Pediment formation and subsequent erosion in Gale crater: Clues to the climate history of Mars
A.B. Bryk, W.E. Dietrich, Kristen A. Bennett, V.K. Fox, C.M. Fedo, M.P. Lamb, E.S. Kite, L.M. Thompson, S.G. Banham, J. Schieber, J.A. Grant, A.R. Vasavada, A.A. Fraeman, Lauren A. Edgar, P. J. Gasda, R.C. Wiens, J.P. Grotzinger, K. Stack-Morgan, R.E. Arvidson, O. Gasnault, S. Le Mouelic, S. Gupta, R.M.E. Williams, R.Y. Sheppard, K.W. Lewis, D.M. Rubin, W. Rapin, M.N. Hughes, M. Turner, S.A. Wilson, J.M. Davis, R.E. Kronyak, L. Le Deit, L.C. Kah, J. Frydenvang, R.J. Sullivan, C.C. Bedford, E. Dehouck, H.E. Newsom, M.C. Malin
2025, Icarus (430)
Evidence of paleo-rivers, fans, deltas, lakes, and channel networks across Mars has prompted much debate about what climate conditions would permit the formation of these surface water derived features. Pediments, gently sloping erosional surfaces of low relief developed in bedrock, have also been identified on Mars. On Earth, these erosional...
Assessing the effect of coral reef restoration location on coastal flood hazard along the San Juan Coastline, Puerto Rico
Ramin Familkhalili, Curt Storlazzi, Michael Nemeth, Shay Viehman
2025, Frontiers in Marine Science (12)
Coastal resilience has become a pressing global issue due to the growing vulnerability of coastlines to the effects of climate change. Nature-based solutions have emerged as a promising approach to coastal protection to not only enhance coastal resilience, but also restore critical ecosystems. Coral reef restoration has the potential to...
Temporal and spatial comparison of coal mine ventilation methane emissions and mitigation quantified using PRISMA satellite data and on-site measurements
C. Özgen Karacan, Itziar Irakulis-Loitxate, Robert A. Field, Peter D. Warwick
2025, Science of the Total Environment (975)
Emission monitoring at the facility level (bottom-up, BU) is key for accurate reporting of coal mine methane (CMM) emissions. Recent advances in aerial and satellite observations (top-down, TD) indicate that these methods have the potential to support CMM emissions monitoring and reporting of, as well as track the effectiveness of,...
Identifying recruitment sources across trophic levels in a large river food web
Shaley A. Valentine, Kristen L. Bouska, Gregory W. Whitledge
2025, Ecology and Evolution (15)
Assemblages are connected through the movement of physical and biological resources including recruits. Identifying recruitment sources for predators and their prey could help us understand how assemblages use connectivity across multiple trophic levels and whether predator and prey recruitment is coupled. Recruitment sources of organisms across multiple trophic levels can...
Pathways for potential exposure to onshore oil and gas wastewater: What we need to know to protect human health
Ayusha Ariana, Isabelle M. Cozzarelli, Cloelle Danforth, Bonnie McDevitt, Anna Rosofsky, Donna Vorhees
2025, Environmental Health Perspectives (9)
Produced water is a chemically complex waste stream generated during oil and gas development. Roughly four trillion liters were generated onshore in the United States in 2021 (ALL Consulting, 2022, https://www.gwpc.org/wp-content/uploads/2021/09/2021_Produced_Water_Volumes.pdf). Efforts are underway to expand historic uses of produced water to offset freshwater needs in water-stressed regions,...
Scent detection dogs detect a species of hard tick, Dermacentor albipictus, with comparable accuracy and efficiency to traditional tick drag surveys
Troy Koser, Aimee Hurt, Laura Thompson, Alyson Courtemanch, Benjamin Wise, Paul C. Cross
2025, Parasites and Vectors (18)
BackgroundAccurate surveillance data are critical for addressing tick and tick-borne pathogen risk to human and animal health. Current surveillance methods for detecting invading or expanding tick species are limited in their ability to scale efficiently to state or national levels. In this study we explored the potential use...
High-precision U-Pb data and reference age for Emerald Lake apatite
Francisco Apen, Sean Patrick Gaynor, Blair Schoene
2025, Data in Brief (60)
New isotope dilution thermal ionization mass spectrometry U-Pb data for Emerald Lake apatite demonstrate its potential as a reference material for geochronology. A three-dimensional 238U/206Pb-207Pb/206Pb-204Pb/206Pb isochron produces a 95.2 ± 1.1 Ma date with an initial Pb isotopic composition of 206Pb/204Pb = 18.85 ± 0.19 and 207Pb/204Pb = 15.68 ± 0.10 (n =...
U.S. Geological Survey global seabed mineral resources
U.S. Geological Survey
2025, Fact Sheet 2025-3017
The U.S. Geological Survey (USGS) provides science and data on seabed mineral resources and ecosystems, as well as on the potential hazards associated with extraction. The Nation relies on minerals for infrastructure, technology, manufacturing, and energy production. Critical minerals are essential to the economic and national security of the United...
Spatiotemporal patterns in urban nutrient and suspended sediment loads and stream response to watershed management implementation
Aaron J. Porter
2025, Environmental Monitoring and Assessment (197)
In recent years, local governments have invested heavily in management practices to reduce nutrient and sediment loads. These practices provide localities with nutrient and sediment regulatory reduction credits; however, their effects on water quality are poorly understood at the watershed scale. Long-term watershed-scale monitoring is essential for assessing progress toward...
Management strategy evaluation to assess trade-offs associated with invasive Blue Catfish fisheries and predation impacts
Corbin David Hilling, Yan Jiao, Joseph Schmitt, Mary C. Fabrizio, Paul L. Angermeier, Donald J. Orth
2025, Marine and Coastal Fisheries: Dynamics, Management and Ecosystem Science (17)
ObjectiveMany species are intentionally introduced beyond their native range to provide benefits to humans (e.g., food, recreation, or biocontrol). However, introduced species can become invasive and can harm native species, prompting resource managers to explore options to simultaneously conserve native biota and enhance fishing opportunities. Management...
Effects of climate change on midwestern ecosystems: Temperate flooded and swamp forest
Hugh Ratcliffe, Katherine Charton, Marta P. Lyons, Olivia E. LeDee
2025, Report
No abstract available....
Strike-slip faulting and counterclockwise rotations along the southwest portion of the Lake Mead fault system, Boulder City–Hoover Dam Area, Nevada
L. Sue Beard, Zachary Anderson, Tracey J. Felger
2025, Conference Paper, Desert archeology and extensional tectonics: 2025 Desert Symposium field guide and proceedings
No abstract available....
Uncertainty reduction for subaerial landslide-tsunami hazards
Katherine R. Barnhart, David L. George, Andrew L. Collins, Lauren N. Schaefer, Dennis M. Staley
2025, Journal of Geophysical Research: Earth Surface (130)
Subaerial rock slopes may generate a tsunami by rapidly moving into the water. Large uncertainty in landslide characteristics propagates into large uncertainty in tsunami hazard, making hazard assessment more difficult for land and emergency managers. Once a potentially tsunamigenic landslide is identified, it may not be clear which landslide characteristics...
Evaluating the applicability of the generalized power-law rating curve model: With applications to paired discharge-stage data from Iceland, Sweden, and the United States
Rafael Daniel Vias, Birgir Hrafnkelsson, Timothy O. Hodson, Sölvi Rögnvaldsson, Axel Örn Jansson, Sigurdur M. Gardarsson
2025, Journal of Hydrology (651)
Hydrologic research and operations make extensive use of streamflow time series. In most applications, these time series are estimated from rating curves, which relate flow to some easy-to-measure surrogate, typically stage. The conventional stage-discharge rating takes the form of a segmented power law, with one segment for each hydrologic control...
Monitoring lava lake fluctuations and crater refilling with continuous laser rangefinders
Edward F. Younger, William Tollett, Matthew R. Patrick
2025, Journal of Applied Volcanology (14)
The U.S. Geological Survey’s Hawaiian Volcano Observatory (HVO) has developed a new method to continuously monitor lava lake elevations. Since 2018, HVO has stationed a laser rangefinder on Kīlauea’s caldera rim. The instrument automatically measures lava lake elevation each second, with centimeter accuracy. A stream of elevation data flows to...
Patterns of water-extractable soil organic matter in the US Great Plains: Insights from the Haas Soil Archive
Jonathan J. Halvorson, Angela Hansen, Catherine E. Stewart, Mark A. Liebig
2025, Agrosystems, Geosciences & Environment (8)
Novel approaches that are fast and sensitive are needed to evaluate soil change and integrate soil ecosystem properties. Carbon (C) and nitrogen (N) extracted from soil with water are associated with plant nutrients and microbial activity but information about change over time in the US Great Plains is sparse. We...
Assessment of western Oregon debris-flow hazards in burned and unburned environments
Brittany Danielle Selander, Nancy C. Calhoun, William Burns, Jason W. Kean, Francis K. Rengers
2025, Earth Surface Processes and Landforms (50)
In the steep and mountainous environment of western Oregon, debris flows pose a considerable threat to property, infrastructure and life. Wildfire is commonly known to increase the susceptibility of steep slopes to debris flows, but the extent of this process in the western Cascades is not well understood. The US...
Understanding predator-prey-competitor dynamics between Lower Missouri River Macrhybopsis and Scaphirhynchus using a population—bioenergetics model ensemble
Mark L. Wildhaber, Janice L. Albers, Nicholas S. Green
2025, Ecological Modeling (504)
The pallid sturgeon Scaphirhynchus albus is a long-lived, endangered fish in the Missouri River. Individuals become piscivorous as adults, so recruitment from stocking or reproduction could reduce populations of prey, including Macrhybopsis chubs. We constructed an individual- and age-based, multi-species, predator-prey-competitor model (IAMP) to represent the benthic community (sturgeons, chubs, and chironomids) of the...
A generalized framework for inferring river bathymetry from image-derived velocity fields
Carl J. Legleiter, Paul J. Kinzel
2025, Geomorphology (479)
Although established techniques for remote sensing of river bathymetry perform poorly in turbid water, image velocimetry can be effective under these conditions. This study describes a framework for mapping both of these attributes: Depths Inferred from Velocities Estimated by Remote Sensing, or DIVERS. The workflow involves linking image-derived velocities to...
A low-cost approach to monitoring streamflow dynamics in small, headwater streams using timelapse imagery and a deep learning model
Phillip J. Goodling, Jennifer Burlingame Hoyle Fair, Amrita Gupta, Jeffrey D Walker, Todd Dubreuil, Michael J Hayden, Benjamin Letcher
2025, Preprint
Despite their ubiquity and importance as freshwater habitat, small headwater streams are under monitored by existing stream gage networks. To address this gap, we describe a low-cost, non-contact, and low-effort method that enables organizations to monitor streamflow dynamics in small headwater streams. The method uses a camera to capture repeat...
Multi-scale geophysical imaging of a hydrothermal system in Yellowstone National Park, USA
Sylvain Pasquet, W. Steven Holbrook, Bradley J. Carr, Neil C. Terry, Martin Briggs, Carol A. Finn, Paul A. Bedrosian, Esben Auken, Jesper Pedersen, Pradip Kumar Maurya, Kenneth Sims
2025, JGR Solid Earth (130)
Little is known about the local plumbing systems that fuel Yellowstone’s famous hot springs, geysers and mud pots. A multi-method, multi-scale geophysical investigation was carried out in the Obsidian Pool Thermal Area (OPTA) to: (i) delineate the lateral extent of the hydrothermal area and associated surface features; (ii) estimate the...
Sulfate reduction drives elevated methylmercury formation in water column of eutrophic freshwater lake
Benjamin D. Peterson, Sarah E. Janssen, Brett A. Poulin, Jacob M. Ogorek, Amber White, Elizabeth A. McDaniel, Robert A. Marick, Grace Jane Armstrong, Nicholas D. Scheel, Michael T. Tate, David P. Krabbenhoft, Katherine D. McMahon
2025, Environmental Science and Technology (59) 6799-6811
Mercury (Hg) contamination of aquatic food webs is controlled in part by the formation and accumulation of toxic and bioaccumulative methylmercury (MeHg). MeHg production is mediated by metabolically diverse microorganisms carrying the hgcAB gene pair, while the demethylation reaction is mediated by several biotic and abiotic processes. However, the relative importance...
A partnership between the USGS and the Klamath Tribes to apply structured decision making for chronic wasting disease management
Margaret C. McEachran, Katie M. Guntly-Yancey, Richard E.W. Berl, Donald Gentry, Michael C. Runge, Carl White, Jonathan D. Cook
2025, Fact Sheet 2025-3012
Project Overview: The Klamath Tribes (TKT) are the Klamath, Modoc, and Yahooskin Paiute peoples, and are the first peoples of the land, having lived in ancestral lands of Oregon and California since time immemorial. Members of TKT have rights to hunt, fish, trap, and gather, including the harvest of mule...
A trend analysis and model comparison of total phosphorus concentrations and loads in the Boise River near Parma, southwestern Idaho, water years 2003–21
Tyler V. King, Alysa M. Yoder
2025, Scientific Investigations Report 2024-5110
Total phosphorus (TP) concentrations and loads in the Boise River near Parma, Idaho, were examined to identify changes by month over a 19-year period from water year 2003 through water year 2021 and to evaluate the performance of three common water-quality models. Mean annual TP concentrations and loads were estimated...
System characterization report on Resourcesat-2A Linear Imaging Self Scanning-4 sensor
Mahesh Shrestha, Aparajithan Sampath, Minsu Kim, Seonkyung Park, Jeffrey Clauson
2025, Open-File Report 2021-1030-U
Executive Summary This report documents the system characterization of the Indian Space Research Organisation Resourcesat-2A Linear Imaging Self Scanning-4 (LISS–4) sensor. It is part of a series of system characterization reports produced by the U.S. Geological Survey Earth Resources Observation and Science Cal/Val Center of Excellence. These reports describe the methodology...
