Unified Interior Regions

Region 1: North Atlantic-Appalachian

Our Science Centers

Our Science Centers

The NAA Region has 15 Science Centers spanning 14 NE States and Washington, DC. The Centers conduct interdisciplinary biologic, geologic, hydrologic, and energy monitoring and research addressing natural resource issues facing our nation.

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August and September Photo Contests

August and September Photo Contests

Check out the winning photographs in the August and September 2021 Photo Contests! Categories include People, USGS at Work, Where We Work, and Honorable Mention.

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Regions L2 Landing Page Tabs

Filter Total Items: 1,126
Date published: March 5, 2018
Status: Active

Estuarine Processes Model Development

We are developing new routines within the COAWST model framework to represent coupled bio-physical processes in estuarine and coastal regions. These include routines for marsh vulnerability to waves, estuarine biogeochemistry, and feedbacks between aquatic vegetation and hydrodynamics.

Date published: March 1, 2018
Status: Active

Groundwater Sustainability of the Long Island Aquifer System

Groundwater sustainability can be best defined as the development and use of groundwater in a manner that can be maintained for an indefinite time without causing unacceptable environmental or socioeconomic consequences. Informed management of the Long Island aquifer system can help ensure a regionally sustainable groundwater resource. The USGS and New York State Department of Environmental...

Date published: March 1, 2018
Status: Active

Northeast Amphibian Research and Monitoring Initiative

The USGS Amphibian Research and Monitoring Initiative (ARMI) is designed to determine where populations of amphibians are present, to monitor specific apex populations, and to investigate potential causes of amphibian declines, diseases, and malformations. The Northeast Region of ARMI encompasses thirteen states (Connecticut, Delaware, Maine, Maryland, Massachusetts, New Hampshire, New Jersey...

Date published: February 28, 2018
Status: Active

Bioinformatics

Bioinformatics is a relatively new field of science that incorporates elements of biology and computer science together for the purpose of developing efficient and robust methods for the analyses and interpretation of large amounts of biological data, typically DNA or RNA sequence data.

Date published: February 28, 2018
Status: Completed

Non-Archived Models

Non-archived models are typically  older models with little to no computer files or models with a limited extent. For these models, a link to the published report on the USGS publication warehouse website is available.

Contacts:
Date published: February 28, 2018
Status: Active

Hydrogeologic-Framework Mapping - Long Island, New York

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Long Island is underlain by unconsolidated Holocene deposits, glacial deposits of Pleistocene age, and coastal-plain deposits  of Late Cretaceous age. These sediments consist of gravel, sand, silt, and clay underlain by...

Date published: February 28, 2018
Status: Active

Saltwater-Interface Mapping - Long Island, New York

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Saltwater intrusion is the most common type of water-quality degradation in coastal-plain aquifers. In coastal areas, the hydraulic head under predevelopment (nonpumping) conditions is higher on land than in the surrounding...

Date published: February 28, 2018
Status: Active

Warm Freshwater Ecosystems

These systems are characterized as 4th order and larger nontidal riverine systems, which includes many of the intermediate and larger size rivers, such as the Penobscot, Connecticut, Hudson, Delaware, and Susquehanna Rivers and their larger tributaries of the northeastern U.S.  Fish passage, thermal stress, and ecological flows are likely important issues in these systems.  Fish...

Date published: February 28, 2018
Status: Active

Disease and Environmental Stress

Disease may be caused by infectious agents, nutritional imbalances, physiological or genetically-based abnormalities, and suboptimal environmental conditions, acting either alone or in combination with other factors.  In many instances, environmental stressors may merge forces with an infectious agent or some other non-infectious factor to produce or exacerbate a state of disease.  By studying...

Date published: February 28, 2018
Status: Active

Freshwater Mussel Physiology

Freshwater mussels are considered ecosystems engineers benefiting the streams and rivers they inhabit through filtration, biodeposition, and nutrient cycling, thereby influencing water quality.  However, many of these species are rapidly declining due to shifting environmental conditions and habitat loss.  Researchers at Leetown Science Center are evaluating how different species of mussels...

Date published: February 27, 2018
Status: Active

USGS Ohio Water Microbiology Laboratory - Cyanobacteria and toxin gene molecular assays

Harmful cyanobacterial “algal” blooms and associated toxins are of concern in many parts of the world because of their effects on drinking water, water-based recreation, and watershed ecology. Cyanotoxins are a diverse group of compounds that include hepatotoxins, neurotoxins, cytotoxins, dermatotoxins, and irritant toxins (Wiegand and Pflugmacher, 2005). Numerous incidents of animal and human...

Contacts: Erin A Stelzer
Date published: February 27, 2018
Status: Active

Assessing Endangered Marsh Rabbit and Woodrat Habitat use and Predator Population Dynamics

 Feral and free-ranging domestic cats (Felis catus) have strong negative effects on wildlife, particularly in island ecosystems such as the Florida Keys. We deployed camera traps to study free-ranging cats in National Wildlife Refuges and state parks on Big Pine Key and Key Largo and used spatial models to estimate cat population dynamics and stable isotope analyses to examine cat diets. Top...

Filter Total Items: 16,199
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Year Published: 2019

Characterization of smoltification in the Tasmanian strain of Atlantic salmon (Salmo salar) in recirculation and flowthrough systems

This study examined morphological, physiological and molecular indicators of smoltification in Atlantic salmon (Salmo salar) juveniles in a flow-through (FT) and recirculating aquaculture system (RAS). Fish were exposed to 24-h light to initiate smoltification, for 5 (FT) and 7 (RAS) weeks prior to transfer from freshwater (FW) to seawater (SW)...

van Rijn, Christian A.; Jones, P.L.; Evans, Brad S.; Huynh, Christine; McCormick, Stephen D.; Afonso, Luis O B

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Year Published: 2019

Relevance of wind stress and wave-dependent ocean surface roughness on the generation of winter meteotsunamis in Northern Gulf of Mexico

Meteotsunamis associated with passing squall lines are often observed ahead of cold fronts during winter seasons in Northern Gulf of Mexico. These types of meteotsunamis occur simultaneously with wind speed variations (~5-20 m/s) and sea-level atmospheric pressure oscillations (~1-6 hPa) with periods between 2 hours to several minutes. In order to...

Shi, Lijing; Olabarrieta, Maitane; Valle-Levinson, A; Warner, John C.

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Year Published: 2019

Identifying salt marsh shorelines from remotely sensed elevation data and imagery

Salt marshes are valuable ecosystems that are vulnerable to lateral erosion, submergence, and internal disintegration due to sea-level rise, storms, and sediment deficits. Because many salt marshes are losing area in response to these factors, it is important to monitor their lateral extent at high resolution over multiple timescales. In this...

Farris, Amy S.; Defne, Zafer; Ganju, Neil Kamal

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Year Published: 2019

Spatial and temporal distribution of bacterial indicators and microbial-source tracking within Tumacácori National Historical Park and the upper Santa Cruz River, southern Arizona and northern Mexico, 2015–2016

Tumacácori National Historical Park (TUMA) in southern Arizona protects the culturally important Mission San José de Tumacácori, while also managing a part of the ecologically diverse riparian corridor of the Santa Cruz River. The quality of the water flowing through depends solely on upstream watershed activities, and among the water-quality...

Paretti, Nicholas V.; Kephart, Christopher M.; Porter, Thomas J.; Hermosillo, Edyth; Cederberg, Jay R.; Mayo, Justine P.; Gungle, Bruce W.; Coes, Alissa L.; Tucci, Rachel S.; Norman, Laura M.
Paretti, N.V., Kephart, C.M., Porter, T.J., Hermosillo, E., Cederberg, J.R., Mayo, J.P., Gungle, B., Coes, A.L., Tucci, R.S., and Norman, L.M., 2019, Spatial and temporal distribution of bacterial indicators and microbial-source tracking within Tumacácori National Historical Park and the upper Santa Cruz River, southern Arizona and northern Mexico, 2015–2016: U.S. Geological Survey Scientific Investigations Report 2019–5108, 102 p., https://doi.org/10.3133/sir20195108.

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Year Published: 2019

Large loss of CO2 in winter observed across pan-arctic permafrost region

Recent warming in the Arctic, which has been amplified during the winter1,2,3, greatly enhances microbial decomposition of soil organic matter and subsequent release of carbon dioxide (CO2)4. However, the amount of CO2 released in winter is not known and has not been well represented by ecosystem models or empirically based estimates5,6. Here...

Natali, Susan M; Watts, Jennifer D.; Potter, Stefano; Rogers, Brendan M.; Ludwig, Sarah M.; Selbmann, Anne-Katrin; Sullivan, Patrick F.; Abbott, Benjamin W.; Arndt, Kyle A.; Birch, Leah; Bjorkman, Mats P.; Bloom, Anthony; Celis, Gerardo; Christiensen, Torben R.; Christiansen, Casper T.; Commane, Roisin; Cooper, Elisabeth J.; Crill, Patrick; Czimczik, Claudia; Davydov, Sergey; Du, Jinyang; Egan, Jocelyn E.; Elberling, Bo; Euskirchen, Eugenie S.; Friborg, Thomas; Genet, Helene; Gockede, Mathias; Goodrich, Jordan P.; Grogan, Paul; Helbig, Manuel; Jafarov, Elchin E.; Jastrow, Julie; Kalhori, Aram A.M.; Kim, Yongwon; Kimball, John S; Kutzbach, Lars; Lara, Mark J.; Larsen, Klaus S.; Loranty, Michael M; Lund, Magnus; Lupascu, Massimo; Madani, Nima; Malhorta, Avni; McFarland, Jack; McGuire, David A.; Michelson, Anders; Minions, Christina; Oechel, Walter C.; Olefeldt, David; Parmentier, Frans-Jan; Pirk, Norbert; Poulter, Benjamin; Quinton, William L.; Rezanezhad, Fereidoun; Risk, David; Sachs, Torsten; Schaefer, Kevin; Schmidt, Neils M.; Schuur, Edward A.G.; Semenchuk, Philipp R.; Shaver, Gaius; Sonnentag, Oliver; Starr, Gregory; Treat, Claire C.; Waldrop, Mark P.; Wang, Yihui; Welker, Jeffrey; Wille, Christian; Xu, Xiaofeng; Zhang, Zhen; Zhuang, Qianlai; Zona, Donatella

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Year Published: 2019

Baseline environmental monitoring of groundwater, surface water, and soil at the Ammonium Perchlorate Rocket Motor Destruction Facility at the Letterkenny Army Depot, Chambersburg, Pennsylvania, 2016

Letterkenny Army Depot in Chambersburg, Pennsylvania, built an Ammonium Perchlorate Rocket Motor Destruction (ARMD) facility in 2016. The ARMD Facility was designed to centralize rocket motor destruction and contain or capture all waste during the destruction process. Ideally, there would be no contaminant transport to air, soil, or water from the...

Galeone, Daniel G.
Galeone, D.G., 2019, Baseline environmental monitoring of groundwater, surface water, and soil at the Ammonium Perchlorate Rocket Motor Destruction Facility at the Letterkenny Army Depot, Chambersburg, Pennsylvania, 2016: U.S. Geological Survey Open-File Report 2019–1094, 32 p., https://doi.org/10.3133/ofr20191094.

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Year Published: 2019

Real-time assessments of water quality—A nowcast for Escherichia coli and cyanobacterial toxins

Threats to our recreational and drinking waters include disease-causing (pathogenic) organisms from fecal contamination and toxins produced by some species of cyanobacteria (cyanotoxins) that can cause acute and (or) chronic illnesses. Because traditional laboratory methods for detecting these threats take too long for prompt public health...

Francy, Donna S.; Brady, Amie M.G.; Zimmerman, Tammy M.
Francy, D.S., Brady, A.M., and Zimmerman, T.M., 2019, Real-time assessments of water quality—A nowcast for Escherichia coli and cyanobacterial toxins: U.S. Geological Survey Fact Sheet 2019–3061, 4 p., https://doi.org/10.3133/fs20193061.

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Year Published: 2019

Morphodynamic modeling of the response of two barrier islands to Atlantic hurricane forcing

The accurate prediction of a barrier island response to storms is challenging because of the complex interaction between hydro- and morphodynamic processes that changes at different stages during an event. Assessment of the predictive skill is further complicated because of uncertainty in the hydraulic forcing, initial conditions, and the...

van der Lugt, Marlies; Quataert, Ellen; van Dongeren, Ap; van Ormondt, Maarten; Sherwood, Christopher R.

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Year Published: 2019

Water for Long Island: Now and for the future

Do you ever wonder where your water comes from? If you live in Nassau or Suffolk County, the answer is, groundwater. Groundwater is water that started out as precipitation (rain and snow melt) and seeped into the ground. This seepage recharges the freshwater stored underground, in the spaces between the grains of sand and gravel in what are...

Masterson, John; Breault, Robert F.
Masterson, J.P., and Breault, R., 2019, Water for Long Island—Now and for the future: U.S. Geological Survey Fact Sheet 2019–3052, 2 p., https://doi.org/10.3133/fs20193052.

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Year Published: 2019

Regression models for estimating sediment and nutrient concentrations and loads at the Iroquois River near Foresman, Indiana, March 2015 through July 2018

In 2015, the U.S. Geological Survey, in cooperation with the Iroquois River Conservancy District, deployed continuous water-quality monitors and began collecting representative discrete water-quality samples at the Iroquois River near Foresman, Indiana, streamflow-gaging station (U.S. Geological Survey station 05524500). By relating continuously...

Lathrop, Timothy R.; Bunch, Aubrey R.; Downhour, Myles S.; Perkins, Daniel M.
Lathrop, T.R., Bunch, A.R., Downhour, M.S., and Perkins, D.M., 2019, Regression models for estimating sediment and nutrient concentrations and loads at the Iroquois River near Foresman, Indiana, March 2015 through July 2018: U.S. Geological Survey Scientific Investigation Report 2019–5087, 14 p., https://doi.org/10.3133/sir20195087.

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Year Published: 2019

Deer do not affect short-term rates of vegetation recovery in overwash fans on Fire Island after Hurricane Sandy

1. Coastal resilience is threatened as storm-induced disturbances become more frequent and intense with anticipated changes in weather patterns. After severe storms, rapid recovery of vegetation, especially that of dune-stabilizing plants, is a fundamental property of coastal resilience. Herbivores may affect resilience by selectively foraging...

Kilheffer, Chellby R.; Underwood, H. Brian; Raphael, Jordan; Ries, Lindsay; Farrell, Shannon; Leopold, Donald J.

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Year Published: 2019

Decline of the North American avifauna

Species extinctions have defined the global biodiversity crisis, but extinction begins with loss in abundance of organisms that can result in extreme compositional and functional changes of ecosystems. Using multiple and independent monitoring networks, we report major population losses across much of the North American avifauna, including in once...

Sauer, John R.; Rosenberg, Kenneth V.; Dokter, Adriaan M.; Blancher, Peter J.; Smith, Adam C.; Smith, Paul A.; Stanton, J.C.; Panjabi, Arvind O.; Helft, Laura; Parr, Michael J.; Marra, Peter P.

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Alana Spaetzel collecting water-quality sample on Sakonnet tidal strait in Rhode Island
August 21, 2018

Collecting water samples on Sakonnet

Alana Spaetzel collecting water-quality sample on Sakonnet tidal strait in Rhode Island

Photograph of USGS personnel retrieving airguns
August 17, 2018

Retrieving airguns

 Jenny White McKee and Pete Dal Ferro of the Pacific Coastal and Marine Science Center retrieve two airguns during the 2018 MATRIX cruise aboard the R/V Hugh R. Sharp.  The seismic streamer is visible on the winch in the foreground.

Photograph of 4 diesel compressors
August 17, 2018

Diesel Compressors

Four diesel-powered compressors chained to the deck of the R/V Hugh R. Sharp provided the air to power the seismic sources during the MATRIX cruise. 

Catherine Fargen and Moriah Will making a groundwater measurement
August 17, 2018

Catherine Fargen and Moriah Will making a groundwater measurement

Catherine Fargen and Moriah Will making a groundwater measurement.

Catherine Fargen and Moriah Will securing a well from floodwaters
August 17, 2018

Catherine Fargen and Moriah Will securing a well from floodwaters

Catherine Fargen and Moriah Will securing a well from floodwaters.

Photograph of Woods Hole Coastal and Marine Science Center staff at 2018 Woods Hole Science Stroll
August 11, 2018

Woods Hole Science Stroll 2018

Woods Hole Coastal and Marine Science Center staff, Tarandeep Kalra (pointing in light blue shirt) and Zafer Defne (orange USGS shirt) discuss oceanographic models with Science Stroll attendees

Photograph of USGS personnel talking to Science Stroll participants
August 11, 2018

Sharing Science

Sandy Baldwin, Woods Hole Coastal and Marine Science Center, shares video from the kilauea volcano with Science Stroll participants.

Filter Total Items: 594