedimentary rocks of the Champlain Valley. The Mesoproterozoic rocks occur on the eastern edge of the Adirondack Highlands and represent an extension of...
Nutrient limitation of phytoplankton in three tributaries of Chesapeake Bay: Detecting responses following nutrient reductions
Qian Zhang, Thomas R. Fisher, Claire Buchanan, Anne B. Gustafson, Renee Karrh, Rebecca R. Murphy, Jeremy M. Testa, Richard Tian, Peter J. Tango
2022, Water Research (226)
Many coastal ecosystems suffer from eutrophication, algal blooms, and dead zones due to excessive anthropogenic inputs of nitrogen (N) and phosphorus (P). This has led to regional restoration efforts that focus on managing watershed loads of N and P. In Chesapeake Bay, the largest estuary in the United States, dual...
Spatial models of jaguar energy expenditure in response to border wall construction and remediation
Samuel Norton Chambers, Miguel L. Villarreal, Laura M. Norman, Juan Carlos Bravo, Myles B. Traphagen
2022, Frontiers in Conservation Science (3)
The construction of a wall at the United States-Mexico border is known to impede and deter movement of terrestrial wildlife between the two countries. One such species is the jaguar, in its northernmost range in the borderlands of Arizona and Sonora. We developed an anisotropic cost distance model for...
Probing the upper end of intracontinental earthquake magnitude: A prehistoric example from the Dzhungarian and Lepsy faults of Kazakhstan
Chia-Hsin Tsai, Kanatbek Abdrakhmatov, Aidyn Mukambayev, Austin John Elliott, John R. Elliott, Christoph Grutzner, Edward J. Rhodes, A. H. Ivester, R. T. Walker, Roberta Wilkinson
2022, Tectonics (41)
The study of surface ruptures is key to understanding the earthquake occurrence of faults especially in the absence of historical events. We present a detailed analysis of geomorphic displacements along the Dzhungarian Fault, which straddles the border of China and Kazakhstan. We use digital elevation models derived from structure-from-motion analysis...
