The Coastal Carbon Library and Atlas: Open source soil data and tools supporting blue carbon research and policy
James R. Holmquist, David H. Klinges, Michael Lonneman, Jaxine Wolfe, Brandon M. Boyd, Meagan J. Eagle, Jonathan Sanderman, Katherine Todd-Brown, Lauren N. Brown, E. Fay Belshe, Samantha K. Chapman, Ron Corstanje, Christopher N. Janousek, James T. Morris, Gregory E. Noe, Andre S. Rovai, Amanda C. Spivak, Megan Vahsen, Lisamarie Windham-Myers, Kevin D. Kroeger, Patrick Megonigal
2024, Global Change Biology (30)
Quantifying carbon fluxes into and out of coastal soils is critical to meeting greenhouse gas reduction and coastal resiliency goals. Numerous ‘blue carbon’ studies have generated, or benefitted from, synthetic datasets. However, the community those efforts inspired does not have a centralized, standardized database...
Conventional rare earth element mineral deposits: The global landscape
Nora K. Foley, Robert A. Ayuso
2024, Book chapter, Rare earth metals and minerals industries: Status and prospects
Four conventional mineral deposit types—carbonatite, alkaline igneous, heavy mineral sand, and regolith-hosted ion-adsorption clay deposits—currently supply global markets with the rare earth elements (REEs) and rare earth oxides (REOs) necessary to meet the technological needs of global communities. The unique properties of REEs make them useful in a wide variety...
Energy-related rare earth element sources
Allan Kolker, Liliana Lefticariu, Steven T. Anderson
2024, Book chapter, Rare earth metals and minerals industries: Status and prospects
Energy-related materials such as coal, coal-bearing wastes, and coal combustion products are traditionally thought of as sources or by-products of electric power generation. Increasingly, these materials are considered resources for their content of rare earth elements (REEs) and other useful constituents. In this chapter, we examine the distribution, modes of...
Hydrothermal monazite and xenotime chemistry as genetic discriminators for intrusion-related and orogenic gold deposits: Implications for an orogenic origin of the Pogo gold deposit, Alaska
Ryan D. Taylor, Garth E. Graham, Heather A. Lowers
2024, Mineralium Deposita (59) 949-967
Attempts to geochemically distinguish between metamorphic-hydrothermal systems that form orogenic gold deposits and both reduced and oxidized magmatic-hydrothermal systems using isotopes or metal associations have proven ambiguous, particularly for orogenic gold and reduced intrusion-related gold systems. The absence of conclusive geochemical discriminators and the overlap in...
The 2023 US 50-State National Seismic Hazard Model: Overview and implications
Mark D. Petersen, Allison Shumway, Peter M. Powers, Edward H. Field, Morgan P. Moschetti, Kishor S. Jaiswal, Kevin R. Milner, Sanaz Rezaeian, Arthur D. Frankel, Andrea L. Llenos, Andrew J. Michael, Jason M. Altekruse, Sean Kamran Ahdi, Kyle Withers, Charles Mueller, Yuehua Zeng, Robert E. Chase, Leah M. Salditch, Nico Luco, Kenneth S. Rukstales, Julie A. Herrick, Demi Leafar Girot, Brad T. Aagaard, Adrian Bender, Michael L. Blanpied, Richard W. Briggs, Oliver S. Boyd, Brandon Clayton, Christopher DuRoss, Eileen L. Evans, Peter J. Haeussler, Alexandra Elise Hatem, Kirstie Lafon Haynie, Elizabeth H. Hearn, Kaj M. Johnson, Zachary Alan Kortum, N. Simon Kwong, Andrew James Makdisi, Henry Mason, Daniel McNamara, Devin McPhillips, P. Okubo, Morgan T. Page, Frederick Pollitz, Justin Rubinstein, Bruce E. Shaw, Zheng-Kang Shen, Brian Shiro, James Andrew Smith, William J. Stephenson, Eric M. Thompson, Jessica Ann Thompson Jobe, Erin A. Wirth, Robert C. Witter
2024, Earthquake Spectra (40) 5-88
The US National Seismic Hazard Model (NSHM) was updated in 2023 for all 50 states using new science on seismicity, fault ruptures, ground motions, and probabilistic techniques to produce a standard of practice for public policy and other engineering applications (defined for return periods greater than ∼475...
Operational aspects of Landsat 8 and 9 geometry
Michael J. Choate, Rajagopalan Rengarajan, Nahid Hasan, Alex Denevan, Kathryn Ruslander
2024, Remote Sensing (16)
Landsat 9 (L9) was launched on 27 September 2021. This spacecraft contained two instruments, the Operational Land Imager-2 (OLI-2) and Thermal Infrared Sensor-2 (TIRS-2), that allow for a continuation of the Landsat program and the mission to acquire multi-spectral observations of the globe on a moderate scale. Following a period...
Modular compositional learning improves 1D hydrodynamic lake model performance by merging process-based modeling with deep learning
Robert Ladwig, Arka Daw, Elen A Albright, Cal Buelo, Anuj Karpatne, Michael Frederick Meyer, Abhilash Neog, Paul C. Hanson, Hilary A. Dugan
2024, Journal of Advances in Modeling Earth Systems (16)
Hybrid Knowledge-Guided Machine Learning (KGML) models, which are deep learning models that utilize scientific theory and process-based model simulations, have shown improved performance over their process-based counterparts for the simulation of water temperature and hydrodynamics. We highlight the modular compositional learning (MCL) methodology as a novel design...
Matching existing and future native plant materials to disturbance-driven restoration needs
Daniel E. Winkler, Sarah Sterner, John B. Bradford, Adrienne M. Pilmanis, Robert Massatti
2024, Restoration Ecology (32)
Assessing the appropriateness of existing native plant materials can both determine which seed source to utilize for restoration projects, and identify locations for which new seed sources need to be developed. Here, we demonstrate an approach to meet these needs. This method identifies areas...
The USGS 2023 Conterminous U.S. time‐independent earthquake rupture forecast
Edward H. Field, Kevin R. Milner, Alexandra Elise Hatem, Peter M. Powers, Frederick Pollitz, Andrea L. Llenos, Yuehua Zeng, Kaj M. Johnson, Bruce E. Shaw, Devin McPhillips, Jessica Ann Thompson Jobe, Allison Shumway, Andrew J. Michael, Zheng-Kang Shen, Eileen L. Evans, Elizabeth H. Hearn, Charles Mueller, Arthur D. Frankel, Mark D. Petersen, Christopher DuRoss, Richard W. Briggs, Morgan T. Page, Justin Rubinstein, Julie A. Herrick
2024, Bulletin of the Seismological Society of America (114) 523-571
We present the 2023 U.S. Geological Survey time‐independent earthquake rupture forecast for the conterminous United States, which gives authoritative estimates of the magnitude, location, and time‐averaged frequency of potentially damaging earthquakes throughout the region. In addition to updating virtually all model components, a...
A comprehensive fault system inversion approach: Methods and application to NSHM23
Kevin R. Milner, Edward H. Field
2024, Bulletin of the Seismological Society of America (114) 486-522
We present updated inversion‐based fault‐system solutions for the 2023 update to the National Seismic Hazard Model (NSHM23), standardizing earthquake rate model calculations on crustal faults across the western United States. We build upon the inversion methodology used in the Third Uniform California Earthquake...
Habitat and dissolved organic carbon modulate variation in the biogeochemical drivers of mercury bioaccumulation in dragonfly larvae at the national scale
Sarah J. Nelson, James Willacker, Collin A. Eagles-Smith, Colleen M Flanagan Pritz, Celia Y. Chen, Amanda J Klemmer, David P. Krabbenhoft
2024, Science of the Total Environment (912)
We paired mercury (Hg) concentrations in dragonfly larvae with water chemistry in 29 U.S. national parks to highlight how ecological and biogeochemical context (habitat, dissolved organic carbon [DOC]) influence drivers of Hg bioaccumulation. Although prior studies have defined influences of biogeochemical variables on Hg production and bioaccumulation, it has been...
Using an open-source tool to develop a three-dimensional hydrogeologic framework of the Kobo Valley, Ethiopia
Sisay Simachew Mekonen, Scott E. Boyce, Abdella K. Mohammed, Markus Disse
2024, Geosciences (14)
Groundwater resource management requires understanding the groundwater basin’s hydrogeology and would be improved with the development of a three-dimensional hydrogeologic framework model (HFM). A wide range of methods and software exist to quantify the extent, structure, and properties of geologic systems. However, most geologic software is proprietary and cost-prohibitive for...
Legacy sediment as a potential source of orthophosphate: Preliminary conceptual and geochemical models for the Susquehanna River, Chesapeake Bay watershed, USA
Charles A. Cravotta III, Travis L. Tasker, Peter M. Smyntek, Joel D. Blomquist, John W. Clune, Qian Zhang, Noah Schmadel, Natalie Katrina Schmer
2024, Science of the Total Environment (912)
Nutrient pollution from agriculture and urban areas plus acid mine drainage (AMD) from legacy coal mines are primary causes of water-quality impairment in the Susquehanna River, which is the predominant source of freshwater and nutrients entering the Chesapeake Bay. Recent increases in the delivery of dissolved orthophosphate (PO4)...
Rapid population decline in McKay's Bunting, an Alaskan endemic, highlights the species’ current status relative to international standards for vulnerable species
Rachel M. Richardson, Courtney L. Amundson, James A. Johnson, Marc D. Romano, Audrey R. Taylor, Michael D. Fleming, Steven M. Matsuoka
2024, Ornithological Applications (126)
The McKay’s Bunting (Plectrophenax hyperboreus) is endemic to Alaska, breeds solely on the remote and uninhabited St. Matthew and Hall islands (332 km2) in the central Bering Sea, and is designated as a species of high conservation concern due to its small population size and restricted range. A previous...
The 2022 Chaos Canyon landslide in Colorado: Insights revealed by seismic analysis, field investigations, and remote sensing
Kate E. Allstadt, Jeffrey A. Coe, Elaine Collins, Francis K. Rengers, Anne Mangeney, Scott M. Esser, Jana Pursley, William L. Yeck, John Bellini, Lance R. Brady
2024, Landslides (21) 309-325
An unusual, high-alpine, rapid debris slide originating in ice-rich debris occurred on June 28, 2022, at 16:33:16 MDT at the head of Chaos Canyon, a formerly glacier-covered valley in Rocky Mountain National Park, CO, USA. In this study, we integrate eyewitness videos and seismic records of...
Non-native Rhizophora mangle as sinks for coastal contamination on Moloka'i, Hawai'i
Geoffrey Szafranski, Elise F. Granek, Michelle L. Hladik, Mia Hackett
2024, Environmental Advances (15)
Coastal mangrove forests provide a suite of environmental services, including sequestration of anthropogenic contamination. Yet, research lags on the environmental fate and potential human health risks of mangrove-sequestered contaminants in the context of mangrove removal for development and range shifts due to climate...
Exploring the uncertainty of machine learning models and geostatistical mapping of rare earth element potential in Indiana coals, USA
Snehamoy Chatterjee, C. Ozgen Karacan, Maria Mastalerz
2024, International Journal of Coal Geology (282)
Rare earth elements and yttrium (REEs) have a wide range of applications in high- and low-carbon technologies. The strategic significance of REEs has grown due to their expanding applications in manufacturing industries and the constrained availability of these essential resources. This research explores the...
Forecasting water levels using machine (deep) learning to complement numerical modelling in the southern Everglades, USA
Courtney S Forde, Biswa Bhattacharya, Dimitri Solomatine, Eric Swain, Nicholas Aumen
Gerald A. Corzo Perez, Dimitri Solomatine, editor(s)
2024, Book chapter, Advanced hydroinformatics: Machine learning and optimization for water resources
Water level is an important guide for water resource management and wetland ecosystems, defining one of the most basic processes in hydrology. This research seeks to investigate the possibility of complementing numerical modeling with a Machine Learning (ML) model to forecast daily water levels in the southern Everglades in Florida,...
A new method for bioassessment of ecosystems with complex communities and environmental gradients
Donald Schoolmaster, Valerie A. Partridge
2024, Ecological Indicators (158)
Bioassessment of complex and heterogeneous ecosystems is a challenge when there are multiple, strong, natural environmental gradients; unknown, or spatially varying, mixtures of stressors; and large numbers of taxa with unknown responses to both the environmental gradients and the stressors. Current...
Neogene faulting, basin development, and relief generation in the southern Klamath Mountains (USA)
Melanie J. Michalak, Susan M. Cashman, Victoria Langenheim, Taylor C. Team, Dana J. Christensen
2024, Geosphere (20) 237-266
Development and evaluation of models for tectonic evolution in the Cascadia forearc require understanding of along-strike heterogeneity of strain distribution, uplift, and upper-plate characteristics. Here, we investigated the Neogene geologic record of the Klamath Mountains province in southernmost Cascadia and obtained apatite (U-Th)/He (AHe) thermochronology of Mesozoic plutons, Neogene graben...
Pliocene Model Intercomparison Project Phase 3 (PlioMIP3) – Science plan and experimental design
Alan M Haywood, Julia C. Tindall, Lauren Burton, M.A. Chandler, Aisling M Dolan, Harry J. Dowsett, R. Feng, Tamara Fletcher, Kevin M. Foley, Daniel Hill, Stephen Hunter, B. Otto-Bliesner, D.J. Lunt, Marci M. Robinson, U. Salzmann
2024, Global and Planeatary Change (232)
The Pliocene Model Intercomparison Project (PlioMIP) was initiated in 2008. Over two phases PlioMIP has helped co-ordinate the experimental design and publication strategy of the community, which has included an increasing number of climate models and modelling groups from around the world. It has engaged with palaeoenvironmental scientists to foster new...
Co-production of models to evaluate conservation alternatives for a threatened fish in a rapidly changing landscape
Joseph R. Benjamin, Jason B. Dunham, Nolan P. Banish, David K Hering, Zachary Tiemann
2024, Aquatic Sciences (86)
Reintroductions are one means of managing species distributions, but the feasibility of such efforts is uncertain. Here we consider reintroduction for threatened bull trout (Salvelinus confluentus) that currently occupy a small fraction of historically occupied habitats in the upper Klamath River basin owing to climate warming...
Strategic restoration planning for land birds in the Colorado River Delta, Mexico
Joanna Grand, Timothy D Meehan, William V. Deluca, Julia Morton, Jennifer Pitt, Alejandra Calvo-Fonseca, Chris Dodge, Martha Gómez-Sapiens, Eduardo Gonzalez Sargas, Osvel Hinojosa-Huerta, Pamela L. Nagler, Carlos Restrepo-Giraldo, Patrick B. Shafroth, Stefanny Villagomez-Palma, Chad B Wilsey
2024, Journal of Environmental Management (351)
Ecological restoration is an essential strategy for mitigating the current biodiversity crisis, yet restoration actions are costly. We used systematic conservation planning principles to design an approach that prioritizes restoration sites for birds and tested it in a riparian forest restoration program in the...
Managing the threat of infectious disease in fisheries and aquaculture using structured decision making
Brian J. Irwin, Megan M. Tomamichel, Marc E. Frischer, Richard J. Hall, Alaina D. E. Davis, Thomas H. Bliss, Pejman Rohani, James E. Byers
2024, Frontiers in Ecology and the Environment (22)
Fisheries and aquaculture provide food and economic security, especially in the developing world, but both face challenges from infectious disease. Here, we consider management of disease issues from a structured decision-making perspective to examine how infectious disease can threaten seafood production and influence management decisions....
Perceived constraints to participating in wildlife-related recreation
Nicholas W. Cole, Emily J. Wilkins, Kaylin Clements, Rudy Schuster, Ashley A. Dayer, H. W. Harshaw, David C. Fulton, Jennifer N. Duberstein, Andrew H. Raedeke
2024, Journal of Outdoor Recreation and Tourism (45)
Wildlife-related recreationists play an important role in conservation. Understanding constraints to wildlife-related activities is critical for maintaining or increasing participation in activities like birdwatching and hunting. A mail-out survey was administered to a generalized sample representative of U.S. residents (i.e., not specific to birdwatching or hunting) in early 2017 to determine what would...
