Publications
Publications
Here you will find publications, reports and articles produced by Lower Mississippi-Gulf scientists. For a comprehensive listing of all USGS publications please click the button below.
Filter Total Items: 465
A guidebook to spatial datasets for conservation planning under climate change in the Pacific Northwest A guidebook to spatial datasets for conservation planning under climate change in the Pacific Northwest
This guidebook provides user-friendly overviews of a variety of spatial datasets relevant to conservation and management of natural resources in the face of climate change in the Pacific Northwest, United States. Each guidebook chapter was created using a standardized template to summarize a spatial dataset or a group of closely related datasets. Datasets were selected according to...
Authors
Jennifer M. Cartwright, Travis Belote, Kyle W. Blasch, Steve Campbell, Jeanne C. Chambers, Raymond J. Davis, Solomon Dobrowski, Jason B. Dunham, Diana Gergel, Daniel Isaak, Kristin Jaeger, Meade Krosby, Jesse Langdon, Joshua J. Lawler, Caitlin E. Littlefield, Charles H. Luce, Jeremy D Maestas, Anthony Martinez, Arjan J.H. Meddens, Julia Michalak, Sean A. Parks, Wendy Peterman, Ken Popper, Chris Ringo, Roy Sando, Michael Schindel, Diana Stralberg, David M. Theobald, Nathan Walker, Chad Wilsey, Zhiqiang Yang, Andrew Yost
Using NASA Earth observations and Google Earth Engine to map winter cover crop conservation performance in the Chesapeake Bay watershed Using NASA Earth observations and Google Earth Engine to map winter cover crop conservation performance in the Chesapeake Bay watershed
Winter cover crops such as barley, rye, and wheat help to improve soil structure by increasing porosity, aggregate stability, and organic matter, while reducing the loss of agricultural nutrients and sediments into waterways. The environmental performance of cover crops is affected by choice of species, planting date, planting method, nutrient inputs, temperature, and precipitation. The...
Authors
Alison Thieme, Sunita Yadav, Perry C. Oddo, John M. Fitz, Sean McCartney, LeeAnn King, Jason Keppler, Gregory W. McCarty, W. Dean Hively
Methods to quality assure, plot, summarize, interpolate, and extend groundwater-level information—Examples for the Mississippi River Valley alluvial aquifer Methods to quality assure, plot, summarize, interpolate, and extend groundwater-level information—Examples for the Mississippi River Valley alluvial aquifer
Large-scale computational investigations of groundwater levels are proposed to accelerate science delivery through a workflow spanning database assembly, statistics, and information synthesis and packaging. A water-availability study of the Mississippi River alluvial plain, and particularly the Mississippi River Valley alluvial aquifer (MRVA), is ongoing. Software (visGWDBmrva) has been...
Authors
William H. Asquith, Ronald C. Seanor, Virginia L. McGuire, Wade Kress
Characterizing the diverse hydrogeology underlying rivers and estuaries using new floating transient electromagnetic methodology Characterizing the diverse hydrogeology underlying rivers and estuaries using new floating transient electromagnetic methodology
The hydrogeology below large surface water features such as rivers and estuaries is universally under-informed at the long reach to basin scales (tens of km+). This challenge inhibits the accurate modeling of fresh/saline groundwater interfaces and groundwater/surface water exchange patterns at management-relevant spatial extents. Here we introduce a towed, floating transient...
Authors
John W. Lane, Martin A. Briggs, PK Maurya, Eric A. White, JB Pedersen, Esben Auken, Neil C. Terry, Burke J. Minsley, Wade Kress, Denis R. LeBlanc, Ryan F. Adams, Carole D. Johnson
Oases of the future? Evaluating springs as potential hydrologic refugia in drying climates Oases of the future? Evaluating springs as potential hydrologic refugia in drying climates
Springs in water-limited landscapes are biodiversity hotspots and keystone ecosystems, disproportionately influencing surrounding landscapes despite their often small areas. Some springs served as evolutionary refugia during previous climate drying, supporting relict species in isolated habitats. Understanding whether springs will provide hydrologic refugia from future climate change is...
Authors
Jennifer M. Cartwright, Kathleen A. Dwire, Zach Freed, Samantha J. Hammer, Blair McLaughlin, Louise W. Misztal, Edward J. Schenk, John R. Spencer, Abraham E. Springer, Lawrence E. Stevens
Combining physical and species‐based approaches improves refugia identification Combining physical and species‐based approaches improves refugia identification
Climate‐change refugia – locations likely to facilitate species persistence under climate change – are increasingly important components of conservation planning. Recent approaches for identifying refugia at broad scales include identifying regions that are projected to experience less severe changes (climatic exposure), that contain a diversity of physical and topographic features...
Authors
Julia Michalak, Diana Stralberg, Jennifer M. Cartwright, Joshua J. Lawler
Disturbance refugia within mosaics of forest fire, drought, and insect outbreaks Disturbance refugia within mosaics of forest fire, drought, and insect outbreaks
Disturbance refugia – locations that experience less severe or frequent disturbances than the surrounding landscape – provide a framework to highlight not only where and why these biological legacies persist as adjacent areas change but also the value of those legacies in sustaining biodiversity. Recent studies of disturbance refugia in forest ecosystems have focused primarily on fire...
Authors
Meg A. Krawchuk, Garrett Meigs, Jennifer M. Cartwright, Jonathan D. Coop, Raymond J. Davis, Andres Holz, Crystal A. Kolden, Arjan J.H. Meddens
Estimating the effect of winter cover crops on nitrogen leaching using cost-share enrollment data, satellite remote sensing, and Soil and Water Assessment Tool (SWAT) modeling Estimating the effect of winter cover crops on nitrogen leaching using cost-share enrollment data, satellite remote sensing, and Soil and Water Assessment Tool (SWAT) modeling
This study employed a novel combination of data (winter cover crop cost-share enrollment records, satellite remote sensing of wintertime vegetation, and results of Soil and Water Assessment Tool (SWAT) water quality simulations) to estimate the environmental performance of winter cover crops (WCC) at the watershed scale, from 2008 through 2017, within the Tuckahoe sub-watershed of the...
Authors
W. Dean Hively, Sangchul Lee, Ali M. Sadeghi, Gregory W. McCarty, Brian T. Lamb, Alexander M. Soroka, Jason Keppler, In-Young Yeo, Glenn E. Moglen
Species richness responses to water withdrawal scenarios and minimum flow levels: Evaluating presumptive standards in the Tennessee and Cumberland River basins Species richness responses to water withdrawal scenarios and minimum flow levels: Evaluating presumptive standards in the Tennessee and Cumberland River basins
Water resource managers are challenged to balance growing water demand with protecting aquatic ecosystems and biodiversity. Management decisions can benefit from improved understanding of water withdrawal impacts on hydrologic regimes and ecological assemblages. This study used Ecological Limit Functions for fish groups within the Tennessee and Cumberland river basins to predict species...
Authors
Lucas Driver, Jennifer M. Cartwright, Rodney Knight, William J. Wolfe
Microbiology and oxidation-reduction geochemistry of the water-table and Memphis aquifers in the Allen well field, Shelby County, Tennessee Microbiology and oxidation-reduction geochemistry of the water-table and Memphis aquifers in the Allen well field, Shelby County, Tennessee
The shallow and Memphis aquifers in Shelby County, Tennessee, are valuable natural resources that are used for domestic, public-supply, and agricultural water use. The Memphis aquifer is the primary source for public supply in West Tennessee and provides 170 to 175 million gallons of water per day for more than 900,000 people (Robinson, 2018). The shallow aquifer includes the unconfined...
Authors
Thomas D. Byl, Mike Bradley
Magnitude and frequency of floods in Alabama, 2015 Magnitude and frequency of floods in Alabama, 2015
To improve flood-frequency estimates at rural streams in Alabama, annual exceedance probability flows at gaged locations and regional regression equations used to estimate annual exceedance probability flows at ungaged locations were developed by using current geospatial data, new analytical methods, and annual peak-flow data through September 2015 at 242 streamgages in Alabama and...
Authors
Brandon T. Anderson
A within-season approach for detecting early crop stage of corn and soybean using high temporal and spatial resolution imagery A within-season approach for detecting early crop stage of corn and soybean using high temporal and spatial resolution imagery
Crop emergence is a critical stage for crop development and crop growth modeling. Mapping crop emergence using remote sensing data is challenging. Previous remote sensing phenology algorithms showed that crop stages could be detected around the V3-V4 (3 to 4 established leaves) vegetative stage. Traditional approaches have a strong assumption regarding the temporal evolution of plant...
Authors
Feng Gao, Martha Anderson, Craig S. T. Daughtry, Arnon Karnieli, W. Dean Hively, William P. Kustas