Publications
Read publications and other informational products to learn more about USGS science occurring in the Mississippi Basin.
Filter Total Items: 5580
Low streamflows in Massachusetts: Variability over space and time and relations with climatic and basin variables Low streamflows in Massachusetts: Variability over space and time and relations with climatic and basin variables
Streamflows in Massachusetts have set record lows in recent years despite generally wetter conditions than during the drought of the 1960s, and the reasons for this are not known. To analyse potential drivers of low streamflows in Massachusetts, six low-flow metrics were computed at 107 streamgages. These metrics represent low-flow magnitude, magnitude normalized to median flows, and...
Authors
Catherine A. Chamberlin, Glenn Hodgkins
Groundwater drought in the United States: Spatial and temporal variability Groundwater drought in the United States: Spatial and temporal variability
Many communities and ecosystems in the United States that are dependent on groundwater are potentially adversely affected by groundwater drought. We computed yearly groundwater-drought metrics and mean groundwater levels at well locations across the conterminous United States (CONUS), using data from wells and remotely sensed and modeled Gravity Recovery and Climate Experiment Drought...
Authors
Glenn Hodgkins, Caelan Simeone, Melissa A. Lombard, Todd Caldwell, John C. Hammond, Michael Wieczorek, Robert W. Dudley
Hyperspectral retrieval of phytoplankton absorption and community composition from NASA’s PACE-OCI in estuarine–coastal waters using a hybrid framework combining mixture-of-experts and Variational Autoencoder Hyperspectral retrieval of phytoplankton absorption and community composition from NASA’s PACE-OCI in estuarine–coastal waters using a hybrid framework combining mixture-of-experts and Variational Autoencoder
Retrieving the phytoplankton absorption coefficient (aphy; m−1), one of the most spectrally rich inherent optical properties, remains challenging in optically complex coastal waters worldwide. Leveraging NASA's new hyperspectral mission, PACE, we introduce Hyper-MoE-VAE, a deep-learning architecture that integrates a Mixture-of-Experts with a Variational Autoencoder to retrieve high...
Authors
Xingyu Bai, Bingqing Liu, Jiang Li, Yuanheng Xiong, Eurico J. D'Sa, Melissa Millman Baustian, Xiaodong Zhang, Brice K. Grunert, Chisom O. Emeghiebo, Cassie Glasspie, Xu Yuan
Short-term estuarine phytoplankton dynamics in response to hurricanes along the Gulf Coast of America: A Variational Autoencoder (VAE) approach with satellite and bio-optical observations Short-term estuarine phytoplankton dynamics in response to hurricanes along the Gulf Coast of America: A Variational Autoencoder (VAE) approach with satellite and bio-optical observations
Hurricanes drive diverse estuarine phytoplankton responses and can trigger cascading ecological and physicochemical impacts. Capturing these short-term dynamics requires high spatiotemporal resolution. Here, we applied a globally-applicable coastal ocean color algorithm, Variational Autoencoder (VAE), to Sentinel-2 MSI imagery for chlorophyll-a (Chl-a) estimation and validated its strong
Authors
Jiang Li, Bingqing Liu, Jiadong Lou, Xu Yuan, Eurico J. D'Sa, Melissa Millman Baustian, Megan La Peyre, Angelina Freeman, Vitor S. Martins, Emad Habib
Erosion potential and flood vulnerability of streams and stream crossings at Acadia National Park, Maine Erosion potential and flood vulnerability of streams and stream crossings at Acadia National Park, Maine
Acadia National Park has had increases in the frequency and magnitude of precipitation in recent years, leading to increased flood flows, stream erosion, and costly infrastructure damage. To improve infrastructure management in a changing climate, the U.S. Geological Survey, in cooperation with the National Park Service, has developed multiple datasets that can help natural resource...
Authors
Ian P. Armstrong, Meghan A. McCallister, Kristina M. Hyslop, Adam J. Benthem
Chronic exposure to waterborne nickel significantly reduced growth of juvenile crayfish (Faxonius virilis) Chronic exposure to waterborne nickel significantly reduced growth of juvenile crayfish (Faxonius virilis)
Crayfish are critical functional components of aquatic ecosystems. Previous research has documented adverse effects of mineral extraction on crayfish. Here, we characterize potential risks of mining-derived waterborne nickel (Ni) to crayfish by documenting the effects of dissolved Ni on growth and food consumption of juvenile virile crayfish (Faxonius virilis) in a 28-day chronic...
Authors
Adrian Parr Moore, Mark L. Wildhaber, Zachary D Beaman, Kendell Ray Bennett, Karlie K Ditter, Danielle M. Cleveland, J. Blanton, Tyler J. Grant
Future aquatic invaders of the Northeast U.S.: How climate change, human vectors, and natural history could bring southern and western species north Future aquatic invaders of the Northeast U.S.: How climate change, human vectors, and natural history could bring southern and western species north
As environmental conditions change, land managers are increasingly concerned about the potential for new aquatic invasive species to move into their jurisdictions. Because managers may have limited resources, detecting invasive species early is important as prevention is more effective and less costly than ongoing mitigation of established populations. Tools built to assist early...
Authors
Catherine S. Jarnevich, Peder Engelstad, Shelby K. LeClare, Richard D. Inman, Ian A. Pfingsten, Wesley M. Daniel
Effects of groundwater withdrawals for water bottling and municipal use, Wards Brook Valley, Maine and New Hampshire Effects of groundwater withdrawals for water bottling and municipal use, Wards Brook Valley, Maine and New Hampshire
Hydrologic models for the Wards Brook valley near Fryeburg, Maine were developed for historical (2016 – 2021) and hypothetical future conditions (2046 – 2065 and 2080 – 2099) to understand the effects of groundwater withdrawals for bottled water and municipal use on hydrologic conditions (stream base flows and groundwater levels). Analyses showed that the simulated base flows in Wards...
Authors
John R Mullaney, Janet R. Barclay, Jennifer S. Stanton, Carl S Carlson, Madeleine Holland
Ecogeomorphic feedbacks influence elevation change across microtidal wetland settings of coastal Louisiana Ecogeomorphic feedbacks influence elevation change across microtidal wetland settings of coastal Louisiana
No abstract available.
Authors
Carol Wilson, Tracy Quirk, Donald R. Cahoon, Gregg A. Snedden, Leigh Anne Sharp
Thiaminase I activity is high in grass and silver carp, but negligible in bighead and black carp Thiaminase I activity is high in grass and silver carp, but negligible in bighead and black carp
Bighead carp (Hypophthalmichthys nobilis), black carp (Mylopharyngodon piceus), grass carp (Ctenopharyngodon idella), and silver carp (H. molitrix) have spurred wide concern of potential ecosystem disruption as they threaten to invade the Laurentian Great Lakes. Besides competition for resources, carp may also have disadvantageous nutrition for predators. One biochemical aspect to...
Authors
Freya Elizabeth Rowland, Curtis G. Byrd, Patrick Kroboth
Estimating the magnitude and frequency of floods at ungaged locations on urban streams in Tennessee and parts of Alabama, Georgia, Mississippi, North Carolina, and South Carolina, using data through the 2022 water year Estimating the magnitude and frequency of floods at ungaged locations on urban streams in Tennessee and parts of Alabama, Georgia, Mississippi, North Carolina, and South Carolina, using data through the 2022 water year
In 2024, the U.S. Geological Survey, in cooperation with the Tennessee Department of Transportation, updated the methods for predicting the magnitude and frequency of floods at ungaged locations on streams in urban areas in Tennessee. The study area included 136 streamgages in urban areas in Tennessee, Mississippi, Alabama, Georgia, South Carolina, and North Carolina that had at least 10...
Authors
Daniel M. Wagner, David E. Ladd
Drinking water arsenic, urinary arsenic biomarkers, and cognitive impairment in the REGARDS study Drinking water arsenic, urinary arsenic biomarkers, and cognitive impairment in the REGARDS study
BackgroundThere are several pathways by which inorganic arsenic (iAs) exposure can affect cognition among adults. Few epidemiologic studies evaluate iAs in water and inter-individual differences in urinary arsenic toxicokinetics. We aimed to estimate the association between individual-level urinary arsenic biomarkers, county-level iAs in drinking water, and cognitive impairment in a...
Authors
Meghan Angley, Yijia Zhang, Anne E. Nigra, Melissa A. Lombard, Matthew O. Gribble, Liping Lu, Frederick W. Unverzagt, Leslie A. McClure, Suzanne E. Judd, Mary Cushman, John Brockman, Ka Kahe