Skip to main content
U.S. flag

An official website of the United States government

Publications

Publications from USGS science centers throughout the Southeast Region.

Filter Total Items: 10351

USGS field activity 09FSH01 on the west Florida shelf, Gulf of Mexico, in February 2009 USGS field activity 09FSH01 on the west Florida shelf, Gulf of Mexico, in February 2009

From February 24 to 28, 2009, a cruise led by the U.S. Geological Survey (USGS) collected air and sea surface partial pressure of carbon dioxide (pCO2), pH, dissolved inorganic carbon (DIC), and total alkalinity (TA) data on the west Florida shelf. Approximately 1,800 data points were collected underway over a 1,300-kilometer (km) trackline using the Multiparameter Inorganic Carbon...
Authors
Lisa L. Robbins, Paul O. Knorr, Xuewu Liu, Robert H. Byrne, Ellen A. Raabe

Occupancy estimation and the closure assumption Occupancy estimation and the closure assumption

1. Recent advances in occupancy estimation that adjust for imperfect detection have provided substantial improvements over traditional approaches and are receiving considerable use in applied ecology. To estimate and adjust for detectability, occupancy modelling requires multiple surveys at a site and requires the assumption of 'closure' between surveys, i.e. no changes in occupancy...
Authors
Christopher T. Rota, Robert J. Fletcher, Robert M. Dorazio, Matthew G. Betts

ATM Coastal Topography-Mississippi, 2001 ATM Coastal Topography-Mississippi, 2001

These remotely sensed, geographically referenced elevation measurements of lidar-derived first-surface (FS) topography were produced collaboratively by the U.S. Geological Survey (USGS), Florida Integrated Science Center (FISC), St. Petersburg, FL, and the National Aeronautics and Space Administration (NASA), Wallops Flight Facility, VA. This project provides highly detailed and accurate...
Authors
Amar Nayegandhi, Xan Yates, John Brock, A. H. Sallenger, Emily S. Klipp, C. Wayne Wright

ATM Coastal Topography-Texas, 2001: UTM Zone 14 ATM Coastal Topography-Texas, 2001: UTM Zone 14

These remotely sensed, geographically referenced elevation measurements of lidar-derived first-surface (FS) topography were produced collaboratively by the U.S. Geological Survey (USGS), Florida Integrated Science Center (FISC), St. Petersburg, FL, and the National Aeronautics and Space Administration (NASA), Wallops Flight Facility, VA. This project provides highly detailed and accurate...
Authors
Emily S. Klipp, Amar Nayegandhi, John Brock, A. H. Sallenger, Jamie M. Bonisteel, Xan Yates, C. Wayne Wright

Control-Structure Ratings on the Fox River at McHenry and Algonquin, Illinois Control-Structure Ratings on the Fox River at McHenry and Algonquin, Illinois

The Illinois Department of Natural Resources-Office of Water Resources operates control structures on a reach of the Fox River in northeastern Illinois between McHenry and Algonquin. The structures maintain water levels in the river for flood-control and recreational purposes. This report documents flow ratings for hinged-crest gates, a broad-crested weir, sluice gates, and an ogee...
Authors
Timothy D. Straub, Gary P. Johnson, Jon Hortness, Joseph R. Parker

Regression models to estimate real-time concentrations of selected constituents in two tributaries to Lake Houston near Houston, Texas, 2005-07 Regression models to estimate real-time concentrations of selected constituents in two tributaries to Lake Houston near Houston, Texas, 2005-07

In December 2005, the U.S. Geological Survey in cooperation with the City of Houston, Texas, began collecting discrete water-quality samples for nutrients, total organic carbon, bacteria (total coliform and Escherichia coli), atrazine, and suspended sediment at two U.S. Geological Survey streamflow-gaging stations upstream from Lake Houston near Houston (08068500 Spring Creek near Spring...
Authors
Timothy D. Oden, William H. Asquith, Matthew S. Milburn

The 20th-century development and expansion of Louisiana shelf hypoxia, Gulf of Mexico The 20th-century development and expansion of Louisiana shelf hypoxia, Gulf of Mexico

Since systematic measurements of Louisiana continental-shelf waters were initiated in 1985, hypoxia (oxygen content
Authors
L.E. Osterman, R.Z. Poore, P.W. Swarzenski, D.B. Senn, Steven F. DiMarco

Low-flow frequency and flow duration of selected South Carolina streams in the Pee Dee River basin through March 2007 Low-flow frequency and flow duration of selected South Carolina streams in the Pee Dee River basin through March 2007

Part of the mission of the South Carolina Department of Health and Environmental Control and the South Carolina Department of Natural Resources is to protect and preserve South Carolina's water resources. Doing so requires an ongoing understanding of streamflow characteristics of the rivers and streams in South Carolina. A particular need is information concerning the low-flow...
Authors
Toby D. Feaster, Wladmir B. Guimaraes

Foraminiferal assemblages in Biscayne Bay, Florida, USA: Responses to urban and agricultural influence in a subtropical estuary Foraminiferal assemblages in Biscayne Bay, Florida, USA: Responses to urban and agricultural influence in a subtropical estuary

This study assessed foraminiferal assemblages in Biscayne Bay, Florida, a heavily utilized estuary, interpreting changes over the past 65 years and providing a baseline for future comparisons. Analyses of foraminiferal data at the genus level revealed three distinct biotopes. The assemblage from the northern bay was characterized by stress-tolerant taxa, especially Ammonia, present in...
Authors
E. A. Carnahan, A.M. Hoare, P. Hallock, B. H. Lidz, C. D. Reich

Invasive species Invasive species

No abstract available.
Authors
Beth A. Middleton

Coastal Louisiana ecosystem assessment and restoration program: The role of ecosystem forecasting in evaluating restoration planning in the Mississippi River Deltaic Plain Coastal Louisiana ecosystem assessment and restoration program: The role of ecosystem forecasting in evaluating restoration planning in the Mississippi River Deltaic Plain

The development of ecosystem management plans to restore and rehabilitate natural resources requires an understanding of how specific ecological mechanisms regulate the structure and function of ecosystems. To achieve restoration goals, comprehensive plans and engineering designs must effectively change environmental drivers at the regional level to reduce stress conditions at the local...
Authors
Robert Twilley, Brady Couvillion, Imtiaz Hossain, Carola Kaiser, Alaina Owens, Gregory D. Steyer, Jenneke M. Visser

The dynamics of coastal models The dynamics of coastal models

Coastal basins are defined as estuaries, lagoons, and embayments. This book deals with the science of coastal basins using simple models, many of which are presented in either analytical form or Microsoft Excel or MATLAB. The book introduces simple hydrodynamics and its applications, from the use of simple box and one-dimensional models to flow over coral reefs. The book also emphasizes...
Authors
Clifford J. Hearn
Was this page helpful?