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16437 results.

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Page 18, results 426 - 450

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Flexible migration and habitat use strategies of an endangered waterbird during hydrological drought
Aaron T. Pearse, Andrew J. Caven, David M. Baasch, Mark T. Bidwell, John A Conkin, David A. Brandt
2024, Conservation Science and Practice (6)
Wildlife species confront threats from climate and land use change, exacerbating the influence of extreme climatic events on populations and biodiversity. Migratory waterbirds are especially vulnerable to hydrological drought via reduced availability of surface water habitats. We assessed how whooping cranes (Grus americana) modified...
A hierarchical model for eDNA fate and transport dynamics accommodating low concentration samples
Ben Augustine, Patrick Ross Hutchins, Devin Nicole Jones-Slobodian, Jacob R. Williams, Eric Leinonen, Adam Sepulveda
2024, Preprint
Environmental DNA (eDNA) sampling is an increasingly important tool for answering ecological questions and informing aquatic species management; however, several factors currently limit the reliability of ecological inference from eDNA sampling. Two particular challenges are 1) determining species source location(s) and 2) accurately and precisely measuring low concentration eDNA samples...
Groundwater sustainability and land subsidence in California’s Central Valley
Claudia C. Faunt, Jonathan A. Traum, Scott E. Boyce, Whitney A. Seymour, Elizabeth Rae Jachens, Justin T. Brandt, Michelle Sneed, Sandra Bond, Marina Marcelli
2024, Water (16)
The Central Valley of California is one of the most prolific agricultural regions in the world. Agriculture is reliant on the conjunctive use of surface-water and groundwater. The lack of available surface-water and land-use changes have led to pumping-induced groundwater-level and storage declines, land subsidence, changes to streamflow and...
Evaluation of streamflow predictions from LSTM models in water- and energy-limited regions in the United States
Kul Bikram Khand, Gabriel B. Senay
2024, Machine Learning with Applications (16)
The application of Long Short-Term Memory (LSTM) models for streamflow predictions has been an area of rapid development, supported by advancements in computing technology, increasing availability of spatiotemporal data, and availability of historical data that allows for training data-driven LSTM models....
Evaluating seawater intrusion forecast uncertainty under climate change in the Pajaro Valley, California
Marisa M. Earll, Wesley R. Henson, Brian Lockwood, Scott E. Boyce
2024, Journal of Hydrology (636)
Climate change and climate variability impacts such as rising sea levels have the potential to exacerbate seawater intrusion and the strain on coastal freshwater resources in already stressed groundwater basins such as those in the Pajaro Valley groundwater basin, California. Regional hydrologic models are often coupled with climate projections to...
Hydrologic study of green infrastructure in poorly drained urbanized soils at RecoveryPark, Detroit, Michigan, 2014–21
Ralph J. Haefner, Christopher J. Hoard, William Shuster
2024, Scientific Investigations Report 2024-5018
Uncontrolled stormwater runoff volume is a legacy stressor on sewer-system capacity that is further compromised by the effects of aging infrastructure. Green stormwater infrastructure (GSI) has been used in a variety of designs and configurations (for example, bioretention) with the goal of increasing evapotranspiration and infiltration in the local water...
Peak streamflow trends in Missouri and their relation to changes in climate, water years 1921–2020
Mackenzie K. Marti, David C. Heimann
2024, Scientific Investigations Report 2023-5064-F
This report characterizes changes in peak streamflow in Missouri and the relation of these changes to climatic variability, and provides a foundation for future studies that can address nonstationarity in peak-streamflow frequency analysis in Missouri. Records of annual peak and daily streamflow at streamgages and gridded monthly climatic data (observed...
Basin-scale responses of groundwater-resource quality to drought and recovery, San Joaquin Valley, California
Zeno F. Levy, Bryant C. Jurgens, Kirsten Faulkner, Jennifer S. Harkness, Miranda S. Fram
2024, Hydrological Processes (38)
Groundwater-resource quality is assumed to be less responsive to drought compared to that of surface water due to relatively long transit times of recharge to drinking-supply wells. Here, we evidence dynamic perturbations in aquifer pressure dynamics during drought and subsequent recovery periods cause dramatic...
Increasing seasonal variation in the extent of rivers and lakes from 1984 to 2022
Bjorn Nyberg, Roger Sayre, Elco Luijendijk
2024, Hydrology and Earth System Sciences (28) 1653-1663
Knowledge of the spatial and temporal distribution of surface water is important for water resource management, flood risk assessment, monitoring ecosystem health, constraining estimates of biogeochemical cycles and understanding our climate. While global-scale spatiotemporal change detection of surface water has significantly improved in recent...
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,...
Eutrophication saturates surface elevation change potential in tidal mangrove forests
Jeremy R. Conrad, Ken Krauss, Brian W. Benscoter, Ilka C. Feller, Nicole Cormier, Darren Johnson
2024, Estuaries and Coasts (47) 1814-1827
Coastal mangrove forests are at risk of being submerged due to sea-level rise (SLR). However, mangroves have persisted with changing sea levels due to a variety of biotic and physical feedback mechanisms that allow them to gain and maintain relative soil surface elevation. Therefore, mangrove’s resilience...
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...
Paleogene Earth perturbations in the US Atlantic Coastal Plain (PEP-US): Coring transects of hyperthermals to understand past carbon injections and ecosystem responses
Marci M. Robinson, Kenneth Miller, Tali Babila, Tim J Bralower, Jim Browning, Marlow Cramwinckel, Monika Doubrawa, Gavin L Foster, Megan Fung, Sean D. Kinney, Maria Makarova, Pete McLaughlin, Paul Pearson, Ursula Rohl, Morgan Schaller, Jean Self-Trail, Appy Sluijs, Thomas Westerhold, James R. Wright, James Zachos
2024, Scientific Drilling (33) 47-65
The release of over 4500 Gt (gigatonnes) of carbon at the Paleocene–Eocene boundary provides the closest geological analog to modern anthropogenic CO2 emissions. The cause(s) of and responses to the resulting Paleocene–Eocene Thermal Maximum (PETM) and attendant carbon isotopic excursion (CIE) remain enigmatic and intriguing...
Assessing spatial variability of nutrients, phytoplankton, and related water-quality constituents in the California Sacramento–San Joaquin Delta at the landscape scale—2018 high resolution mapping surveys
Brian A. Bergamaschi, Tamara E. C. Kraus, Bryan D. Downing, Elizabeth B. Stumpner, Katy O’Donnell, Jeffrey A. Hansen, Jeniffer Soto Perez, Emily T. Richardson, Angela M. Hansen, Alan Gelber
2024, Scientific Investigations Report 2023-5060
Executive Summary This study examined the abundance and distribution of nutrients and phytoplankton in the tidal aquatic environments of the Sacramento–San Joaquin Delta (Delta) and Suisun Bay, comprising three spatial surveys conducted in May, July, and October of 2018 that used continuous underway high frequency sampling and measurements onboard a...
Triangle Area Water Supply Monitoring Project, North Carolina—Overview of hydrologic and water-quality monitoring activities and data quality assurance
J.C. Diaz, Rosemary Margaret Fanelli
2024, Open-File Report 2024-1003
Surface-water supplies are important sources of drinking water for residents in the Triangle area of North Carolina, which is located within the upper Cape Fear and Neuse River Basins. Since 1988, the U.S. Geological Survey and a consortium of local governments have participated in a cooperative effort, known as the...
Clumped isotopes record a glacial-interglacial shift in seasonality of soil carbonate accumulation in the San Luis Valley, southern Rocky Mountains, USA
Adam M. Hudson, Julia R. Kelson, James B. Paces, Chester A. Ruleman, Katharine W. Huntington, Andrew J. Schauer
2024, Geochemistry, Geophysics, Geosystems (25)
Clumped isotope paleothermometry using pedogenic carbonates is a powerful tool for investigating past climate changes. However, location-specific seasonal patterns of precipitation and soil moisture cause systematic biases in the temperatures they record, hampering comparison of data across large areas or differing climate states. To account for biases, more systematic studies...
Evaluation of the characteristics, discharge, and water quality of selected springs at Fort Irwin National Training Center, San Bernardino County, California
Jill N. Densmore, Drew C. Thayer, Meghan C. Dick, Peter W. Swarzenski, Lyndsay B. Ball, Celia Z. Rosecrans, Cordell Johnson
2024, Scientific Investigations Report 2023-5142
Eight springs and seeps at Fort Irwin National Training Center were described and categorized by their general characteristics, discharge, geophysical properties, and water quality between 2015 and 2017. The data collected establish a modern (2017) baseline of hydrologic conditions at the springs. Two types of springs were identified: (1) precipitation-fed...
A comparison of contemporary and historical hydrology and water quality in the foothills and coastal plain of the Arctic National Wildlife Refuge, Arctic Slope, northern Alaska
Joshua C. Koch, Heather Best, Carson Baughman, Charles Couvillion, Michael P. Carey, Jeff Conaway
2024, Scientific Investigations Report 2024-5008
The Arctic National Wildlife Refuge is a unique landscape in northern Alaska with limited water resources, substantial biodiversity of rare and threatened species, as well as oil and gas resources. The region has unique hydrology related to perennial springs, and the formation of large aufeis fields—sheets of ice that grow...
The Metzger marsh restoration: A vegetation-centric look after 27 years
Douglas A. Wilcox, Kurt P. Kowalski, Alexandra A Bozimowski
2024, Journal of Great Lakes Research (50)
We investigated wetland vegetation before, during, and after dike construction at the Metzger Marsh project in western Lake Erie, which was designed to restore a 300-ha wetland that had been degraded following the loss of a protective barrier beach. A dike was constructed in 1995 to replace the function of...
Groundwater model of the Harney Basin, southeastern Oregon
Stephen B. Gingerich, Darrick E. Boschmann, Gerald H. Grondin, Halley J Schibel
2024, Scientific Investigations Report 2024-5017
Groundwater development, mainly for large-scale irrigation, has increased substantially in the Harney Basin of southeastern Oregon since 2010. Concurrently, some areas of the basin experienced groundwater-level declines of more than 100 feet, and some shallow wells have gone dry. The Oregon Water Resources Department has limited new groundwater development in...
Characterizing future streamflows in Massachusetts using stochastic modeling—A pilot study
Scott A. Olson, Ghazal Shabestanipour, Jonathan Lamontagne, Scott Steinschneider
2024, Scientific Investigations Report 2023-5134
Communities throughout Massachusetts face the potential effects of climate change, ranging from more extreme rainfall to more pronounced and frequent droughts. Understanding the effects of climate change on hydrology is important to State and community officials to evaluate the potential effects on infrastructure and water systems. To better understand the...
Spatial extent drives patterns of relative climate change sensitivity for freshwater fishes of the United States
Samuel C. Silknetter, Abigail Benson, Jennifer A. Smith, Meryl C. Mims
2024, Ecosphere (15)
Assessing the sensitivity of freshwater species to climate change is an essential component of prioritizing conservation efforts for threatened freshwater ecosystems and organisms. Sensitivity to climate change can be systematically evaluated for multiple species using geographic attributes such as range size and climate niche...
StreamStats—A quarter century of delivering web-based geospatial and hydrologic information to the public, and lessons learned
Kernell G. Ries III, Peter A. Steeves, Peter M. McCarthy
2024, Circular 1514
StreamStats is a U.S. Geological Survey (USGS) web application that provides streamflow statistics, such as the 1-percent annual exceedance probability peak flow, the mean flow, and the 7-day, 10-year low flow, to the public through a map-based user interface. These statistics are used in many ways, such as in the...
Chemistry, growth, and fate of the unique, short-lived (2019–2020) water lake at the summit of Kīlauea Volcano, Hawaii
Patricia A. Nadeau, Shaul Hurwitz, Sara Peek, Allan Lerner, Edward F. Younger, Matthew R. Patrick, David Damby, R. Blaine McCleskey, Peter J. Kelly
2024, Geochemistry, Geophysics, Geosystems (25)
Less than a year after the 2018 Kīlauea caldera collapse and eruption, water appeared in newly deepened Halemaʻumaʻu crater. The lake—unprecedented in the written record—grew to a depth of ∼50 m before lava from the December 2020 eruption boiled it away. Surface water heightened concerns of potential phreatic...
Geologic framework and hydrostratigraphy of the Edwards and Trinity aquifers within parts of Bandera and Kendall Counties, Texas
Allan K. Clark, Robert R. Morris, Alexis P. Lamberts
2024, Scientific Investigations Map 3518
The karstic Edwards and Trinity aquifers are classified as major sources of water in south-central Texas by the Texas Water Development Board. During 2019–23 the U.S. Geological Survey, in cooperation with the Edwards Aquifer Authority, mapped and described the geology and hydrostratigraphy of the rocks composing the Edwards and Trinity...