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: 371
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
Date published: December 21, 2018
Status: Active

CFWSC Strategic Science Plan - Communication, Information Management, and Science Support

The USGS Caribbean-Florida Water Science Center Strategic Science Plan 2017-2027: A blueprint for USGS contributions to water resource science in Florida, Puerto Rico, and the US Virgin Islands

Stamm, J.F., Rodríguez, J.M., Sifuentes, D.F., Sumner, D.M., and Grimsley, K.J. with contributions from Bogeajis, N., Torres-González, S., McBride, W.S., Parks, J., and Decker, J...

Date published: December 20, 2018
Status: Active

CFWSC Strategic Plan - Priority Issues

The USGS Caribbean-Florida Water Science Center Strategic Science Plan 2017-2027: A blueprint for USGS contributions to water resource science in Florida, Puerto Rico, and the US Virgin Islands

Stamm, J.F., Rodríguez, J.M., Sifuentes, D.F., Sumner, D.M., and Grimsley, K.J. with contributions from Bogeajis, N., Torres-González, S., McBride, W.S., Parks, J., and Decker, J...

Date published: December 19, 2018
Status: Active

CFWSC Strategic Science Plan

The USGS Caribbean-Florida Water Science Center Strategic Science Plan 2017-2027: A blueprint for USGS contributions to water resource science in Florida, Puerto Rico, and the US Virgin Islands

Stamm, J.F., Rodríguez, J.M., Sifuentes, D.F., Sumner, D.M., and Grimsley, K.J. with contributions from Bogeajis, N., Torres-González, S., McBride, W.S., Parks, J., and Decker, J...

Date published: December 19, 2018
Status: Active

Eastern Basins Oil and Gas Assessments

The USGS has conducted several assessments of undiscovered oil and gas in formations in the Blue Ridge Thrust Belt (5068), Piedmont Province (5069), Atlantic Coastal Plain Province (5070), and the New England Province (5072).  These basins are generally east of the Appalachian Basin Province (5067).

Date published: December 14, 2018
Status: Active

Carbonate Aquifer Characterization Laboratory

The Carbonate Aquifer Characterization Laboratory (CACL) was initiated to promote collaborative research on carbonate aquifer characterization between the USGS and other governmental scientific agencies and academia. And, also to provide applied research for local, state, and federal agencies, and private industry, when research needs are within the scope of the USGS mission.

As the...

Filter Total Items: 5,375
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Year Published: 2021

Estimating the influence of oyster reef chains on freshwater detention at the estuary scale using Landsat-8 imagery

Oyster reef chains grow in response to local hydrodynamics and can redirect flows, particularly when reef chains grow perpendicular to freshwater flow paths. Singularly, oyster reef chains can act as porous dams that may facilitate nearshore accumulation of fresh or low-salinity water, in turn creating intermediate salinities that support oyster...

Alonso, Alice; Nelson, Natalie G.; Yurek, Simeon; Kaplan, David; Olabarrieta, Maitane; Frederick, Peter C

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Year Published: 2021

Global commitments to conserving and monitoring genetic diversity are now necessary and feasible

Global conservation policy and action have largely neglected protecting and monitoring genetic diversity—one of the three main pillars of biodiversity. Genetic diversity (diversity within species) underlies species’ adaptation and survival, ecosystem resilience, and societal innovation. The low priority given to genetic diversity has largely been...

Hoban, Sean M.; Bruford, Michael W.; Funk, W. Chris; Galbusera, Peter; Griffith, M. Patrick; Grueber, Catherine E.; Heuertz, Myriam; Hunter, Margaret; Hvilsom, Christina; Stroil, Belma Kalamujic; Kershaw, Francine; Khoury, Colin K.; Laikre, Linda; Lopes-Fernandes, Magarida; MacDonald, Anna J.; Mergeay, Joachim; Meek, Mariah; Mittan, Cinnamon; Mukassabi, Tarek A.; O'Brien, David; Ogden, Rob; Palma-Silva, Clarisse; Ramakrishnan, Uma; Segelbacher, Gernot; Shaw, Robyn E.; Sjögren-Gulve, Per; Velickovic, Nevena; Vernesi, Cristiano

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Year Published: 2021

Science needs of southeastern grassland species of conservation concern: A framework for species status assessments

The unglaciated southeastern United States is a biodiversity hotspot, with a disproportionate amount of this biodiversity concentrated in grasslands. Like most hotspots, the Southeast is also threatened by human activities, with the total reduction of southeastern grasslands estimated as 90 percent (upwards to 100 percent for some types) and with...

Noss, Reed F.; Cartwright, Jennifer M.; Estes, Dwayne; Witsell, Theo; Elliott, K. Gregg; Adams, Daniel S.; Albrecht, Matthew A.; Boyles, Ryan; Comer, Patrick J.; Doffitt, Chris; Faber-Langendoen, Don; Hill, JoVonn G.; Hunter, William C.; Knapp, Wesley M.; Marshall, Mike; Pyne, Milo; Singhurst, Jason R.; Tracey, Christopher; Walck, Jeffrey L.; Weakley, Alan
Noss, R.F., Cartwright, J.M., Estes, D., Witsell, T., Elliott, K.G., Adams, D.S., Albrecht, M.A., Boyles, R., Comer, P.J., Doffitt, C., Faber-Langendoen, D., Hill, J.G., Hunter, W.C., Knapp, W.M., Marshall, M., Pyne, M., Singhurst, J.R., Tracey, C., Walck, J.L., and Weakley, A., 2021, Science needs of southeastern grassland species of conservation concern—A framework for species status assessments: U.S. Geological Survey Open-File Report 2021–1047, 58 p., https://doi.org/10.3133/ofr20211047.

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Year Published: 2021

Summary of oceanographic and water-quality measurements offshore of Matanzas Inlet, Florida, 2018

U.S. Geological Survey (USGS) scientists and technical staff deployed instrumented underwater platforms and buoys to collect oceanographic and atmospheric data at two sites near Matanzas Inlet, Florida, on January 24, 2018, and recovered them on April 13, 2018. Matanzas Inlet is a natural, unmaintained inlet on the Florida Atlantic coast that is...

Martini, Marinna A.; Montgomery, Ellyn; Suttles, Steven E.; Warner, John C.
Martini, M.A., Montgomery, E.T., Suttles, S.E., and Warner, J.C., 2021, Summary of oceanographic and water-quality measurements offshore of Matanzas Inlet, Florida, 2018: U.S. Geological Survey Open-File Report 2021–1014, 21 p., https://doi.org/10.3133/ofr20211014.

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Year Published: 2021

Pilot-scale expanded assessment of inorganic and organic tapwater exposures and predicted effects in Puerto Rico, USA

A pilot-scale expanded target assessment of mixtures of inorganic and organic contaminants in point-of-consumption drinking water (tapwater, TW) was conducted in Puerto Rico (PR) to continue to inform TW exposures and corresponding estimations of cumulative human-health risks across the US. In August 2018, a spatial synoptic pilot assessment of...

Bradley, Paul; Padilla, Ingrid Y.; Romanok, Kristin; Smalling, Kelly; Focazio, Michael J.; Breitmeyer, Sara; Cardon, Mary C.; Conley, Justin M.; Evans, Nicola; Givens, Carrie E; Gray, James L.; Gray, L. Earl; Hartig, Phillip C.; Hladik, Michelle; Higgins, Christopher P.; Iwanowicz, Luke R.; Lane, Rachael; Loftin, Keith; McCleskey, R. Blaine; McDonough, Carrie A.; Medlock-Kakaley, Elizabeth; Meppelink, Shannon M.; Weis, Christopher P.; Wilson, Vickie S.

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Year Published: 2021

A U.S.-China EcoPartnership study of disturbed wetland vegetation in West Dongting Lake, China

West Dongting Lake in China is important for human livelihoods and habitat of migratory waterfowl and other wildlife. The waterway re-engineering and agriculture intensification have contributed to changes in hydrology, sediment, and vegetation on the floodplain. This paper describes an EcoPartnership program conducted by the U.S. Geological...

Lei, Ting; Middleton, Beth

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Year Published: 2021

Emerging dominance of Paratrochammina simplissima (Cushman and McCulloch) in the northern Gulf of Mexico following hydrologic and geomorphic changes

Grand Bay estuary in coastal Mississippi and Alabama (USA) has undergone significant geomorphic changes over the last few centuries as a result of anthropogenic (bridge, road, and hardened shoreline construction) and climatic (extreme storm events) processes, which reduce freshwater input, sediment supply, and...

Ellis, Alisha M.; Smith, Christopher

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Year Published: 2021

Rapid observations of ocean dynamics and stratification along a steep island coast during Hurricane María

Hurricanes are extreme storms that affect coastal communities, but the linkages between hurricane forcing and ocean dynamics remain poorly understood. Here, we present full water column observations at unprecedented resolution from the southwest Puerto Rico insular shelf and slope during Hurricane María, representing a rare set of high-frequency,...

Cheriton, Olivia; Storlazzi, Curt; Rosenberger, Kurt J.; Sherman, Clark E; Schmidt, Wilford

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Year Published: 2021

Biodiversity effects on grape quality depend on variety and management intensity

Interactions between plants can be beneficial, detrimental or neutral. In agricultural systems, competition between crop and spontaneous vegetation is a major concern. We evaluated the relative support for three non-exclusive ecological hypotheses about interactions between crop and spontaneous plants based on competition, complementarity or...

Steiner, Magdalena; Grace, James; Bacher, Sven

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Year Published: 2021

A graphical causal model for resolving species identity effects and biodiversity–ecosystem function correlations: comment

In a recent paper, Schoolmaster, Zirbel, and Cronin (SZC) (2020) claim “Formal causal analysis show[s] that biodiversity–ecosystem function (BEF) correlations are non-causal associations.” If this conclusion is accepted as true, it suggests a reconsideration of much of our current understanding of how biodiversity relates to the functioning of...

Inouye, Brian D.; Grace, James B.; Loreau, Michel; Schmid, Bernhard

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Year Published: 2021

Late Pleistocene baldcypress (Taxodium distichum) forest deposit on the continental shelf of the northern Gulf of Mexico

Approximately 13 km south of Gulf Shores, Alabama (United States), divers found in situ baldcypress (Taxodium distichum) stumps 18 m below the ocean surface. These trees could have only lived when sea level fell during the Pleistocene subaerially exposing the tectonically stable continental shelf. Here we investigate the...

DeLong, Kristine L.; Gonzalez, Suyapa; Obelcz, Jeffrey B.; Truong, Jonathan T.; Bentley, Samuel J.; Xu, Kehui; Reese, Carl A.; Harley, Grant L.; Caporaso, Alicia; Shen, Zhixiong; Middleton, Beth

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Year Published: 2021

Lipidomics reveals specific lipid molecules associated with cold stress syndrome in the Florida manatee (Trichechus manatus latirostris)

Cold stress syndrome (CSS) in the Florida manatee (Trichechus manatus latirostris) results in perturbations to many physiological pathways, often leading to further illness or death. In this study, we applied a non-targeted lipidomics approach with ultra-high performance liquid chromatography and high-resolution tandem mass spectrometry to...

Griffin, Emily K.; Costa, Kaylie Anne; Aristizabal-Henao, Juan J.; Napolitano, Michael P.; Hunter, Margaret; Ferrante, Jason; Bowden, John A.

Filter Total Items: 498
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.

Image from a video camera shooting for 10 minutes tracks the brightest pixels through that time.
November 13, 2018

Isla Verde Video Camera 1 Bright Image

Bright image of Isla Verde in San Juan, Puerto Rico, from a coastal video monitoring station. Image is compiled from 10 minutes of video and tracks the brightest pixels through 10 minutes of motion.

Image from a video camera shooting for 10 minutes tracks the brightest pixels through that time.
November 13, 2018

Isla Verde Video Camera 2 Bright Image

Bright image of Isla Verde in San Juan, Puerto Rico, from a coastal video monitoring station. Image is compiled from 10 minutes of video and tracks the brightest pixels through 10 minutes of motion.

Image from a video camera shooting for 10 minutes tracks the brightest pixels through that time.
November 13, 2018

Isla Verde Video Camera 3 Bright Image

Bright image of Isla Verde in San Juan, Puerto Rico, from a coastal video monitoring station. Image is compiled from 10 minutes of video and tracks the brightest pixels through 10 minutes of motion.

Image from a video camera shooting for 10 minutes tracks the brightest pixels through that time.
November 13, 2018

Isla Verde Video Camera 4 Bright Image

Bright image of Isla Verde in San Juan, Puerto Rico, from a coastal video monitoring station. Image is compiled from 10 minutes of video and tracks the brightest pixels through 10 minutes of motion.

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 8, 2018

Isla Verde Video Camera 2 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: 400
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.

A healthy coral reef at Buck Island, U.S. Virgin Island
April 20, 2017

In the first ecosystem-wide study of changing sea depths at five large coral reef tracts in Florida, the Caribbean and Hawai’i, U.S. Geological Survey researchers found the sea floor is eroding in all five places, and the reefs cannot keep pace with sea level rise. As a result, coastal communities protected by the reefs are facing increased risks from storms, waves and erosion.

A Manatee swimming in Florida waters.
April 11, 2017

Florida’s iconic manatee population is highly likely to endure for the next 100 years, so long as wildlife managers continue to protect the marine mammals and their habitat, a new study by the US Geological Survey and the Florida Fish and Wildlife Research Institute has found.

person standing next to large boulder
March 20, 2017

Geologists have discovered evidence that unusual seas detached living corals from a Caribbean reef and scattered them far inland, as boulders, during the last centuries before Columbus arrived. The new findings will reinforce precautions against coastal hazards, Caribbean tsunami specialists said.

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