Laboratory hydrofractures as analogs to tectonic tremors
Congcong Yuan, Thomas Cochard, Marine A. Denolle, Joan S. Gomberg, Aaron Wech, Xiao Lizhi, David Weitz
2024, AGU Advances (5)
The fracture of Earth materials occurs over a wide range of time and length scales. Physical conditions, particularly the stress field and Earth material properties, may condition rupture in a specific fracture regime. In nature, fast and slow fractures occur concurrently: tectonic tremor events are fast enough to emit seismic...
Assessment of undiscovered conventional oil and gas resources in presalt reservoirs of the West-Central Coastal Province of Africa, 2022
Christopher J. Schenk, Tracey J. Mercier, Cheryl A. Woodall, Phuong A. Le, Andrea D. Cicero, Ronald M. Drake II, Geoffrey S. Ellis, Thomas M. Finn, Michael H. Gardner, Sarah E. Gelman, Jane S. Hearon, Benjamin G. Johnson, Jenny H. Lagesse, Heidi M. Leathers-Miller, Kristen R. Marra, Kira K. Timm, Scott S. Young
2024, Fact Sheet 2023-3028
Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean conventional resources of 12.1 billion barrels of oil and 50 trillion cubic feet of gas in presalt reservoirs within the West-Central Coastal Province of Africa....
Hurricanes: An unexpected mechanism linking disturbance and seed production in trees
Ian Pearse, Andreas Paul Wion
2024, New Phytologist (242) 8-9
This technical commentary provides insights into a recent paper by a non-USGS group of authors who link hurricanes to mast seed production in long-leaf pine....
Resource-driven pattern formation in consumer-resource systems with asymmetric dispersal on a plane
Weiting Song, Shikun Wang, Yuanshi Wang, Don DeAngelis
2024, SIAM Journal on Applied Mathematics
This paper considers resource-driven pattern formation in consumer-resource systems. Here, a planar pattern consists of many big patches, and a big patch can be regarded as combination of many patches on the plane. The consumer moves between patches asymmetrically, while the asymmetry is driven by the resource abundance. Based on...
Ratingcurve: A Python package for fitting streamflow rating curves
Timothy O. Hodson, Keith James Doore, Terry A. Kenney, Thomas M. Over, Muluken Yeheyis
2024, Hydrology (11)
Streamflow is one of the most important variables in hydrology, but it is difficult to measure continuously. As a result, nearly all streamflow time series are estimated from rating curves that define a mathematical relationship between streamflow and some easy-to-measure proxy like water surface elevation (stage). Despite the existence...
Sedimentary processes and instability on the Mississippi River Delta Front near the shipwreck of the SS Virginia
Nathan Figueredo, Samuel J. Bentley, Jason Chaytor, Kehui Xu, Navid H. Jafari, Iaonnis Georgiou, Melanie D'amour, Jeffrey Duxbury, Jeffrey B. Obelcz, Jillian Maloney
2024, Water (16)
Sediment cores were collected from a mudflow lobe (80 m water depth) offshore of the Mississippi River’s Southwest Pass in 2017 to better understand the sedimentology near the lobe entraining the SS Virginia shipwreck (sunk by a German U-boat in 1942) and surrounding Mississippi River delta front. Core analyses...
Validation of a molecular sex marker in three sturgeons from eastern North America
Nicholas M Sard, Brian R Krieser, Richard M. Pendleton, Barbara A. Lubinski, Robin L. Johnson, Dewayne A. Fox, Joel P Van Eenennaam, Jason E Kahn, Chris H Hager, Amanda L. Higgs, David C. Kazyak
2024, Journal of Applied Ichthyology (16) 173-177
Despite the importance of sex-specific information for sturgeon conservation and management, sex identification has been a major challenge outside of mature adults on spawning grounds. Recent work identified a sex-specific locus (AllWSex2) that appears to be broadly conserved across many Acipenserids, but the assay was not...
Peak streamflow trends in Wisconsin and their relation to changes in climate, water years 1921–2020
Sara B. Levin
2024, Scientific Investigations Report 2023-5064-J
This study characterizes hydroclimatic variability and change in peak streamflow and daily streamflow in Wisconsin from water years 1921 through 2020. Nonstationarity in peak streamflow in Wisconsin can include monotonic trends, change points, and autocorrelation. Spatial patterns of nonstationarity in peak streamflow, daily streamflow, and monthly precipitation, temperature, and snowfall...
Peak streamflow trends and their relation to changes in climate in Illinois, Iowa, Michigan, Minnesota, Missouri, Montana, North Dakota, South Dakota, and Wisconsin
2024, Scientific Investigations Report 2023-5064
Flood-frequency analysis, also called peak-flow frequency or flood-flow frequency analysis, is essential to water resources management applications including critical structure design and floodplain mapping. Federal guidelines for doing flood-frequency analyses are presented in a U.S. Geological Survey Techniques and Methods report known as Bulletin 17C. A basic assumption within Bulletin...
Introduction and methods of analysis for peak streamflow trends and their relation to changes in climate in Illinois, Iowa, Michigan, Minnesota, Missouri, Montana, North Dakota, South Dakota, and Wisconsin
Karen R. Ryberg, Thomas M. Over, Sara B. Levin, David C. Heimann, Nancy A. Barth, Mackenzie K. Marti, Padraic S. O’Shea, Chris Sanocki, Tara Williams-Sether, Harper N. Wavra, T. Roy Sando, Steven K. Sando, Milan S. Liu
2024, Scientific Investigations Report 2023-5064-A
Flood-frequency analysis, also called peak-flow frequency or flood-flow frequency analysis, is essential to water resources management applications including critical structure design and floodplain mapping. Federal guidelines for doing flood-frequency analyses are presented in a U.S. Geological Survey Techniques and Methods Report known as Bulletin 17C. A basic assumption within Bulletin...
Nutrient and carbonate chemistry patterns associated with Karenia brevis blooms in three West Florida Shelf estuaries 2020-2023
Emily R. Hall, Kimberly Yates, Katherine A. Hubbard, Matt Garrett, Jessica Frankle
2024, Frontiers in Marine Science (11)
Ocean acidification (OA) driven by eutrophication, riverine discharge, and other threats from local population growth that affect the inorganic carbonate system is already affecting the eastern Gulf of Mexico. Long-term declines in pH of ~ -0.001 pH units yr-1 have been observed in many southwest Florida estuaries over the past few...
Sources of bias in applying close-kin mark–recapture to terrestrial game species with different life histories
Anthony Seveque, Robert Charles Lonsinger, Lisette P Waits, Kristin E. Brzeski, Lisa M Komoroske, Caitlin N. Ott-Conn, Sarah L. Mayhew, D. Cody Norton, Tyler R. Petroelje, John D. Swenson, Dana J. Morin
2024, Ecology (105)
Close-kin mark–recapture (CKMR) is a method analogous to traditional mark–recapture but without requiring recapture of individuals. Instead, multilocus genotypes (genetic marks) are used to identify related individuals in one or more sampling occasions, which enables the opportunistic use of samples from harvested wildlife. To apply the method accurately, it is...
U.S. Geological Survey Grand Canyon Monitoring and Research Center: Proceedings of the fiscal year 2023 annual reporting meeting to the Glen Canyon Dam Adaptive Management Program
Andrew Alan Schultz, Gregory Mark Anderson, David J. Topping, Ronald E. Griffiths, David J. Dean, Paul E. Grams, Keith Kohl, Gerard Lewis Salter, Matthew A. Kaplinski, Katherine Chapman, Erich R. Mueller, Emily C. Palmquist, Bradley J. Butterfield, Joel B. Sankey, Bridget Deemer, Charles Yackulic, Lindsay Erika Hansen, Drew Elliot Eppehimer, Theodore Kennedy, Anya Metcalfe, Jeffrey Muehlbauer, Morgan Ford, Michael Dodrill, Maria C. Dzul, Pilar Rinker, Michael J. Pillow, David Ward, Josh Korman, Molly A.H. Webb, James A. Crossman, Eric J Frye, David L. Rogowski, Kimberley Dibble, Lucas Bair, Joshua Abbott, Thomas M. Gushue, Erica Paige Byerley, Joseph E Thomas, Thomas A. Sabol, Bryce Anthony Mihalevich
Meredith A. Hartwell, Andrew Alan Schultz, Gregory Mark Anderson, editor(s)
2024, Conference Paper
This proceedings is prepared for the USBR and Glen Canyon Dam Adaptive Management Program (GCDAMP) to account for work conducted and products delivered in FY 2023 by SBSC's Grand Canyon Monitoring and Research Center (GCMRC) and to inform the Technical Work Group of science conducted by GCMRC and its cooperators...
Lead isotopes in New England (USA) volcanogenic massive sulphide deposits: Implications for metal sources and pre-accretionary tectonostratigraphic terranes
John F. Slack, Scott Swinden, Stephen Piercey, Robert A. Ayuso, Cees Van Staal, Anne P. LeHuray
2024, Canadian Journal of Earth Sciences (61) 329-354
Lead isotope values for volcanogenic massive sulfide (VMS) deposits provide important insights into metal sources and the nature of pre-accretionary tectonostratigraphic terranes and underlying basements. Deposits of this type in New England formed in diverse tectonic settings including volcanic arcs and backarcs, a supra–subduction zone arc, a rifted forearc foreland...
Demography with drones: Detecting growth and survival of shrubs with unoccupied aerial systems
Peter J. Olsoy, Andrii Zaiats, Donna M. Delparte, Matthew J. Germino, Bryce Richardson, Anna V. Roser, Jennifer S. Forbey, Megan E Cattau, Trevor Caughlin
2024, Restoration Ecology (32)
Large-scale disturbances, such as megafires, motivate restoration at equally large extents. Measuring the survival and growth of individual plants plays a key role in current efforts to monitor restoration success. However, the scale of modern restoration (e.g., >10,000 ha) challenges measurements of demographic rates with...
Seasonal differences in larval sea lamprey (Petromyzon marinus) sensitivity to the pesticide TFM
Justin Schueller, Michael A. Boogaard, Courtney Kirkeeng, Nicholas Schloesser, Samantha L. Wolfe, Avery J. Lettenberger, Tisha King-Heiden, James A. Luoma
2024, Journal of Great Lakes Research (50)
Invasive sea lamprey (Petromyzon marinus) are controlled in the Great Lakes with 4-nitro-3-(trifluoromethyl) phenol (commonly 3-trifluoromethyl-4-nitrophenol or TFM). The proper concentration of TFM must be applied during treatments to effectively kill larval sea lamprey while minimizing impacts to non-target species. In this study, bioassay tests were conducted in May, July,...
The addition of 144Nd atomic mass to routine ICP-MS analysis as a Quick Screening Tool for Approximating Rare Earth Elements (Q-STAR) in natural waters
Elizabeth J. Tomaszewski, Zhouming Sun, Anthony J. Bednar
2024, Journal of Geochemical Exploration (258)
Rare earth elements (REEs) are a class of critical minerals, all of which can have supply chain vulnerability that impacts economic security. These elements are widely measured in environmental matrices via inductively coupled plasma mass spectrometry (ICP-MS); however, successful quantification can require time-consuming, sample-specific optimization. While a...
Male lake char release taurocholic acid as part of a mating pheromone
Tyler J. Buchinger, Ke Li, Ugo Bussy, Belinda Huerta, Sonam Tamrakar, Nicholas S. Johnson, Weiming Li
2024, Journal of Experimental Biology (227)
The evolutionary origins of sexual preferences for chemical signals remain poorly understood, due, in part, to scant information on the molecules involved. In the current study, we identified a male pheromone in lake char (Salvelinus namaycush) to evaluate the hypothesis that it exploits...
Seasonal differences in larval sea lamprey (Petromyzon marinus) sensitivity to the pesticide TFM
Justin Schueller, Michael A. Boogaard, Courtney Kirkeeng, Nicholas Schloesser, Samantha L. Wolfe, Avery J. Lettenberger, Tisha King-Heiden, James A. Luoma
2024, Journal of Great Lakes Research (50)
Invasive sea lamprey (Petromyzon marinus) are controlled in the Great Lakes with 4-nitro-3-(trifluoromethyl)phenol (commonly 3-trifluoromethyl-4-nitrophenol or TFM). The proper amount of TFM must be applied during treatments to effectively kill larval sea lamprey while minimizing impacts to non-target species. In this...
Seasonal and breeding phenologies of 38 grassland bird species in the midcontinent of North America
Garrett J. MacDonald, Michael J. Anteau, Kristen S. Ellis, Lawrence D. Igl, Neal D. Niemuth, Josh L. Vest
2024, Open-File Report 2024-1002
Grasslands in the midcontinent of North America are highly imperiled, and grassland birds have suffered the largest bird declines of any terrestrial biome in North America in the last 50 years. Consequently, the conservation and management of grasslands, as well as their associated avian communities, are major priorities for the...
Satellite Interferometry Landslide Detection and Preliminary Tsunamigenic Plausibility Assessment in Prince William Sound, Southcentral Alaska
Lauren N. Schaefer, Jinwook Kim, Dennis M. Staley, Zhong Lu, Katherine R. Barnhart
2024, Open-File Report 2023-1099
Regional mapping of actively deforming landslides, including measurements of landslide velocity, is integral for hazard assessments in paraglacial environments. These inventories are also critical for describing the potential impacts that the warming effects of climate change have on slope instability in mountainous and cryospheric terrain. The objective of this study...
Using resiliency, redundancy, and representation in a Bayesian belief network to assess imperilment of riverine fishes
Corey Garland Dunn, David A. Schumann, Michael E. Colvin, Logan John Sleezer, Matthew Wagner, D. Todd Jones-Farrand, Erin Rivenbark, Sarah McRae, Kristine Evans
2024, Ecosphere (15)
Conservation prioritization frameworks are used worldwide to identify species at greatest risk of extinction and to allocate limited resources across regions, species, and populations. Conservation prioritization can be impeded by ecological knowledge gaps and data deficiency, especially in freshwater species inhabiting highly complex aquatic ecosystems. Therefore, we developed a flexible...
Water-quality indicators of surface-water-influenced groundwater supplies in the Ohio River alluvial aquifer of West Virginia
Mitchell A. McAdoo, Gregory T. Connock
2024, Scientific Investigations Report 2023-5139
The U.S. Geological Survey, in cooperation with the West Virginia Department of Health and Human Resources, studied surface-water-influenced groundwater supplies in the Ohio River alluvial aquifer of West Virginia for the purpose of understanding the influence of surface water on groundwater chemistry. Public groundwater supplies obtained from these aquifers receive...
The U.S. Geological Survey Water Resources Research Act Program—Meeting local, State, and national needs for water resources science and training
Mark P. Miller, Earl A. Greene, Tanja N. Williamson
2024, Fact Sheet 2023-3031
IntroductionThe U.S. Geological Survey (USGS) has a broad research portfolio that addresses water resource issues that are critical to our Nation’s prosperity and quality of life. Socioeconomics, geopolitical stressors, population growth, climate variability, and other factors provide challenges for the management of water resources. Working collaboratively with partners, the USGS...
A framework to facilitate development and testing of image-based river velocimetry algorithms
Carl J. Legleiter, Paul J. Kinzel
2024, Earth Surface Processes and Landforms (49) 1361-1382
Image-based methods have compelling, demonstrated potential for characterizing flow fields in rivers, but algorithms like particle image velocimetry (PIV) must be further tested and improved to enable more effective use of these techniques. This paper presents a framework designed for this exact purpose: Simulating Hydraulics and Images for Velocimetry Evaluation...
