Unified Interior Regions

Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands)

Regions L2 Landing Page Tabs

Filter Total Items: 366
Date published: February 12, 2019
Status: Active

Reference and Potential Evapotranspiration

Evapotranspiration can be computed as reference, potential, or actual evapotranspiration.   Reference evapotranspiration is that from a grass surface that is well-watered.  Potential evapotranspiration is that from a surface that has unlimited water (such as a lake). 

Reference and potential evapotranspiration are computed at a 2-kilometer spatial resolution and daily timestep for the...

Date published: February 11, 2019
Status: Completed

Characteristics of flow through the Franklin lock and their effects on downstream water-quality

The USGS completed a study to investigate correlations between flow rates and volumes through the W.P. Franklin Lock and Dam and water-quality constituents inside the J.N. "Ding" Darling National Wildlife Refuge from March 2010 to December 2013. Scientific Investigations Report 2016-5033, authored by Amanda Booth, Lars Soderqvist, and Travis Knight, summarizes the results of the study. A...

Date published: February 8, 2019
Status: Active

Geographic Information Systems (GIS)

Maps are an integral part of water-science activities and the Caribbean Florida Water Science Center utilizes and produces maps for all types of hydrologic projects and in information dissemination. Maps are also helpful for providing the user with a geographical reference to our water information. 

Date published: February 8, 2019
Status: Active

Water-Quality for Florida

The U.S. Geological Survey provides scientific and technical expertise, leadership, and coordination in addressing issues concerning the quality of the Nation's water resources. Our scientists:

  • Collect, analyze, and interpret water-quality data,
  • Engage in field and laboratory research and methods development,
  • Work with local, State, and Federal agencies and the
  • ...
Contacts: Amanda Booth
Date published: February 8, 2019
Status: Active

Water Quality for Puerto Rico

The U.S. Geological Survey operates and maintains approximately 7,300 streamgages nationwide, 194 in Puerto Rico, which provide long-term, accurate, and unbiased information that meets the needs of many diverse users. The USGS collects the streamflow data needed by Federal, State, and local agencies for planning and operating water-resources projects and regulatory programs.

The links...

Date published: February 7, 2019
Status: Active

Hurricanes

Preventing flood hazards, such as hurricane-induced tidal surge, from becoming human disasters requires an understanding of the relative risks floods pose to specific communities and knowledge of the processes by which flood waters rise, converge, and abate. Historically, hurricane-induced tidal surge has been documented through measurement of high-water marks left on structures or vegetation...

Contacts: Wesley W Stone
Date published: February 7, 2019
Status: Completed

Effects of hydrologic system alterations on salinity in the Biscayne aquifer in Broward Co.

To address concerns about the effects of water-resource management practices and rising sea level on saltwater intrusion, the U.S. Geological Survey in cooperation with the Broward County Environmental Planning and Community Resilience Division, initiated a study to examine causes of saltwater intrusion and predict the effects of future alterations to the hydrologic system on salinity...

Date published: February 7, 2019
Status: Completed

Mapping water levels in the Biscayne aquifer

To help inform decisions necessary for urban planning and development, Miami-Dade County Department of Regulatory and Economic Resources partnered with USGS to produce statistical analyses and maps representing mean, high, and low water-level conditions in the surface water and groundwater of Miami-Dade County.

Date published: February 6, 2019
Status: Completed

Dam Failure Analysis for the Lago El Guineo Dam, Puerto Rico

The USGS Scientific Investigations Report 2016-5070 describing a hydrologic and hydraulic study to assess the potential hazard to human life and property associated with the hypothetical failure of the Lago El Guineo Dam was completed by the USGS in cooperation with the Puerto Rico Electric Power Authority. 

Date published: February 5, 2019
Status: Active

Evapotranspiration and Carbon-Flux Network

The U.S. Geological Survey Florida Evapotranspiration Network is a network of 15 data collection sites representing various land cover types, which provide long-term, accurate, and unbiased information that meets the needs of many diverse users. The USGS collects the evapotranspiration data needed by Federal, State, and local agencies for planning and operating water-resources projects and...

Date published: February 4, 2019
Status: Completed

CFWSC Science Highlights

The purpose of this section is to draw your attention to important information that the CFWSC are conducting in your city.   

Date published: January 28, 2019
Status: Active

Hurricane Michael - Forecast and Documentation of Coastal Change

Hurricane Michael coastal change forecast and pre- and post-storm photos documenting coastal change.

Contacts: Kara Doran
Filter Total Items: 67
Date published: March 10, 2016

Science Data Integration and Delivery

Consistent synthesis, integration, storage, and availability of fundamental data is critical to meeting the needs of USGS Science. We develop databases for hydrography, topography, invasive species, water resources, and many other datasets utilized by resource managers.

Date published: March 9, 2016

Science Data Integration and Delivery

Consistent synthesis, integration, storage, and availability of fundamental data is critical to meeting the needs of USGS Science. We develop databases for hydrography, topography, invasive species, water resources, and many other datasets utilized by resource managers. Our National Geospatial Program uses partnerships and data collection through a network assigned to the Southeast Region...

Date published: March 4, 2016

Across Trophic Level System Simulation for the Freshwater Wetlands of the Everglades and Big Cypress Swamp

Across Trophic Level System Simulation (ATLSS) is a project to develop a set of models for the Everglades and Big Cypress Swamp of South Florida. The models will support studies "to compare the future effects of alternative hydrologic scenarios on the biotic components of the system."

Date published: January 21, 2016

Streamflow and fish community diversity data for use in developing ecological limit functions for the Cumberland Plateau, northeastern Middle Tennessee and southwestern Kentucky, 2016

 Information contained within this dataset represents values of basin characteristics (see Table II in Knight and others, 2012), estimates of streamflow characteristics, measures of individual and cumulative departure of streamflow characteristics from reference hydrologic conditions, and fish species richness for 138 sites in the study area. 

Date published: September 9, 2010

Mangrove Secrets

The Sheltered Corals of Hurricane Hole, US Virgin Islands

Date published: September 14, 2006

Real-time streamflow compared to historical streamflow (Tennessee)

Map of real-time streamflow compared to historical streamflow for the day of the year (Tennessee)

Date published: September 26, 2001

Geological Survey of Alabama - Downloadable GIS datasets

Spatial/GIS data sets for Alabama are available numerous spatial data clearinghouses. Spatial/GIS data sets for USGS studies that include Alabama or include parts of Alabama are also available from USGS.

Downloadable GIS Datasets, OGB GIS Datasets, Digital Raster Graphics (DRG), 1:24000 DRG, 1:100000 DRG, 1:250000 DRG, Hazards GIS Data, Hazards Data Water GIS Data, HUC 11 Watersheds

Filter Total Items: 5,232
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Year Published: 2021

Genetic connectivity of the West Indian manatee in the southern range and limited evidence of hybridization with Amazonian manatees

The Antillean subspecies of the West Indian manatee is classified as endangered by the International Union for the Conservation of Nature (IUCN) Red List. In Brazil, the manatee population is listed as endangered with an estimated population size of 500–1,000. Historic hunting, recent habitat degradation, and fisheries bycatch have decreased the...

Luna, Fabia O.; Beaver, Caitlin; Nourisson, Coralie; Bonde, Robert; Attademo, Fernanda L. N.; Miranda, Adriana V.; Torres-Florez, Juan P.; de Sousa, Glaucia P.; Passavate, Jose Z.; Hunter, Margaret

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Year Published: 2021

Mangroves and people: Impacts and interactions

Mangroves have long been associated with human populations, as coastal communities rely on the various ecosystem services that mangroves provide. However, human degradation and destruction of mangrove forests is common, despite and because of our reliance on them as valuable ecosystems. Mangrove research and management must elucidate and reconcile...

Freiss, Daniel A; Chua, Siew Chin; Jaafer, Zeehan; Krauss, Ken; Yando, Erik S.

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Year Published: 2021

Red imported fire ants reduce invertebrate abundance, richness, and diversity in Gopher Tortoise burrows

Gopher Tortoise (Gopherus polyphemus) burrows support diverse commensal invertebrate communities that may be of special conservation interest. We investigated the impact of red imported fire ants (Solenopsis invicta) on the invertebrate burrow community at 10 study sites in southern Mississippi, sampling burrows (1998–2000) before and after bait...

Epperson, Deborah Mardeane; Allen, Craig R.; Hogan, Katharine F.E.

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Year Published: 2021

Effects-based monitoring of bioactive chemicals discharged to the Colorado River before and after a municipal wastewater treatment plant replacement

Monitoring of the Colorado River near the Moab, Utah, wastewater treatment plant (WWTP) outflow has detected pharmaceuticals, hormones, and estrogen-receptor (ER)-, glucocorticoid receptor (GR)-, and peroxisome proliferator-activated receptor-gamma (PPARγ)-mediated biological activities. The aim of the present multi-year study was to assess...

Cavallin, J.E.; Battaglin, William A.; Beihoffer, Jon; Blackwell, Bradley D.; Bradley, Paul; Cole, AR; Ekman, Drew R.; Hofer, R; Kinsey, J; Keteles, Kristen; Weissinger, R; Winkelman, Dana L.; Villeneuve, Daniel L.

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Year Published: 2021

Strategic habitat conservation for beach mice: Estimating management scenario efficiencies

The Perdido Key beach mouse (Peromyscus polionotus trissyllepsis), Choctawhatchee beach mouse (P. p. allophrys), and St. Andrew beach mouse (P. p. peninsularis) are 3 federally endangered subspecies that inhabit coastal dunes of Alabama and Florida, USA. Conservation opportunities for these subspecies are limited and costly. Consequently, well‐...

Cronin, James P.; Tirpak, Blair; Dale, Leah L; Robenski, Virginia E; Tirpak, John M.; Marcot, Bruce G.

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Year Published: 2021

Seasonal periphyton response to low-level nutrient exposure in a least disturbed mountain stream, the Buffalo River, Arkansas

Like most streams located in the Ozark Plateaus, the Buffalo River in Arkansas generally has excellent water quality. Water-quality conditions in Big Creek, however, a major tributary of the middle Buffalo River, have been less favorable than that of other Buffalo River tributaries. Concerns regarding the influence of water quality in Big Creek on...

Justus, Billy; Driver, Lucas; Burge, David R. L.

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Year Published: 2021

The impact of ventilation patterns on calcite dissolution rates within karst conduits

Erosion rates in streams vary dramatically over time, as differences in streamflow and sediment load enhance or inhibit erosion processes. Within cave streams, and other bedrock channels incising soluble rocks, changes in water chemistry are an important factor in determining how erosion rates will vary in both time and space. Prior studies in...

Covington, Matthew D.; Knierim, Katherine J.; Young, Holly H; Rodriguez, Josue; Gnoza, Hannah

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Year Published: 2021

Small mammal responses to wetland restoration in the Greater Everglades ecosystem

Wetlands have experienced dramatic losses in extent around the world, disrupting ecosystem function, habitat, and biodiversity. In Florida’s Greater Everglades, a massive restoration effort costing billions of dollars and spanning multiple decades is underway. As Everglades restoration is implemented in incremental projects, scientists and...

Romanach, Stephanie; D'Acunto, Laura; Chapman, Julia; Hanson, Matthew R

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Year Published: 2021

A comparison of plant communities in restored, old field, and remnant coastal prairies

Temperate grasslands are experiencing worldwide declines due to habitat conversion. Grassland restoration efforts are employed to compensate for these losses. However, there is a need to better understand the ecological effects of grassland restoration and management practices. We investigated the effects of three different grassland management...

Feher, Laura; Allain, Larry; Osland, Michael; Pigott, Elisabeth; Reid, Christopher; Latiolais, Nicholas

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Year Published: 2021

Germination potential of baldcypress (Taxodium distichum) swamp soil seed bank along geographical gradients

Changing environments of temperature, precipitation and moisture availability can affect vegetation in ecosystems, by affecting regeneration from the seed bank. Our objective was to explore the responses of soil seed bank germination to climate-related environments along geographic gradients. We collected seed banks in baldcypress (Taxodium...

Lei, Ting; Middleton, Beth

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Year Published: 2021

Carrying capacity of spatially distributed metapopulations

Carrying capacity is a key concept in ecology. A body of theory, based on the logistic equation, has extended predictions of carrying capacity to spatially distributed, dispersing populations. However, this theory has only recently been tested empirically. The experimental results disagree with some theoretical predictions of when they are...

Zhang, Bo; DeAngelis, Don; Ni, Wei-Ming

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Year Published: 2021

Surface elevation change evaluation in mangrove forests using a low‐cost, rapid‐scan terrestrial laser scanner

Mangrove forests have adapted to sea level rise (SLR) increases by maintaining their forest floor elevation via belowground root growth and surface sediment deposits. Researchers use surface elevation tables (SETs) to monitor surface elevation change (SEC) in mangrove forests, after which this information is used to assess SLR resiliency or to...

Kargar, Ali Rouzbeh; MacKenzie, Richard A.; Fafard, Alexander; Krauss, Ken; van Aardt, Jan

Filter Total Items: 500
USGS
December 31, 2018

Green treefrog - Hyla cinerea

Green treefrogs call from their favorite habitat, rivers and lakes. They’re native to Louisiana and Florida, where these were recorded. Credit: Paul Moler, used with permission.

USGS
December 31, 2018

Squirrel treefrog - Hyla squirella (Marion)

Squirrel treefrogs are also native to Florida and Louisiana. Hear them calling from ditches, puddles and other ephemeral pools of water. Credit: Paul Moler, used with permission.
 

Florida Bay at sunset
December 31, 2018

Florida Bay at Sunset, 2018

After a long day collecting cores, the team of scientists watch the sun set over the Florida Bay.

Perspective view of coastal bathymetry looking onshore, St. Thomas, US Virgin Islands
December 21, 2018

Perspective lidar view of coastal bathymetry at St. Thomas, USVI

Perspective view of coastal bathymetry looking onshore, St. Thomas, US Virgin Islands, mapped using lidar and depicted with false-color, showing detailed submerged features, including coral reefs.

Water seeping out of the ground at an exposed driveway cut into the ground.
December 3, 2018

Groundwater can flow out of the ground back to land surface.

My neighbor's driveway with some water on it... not very exciting, but it is an excellent example of how groundwater flows underground and can seep back to the land surface. This simple process demonstrates one of the basic aspects of the water cycle.

 This picture really demonstrates why there is water in many streams even after long periods of no rainfall. You

...
Time exposure image shows a curving beach and the water is smooth where waves were breaking over a 10-minute period.
November 13, 2018

Isla Verde Video Camera 2 Timex

Time-exposure image of Isla Verde in San Juan, Puerto Rico, from a coastal video monitoring station. Image is time-averaged over 10 minutes of video.

Time exposure image of Isla Verde in San Juan, Puerto Rico, from a coastal video monitoring station. Image represents a time-ave
November 13, 2018

Isla Verde Video Camera 3 Timex

Time-exposure image of Isla Verde in San Juan, Puerto Rico, from a coastal video monitoring station. Image is time-averaged over 10 minutes of video.

Dark image from a video camera shooting for 10 minutes, shows a beach and where varying degrees of movement happened.
November 13, 2018

Isla Verde Video Camera 4 Variance Image

Variance image of Isla Verde in San Juan, Puerto Rico, from a coastal video monitoring station. Image is compiled from 10 minutes of video and shows areas of more movement as brighter colors.

Filter Total Items: 393
This green disc identifies a USGS High-Water Mark, which was found south of Jacksonville, Florida, September 27, on a canal.
September 28, 2017

Reporters: Do you want to accompany a USGS field crew as they work in the field to document how high the flood waters and storm surge from Hurricane Irma reached around the Jacksonville, Tampa and Fort Myers Areas?

If so, please contact Jeanne Robbins, jrobbins@usgs.gov, 919-571-4017.  

Boat thrown onto land from Hurricane Irma's surge at a ramp in St. Augustine, Florida
September 19, 2017

Editor’s note: this news release will be updated online with more information on the streamgage records being set in Florida as it becomes available

Satellite captured image of the rapidly intensifying storm, Harvey
September 8, 2017

As Harvey’s record breaking rainfall and catastrophic flood waters recede in Texas and western Louisiana, U.S. Geological Survey teams are collecting high water marks, monitoring water levels and coastal change, retrieving storm tide sensors and collecting samples for water quality analysis.

Preparing to measure Irma's storm surge in Puerto Rico
September 6, 2017

 To learn more about USGS’ role providing science to decision makers before, during and after Hurricane Irma, visit the USGS Hurricane Irma page.

Sensor deployment
September 6, 2017

To learn more about USGS’ role providing science to decision makers before, during and after Hurricane Irma, visit the USGS Hurricane Irma page.

Southeastern myotis with Pd - thumb
June 1, 2017

Biologists have confirmed white-nose syndrome in the southeastern bat, or Myotis austroriparius, for the first time. The species joins eight other hibernating bat species in North America that are afflicted with the deadly bat fungal disease.

Microscope image of Dolichospermum circinale, a cyanobacteria found in last year's Florida harmful algal bloom.
May 31, 2017

A new U.S. Geological Survey study that looked at the extensive harmful algal bloom that plagued Florida last year found far more types of cyanobacteria present than previously known.

Prescribed Burn at Tall Timbers Research Station
May 24, 2017

U.S. Geological Survey scientists and partners are taking technology to the next level, using unmanned aircraft systems (UAS), commonly called drones, to acquire both fire intensity and emissions data during prescribed burns.

Follow Region 2 activities on social media, get contact information for Region 2 USGS centers, and meet Region 2's staff and center directors. 

Filter Total Items: 283