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: September 6, 2017
Status: Completed

Water Use

The U.S. Geological Survey (USGS) estimates water use by state, source of water, and category of use every 5 years. The withdrawals for Maryland, Delaware, and the District of Columbia are available in the tables below.

In 2010, 1,472 million gallons per day (Mgal/d) of freshwater were withdrawn from surface water and groundwater sources in Maryland, 300 Mgal/d in Delaware, and 0.10...

Contacts: Wendy McPherson
Date published: September 6, 2017
Status: Completed

Monitoring Water-Quality Response of Conservation Practices in the Bucks Branch Watershed, Sussex County, Delaware

The Bucks Branch sub watershed in the Nanticoke River basin has been identified as having one of the highest concentrations of nitrate in surface water of all sites sampled in Delaware. 

Changes in water quality related to changes in agricultural conservation practices will be seen first in shallow groundwater as groundwater is the major source of nitrate in surface water. 

Very...

Date published: September 1, 2017
Status: Active

Hurricanes and Storm-Tide Monitoring

The USGS works in partnership with other federal and state agencies to provide scientific data about coastal flood hazards. The New Jersey Water Science Center (NJWSC) maintains a network of continuously operating tide gages along the back bays of New Jersey which provide publicly available water-level and meteorological data to monitor coastal flood conditions.  The USGS NJWSC...

Date published: September 1, 2017
Status: Active

Earthquake Resources

Earthquakes felt in New Jersey are generally few and small. However, some earthquakes have produced damage in New Jersey. New Jersey’s seismic hazard is lower than many earthquake-prone parts of the United States.  Across the state, seismic hazards are highest in northeastern New Jersey.  

Date published: September 1, 2017
Status: Active

Drought Resources

Conditions of moisture deficit sufficient to have an adverse effect on streamflow, groundwater levels, vegetation, animals, and man over a sizeable area.

Date published: August 30, 2017
Status: Active

Hydrogeology and Groundwater Quality of the Anacostia River Watershed

The Anacostia River has been subjected to dredging, filling, contamination, and other human influences for over 200 years. The result of these activities is that the river has been seriously degraded from its natural state. Many groups have been working to reduce the effects of environmental degradation on the water quality and living resources of the Anacostia River, primarily by focusing on...

Contacts: Cheryl Dieter
Date published: August 30, 2017
Status: Active

MD-DE-DC WSC Groundwater Studies Team

The U.S. Geological Survey provides unbiased, timely, and relevant information, studies, and data about groundwater resources of the Nation. The USGS monitors groundwater levels in thousands of wells across the U.S.  Hundreds of these wells are located in Maryland, Delaware, and the District of Columbia.  The MD-DE-DC Water Science Center logs data on approximately 370 groundwater wells...

Date published: August 30, 2017
Status: Active

Detailed Aquifer Mapping of the Oneonta Area Otsego and Delaware Counties, New York

Introduction The City of Oneonta and surrounding area is the major population center in Otsego County, N.Y. and home to two colleges (SUNY Oneonta and Hartwick College). The public water supply draws on both surface-water and groundwater sources and serves 15,954 people in the City of Oneonta and parts of the surrounding Town of Oneonta (City of Oneonta, 2013). The remaining population uses...

Contacts: Paul Heisig, P. Jay Fleisher
Date published: August 29, 2017
Status: Active

Mohawk River Basin Water Quality

Elevated levels of nutrients (for example, phosphorus) in the Mohawk River can lead to eutrophication and potentially toxic blue-green algal blooms. The U.S. Geological Survey (USGS), in cooperation with the New York Department of Environmental Conservation (NYSDEC) collected nutrient samples and measured streamflow in the Mohawk River. These data are being used to develop a water-quality...

Date published: August 28, 2017
Status: Active

An Investigation into the Water Surface Elevation Changes of Moreau Lake, Moreau Lake State Park, Saratoga County, NY

Background: Moreau Lake is located within Moreau Lake State Park, a 4,100 acre park divided by the Hudson River in northern Saratoga and southern Warren Counties of upstate New York. Moreau Lake has a surface area of 128 acres, a watershed of 469 acres, and 3.6 miles of shoreline. The lake has a “normal” mean depth of 32 feet and a maximum depth of 50 feet. An outlet control structure at...

Date published: August 25, 2017
Status: Active

Linking environmental and public health data to evaluate health effects of arsenic exposure from domestic and public supply wells

Everyone needs clean drinking water in order to thrive. The US EPA and public water purveyors in the US work together in adherence with the Safe Drinking Water Act to make water safe for public consumption. The recent media coverage of lead in public drinking water supplies in Flint, Michigan, and schools in many cities with aging infrastructure throughout the US has raised public awareness of...

Contacts: Joseph Ayotte
Date published: August 24, 2017
Status: Active

Flood Resources

The USGS reports document New Jersey floods from 1896 to the present. Early spring and winter flooding in New Jersey tends to occur as a result of widespread, steady rain of moderate intensity that falls on frozen ground. Snow and ice melt may increase the chance of winter flooding. Summer flooding resulting from thunderstorms typically occurs in small streams and is of local extent. Late...

Filter Total Items: 16,199
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Year Published: 2019

Thin-layer sediment addition to an existing salt marsh to combat sea-level rise and improve endangered species habitat in California, USA

Current tidal marsh elevations and their accretion rates are important predictors of vulnerability to sea-level rise. When tidal marshes are at risk, adaptation measures, such as sediment addition to increase elevations, can be implemented to prevent degradation and loss. In 2016, wildlife managers prescribed a thin-layer sediment addition of...

Thorne, Karen M.; Freeman, Chase M.; Rosencranz, Jordan A.; Ganju, Neil Kamal; Guntenspergen, Glenn R.

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Year Published: 2019

Assessment of the presence of sewage in the Mill River under low-flow conditions, Springfield, Massachusetts, 2010–11

The U.S. Geological Survey, in cooperation with the Pioneer Valley Planning Commission, the U.S. Environmental Protection Agency, and the Massachusetts Department of Environmental Protection Senator William X. Wall Experiment Station, assessed the presence of 14 commonly used human-health pharmaceutical compounds, fecal indicator bacteria, and...

Massey, Andrew J.; Marcus C. Waldron; Jean Tang, R.; Huntington, Thomas G.
Massey, A.J., Waldron, M.C., Tang, R.J., and Huntington, T.G., 2019, Assessment of the presence of sewage in the Mill River under low-flow conditions, Springfield, Massachusetts, 2010–11: U.S. Geological Survey Scientific Investigations Report 2019–5027, 18 p., https://doi.org/10.3133/sir20195027.

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Year Published: 2019

Amphibian conservation in the Anthropocene

Research is necessary to identify patterns in nature, to understand how a system functions, and to make predictions about the future state of an ecosystem. Applied research in conservation biology can identify effective strategies to maintain biodiversity, though many papers end with the conclusion that more research is needed. However, more...

Campbell Grant, Evan H.; Muths, Erin L.; Schmidt, Benedikt R.; Petrovan, Silviu

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Year Published: 2019

Changes in hydrodynamics and wave energy as a result of seagrass decline along the shoreline of a microtidal back-barrier estuary

Seagrasses are marine flowering plants that provide key ecological services. In recent decades, multiple stressors have caused a worldwide decline in seagrass beds. Changes in bottom friction associated with seagrass loss are expected to influence the ability of estuarine systems to trap sediment inputs through local and regional changes in...

Donatelli, Carmine; Ganju, Neil Kamal; Kalra, Tarandeep S.; Fagherazzi, S; Leonardi, Nicoletta

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Year Published: 2019

Estimating domestic well locations and populations served in the contiguous U.S. for years 2000 and 2010

Domestic wells provide drinking water supply for approximately 40 million people in the United States. Knowing the location of these wells, and the populations they serve, is important for identifying heavily used aquifers, locations susceptible to contamination, and populations potentially impacted by poor-quality groundwater. The 1990 census was...

Johnson, Tyler D.; Belitz, Kenneth; Lombard, Melissa

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Year Published: 2019

Nonlinearities in transmission dynamics and efficient management of vector-borne pathogens

Integrated Pest Management (IPM) is an approach to minimizing economic and environmental harm caused by pests, and Integrated Vector Management (IVM) uses similar methods to minimize pathogen transmission by vectors. The risk of acquiring a vector-borne infection is often quantified using the density of infected vectors. The relationship between...

Ginsberg, Howard S.; Couret, Jannelle

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Year Published: 2019

Genetic tagging in the Anthropocene: Scaling ecology from alleles to ecosystems

The Anthropocene is an era of marked human impact on the world. Quantifying these impacts 51 has become central to understanding the dynamics of coupled human-natural systems, resource52 dependent livelihoods, and biodiversity conservation. Ecologists are facing growing pressure to 53 quantify the size, distribution, and trajectory of wild...

Clayton T Lamb; Adam T Ford; Michael Proctor; Royle, Andy; Garth Mowat

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Year Published: 2019

Effect of amphibian chytrid fungus (Batrachochytrium dendrobatidis) on apparent survival of frogs and toads in the western USA

Despite increasing interest in determining the population-level effects of emerging infectious diseases on wildlife, estimating effects of disease on survival rates remains difficult. Even for a well-studied disease such as amphibian chytridiomycosis (caused by the fungus Batrachochytrium dendrobatidis [Bd]), there are few estimates of...

Russell, Robin E.; Halstead, Brian J.; Mosher, Brittany; Muths, Erin L.; Adams, Michael J.; Campbell Grant, Evan H.; Fisher, Robert N.; Kleeman, Patrick M.; Backlin, Adam R.; Pearl, Christopher; Honeycutt, R. Ken; Hossack, Blake R.

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Year Published: 2019

Energy depletion and stress levels of Sockeye Salmon migrating at the northern edge of their distribution

The physiological challenge for anadromous fish to migrate upriver is influenced by river temperature, but the impacts of river temperature can be difficult to predict due to an incomplete understanding of how temperature influences migration costs, especially in high‐latitude (>60°N) ecosystems. To assess temperature influences on migrating...

Carey, Michael P.; Keith, Kevin D.; Schelske, Merlyn; Lean, Charlie; McCormick, Stephen D.; Regish, Amy M.; Zimmerman, Christian E.

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Year Published: 2019

Estimating connectivity of hard clam (Mercenaria mercenaria) and eastern oyster (Crassostrea virginica) larvae in Barnegat Bay

Many marine organisms have a well-known adult sessile stage. Unfortunately, our lack of knowledge regarding their larval transient stage hinders our understanding of their basic ecology and connectivity. Larvae can have swimming behavior that influences their transport within the marine environment. Understanding the larval stage provides insight...

Goodwin, J.D.; Munroe, D.M.; Defne, Zafer; Ganju, Neil Kamal; Vasslides, James

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Year Published: 2019

Managing the trifecta of disease, climate, and contaminants: Searching for robust choices under multiple sources of uncertainty

Wood frogs, like other amphibian species worldwide, are experiencing population declines due to multiple stressors. In the northeastern United States, wood frog declines are thought to result from a reduction in successful metamorphosis in part due to climate change, disease (specifically ranavirus) and contaminant exposure. The presence of...

Smalling, Kelly; Eagles-Smith, Collin; Katz, Rachel A.; Grant, Evan

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Year Published: 2019

Early genetic outcomes of American black bear reintroductions in the Central Appalachians, USA

Habitat loss and overexploitation extirpated American black bears (Ursus americanus) from most of the Central Appalachians, USA, by the early twentieth century. To attempt to restore bears to the southwestern portion of this region, 2 reintroductions that used small founder groups (n = 27 and 55 bears), but different release methods (hard versus...

Murphy, Sean M.; Hast, John T.; Augustine, Ben C.; Weisrock, David W.; Clark, Joseph D.; Kocka, David. M; Ryan, Christopher W.; Sajecki, Jaime L.; Cox, John J.

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Rapid Deployment Gage in Soldier Pond, Maine
May 2, 2018

Rapid Deployment Gage in Soldier Pond, Maine

USGS field crews installed a temporary rapid deployment gage on May 2, 2018, at Soldier Pond in the Fish River to monitor flooding near Fort Kent in Maine.  

Rapid Deployment Gage in Soldier Pond, Maine
May 2, 2018

Rapid Deployment Gage in Soldier Pond, Maine

USGS field crews installed a temporary rapid deployment gage on May 2, 2018, at Soldier Pond in the Fish River to monitor flooding near Fort Kent in Maine. 

Aerial image of Woods Hole Coastal and Marine Science Center's Quissett Campus
May 1, 2018

Bird's eye view of Woods Hole's Quissett Campus, MA

View from a drone!  Aerial view of Woods Hole Coastal and Marine Science Center's Quissett Campus.

A boat floating on calm, shallow waters with mountains far off in the distance.
April 30, 2018

Israel Oceanographic and Limnological Institute research boat Lillian

The Israel Oceanographic and Limnological Institute research boat Lillian on its way to deploy receivers in the Sea of Galilee to record data during an April, 2018 experiment to image the deep structure of the Dead Sea fault in Israel.

An instrument attached to a floatation orb floats in calm water alongside a boat.
April 30, 2018

Seismic receiver

One of 40 seismic receivers modified to work in water and anchored to the bottom of the Sea of Galilee in Israel's Dead Sea fault zone.

Two men stand in a room looking at something on a table in the background, room filled with large trunks with equipment inside.
April 30, 2018

Downloading data from seismic receivers

Working in a temporary lab in Kibbutz Moran, Lloyd Carothers (left, IRIS-PASSCAL) and Eldad Levi (Geophysical Institute of Israel) download data from seismic receivers (in blue and yellow boxes) retrieved after completion of the Dead Sea fault experiment.

USGS team and R/V Savannah crew prepare to lower the quadpod deployed at the offshore
April 25, 2018

Equipment recovery off Matanzas Inlet, FL

he USGS team and R/V Savannah crew prepare to lower the quadpod deployed at the offshore site onto the deck during recovery operations.  Note all the hairy encrusting organisms that grew in 3 months.

USGS staff uses a radio to determine if an Acoustic Backscatter sensor (white circle) is still operating
April 25, 2018

Can you hear me now?

Steve Suttles (USGS) uses a radio to determine if an Acoustic Backscatter sensor (white circle) is still operating at the end of the deployment.

Drone Pilot Training
April 24, 2018

Drone Pilot Training!

Elizabeth Pendleton and Seth Ackerman of the Woods Hole Coastal and Marine Science Center at A-450 drone pilot training in Gainesville, Florida in January 2018. Drone pilot training was provided by the DOI Office of Aviation Services (OAS), and was also attended by employees from USGS water and volcano centers, other DOI agencies, and the US Forest Service.

Drone Pilot Training
April 24, 2018

Drone Pilot Training!

Elizabeth Pendleton and Seth Ackerman of the Woods Hole Coastal and Marine Science Center at A-450 drone pilot training in Gainesville, Florida in January 2018. Drone pilot training was provided by the DOI Office of Aviation Services (OAS), and was also attended by employees from USGS water and volcano centers, other DOI agencies, and the US Forest Service.

Drone Pilot Training Selfie
April 24, 2018

Drone Pilot Training!

Elizabeth Pendleton and Seth Ackerman of the Woods Hole Coastal and Marine Science Center at A-450 drone pilot training in Gainesville, Florida in January 2018. Drone pilot training was provided by the DOI Office of Aviation Services (OAS), and was also attended by employees from USGS water and volcano centers, other DOI agencies, and the US Forest Service.

Drone operations conducted at Sandy Neck Beach, Barnstable, MA
April 24, 2018

Drone Ops, Sandy Neck Beach, Barnstable, MA

Drone operations conducted at Sandy Neck Barnstable, MA.  Pilots Elizabeth Pendleton and Seth Ackerman are flying a 3DR Solo quadcopter collecting images to be used in the photogrammetry software package, photoscan, to ultimately create 3d surface models.