Tracking magma pathways and surface faulting in the Southwest Rift Zone and the Koaʻe fault system (Kīlauea volcano, Hawai ‘i) using photogrammetry and structural observations
Stefano Mannini, Joel Ruch, Richard W. Hazlett, Drew T. Downs, Carolyn Parcheta, Steven P. Lundblad, James Anderson, Ryan L. Perroy, Nicolas Oestreicher
2024, Bulletin of Volcanology (86)
Volcanic islands are often subject to flank instability, resulting from a combination of magmatic intrusions along rift zones and gravitational spreading causing extensional faulting at the surface. Here, we study the Koaʻe fault system (KFS), located south of the summit caldera of Kīlauea volcano in Hawaiʻi,...
Deep resistivity geophysics of the San Juan–Silverton caldera complex, San Juan County, Colorado (USA)
Brian D. Rodriguez, Douglas Yager, Eric D. Anderson, Robert L. Runkel, Bennett Eugene Hoogenboom, Bruce Smith, Maria Deszcz-Pan
2024, Geosphere (20) 910-934
Magnetotelluric (MT) and audiomagnetotelluric (AMT) data are used to better understand the subsurface geology and mineral resources in the San Juan–Silverton caldera complex located near Silverton, Colorado, western United States, as part of the extensive southern Rocky Mountains volcanic field that covers much...
SKHASH: A python package for computing earthquake focal mechanisms
Robert Skoumal, Jeanne L. Hardebeck, Peter M. Shearer
2024, Seismological Research Letters (95) 2519-2526
We introduce a Python package for computing focal mechanism solutions. This algorithm, which we refer to as SKHASH, is largely based on the HASH algorithm originally written in Fortran over 20 yr ago. HASH innovated the use of suites of solutions, spanning the...
Breeding population size of the Pink-footed Shearwater Ardenna creatopus on Isla Mocha, Chile
Ryan D. Carle, Tiare Varela, Valentina Colodro, T.J. Clark-Wolf, Jonathan J. Felis, Peter Hodum, Francisco Javier Astete Castillo, Veronica Lopez
2024, Marine Ornithology: Journal of Seabird Research and Conservation (52) 85-96
Species population estimates are a fundamental component of conservation planning, but there are deficiencies in reliable data for many seabirds. The Pink-footed Shearwater Ardenna creatopus is a seabird that breeds on three islands worldwide, with the largest population on Isla Mocha, Chile. We aimed to update the breeding population estimate of...
Tropical or extratropical cyclones: What drives the compound flood hazard, impact, and risk for the United States Southeast Atlantic coast?
Kees Nederhoff, Tim Leijnse, Kai Alexander Parker, Jennifer Anne Thomas, Andrea O’Neill, Maarten van Ormondt, Robert T. McCall, Li H. Erikson, Patrick L. Barnard, Amy C. Foxgrover, Wouter Klessens, Norberto C. Nadal-Caraballo, Chris Massey
2024, Natural Hazards (120) 8779-8825
Subtropical coastlines are impacted by both tropical and extratropical cyclones. While both may lead to substantial damage to coastal communities, it is difficult to determine the contribution of tropical cyclones to coastal flooding relative to that of extratropical cyclones. We conduct a large-scale flood hazard and...
A high-resolution, daily hindcast (1990-2021) of Alaskan river discharge and temperature from coupled and optimized physical models
Dylan Blaskey, Michael Gooseff, Yifan Cheng, Andrew Newman, Joshua C. Koch, Keith Musselman
2024, Water Resources Research (60)
Water quality and freshwater ecosystems are affected by river discharge and temperature. Models are frequently used to estimate river temperature on large spatial and temporal scales due to limited observations of discharge and temperature. In this study, we use physically based river routing and temperature models to...
Opportunities and challenges for precipitation forcing data in post-wildfire hydrologic modeling applications
Trevor Fuess Partridge, Zachary Johnson, Rachel Sleeter, Sharon L. Qi, Michelle A. Walvoord, Sheila F. Murphy, Cara L. Peterman-Phipps, Brian A. Ebel
2024, WIREs Water (11)
The frequency and extent of wildfires have increased in recent decades with immediate and cascading effects on water availability in many regions of the world. Precipitation is used as primary input to hydrologic models and is a critical driver of post-wildfire hydrologic hazards including debris flows, flash floods, water-quality effects,...
Predator disturbance contributed to Common Murre Uria aalge breeding failures in Cook Inlet, Alaska following the 2014–2016 Pacific marine heatwave
Caitlin Elizabeth Marsteller, Mayumi L. Arimitsu, Sarah K. Schoen, Samuel B Stark, John F. Piatt
2024, Marine Onithology (52) 129-139
The 2014-2016 Pacific marine heatwave caused unprecedented die-offs and multi-year reproductive failures for Common Murres Uria aalge along the west coast of North America. Lingering impacts, such as declines in colony attendance and productivity, have persisted at some colonies following the heatwave and are attributed largely to changes in prey availability...
Versatile modeling of deformation (VMOD) inversion framework: Application to 20 years of observations at Westdahl Volcano and Fisher Caldera, Alaska, US
Mario Angarita, Ronni Grapenthin, Scott Henderson, Michael S Christoffersen, Kyle R. Anderson
2024, Geochemistry, Geophysics, Geosystems (25)
We developed an open source, extensible Python-based framework, that we call the Versatile Modeling of Deformation (VMOD), for forward and inverse modeling of crustal deformation sources. VMOD abstracts from specific source model implementations, data types and inversion methods. We implement the most common geodetic source models which can be combined...
Using climate-fire analog mapping to inform climate change adaptation strategies for wildland fire in protected areas of the conterminous US
Adam Terando, Peng Gao, John A. Kupfer, Kevin S. Young, J. Kevin Hiers
2024, Global Environmental Change Advances (2)
Potential changes in wildland fire regimes due to anthropogenic climate change can be projected using data from climate models, but directly applying these meteorological variables to long-term planning and adaptive management activities may be difficult for decision makers. Analog mapping, in...
SSEBop evapotranspiration estimates using synthetically derived Landsat data from the continuous change detection and classification algorithm
Mikael Peter Hiestand, Heather J. Tollerud, W. Chris Funk, Gabriel B. Senay, MacKenzie Friedrichs, Kate Fickas
2024, Remote Sensing (16)
The operational Simplified Surface Energy Balance (SSEBop) model has been utilized to generate gridded evapotranspiration data from Landsat images. These estimates are primarily driven by two sources of information: reference evapotranspiration and Landsat land surface temperature (LST) values. Hence, SSEBop is limited by the availability of Landsat data. Here,...
Comparison of measured versus modeled TOC in the Tuscaloosa marine shale of Southwestern Mississippi, U.S.A.
Celeste D. Lohr, Matthew D. Merrill
2024, Marine and Petroleum Geology (164)
This study presents a comparison of measured versus modeled total organic carbon (TOC) in the Upper Cretaceous Tuscaloosa marine shale (TMS) of southwestern Mississippi as a case study to evaluate the effects of mineralogy on the TOC estimated from the ΔlogR method....
Food, water quality, and the growth of a freshwater mussel: Implications for population restoration
Ayla J. Skorupa, Allison H. Roy, Peter D. Hazelton, David Perkins, Timothy Timothy Warren, Brian S. Cheng
2024, Freshwater Science (43) 107-123
Unknown causes behind the loss of freshwater mussel populations have prompted population restoration as a tool to recover these imperiled species. However, water quality conditions that support mussel species within natural environments and potential causes of water quality impairment in systems with declining populations are typically unknown and may be...
Tracking data highlight the importance of human-induced mortality for large migratory birds at a flyway scale
Juan Serratosa, Steffen Oppel, Andrea Santangeli, Shay Rotics, Stuart H. M. Butchart, Luis S. Cano-Alonso, Jose Luis Telleria, Ryno Kemp, Aaron Nicholas, Aigars Kalvansj, Aitor Galarza, Aldina M. A. Franco, Alessandro Andreotti, Alexander N.G. Kirschel, Alex Ngari, Alvaro Soutullo, Ana Bermejo-Bermejo, Andre J Botha, Andrea Ferri, Angelos Evangelidis, Anna Cenerini, Anton Stamenov, Antonio Hernandez-Matias, Arianna Aradis, Atanas P Grozdanov, Beneharo Rodriguez, Cagan H. Sekercioglu, Catuxa Cerecedo-Iglesias, Christina Kassara, Christos Barboutis, Claire Bracebridge, Clara Garcia-Ripolles, Corinne J. Kendall, Damijan Denac, Dana G. Schabo, David R Barber, Dimitar V Popov, Dobromir D Dobrev, Egidio Mallia, Elena Kmetova-Biro, Ernesto Alvarez, Evan R Buechly, Evgeny A. Bragin, Fabrizio Cordischi, Fadzai Zengeya, Flavio Monti, Francois Mougeot, Gareth Tate, Georgi Stoyanov, Giacomo Dell'Omo, Giuseppe Lucia, Gradimir Gradev, Guido Ceccolini, Guilad Friedemann, Hans-Gunther Bauer, Holger Kolberg, Hristo Peshev, Ines Catry, Ingar J. Oien, Isidoro Carbonell Alanis, Ivan Literak, Ivan Pokrovsky, Ivar Ojaste, Jan E. Ostnes, Javier de la Puente, Joan Real, Joao L. Guilherme, Jose C. Gonzalez, Jose M. Fernandez-Garcia, Juan Antonio Gil, Julien Terraube, Karel Poprach, Karen Aghababyan, Katharina Klein, Keith L. Bildstein, Kerri Wolter, Kjell Janssens, Kyle D. Kittelberger, Lindy J. Thompson, Mansoor H. AlJahdhami, Manuel Galan, Marcin Tobolka, Mario Posillico, Mario Cipollone, Marion Gschweng, Maris Strazds, Mark Boorman, Mark Zvidzai, Marta Acacio, Marta Romero, Martin Wikelski, Matthias Schmidt, Maurizio Sara, Michael J. McGrady, Mindaugas Dagys, Monique L. Mackenzie, Muna Al Taq, Msafiri P. Mgumba, Munir Z. Virani, Nicolaos I. Kassinis, Nicolo Borgianni, Nikki Thie, Nikos Tsiopelas, Nili Anglister, Nina Farwig, Nir Sapir, Oddmund Kleven, Oliver Krone, Olivier Duriez, Orr Spiegel, Osama Al Nouri, Pascual Lopez-Lopez, Patrik Byholm, Pauline L. Kamath, Pawel Mirski, Peter Palatitz, Pietro Serroni, Rainer Raab, Ralph Buij, Ramūnas Žydelis, Ran Nathan, Rauri C.K. Bowie, Rigas Tsiakiris, Richard Stratton Hatfield, Roi Harel, Rolf T. Kroglund, Ron Efrat, Ruben Liminana, Salim Javed, Sasa P. Marinkovic, Sascha Rösner, Sasha Pekarsky, Shiv R. Kapila, Simeon A. Marin, Simon Krejci, Sinos Giokas, Siranush Tumanyan, Sondra Turjeman, Sonja C. Kruger, Steven R. Ewing, Stoycho Stoychev, Stoyan C. Nikolov, Tareq E. Qaneer, Theresa Spatz, Thomas G. Hadjikyriakou, Thomas Mueller, Todd E. Katzner, Tomas Aarvak, Tomas Veselovsky, Torgeir Nygard, Ugo Mellone, Ulo Vali, Urmas Sellis, Vicente Urios, Vladimir Nemcek, Volen Arkumarev, Wayne M. Getz, Wolfgang Fiedler, Willem Van den Bossche, Yael Lehnardt, Victoria R. Jones
2024, Biological Conservation (293)
Human-induced direct mortality affects huge numbers of birds each year, threatening hundreds of species worldwide. Tracking technologies can be an important tool to investigate temporal and spatial patterns of bird mortality as well as their drivers. We compiled 1704 mortality...
Carbon dioxide toxicity to zebra mussels (Dreissena polymorpha) is dependent on water chemistry
Matthew T. Barbour, Matthew J. Meulemans, Todd J. Severson, Jeremy K. Wise, Diane L. Waller
2024, Environmental Toxicology and Chemistry (43) 1312-1319
Carbon dioxide (CO2) is gaining interest as a tool to combat aquatic invasive species, including zebra mussels (Dreissena polymorpha). However, the effects of water chemistry on CO2 efficacy are not well described. We conducted five trials in which we exposed adult zebra mussels to a range...
Variability in coastal habitat available for Longfin Smelt Spirinchus thaleichthys in the northeastern Pacific Ocean
Matthew J. Young, Frederick V. Feyrer, Steven T Lindley, David D. Huff
2024, Frontiers in Marine Science (11)
An understanding of oceanographic conditions and processes important to marine animal ecology is fundamental to the development of effective management and conservation actions. Longfin Smelt (Spirinchus thaleichthys) is a pelagic forage fish found in coastal and estuarine waters along the Pacific coast of North America from Alaska to central...
Deep learning of estuary salinity dynamics is physically accurate at a fraction of hydrodynamic model computational cost
Galen Gorski, Salme Ellen Cook, Amelia Marie Snyder, Alison P. Appling, Theodore Paul Thompson, Jared David Smith, John C. Warner, Simon Nemer Topp
2024, Limnology and Oceanography (69) 1070-1085
Salinity dynamics in the Delaware Bay estuary are a critical water quality concern as elevated salinity can damage infrastructure and threaten drinking water supplies. Current state-of-the-art modeling approaches use hydrodynamic models, which can produce accurate results but are limited by significant computational costs. We...
Groundwater and surface-water interactions in the He‘eia watershed, O‘ahu, Hawai‘i—Insights from analysis of historical data and numerical groundwater-model simulations
Scot K. Izuka, Heidi L. Kane, Kolja Rotzoll
2024, Scientific Investigations Report 2024-5020
He‘eia and ‘Ioleka‘a Streams in the He‘eia watershed on O‘ahu, Hawai‘i, receive substantial discharge from dike-impounded groundwater. Previous studies indicated that groundwater withdrawals from the watershed affect streamflow. Resource managers and users seek information that can be used to balance the needs of competing uses of groundwater and streamflow in...
Mule deer (Odocoileus hemionus) resource selection: Trade-offs between forage and predation risk
James W. Cain III, Jacob H. Kay, Stewart G. Liley, Jay V. Gedir
2024, Frontiers in Ecology and Evolution (12)
Ungulates commonly select habitat with higher forage biomass and or nutritional quality to improve body condition and fitness. However, predation risk can alter ungulate habitat selection and foraging behavior and may affect their nutritional condition. Ungulates often choose areas with lower predation risk, sometimes sacrificing higher quality forage. This forage–predation...
Evaluating the potential for efficient, UAS-based reach-scale mapping of river channel bathymetry from multispectral images
Carl J. Legleiter, Lee R. Harrison
2024, Frontiers in Remote Sensing (5)
Introduction: Information on spatial patterns of water depth in river channels is valuable for numerous applications, but such data can be difficult to obtain via traditional field methods. Ongoing developments in remote sensing technology have enabled various image-based approaches for mapping river bathymetry; this study evaluated the potential to retrieve...
Apparent non-double-couple components as artifacts of moment tensor inversion
Boris Rosler, Seth Stein, Adam T. Ringler, Jiri Vackar
2024, Seismica (3)
Compilations of earthquake moment tensors from global and regional catalogs find pervasive non-double-couple (NDC) components with a mean deviation from a double-couple (DC) source of around 20%. Their distributions vary only slightly with magnitude, faulting mechanism, or geologic environments. This consistency suggests that for most earthquakes, especially smaller ones whose...
Preliminary implications of viscoelastic ray theory for anelastic seismic tomography models
Roger D. Borcherdt
2024, Bulletin of the Seismological Society of America (114) 1243-1263
The recent developments in general viscoelastic ray theory provide a rigorous mathematical framework for anelastic seismic tomography. They provide closed‐form solutions of forward ray‐tracing and simple inverse problems for anelastic horizontal and spherical layered media with material gradients. They provide ray‐tracing computation algorithms...
Groundwater hydrology, groundwater and surface-water interactions, aquifer testing, and groundwater-flow simulations for the Fountain Creek alluvial aquifer, near Colorado Springs, Colorado, 2018–20
Connor P. Newman, Cory A. Russell, Zachary D. Kisfalusi, Suzanne S. Paschke
2024, Scientific Investigations Report 2023-5119
From 2018 through 2020, the U.S. Geological Survey, in cooperation with the Air Force Civil Engineering Center, conducted an integrated study of the Fountain Creek alluvial aquifer located near Colorado Springs, Colorado. The objective of the study was to characterize hydrologic conditions for the alluvial aquifer pertinent to the potential...
Classification of lakebed geologic substrate in autonomously collected benthic imagery using machine learning
Joseph K. Geisz, Phillipe Alan Wernette, Peter C. Esselman
2024, Remote Sensing (16)
Mapping benthic habitats with bathymetric, acoustic, and spectral data requires georeferenced ground-truth information about habitat types and characteristics. New technologies like autonomous underwater vehicles (AUVs) collect tens of thousands of images per mission making image-based ground truthing particularly attractive. Two types of machine learning (ML) models, random forest (RF) and...
Deep learning workflow to support in-flight processing of digital aerial imagery for wildlife population surveys
Tsung-Wei Ke, Stella X Yu, Mark D. Koneff, David L. Fronczak, Luke J. Fara, Travis Harrison, Kyle Lawrence Landolt, Enrika Hlavacek, Brian R. Lubinski, Timothy White
2024, PLoS ONE (19)
Deep learning shows promise for automating detection and classification of wildlife from digital aerial imagery to support cost-efficient remote sensing solutions for wildlife population monitoring. To support in-flight orthorectification and machine learning processing to detect and classify wildlife from imagery in near real-time, we evaluated deep learning methods that address...
