Fluid transport and storage in the Cascadia forearc influenced by overriding plate lithology
Gary D. Egbert, Bo Yang, Paul A. Bedrosian, Kerry Key, Dean Livelybrooks, Adam Schultz, Anna Kelbert, Blake Parris
2022, Nature Geoscience (15) 677-682
Subduction of hydrated oceanic lithosphere can carry water deep into the Earth, with consequences for a range of tectonic and magmatic processes. Most of the fluid is released in the forearc where it plays a critical role in controlling the mechanical properties and seismic behaviour of the subduction megathrust. Here...
Africa’s drylands in a changing world: Challenges for wildlife conservation under climate and land-use changes in the Greater Etosha Landscape
Wendy Christine Turner, Stéphanie Périquet, Claire E. Goelst, Kimberlie B. Vera, Elissa Z. Cameron, Kathleen A. Alexander, Jerrold L. Belant, Claudine C. Cloete, Pierre du Preez, Wayne M. Getz, Robyn S. Hetem, Pauline L. Kamath, Marthin K. Kasaona, Monique Mackenzie, John Mendelsohn, John K.E. Mfune, Jeff Muntifering, Ruben Portas, H. Ann Scott, W. Maartin Strauss, Wilferd Versfeld, Bettina Wachter, George Wittemyer, J. Werner Kilian
2022, Global Ecology and Conservation (38)
Proclaimed in 1907, Etosha National Park in northern Namibia is an iconic dryland system with a rich history of wildlife conservation and research. A recent research symposium on wildlife conservation in the Greater Etosha Landscape (GEL) highlighted increased concern of how...
Drought and nutrient pollution produce multiple interactive effects in stream ecosystems
R.J. Fournier, Daniel D. Magoulick
2022, PLoS ONE (17)
Drought and nutrient pollution can affect the dynamics of stream ecosystems in diverse ways. While the individual effects of both stressors are broadly examined in the literature, we still know relatively little about if and how these stressors interact. Here, we performed a mesocosm experiment that explores the compounded effects...
Subaerial volcaniclastic deposits — Influences of initiation mechanisms and transport behaviour on characteristics and distributions
Jon J. Major
2022, Book chapter, Volcanic processes in the sedimentary record: When volcanoes meet the environment
Subaerial volcaniclastic deposits are produced principally by volcanic debris avalanches, pyroclastic density currents, lahars, and tephra falls. Those deposits have widely ranging geomorphic and sedimentologic characteristics; they can mantle, modify, or create new topography, and their emplacement and subsequent reworking can have an outsized impact on the geomorphic and sedimentologic...
Gill-net selectivity for fifteen fish species of the upper San Francisco Estuary
Marissa L. Wulff, Frederick V. Feyrer, Matthew J. Young
2022, San Francisco Estuary and Watershed Science (20)
Gill-net size selectivity for 15 fish species occurring in the upper San Francisco Estuary was estimated from a data set compiled from multiple studies which together contained 7,096 individual fish observations from 882 gill net sets. The gill nets considered in this study closely resembled the American Fisheries Society’s recommended...
Multiple agricultural cropland products of South Asia developed using Landsat-8 30 m and MODIS 250 m data using machine learning on the Google Earth Engine (GEE) cloud and spectral matching techniques (SMTs) in support of food and water security
Murali Krishna Gumma, Prasad Thenkabail, Pranay Panjala, Pardhasaradhi Teluguntla, Takashi Yamano, Ismail Mohammad
2022, GIScience & Remote Sensing (59) 1048-1077
Cropland products are of great importance in water and food security assessments, especially in South Asia, which is home to nearly 2 billion people and 230 million hectares of net cropland area. In South Asia, croplands account for about 90% of all human water use. Cropland extent, cropping intensity, crop...
Martian gully activity and the gully sediment transport system
Colin M. Dundas, Susan J. Conway, Glen E. Cushing
2022, Icarus (386)
The formation process for Martian gullies is a critical unknown for understanding recent climate conditions. Leading hypotheses include formation by snowmelt in a past climate, or formation via currently active CO2 frost processes. This paper presents an expanded catalog of >300 recent...
Can we accurately estimate sediment budgets on Mars?
Joel B. Sankey, Alan Kasprak, Matthew Chojnacki, Timothy N. Titus, Joshua Caster, Geoffrey DeBenedetto
2022, Earth and Planetary Science Letters (593)
Sediment budgets are fundamentally important for planetary science. However, only one primary method, based on remote sensing, is currently available for determining extraterrestrial sediment budgets. For determining sediment budgets on Earth, both in-situ and remote sensing methods are available. Despite the widespread use of the two methods, there has been...
Characterization of the bathymetry, hydrodynamics, water quality, infrastructure, and channel condition of the Old Erie Canal from DeWitt to its junction with the current Erie Canal in Verona, near Rome, New York, 2018–19
John F. Wernly
2022, Open-File Report 2021-1125
The Old Erie Canal has undergone sedimentation and aquatic growth that have restricted flow and diminished the aesthetic quality of the canal during the nearly 200 years since its construction. During 2018–2019, the U.S. Geological Survey (USGS) in cooperation with the Madison County Planning Department and the New York State...
Virtual special issue of recent advances on gas hydrates scientific drilling in Alaska
Ray Boswell, Koji Yamamoto, Timothy S. Collett, Norihiro Okinaka
2022, Journal of Energy & Fuels (36) 7921-7924
Gas hydrate refers to a non-stoichiometric clathrate that forms spontaneously in the natural environment whenever sufficient quantities of gases of appropriate size (most commonly methane) interact with abundant water under specific conditions of temperature and pressure. (1,2) Such...
Effects of return flows on stream water quality and availability in the Upper Colorado, Delaware, and Illinois River Basins
Scott Ator, Olivia L. Miller, David A. Saad
2022, PLOS Water (7)
Understanding effects of human water use and subsequent return flows on the availability and suitability of water for downstream uses is critical to efficient and effective watershed management. We compared spatially detailed estimates of stream chemistry within three watersheds in diverse settings to available standards to...
Classifying mixing regimes in ponds and shallow lakes
Meredith Holgerson, David Richardson, Joseph Roith, Lauren E Bortolotti, Kerri Finlay, Daniel J. Hornbach, Kshitij Gurung, Andrew Ness, Mikkel R. Andersen, Sheel Bansal, Jacques Finlay, Jacob Cianci-Gaskill, Shannon Hahn, Benjamin Janke, Cory P. McDonald, Jorrit Mesman, Rebecca L. North, Cassandra Roberts, Jon N. Sweetman, Jackie Webb
2022, Water Resource Research (58)
Lakes are classified by thermal mixing regimes, with shallow waterbodies historically categorized as continuously mixing systems. Yet, recent studies demonstrate extended summertime stratification in ponds, underscoring the need to reassess thermal classifications for shallow waterbodies. In this study, we examined the summertime thermal dynamics of 34 ponds...
Failure to achieve recommended environmental flows coincides with declining fish populations: Long-term trends in regulated and unregulated rivers
Casey A. Pennock, Lindsey Ann Bruckerhoff, Keith B. Gido, Adam L. Barkalow, Matthew J. Breen, Phaedra E. Budy, William W. Macfarlane, David L. Propst
2022, Freshwater Biology (67) 1631-1643
Dams can be operated to mimic components of the natural flow regime to minimise impacts on downstream ecosystems. However, infrastructure, societal needs, water management, and catchment runoff constrain which and when flow regime attributes can be mimicked.We compared fish assemblage responses, including native and non-native species, over 2 decades...
Exposure and effects of bioaccumulative contaminants of emerging concern in tree swallows nesting across the Laurentian Great Lakes
Christine M. Custer, Thomas W. Custer, Paul M. Dummer
2022, Report, Contaminants of emerging concern in the Great Lakes: Science to inform management practices for protecting the health and integrity of wildlife populations from adverse effects
Contaminants of emerging concern (CECs) are a loosely defined group of chemicals whose wide-spread usage or presence in the environment has occurred more recently or for which there has been relatively little research done until recently. Many of these CECs are not currently regulated. The National Toxicology Program within the...
Contaminants of emerging concern in the Great Lakes. GLRI integrated phase II group progress report
Stephanie L. Hummel, Gerald T. Ankley, Lyle Burgoon, Steven R. Corsi, Christine M. Custer, Kimani Kimbrough, Heiko L. Schoenfuss, Sarah A. Zack, Elizabeth A. Murphy
2022, Group Progress Report EPA/600/R-22/057
No abstract available....
Contaminants of emerging concern in the Great Lakes: Science to inform management practices for protecting the health and integrity of wildlife populations from adverse effects: GLRI action plan I, focus area 1, goal 5
Daniel L. Villeneuve, Steven R. Corsi, Christine M. Custer, W. Edward Johnson, Stephanie L. Hummel, Heiko L. Schoenfuss, Edward J. Perkins, Sarah A. Zack
2022, Group Progress Report EPA/600/R-22/057
Executive Summary: Under Action Plan I (2010-2014) of the Great Lakes Restoration Initiative (GLRI), Federal and Academic partners began an investigation of the presence and distribution of contaminants of emerging concern (CECs) in the Great Lakes and potential impacts on fish and wildlife. The term CECs is applied to a...
A Central Asia hydrologic monitoring dataset for food and water security applications in Afghanistan
Amy McNally, Jossy Jacob, Kristi Arsenault, Kimberly Slinski, Daniel Sarmiento, Andrew Hoell, Shahriar Pervez, James Rowland, Michael Budde, Sujay Kumar, Christa Peters-Lidard, James Verdin
2022, Earth System Science Data (14) 3115-3135
From the Hindu Kush mountains to the Registan Desert, Afghanistan is a diverse landscape where droughts, floods, conflict, and economic market accessibility pose challenges for agricultural livelihoods and food security. The ability to remotely monitor environmental conditions is critical to support decision making for humanitarian assistance. The Famine Early Warning...
Geomorphic survey of North Fork Eagle Creek, New Mexico, 2019
Alexander P. Graziano, Shaleene B. Chavarria
2022, Open-File Report 2022-1041
The 2012 Little Bear Fire resulted in substantial loss of vegetation in the Eagle Creek Basin, south-central New Mexico, which has been expected to cause a variety of hydrologic responses that could influence geomorphic change to North Fork Eagle Creek. To monitor geomorphic change, surveys of a downstream study reach...
Database of water quality and groundwater elevation within and surrounding the Lee Acres Landfill, New Mexico, 1985–2020
Erin L. Gray, Christina L. Ferguson
2022, Data Report 1154
This report describes the background information related to and the contents of the Lee Acres-Giant Bloomfield Refinery Database (LAGBRD), which is a compilation of monitoring data collected at the Lee Acres Landfill and the Giant Bloomfield Refinery near Farmington, New Mexico. LAGBRD includes monitoring data from as early as 1985,...
Groundwater quality of the Lucerne Valley groundwater basin, California
Joseph K. Fackrell
2022, Open-File Report 2022-1063
Anthropogenic activities, including groundwater withdrawals, return flow from irrigated agriculture, and treated wastewater-effluent disposal have the potential to affect groundwater quality in the Lucerne Valley groundwater basin, located in the southwest Mojave Desert. Questions regarding the current state and potential future of groundwater quality in this basin were addressed by...
Towards continuous streamflow monitoring with time-lapse cameras and deep learning
Amrita Gupta, Tony Chang, Jeffrey Walker, Benjamin Letcher
2022, Conference Paper, COMPASS '22: ACM SIGCAS/SIGCHI Conference on Computing and Sustainable Societies (COMPASS)
Effective water resources management depends on monitoring the volume of water flowing through streams and rivers, but collecting continuous discharge measurements using traditional streamflow gauges is prohibitively expensive. Time-lapse cameras offer a lowcost option for streamflow monitoring, but training models for predicting streamflow directly from images requires streamflow data to use as labels, which are often...
Ventilation systems in wetland plant species
Lars O. Bjorn, Beth A. Middleton, Mateja Germ, Alenka Gaberscik
2022, Diversity (14)
Molecular oxygen and carbon dioxide may be limited for aquatic plants, but they have various mechanisms for acquiring these gases from the atmosphere, soil, or metabolic processes. The most common adaptations of aquatic plants involve various aerenchymatic structures, which occur in various organs, and enable the throughflow of gases. These...
Effect of restoration on plant greenness and water use in relation to drought in the riparian corridor of the Colorado River delta
Pamela L. Nagler, Ibrahima Sall, Armando Barreto-Muñoz, Martha Gómez-Sapiens, Hamideh Nouri, Sattar Chavoshi Borujeni, Kamel Didan
2022, Journal of the American Water Resource Association (JAWRA) (58) 746-784
Revitalization of the Colorado River delta riparian corridor and increasing riparian plant greenness and water use may be accomplished by added water and restoration efforts to offset declines measured since 2000 by Landsat. We use the two-band Enhanced Vegetation Index (EVI2; a proxy for greenness) and evapotranspiration (ET, mm/day) using...
Depositional controls on detrital zircon provenance: An example from upper Cretaceous strata, southern Patagonia
Stephen C. Dobbs, Matthew A. Malkowski, Theresa Maude Schwartz, Zachary T. Sickmann, Stephan A. Graham
Claudia Ines Galli, editor(s)
2022, Frontiers in Earth Science (10)
Understanding how depositional environments within a sedimentary system redistribute and sequester sediment is critical for interpreting basin-scale provenance trends. However, sedimentary source-to-sink models commonly examine temporal changes and do not consider how variation in sedimentation processes across a dispersal pathway may result in contrasting provenance signatures. In this paper, we...
The past, present, and future of coral reef growth in the Florida Keys
Lauren T. Toth, Travis A. Courtney, Michael A. Colella, Selena Anne-Marie Johnson, Robert R. Ruzicka
2022, Global Change Biology (28) 5294-5309
Coral-reef degradation is driving global-scale reductions in reef-building capacity and the ecological, geological, and socioeconomic functions it supports. The persistence of those essential functions will depend on whether coral-reef management is able to rebalance the competing processes of reef accretion and erosion. Here, we reconstructed census-based...
