Geophysical extent of the Wyoming Province, western USA: Insights into ancient subduction and craton stability
Paul A. Bedrosian, Carol D. Frost
2022, Geological Society of America Bulletin (135) 725-742
A new 3-D resistivity model, estimated from inversion of magnetotelluric data, images crustal and upper-mantle structure of the Wyoming Province and adjacent areas. The Archean province is imaged as a coherent resistive domain, in sharp contrast to active tectonic domains of the western U.S. Prominent high-conductivity belts...
Sediment thickness and ground motion site amplification along the United States Atlantic and Gulf Coastal Plains
Oliver S. Boyd, David Henry Churchwell, Morgan P. Moschetti, Eric M. Thompson, Thomas L. Pratt, Martin C. Chapman, Sanaz Rezaeian
2022, Conference Paper, Proceedings of the 12th National Conference on Earthquake Engineering
Past and present research on earthquake ground motions along the Atlantic and Gulf Coastal Plains and Mississippi Embayment show significant period-dependent site response that is not presently accounted for in ground motion models. These deviations are strongly correlated with the thickness of Mesozoic and younger syn- and post-rift sediments. With...
Standard operating protocol for mark and recapture monitoring of Brook Floater in streams
Sean Sterrett, Allison H. Roy, Peter Hazelton, Beth Swartz, Ethan Nedeau, Jason Carmignani, Ayla Skorupa
2022, Cooperator Science Series CSS-142-2022
The Brook Floater (Alasmidonta varicosa) is a small (<100 mm) freshwater mussel (Family: Unionidae) found in streams of the eastern United States (U.S.) (Nedeau 2008). While there has been limited effort to document the status of Brook Floater across its range, there is evidence of Brook Floater range contraction and...
Modelagem de qualidade da agua: Aplicação do SPARROW
Flavio Hadler Troger, Sergio Rodrigues Ayrimoraes Soares, Diana Leite Cavalcanti, Marcelo Luiz de Souza, Daniel Edmund Restivo, Olivia L. Miller
2022, Report
No abstract available....
Medium-fidelity CFD modeling of multicopter wakes for airborne sensor measurements
Jonathan Chiew, Michael Aftosmis, Kristen L. Manies
2022, Conference Paper, Proceedings of the 78th annual vertical flight society forum and technology display
No abstract available....
Continental shelves as detrital mixers: U-Pb and Lu-Hf detrital zircon provenance of the Pleistocene–Holocene Bering Sea and its margins
Matthew A. Malkowski, Samuel Johnstone, Glenn R. Sharman, Colin J. White, Daniel S. Scheirer, Ginger Barth
2022, The Depositional Record (8) 1008-1030
Continental shelves serve as critical transfer zones in sediment-routing systems, linking the terrestrial erosional and deep-water depositional domains. The degree to which clastic sediment is mixed and homogenized during transfer across broad shelves has important implications for understanding deep-sea detrital records. Wide continental shelves are thought to act as capacitors...
Over a third of groundwater in USA public-supply aquifers is Anthropocene-age and susceptible to surface contamination
Bryant C. Jurgens, Kirsten E. Faulkner, Peter B. McMahon, Andrew G. Hunt, Gerolamo C. Casile, Megan B. Young, Kenneth Belitz
2022, Nature Communications Earth & Environment (2)
The distribution of groundwater age is useful for evaluating the susceptibility and sustainability of groundwater resources. Here, we compute the aquifer-scale cumulative distribution function to characterize the age distribution for 21 Principal Aquifers that account for ~80% of public-supply pumping in the United States. The aquifer-scale...
What’s It worth? Estimating the potential value of early warnings of cyanobacterial harmful algal blooms for managing freshwater reservoirs in Kansas, United States
Emily Pindilli, Keith A. Loftin
2022, Frontiers in Enviornmental Science (10)
Cyanobacterial blooms are an issue drawing increasing concern in freshwater lakes and reservoirs in the United States due to the real and sometimes perceived harms they can cause through cyanotoxin production or other effects. These types of blooms are often referred to as cyanobacterial harmful algal blooms (cyanoHABs)....
Elevated nitrogen deposition to fire-prone forests adjacent to urban and agricultural areas, Colorado front range, USA
Ruth C. Heindel, Sheila F. Murphy, Deborah A. Repert, Gregory A. Wetherbee, Alexander Liethen, David W. Clow, Toby A. Halamka
2022, Earth’s Future (10)
As humans increasingly dominate the nitrogen cycle, deposition of reactive nitrogen (Nr) will continue to have adverse consequences for ecosystems. In the Rocky Mountains, Nr deposition remains elevated and has become increasingly dominated by ammonium, despite efforts to reduce emissions. Currently, spatial models of Nr deposition do...
Hydrogeology and simulation of groundwater flow in the Lucerne Valley groundwater basin, California
Christina Stamos-Pfeiffer, Joshua Larsen, Robert E. Powell, Jonathan C. Matti, Peter Martin
2022, Scientific Investigations Report 2022-5048
The Lucerne Valley is in the southwestern part of the Mojave Desert and is about 75 miles northeast of Los Angeles, California. The Lucerne Valley groundwater basin encompasses about 230 square miles and is separated from the Upper Mojave Valley groundwater basin by splays of the Helendale Fault. Since its...
Potential effects of sea level rise on nearshore habitat availability for surf smelt (Hypomesus pretiosus) and eelgrass (Zostera marina), Puget Sound, Washington
Collin D. Smith, Theresa L. Liedtke
2022, Open-File Report 2022-1054
In this study we examine the potential effects of three predicted sea level rise (SLR) scenarios on the nearshore eelgrass (Zostera marina L.) and surf smelt (Hypomesus pretiosus) spawning habitats along a beach on Bainbridge Island, Washington. Baseline bathymetric, geomorphological, and biological surveys were conducted to determine the existing...
Medium spatial resolution mapping of global land cover and land cover change across multiple decades from Landsat
Mark A. Friedl, Curtis E. Woodcock, Pontus Olofsson, Zhe Zhu, Thomas R. Loveland, Radost Stanimirova, Paulo Arevalo, Eric L. Bullock, Kai-Ting Hu, Yingtong Zhang, Konrad Turlej, Katelyn Tarrio, McAvoy Kristina, Noel Gorelick, Jonathan A. Wang, Christopher P. Barber, Carlos Souza Jr.
2022, Frontiers in Remote Sensing (3)
Land cover maps are essential for characterizing the biophysical properties of the Earth’s land areas. Because land cover information synthesizes a rich array of information related to both the ecological condition of land areas and their exploitation by humans, they are widely used for basic and applied research that requires...
The role of organic matter diversity on the Re-Os systematics of organic-rich sedimentary units: Insights into the controls of isochron age determinations from the lacustrine Green River Formation
Jeffrey T Pietras, Abby Dennett, David Selby, Justin E. Birdwell
2022, Chemical Geology (604)
The range of 187Re/188Os values measured from samples of five organic-rich lacustrine mudstones units in the Eocene Green River Formation in the...
Evaluating the efficacy of aerial infrared surveys to detect artificial polar bear dens
Susannah P. Woodruff, Justin J Blank, Sheyna S Wisdom, Ryan H. Wilson, George M. Durner, Todd C. Atwood, Craig J Perham, Christina HM Pohl
2022, Wildlife Society Bulletin (46)
The need to balance economic development with impacts to Arctic wildlife has been a prominent subject since petroleum exploration began on the North Slope of Alaska, USA, in the late 1950s. The North Slope region includes polar bears (Ursus maritimus) of the southern Beaufort Sea subpopulation,...
Potential for critical mineral deposits in Maine, USA
John F. Slack, F.M. Beck, D.C. Bradley, M. M. Felch, Robert G. Marvinney, A.T.H. Whittaker
2022, Atlantic Geoscience (58) 155-191
An analysis of the potential for deposits of critical minerals and elements in Maine presented here includes data and discussions for antimony, beryllium, cesium, chromium, cobalt, graphite, lithium, manganese, niobium, platinum group elements, rhenium, rare earth elements, tin, tantalum, tellurium, titanium, uranium, vanadium, tungsten, and zirconium. Deposits are divided into...
A numerical study of geomorphic and oceanographic controls on wave-driven runup on fringing reefs with shore-normal channels
Curt D. Storlazzi, Annouk Rey, Ap van Dongeren
2022, Journal of Marine Science and Engineering (10)
Many populated, tropical coastlines fronted by fringing coral reefs are exposed to wave-driven marine flooding that is exacerbated by sea-level rise. Most fringing coral reef are not alongshore uniform, but bisected by shore-normal channels; however, little is known about the influence of such channels on alongshore variations on runup and...
21st-century stagnation in unvegetated sand-sea activity
Andrew Gunn, Amy E. East, Douglas J. Jerolmack
2022, Nature Communications (13)
Sand seas are vast expanses of Earth’s surface containing large areas of aeolian dunes—topographic patterns manifest from above-threshold winds and a supply of loose sand. Predictions of the role of future climate change for sand-sea activity are sparse and contradictory. Here we examine the impact of...
Possible effects of multiphase methane evolution during a glacial cycle on underpressure development in sedimentary basins: An analysis with application to the northeast Michigan Basin
Michelle R. Plampin, Alden M. Provost
2022, Journal of Geophysical Research - Solid Earth (127)
In low-permeability systems, groundwater may be accompanied by separate-phase fluids, and measured pore water pressures may deviate from those expected in steady-state, single-phase systems. These same systems may be of interest for storage of nuclear waste in Deep Geologic Repositories. Therefore, it is important to understand the...
Species distributions and the recognition of risk in restoration planning: A case study of salmonid fishes
Eric J. Walther, Mara S. Zimmerman, Jeffrey A. Falke, Peter A. H. Westley
2022, Ecological Applications (32)
One of the risks faced by habitat restoration practitioners is whether habitats included in restoration planning will be used by the target species or, conversely, whether habitats excluded from restoration planning would have benefited the target species. With the goal of providing a quantitative decision-making approach that represented varying levels...
Hybridization decreases native cutthroat trout reproductive fitness
William C. Rosenthal, John M. Fennell, Elizabeth G. Mandeville, Jason C. Burckhardt, Annika W. Walters, Catherine E. Wagner
2022, Molecular Ecology (31) 4224-4241
Examining natural selection in wild populations is challenging, but crucial to understanding many ecological and evolutionary processes. Additionally, in hybridizing populations, natural selection may be an important determinant of the eventual outcome of hybridization. We characterized several components of relative fitness in hybridizing populations of Yellowstone cutthroat trout and rainbow...
Modeling impacts of drought-induced salinity intrusion on carbon dynamics in tidal freshwater forested wetlands
Hongqing Wang, Zhaohua Dai, Carl C. Trettin, Ken Krauss, Gregory E. Noe, Andrew J. Burton, Camille Stagg, Eric Ward
2022, Ecological Applications (32)
Tidal freshwater forested wetlands (TFFW) provide critical ecosystem services including essential habitat for a variety of wildlife species and significant carbon sinks for atmospheric carbon dioxide. However, large uncertainties remain concerning the impacts of climate change on the magnitude and variability of carbon fluxes and storage...
Na+/HCO3- cotransporter 1 (nbce1) isoform gene expression during smoltification and seawater acclimation of Atlantic salmon
Jason P. Breves, Ian S. McKay, Victor Koltenyuk, Nastasia N. Nelson, Sean C. Lema, Stephen D. McCormick
2022, Journal of Comparative Physiology B: Biochemical, Systemic, and Environmental Physiology (192) 577-592
The life history of Atlantic salmon (Salmo salar) includes an initial freshwater phase (parr) that precedes a springtime migration to marine environments as smolts. The development of osmoregulatory systems that will ultimately support the survival of juveniles upon entry into marine habitats is a key aspect of smoltification. While the...
Characteristics, relationships and precision of direct acoustic-to-seismic coupling measurements from local explosions
Robert Anthony, Josh Watzak, Adam T. Ringler, David C. Wilson
2022, Geophysical Journal International (230) 2019-2035
Acoustic energy originating from explosions, sonic booms, bolides and thunderclaps have been recorded on seismometers since the 1950s. Direct pressure loading from the passing acoustic wave has been modelled and consistently observed to produce ground deformations of the near surface that have retrograde elliptical particle motions. In the past decade,...
Effects of flow regulation and drought on geomorphology and floodplain habitat along the Colorado River in Canyonlands National Park, Utah
Paul E. Grams, Eric Head, Erich R. Mueller
2022, River Research and Applications (38) 1266-1276
Streamflow regulation compounded by regional drought has resulted in up to 22% reduction in channel width, changes in channel planform, expansion of riparian vegetation, and alterations to floodplain habitat on the Colorado River in Meander Canyon, Utah. Although some changes in channel width occurred between the 1940s and 1980s, coinciding...
Speciation with gene flow in a narrow endemic West Virginia cave salamander (Gyrinophilus subterraneus)
Evan H. Campbell Grant, Kevin P. Mulder, Adrianne B. Brand, Douglas B. Chambers, Addison H. Wynn, Grace Capshaw, Matthew L. Niemiller, John G. Phillips, Jeremy F. Jacobs, Shawn R. Kuchta, Rayna C. Bell
2022, Conservation Genetics (23) 727-744
Due to their limited geographic distributions and specialized ecologies, cave species are often highly endemic and can be especially vulnerable to habitat degradation within and surrounding the cave systems they inhabit. We investigated the evolutionary history of the West Virginia Spring Salamander (Gyrinophilus subterraneus), estimated the population trend from historic...
