Understanding the water resources of a mountain-block aquifer: Tucson Mountains, Arizona
Christopher J. Eastoe, Kimberly R. Beisner
2022, Journal of Contemporary Water Research & Education (175) 1-14
Water resources are limited in arid locations such as Tucson Basin. Residential development in the Tucson Mountains to the west of Tucson, Arizona, is limited by groundwater resources. Groundwater samples were collected from fractured bedrock and alluvial aquifers surrounding the Tucson Mountains to assess water quality and recharge history through...
Impoundment increases methane emissions in Phragmites-invaded coastal wetlands
Rebecca Sanders-DeMott, Meagan J. Eagle, Kevin D. Kroeger, Faming Wang, Thomas W. Brooks, Jennifer A. O’Keefe Suttles, Sydney K. Nick, Adrian G. Mann, Jianwu Tang
2022, Global Change Biology (28) 4539-4557
Saline tidal wetlands are important sites of carbon sequestration and produce negligible methane (CH4) emissions due to regular inundation with sulfate-rich seawater. Yet, widespread management of coastal hydrology has restricted tidal exchange in vast areas of coastal wetlands. These ecosystems often undergo impoundment and freshening, which...
Spatially explicit management of genetic diversity using ancestry probability surfaces
Robert Massatti, Daniel E. Winkler
2022, Methods in Ecology and Evolution (13) 2668-2681
1. Ecological restoration and conservation efforts are increasing worldwide and the management of intraspecific genetic variation in plants and animals, an important component of biodiversity, is increasingly valued. As a result, tailorable, spatially explicit approaches to map genetic variation are needed to support decision-making and management frameworks related to the...
Integrated animal movement and spatial capture–recapture models: Simulation, implementation, and inference
B. Gardner, B.T. McClintock, Sarah J. Converse, Nathan J. Hostetter
2022, Ecology (103)
Over the last decade, spatial capture–recapture (SCR) models have become widespread for estimating demographic parameters in ecological studies. However, the underlying assumptions about animal movement and space use are often not realistic. This is a missed opportunity because interesting ecological questions related to animal space use, habitat selection, and behavior...
P- and S-wave velocity estimation by ensemble Kalman inversion of dispersion data for strong motion stations in California
Elif Ecem Bas, Elnaz Seylabi, Alan K. Yong, Hesam Tehrani, Domniki Asimaki
2022, Geophysical Journal International (231) 536-551
This study uses an ensemble Kalman method for near-surface seismic site characterization of 154 network earthquake monitoring stations in California to improve the resolution of S-wave velocity (VS) and P-wave velocity (VP) profiles—up to the resolution depth—coupled with better quantification of uncertainties compared to previous site characterization studies at this network. These...
Stream size, temperature, and density explain body sizes of freshwater salmonids across a range of climate conditions
Robert K. Al-Chokhachy, Benjamin Letcher, Clint C. Muhlfeld, Jason B. Dunham, Timothy Joseph Cline, Nathaniel P. Hitt, James Roberts, David Schmetterling
2022, Canadian Journal of Fisheries and Aquatic Sciences (79) 1729-1744
Climate change and anthropogenic activities are altering the body sizes of fishes, yet our understanding of factors influencing body size for many taxa remains incomplete. We evaluated the relationships between climate, environmental, and landscape attributes and the body size of different taxa of freshwater trout (Salmonidae) in the USA. Hierarchical...
Comparison of Digital Terrain Models from two photoclinometry methods
Randolph L. Kirk, David Mayer, Colin M. Dundas, Benjamin H Wheeler, Ross A. Beyer, Oleg Alexandrov
2022, International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences (XLIII-B3) 1059-1067
We evaluate the horizontal resolution and vertical precision for digital topographic models (DTMs) of the Moon derived from image radiance information, a process known as photoclinometry (PC) or shape-from-shading (SfS). We use the implementations in two available planetary image processing software systems, single image PC in the U.S. Geological...
Geologic controls on groundwater salinity reversal in North Coles Levee Oil Field, southern San Joaquin Valley, California, USA
Michael D Flowers, David H. Shimabukuro, Michael J. Stephens, John G. Warden, Janice M. Gillespie, Will Chang
2022, Environmental Earth Sciences (81)
This paper documents a reversal in the groundwater salinity depth gradient in the North Coles Levee Oil Field in the San Joaquin Valley, California. Salinity, measured in mg/L, was mapped with water quality data from groundwater and oil and gas wells and salinity estimated from oil...
Machine learning and data augmentation approach for identification of rare earth element potential in Indiana Coals, USA
Snahamoy Chatterjee, Maria Mastalerz, Agnieszka Drobniak, C. Ozgen Karacan
2022, International Journal of Coal Geology (259)
Rare earth elements and yttrium (REYs) are critical elements and valuable commodities due to their limited availability and high demand in a wide range of applications and especially in high-technology products. The increased demand and geopolitical pressures motivate the search for alternative sources of REYs, and coal, coal waste, and...
Modeling spatiotemporal abundance and movement dynamics using an integrated spatial capture–recapture movement model
Nathan J. Hostetter, E.V. Regehr, R.R. Wilson, Andy Royle, Sarah J. Converse
2022, Ecology (103)
Animal movement is a fundamental ecological process affecting the survival and reproduction of individuals, the structure of populations, and the dynamics of communities. Methods to quantify animal movement and spatiotemporal abundances, however, are generally separate and therefore omit linkages between individual-level and population-level processes. We describe an integrated spatial capture–recapture...
Toxicological responses to sublethal anticoagulant rodenticide exposure in free-flying hawks
Nimish B. Vyas, Barnett A. Rattner, J. Michael Lockhart, Craig S. Hulse, Clifford P. Rice, Frank Kuncir, Kevin Kritz
2022, Environmental Science and Pollution Research (29) 74024-74037
An important component of assessing the hazards of anticoagulant rodenticides to non-target wildlife is observations in exposed free-ranging individuals. The objective of this study was to determine whether environmentally realistic, sublethal first-generation anticoagulant rodenticide (FGAR) exposures via prey can result in direct or indirect adverse effects to free-flying raptors. We...
Watching the Cryosphere thaw: Seismic monitoring of permafrost degradation using distributed acoustic sensing during a controlled heating experiment
Feng Cheng, Nathaniel J. Lindsey, Valeriia Sobolevskaia, Shan Dou, Barry Freifeld, Todd Wood, Stephanie R. James, Anna M. Wagner, Jonathan B. Ajo-Franklin
2022, Geophysical Research Letters (49)
Permafrost degradation is rapidly increasing in response to a warming Arctic climate, altering landscapes and damaging critical infrastructure. Solutions for monitoring permafrost thaw dynamics are essential to understand biogeochemical feedbacks as well as to issue warnings for hazardous geotechnical conditions. We investigate the feasibility of permafrost monitoring...
N and P constrain C in ecosystems under climate change: Role of nutrient redistribution, accumulation, and stoichiometry
Ed Rastetter, Bonnie Kwiatkowski, David Kicklighter, Audrey Barker Plotkin, Helene Genet, Jesse Nippert, Kimberly O’Keefe, Steven Perakis, Stephen Porder, Sarah Roley, Roger W. Ruess, Jonathan R. Thompson, William Wieder, Kevin WIlcox, Ruth Yanai
2022, Ecological Applications (32)
We use the Multiple Element Limitation (MEL) model to examine responses of twelve ecosystems to elevated carbon dioxide (CO2), warming, and 20% decreases or increases in precipitation. Ecosystems respond synergistically to elevated CO2, warming, and decreased precipitation combined because higher water-use efficiency with elevated CO2 and higher...
Hydrogeology and groundwater quality in the San Agustin Basin, New Mexico, 1975–2019
Jeff D. Pepin, Rebecca E. Travis, Johanna M. Blake, Alex Rinehart, Daniel Koning
2022, Scientific Investigations Report 2022-5029
This report describes the findings of a U.S. Geological Survey study, completed in cooperation with the Bureau of Land Management, focused on better understanding the present-day (1975–2019) hydrogeology and groundwater quality of the San Agustin Basin in west-central New Mexico to support sustainable groundwater resource management. The basin hosts a...
Fundamental science and engineering questions in planetary cave exploration
J. Judson Wynne, Timothy N. Titus, Ali-akbar Agha-Mohammadi, Armando Azua-Bustos, Penelope J. Boston, Pablo de Leon, Cansu Demirel-Floyd, Jo de Waele, Heather Jones, Michael J. Malaska, Ana Z. Miller, Haley M. Sapers, Francesco Sauro, Derek L. Sonderegger, Kyle Uckert, Uland Y. Wong, E. Calvin Alexander Jr., Leroy Chiao, Glen E. Cushing, John DeDecker, Alberto G. Fairen, Amos Frumkin, Gary L. Harris, Michelle L. Kearney, Laura A. Kerber, Richard J. Leveille, Kavya Manyapu, Matteo Massironi, John E. Mylroie, Bogdan P. Onac, Scott E. Parazynski, Charity M. Phillips-Lander, T. H. Prettyman, Dirk Schulze-Makuch, Robert V. Wagner, William L. Whittaker, Kaj E. Williams
2022, JGR Planets (127)
Nearly half a century ago, two papers postulated the likelihood of lunar lava tube caves using mathematical models. Today, armed with an array of orbiting and fly-by satellites and survey instrumentation, we have now acquired cave data across our solar system—including the identification of potential cave entrances on the Moon,...
Advances in the study and understanding of groundwater discharge to surface water
Carlos Duque, Donald O. Rosenberry
2022, Water (14)
Groundwater discharge is vitally important for maintaining or restoring valuable ecosystems in surface water and at the underlying groundwater-surface-water ecotone. Detecting and quantifying groundwater discharge is challenging because rates of flow can be very small and difficult to measure, exchange is commonly highly heterogeneous both in space and time, and...
Constructing a large-scale landslide database across heterogeneous environments using task-specific model updates
Savinay Nagendra, Daniel Kifer, Benjamin B. Mirus, Te Pei, Kathryn Lawson, Srikanth Banagere Manjunatha, Weixin Li, Hien Nguyen, Tong Qiu, Sarah Tran, Chaopeng Shen
2022, IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing (15) 4349-4370
Preparation and mitigation efforts for widespread landslide hazards can be aided by a large-scale, well-labeled landslide inventory with high location accuracy. Recent smallscale studies for pixel-wise labeling of potential landslide areas in remotely-sensed images using deep learning (DL) showed potential but were based on data from very small, homogeneous regions...
Global environmental changes more frequently offset than intensify detrimental effects of biological invasions
Bianca Lopez, Jenica Allen, Jeffrey Dukes, Jonathan Lenoir, Montserrat Vila, Dana Blumenthal, Evelyn M. Beaury, Emily J. Fusco, Brittany B. Laginhas, Toni Lyn Morelli, Mitchell W. O’Neill, Cascade J.B. Sorte, Alberto Maceda-Veiga, Raj Whitlock, Bethany A. Bradley
2022, Proceedings of the National Academy of Sciences (119)
Human-induced abiotic global environmental changes (GECs) and the spread of nonnative invasive species are rapidly altering ecosystems. Understanding the relative and interactive effects of invasion and GECs is critical for informing ecosystem adaptation and management, but this information has not been synthesized. We conducted a meta-analysis to investigate effects of...
#TheSmoreYouKnow and #emergencycute: A conceptual model on the use of humor by science agencies during crisis to create connection, empathy, and compassion
Sara K. McBride, Jessica L. Ball
2022, International Journal of Disaster Risk Reduction (27)
Studies from a variety of disciplines reveal that humor can be a useful method to reduce stress and increase compassion, connection, and empathy between agencies and people they serve during times of crisis. Despite this growing evidence base, humor's use during...
Assessment of undiscovered conventional oil and gas resources of the greater Taranaki Basin and East Coast Basin of New Zealand, 2020
Christopher J. Schenk, Tracey J. Mercier, Marilyn E. Tennyson, Geoffrey S. Ellis, Cheryl A. Woodall, Phuong A. Le, Heidi M. Leathers-Miller, Ronald M. Drake II
2022, Fact Sheet 2021-3059
Using a geology-based assessment methodology, the U.S. Geological Survey estimated means of 806 million barrels of oil and 17.0 trillion cubic feet of gas within the greater Taranaki Basin and East Coast Basin of New Zealand....
Assessment of undiscovered conventional oil and gas resources of the Perth Basin, NW Shelf, Browse Basin, and Bonaparte Gulf Basin provinces of Western Australia, 2020
Christopher J. Schenk, Tracey J. Mercier, Cheryl A. Woodall, Thomas M. Finn, Phuong A. Le, Kristen R. Marra, Heidi M. Leathers-Miller, Ronald M. Drake II
2022, Fact Sheet 2021-3060
Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean resources of 906 million barrels of oil and 132.8 trillion cubic feet of gas in four geologic provinces of Western Australia....
January 18, 2022, Red Hill synoptic groundwater-level survey, Hālawa area, O‘ahu, Hawai‘i
Rylen K. Nakama, Jackson N. Mitchell, Delwyn S. Oki
2022, Open-File Report 2022-1048
On January 18, 2022, groundwater levels were measured in selected wells in the Hālawa area, O‘ahu, Hawai‘i, constituting a synoptic groundwater-level survey (shortened herein to “synoptic survey”) of the area. Groundwater levels were measured mainly from 9:00 a.m. to 12:00 p.m. (times listed in Hawai‘i standard time) and provide a...
Status and understanding of groundwater quality in the Sacramento Metropolitan Domestic-Supply Aquifer study unit, 2017—California GAMA Priority Basin Project
George L. V Bennett V
2022, Scientific Investigations Report 2022-5021
Groundwater quality in the Sacramento Metropolitan Domestic-Supply Aquifer study unit (SacMetro-DSA) was studied from August to November 2017 as part of the second phase of the Priority Basin Project of the California Groundwater Ambient Monitoring and Assessment (GAMA) Program. The study unit is in parts of Amador, Placer, Sacramento, and...
Monitoring the movements of juvenile Pacific Lamprey (Entosphenus tridentatus) in the Yakima River, Washington, using acoustic telemetry, 2019–20
Theresa L. Liedtke, Ralph T. Lampman, Patrick Monk, Amy C. Hansen, Tobias J. Kock, Tyler E. Beals, Daniel Z. Deng, Michael S. Porter
2022, Open-File Report 2022-1052
Anthropogenic barriers to main-stem and tributary passage are one of the primary threats associated with declining populations of Pacific Lamprey (Entosphenus tridentatus) in the Columbia River Basin. Juvenile lamprey are of special interest because their downstream migration to the ocean may be affected by barriers such as dams or water...
Potential effects of out-of-basin groundwater transfers on spring discharge, base flow, and groundwater storage pertaining to the Rush Springs aquifer in and near the Caddo Nation of Oklahoma Tribal jurisdictional area, western Oklahoma
L.G. Labriola, Cory A. Russell, John H. Ellis
2022, Scientific Investigations Report 2022-5044
The U.S. Geological Survey (USGS), in cooperation with the Caddo Nation of Oklahoma and Bureau of Indian Affairs, assessed four groundwater-withdrawal scenarios and their potential effects on the Rush Springs aquifer in and near the Caddo Nation of Oklahoma Tribal jurisdictional area in western Oklahoma. Increases in industrial and public...
