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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February Photo Contest

February Photo Contest

Check out the winning photographs in the February 2020 Photo Contest! Categories include People, USGS at Work, Where We Work, and Honorable Mention

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Regions L2 Landing Page Tabs

Filter Total Items: 778
Date published: January 16, 2013
Status: Completed

EPA, USGS, with USFWS Release New Report on the Extent and Severity of Toxic Contaminants in the Chesapeake Bay and its Watershed

Report summarizing existing information on the extent and severity of the occurrence of toxic contaminants in the Chesapeake Bay and its watershed.

Contacts: Scott Phillips
Date published: January 1, 2013
Status: Active

Determining Nutrient and Sediment Loads and Trends in the Chesapeake Bay Watershed by Using An Enhanced Statistical Technique

As the largest and most productive estuary in North America, Chesapeake Bay is a vital ecological and economic resource. In recent decades, however, the bay and its tributaries have been degraded by excessive inputs of nutrients (nitrogen and phosphorus) and sediment from contributing watersheds, and in 1998, the Chesapeake Bay and its tidal tributaries were listed as “impaired” under the...

Contacts: Scott Phillips
Date published: December 21, 2010

Bedford County Water Monitoring Network

Bedford County consists of 764 square miles in the west-central portion of Virginia's central plateau. Its boundaries include the Blue Ridge Mountains on the west, the James River on the northeast and Smith Mountain Lake on the south, and Campbell County on the east. The area has a rolling to hilly terrain with elevations from 800 feet to 4,200 feet above sea level. The County contains the...

Contacts: Kurt McCoy
Date published: October 25, 2010

Virginia Chloride Monitoring Network

Objectives of the program are to (1) evaluate the spatial and temporal distribution of chloride concentrations in the aquifers, (2) evaluate the factors that affect the spatial and temporal distributions of chloride, and (3) assess the potential for upconing or lateral intrusion of saline water in the aquifers.

Date published: August 24, 2010
Status: Active

Virginia Coastal Plain Aquifer Analysis

Groundwater is a heavily used source of water in the Virginia Coastal Plain. Long term and widespread groundwater withdrawals have resulted in regional water-level declines, and created the potential for saltwater intrusion. Sound management of this vital resource relies on continual improvement of the scientific understanding of the aquifer system.

Contacts:
Date published: May 25, 2010

South River Mercury TMDL

The objective of the South River Mercury TMDL study is to develop a better understanding of methyl mercury cycling in the South River and calculate mercury loading reductions that would protect fish from high mercury concentrations.

Date published: March 31, 2010

Continuous Water-Quality Monitoring for the Roanoke River Flood Reduction Project

This project:

- Initiates a continuous water-quality monitoring study for the Roanoke River in the area upstream and downstream of the RRFRP project area. 
- Provides a mechanism for detecting short- and long-term changes in Roanoke River suspended sediment water quality during and after the RRFRP implementation.
- Assesses trends in suspended sediment water quality in this...

Date published: March 31, 2010

Continuous Water-Quality Monitoring in Indian Creek

The primary objective of the USGS monitoring effort will be to identify whether the construction of the Indian Creek pipeline crossings will adversely impact the sediment water quality in Indian Creek. To accomplish this goal, continuous real-time water-quality monitoring will be the primary focus of the effort.

Contacts: John D Jastram
Date published: March 31, 2010

Roanoke River Study

The U.S. Army Corps of Engineers (USACE), Wilmington District and the City of Roanoke, Virginia began construction of a congressionally authorized Roanoke River Flood Reduction Project (RRFRP) in 2005. RRFRP implementation activities include: construction activities, stream bank vegetation changes, and floodplain geometry changes which are occurring in a complicated urban river system. These...

Date published: March 31, 2010

Virginia Bankfull Regional Curves Project

Properly developed regional curves for a specific hydro-physiographic province are an invaluable tool for stream restoration design. Development of regional curves specifically for physiographic provinces of Virginia will enhance the ability to develop successful natural channel designs based on climatic, geologic, and hydrologic characteristics of specific regions of the state.

Contacts: Jennifer L Rapp
Date published: January 1, 2009

Lower Mississippi River National Rivers and Streams Assessment

Short Title: Mississippi River NRSA

Project Chief: Billy Justus

Cooperator: U.S. Environmental Protection Agency

Project Time Frame: 2008 - 2009

The USGS Arkansas and Missouri Water Science Centers (WSC) are conducting a study for the U.S. Environmental...

Contacts: Billy G Justus
Filter Total Items: 15,592
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Year Published: 2017

Assessment of critical minerals: Updated application of an early-warning screening methodology

Increasing reliance on non-renewable mineral resources reinforces the need for identifying potential supply constraints before they occur. The US National Science and Technology Council recently released a report that outlines a methodology for screening potentially critical minerals based on three indicators: supply risk (R), production growth (G...

McCullough, Erin A.; Nassar, Nedal

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Year Published: 2017

Restoring tides to reduce methane emissions in impounded wetlands: A new and potent Blue Carbon climate change intervention

Coastal wetlands are sites of rapid carbon (C) sequestration and contain large soil C stocks. Thus, there is increasing interest in those ecosystems as sites for anthropogenic greenhouse gas emission offset projects (sometimes referred to as “Blue Carbon”), through preservation of existing C stocks or creation of new wetlands to increase future...

Kroeger, Kevin D.; Crooks, Stephen; Moseman-Valtierra, Serena; Tang, Jianwu
Kroeger, K.D., Crooks, S., Moseman-Valtierra, S., Tang, J., 2017, Restoring tides to reduce methane emissions in impounded wetlands: A new and potent Blue Carbon climate change intervention: Scientific Reports, v. 7, no. 11914 doi:10.1038/s41598-017-12138-4.

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Year Published: 2017

Standardization and application of an index of community integrity for waterbirds in the Chesapeake Bay, USA

In recent decades, there has been increasing interest in the application of ecological indices to assess ecosystem condition in response to anthropogenic activities. An Index of Waterbird Community Integrity was previously developed for the Chesapeake Bay, USA. However, the scoring criteria were not defined well enough to generate scores for new...

Prosser, Diann J.; Nagel, Jessica L.; Marban, Paul; Ze, Luo; Day, Daniel D.; Erwin, R. Michael
Linhart, S. B., Blom, F. S., Dasch, G. J., Engeman, R. M., and Olsen, G. H., 1988, Field evaluation of padded jaw coyote traps: effectiveness and foot injury: Proceedings of the Vertebrate Pest Conference, v. 13, p. 226-229.

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Year Published: 2017

Sensitivity of the downward to sweeping velocity ratio to the bypass flow percentage along a guide wall for downstream fish passage

Partial-depth impermeable guidance structures (or guide walls) are used as a method to assist in the downstream passage of fish at a hydroelectric facility. However, guide walls can result in a strong downward velocity causing the approaching fish to pass below the wall and into the direction of the turbine intakes. The objective of this study was...

Mulligan, Kevin; Towler, Brett; Haro, Alexander J.; Ahlfeld, David P.
Mulligan, K. B., Towler, B., Haro, A., & Ahlfeld, D. P. (2017). Sensitivity of the downward to sweeping velocity ratio to the bypass flow percentage along a guide wall for downstream fish passage. Ecological Engineering, 109(Part A), pp. 10-14.

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Year Published: 2017

Estimated fecal coliform bacteria concentrations using near real-time continuous water-quality and streamflow data from five stream sites in Chester County, Pennsylvania, 2007–16

Several streams used for recreational activities, such as fishing, swimming, and boating, in Chester County, Pennsylvania, are known to have periodic elevated concentrations of fecal coliform bacteria, a type of bacteria used to indicate the potential presence of fecally related pathogens that may pose health risks to humans exposed through water...

Senior, Lisa A.
Senior, L.A., 2017, Estimated fecal coliform bacteria concentrations using near real-time continuous water-quality and streamflow data from five stream sites in Chester County, Pennsylvania, 2007–16: U.S. Geological Survey Scientific Investigations Report 2017–5075, 46 p., https://doi.org/10.3133/sir20175075.

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Year Published: 2017

Deep-sea coral research and technology program: Alaska deep-sea coral and sponge initiative final report

Deep-sea coral and sponge ecosystems are widespread throughout most of Alaska’s marine waters. In some places, such as the central and western Aleutian Islands, deep-sea coral and sponge resources can be extremely diverse and may rank among the most abundant deep-sea coral and sponge communities in the world. Many different species of fishes and...

Rooper, Chris; Stone, Robert P.; Etnoyer, Peter; Conrath, Christina; Reynolds, Jennifer; Greene, H. Gary; Williams, Branwen; Salgado, Enrique; Morrison, Cheryl L.; Waller, Rhian G.; Demopoulos, Amanda W.J.
Rooper,C, R. Stone, P. Etnoyer, C. Conrath, J. Reynolds, H.G. Greene, B. Williams, E. Salgado, C. Morrison, R. Waller, and A. Demopoulos. 2017. Deep-Sea Coral Research and Technology Program: Alaska Deep-Sea Coral and Sponge Initiative Final Report. NOAA Tech. Memo. NMFS-OHC-2, 65 p.

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Year Published: 2017

Loads and yields of deicing compounds and total phosphorus in the Cambridge drinking-water source area, Massachusetts, water years 2009–15

The source water area for the drinking-water supply of the city of Cambridge, Massachusetts, encompasses major transportation corridors, as well as large areas of light industrial, commercial, and residential land use. Because of the large amount of roadway in the drinking-water source area, the Cambridge water supply is affected by the usage of...

Smith, Kirk P.
Smith, K.P., 2017, Loads and yields of deicing compounds and total phosphorus in the Cambridge drinking-water source area, Massachusetts, water years 2009–15: U.S. Geological Survey Scientific Investigations Report 2017–5047, 52 p., https://doi.org/10.3133/sir20175047.

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Year Published: 2017

Climate-driven variability in the occurrence of major floods across North America and Europe

Concern over the potential impact of anthropogenic climate change on flooding has led to a proliferation of studies examining past flood trends. Many studies have analysed annual-maximum flow trends but few have quantified changes in major (25–100 year return period) floods, i.e. those that have the greatest societal impacts. Existing major-...

Hodgkins, Glenn A.; Whitfield, Paul H.; Burn, Donald H.; Hannaford, Jamie; Renard, Benjamin; Stahl, Kerstin; Fleig, Anne K.; Madsen, Henrik; Mediero, Luis; Korhonen, Johanna; Murphy, Conor; Wilson, Donna
Hodgkins, G.A., Whitfield, P.H., Burn, D.H., Hannaford, J., Renard, B., Stahl, K., Fleig, A.K., Madsen, H., Mediero, L., Korhonen, J. and Murphy, C., 2017, Climate-driven variability in the occurrence of major floods across North America and Europe: Journal of Hydrology, v. 552, p. 704-717.

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Year Published: 2017

Conservation endocrinology

Endocrinologists can make significant contributions to conservation biology by helping to understand the mechanisms by which organisms cope with changing environments. Field endocrine techniques have advanced rapidly in recent years and can provide substantial information on the growth, stress, and reproductive status of individual animals,...

McCormick, Stephen D.; Romero, L. Michael
McCormick, S.D. and Romero, J.M. 2017. Conservation Endocrinology. Bioscience 67: 429-442. doi:10.1093/biosci/bix026

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Year Published: 2017

Estimating total maximum daily loads with the Stochastic Empirical Loading and Dilution Model

The Massachusetts Department of Transportation (DOT) and the Rhode Island DOT are assessing and addressing roadway contributions to total maximum daily loads (TMDLs). Example analyses for total nitrogen, total phosphorus, suspended sediment, and total zinc in highway runoff were done by the U.S. Geological Survey in cooperation with FHWA to...

Granato, Gregory; Jones, Susan Cheung
Granato, G.E., and Jones, S.C., 2017, Estimating Total Maximum Daily Loads with the Stochastic Empirical Loading and Dilution Model: Transportation Research Record, Journal of the Transportation Research Board, No. 2638, p. 104-112.

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Year Published: 2017

Linkages and feedbacks in orogenic systems: An introduction

Orogenic processes operate at scales ranging from the lithosphere to grain-scale, and are inexorably linked. For example, in many orogens, fault and shear zone architecture controls distribution of heat advection along faults and also acts as the primary mechanism for redistribution of heat-producing material. This sets up the thermal structure of...

Thigpen, J. Ryan; Law, Richard D.; Merschat, Arthur J.; Stowell, Harold
Thigpen, J.R., Law, R.D., Merschat, A.J., and Stowell, H.H., 2017, Linkages and feedbacks in orogenic systems: An introduction, in Law, R.D., Thigpen, J.R., Merschat, A.J., and Stowell, H.H., eds., Linkages and Feedbacks in Orogenic Systems: Geological Society of America Memoir 213, p. vii–xv, doi:10.1130/2017.1213(00).

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Year Published: 2017

Taxonomic reassessment of bats from Castelnau’s expedition to South America (1843–1847): Phyllostoma angusticeps Gervais, 1856 (Chiroptera, Phyllostomidae)

Gervais, in 1856, described the bats collected during Castelnau’s expedition through South America (1843–1847). We report that Phyllostoma angusticeps (Gervais, 1856), long treated as a junior synonym of Phyllostomus discolor(Wagner, 1843), is not a representative of the genus Phyllostomus. In fact, as we demonstrate, it...

Arroyo-Cabrales, Joaquín; Gardner, Alfred; Sigé, Bernard; Catzeflis, Francois; McCarthy, Timothy J.
Arroyo-Cabrales, J., Gardner, A. L., Sige, B., Catzeflis, F., and McCarthy, T. J., 2017, Taxonomic reassessment of bats from Castelnau’s expedition to South America (1843–1847): Phyllostoma angusticeps Gervais, 1856 (Chiroptera, Phyllostomidae): Mammalia, v. 81, no. 5, p. 513-517.

Filter Total Items: 1,035
map of acoustic backscatter intensity of the seafloor in Buzzards Bay, MA
December 31, 2012

Acoustic Backscatter Intensity

Acoustic backscatter intensity data are an indication of the relative hardness or softness of the sea floor, which is closely related to sediment texture and cohesion. The map shows acoustic backscatter intensity of the sea floor in the Buzzards Bay, Massachusetts. In general, higher values (light tones) represent rock, boulders, cobbles, gravel, shell reefs, and coarse

...
Porch hangs in mid-air after flooding, Seaside Heights, NJ
November 30, 2012

Hurricane Sandy flood effects 2012, Seaside Heights, NJ

Hurricane Sandy struck the New Jersey shore Oct. 29-31, 2012. This house in Seaside Heights, NJ lost part of its foundation, leaving a front porch suspended in mid-air.

Flood damage to houses, cars and a street in Seaside Heights, NJ
November 30, 2012

Hurricane Sandy flood effects 2012, Seaside Heights NJ

Hurricane Sandy struck the New Jersey shore Oct. 29-31, 2012. Houses, cars and a street in Seaside Heights, NJ were covered in beach sand after Hurricane Sandy's storm tide receded.

House partly collapsed after flooding in Mantoloking, NJ.
November 30, 2012

Hurricane Sandy flood effects 2012, Mantoloking, NJ

Hurricane Sandy struck the New Jersey shore Oct. 29-31, 2012. This house in Mantoloking, NJ was partly collapsed after Hurricane Sandy's storm tide receded.

Concord mine
November 8, 2012

Concord Heavy-Mineral Sands Mine

The Concord heavy-mineral-sands mine of Iluka Resources in south-central Virginia. The mine excavates sand-silt deposits that contain about 4 percent heavy minerals, which were deposited along a shoreline that existed here between 3.5 and 3.0 million years ago. These

...
man standing in shallow waves on beach operating adcp
November 6, 2012

Utilizing ADCP on Long Island after Hurricane Sandy

USGS hydrologist operating Acoustic Doppler Current Profiler (ADCP) on Long Island shore after Hurricane Sandy.

water channel through sand barrier on Long Island
November 5, 2012

Fire Island Island Breach - Hurricane Sandy

Oblique aerial photograph Fire Island, New York. The
view is looking northwest across Fire Island towards Great South Bay. This
location is within Fire Island National Seashore near Old Inlet—a very narrow
portion of the island that has experienced breaching in previous large storms.
The island breached during Hurricane Sandy, creating a new inlet.

Barrier-island breach created by Hurricane Sandy at Fire Island National Seashore, N.Y.
November 5, 2012

Barrier-island breach at Fire Island National Seashore

Barrier-island breach created by Hurricane Sandy at Fire Island National Seashore, N.Y.

Installing storm surge sensors before Hurricane Sandy
October 28, 2012

USGS scientists, Michael Noll and Amy Simonson, installing storm surge sensors before Hurricane Sandy

USGS scientists, Michael Noll and Amy Simonson, installing storm surge sensors before Hurricane Sandy