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: August 12, 2015
Status: Active

Hydrologic-Data Collection in the Five Boroughs of New York City

Problem Previous hydrologic studies have indicated that there may be sufficient water resources underlying Queens, Kings, Richmond, New York, and Bronx Counties for use as a supplemental water supply in times of drought or other emergency. An extensive ground-water and surface-water monitoring program is necessary to provide a comprehensive hydrologic data set for use in ongoing and future...

Contacts: Irene J Fisher
Date published: August 12, 2015
Status: Active

Surface-Water Data Collection in New York

Problem Surface-water information is needed for planning, design, hazard warning, and operation and management in water-related fields such as water supply, hydroelectric power, flood control, irrigation, bridge and culvert design, wildlife management, pollution abatement, flood-plain management, and water-resources development. Appropriate historical and real-time surface-water data, such...

Date published: August 12, 2015
Status: Active

Monitoring Tidal Water Elevation and Water Quality to Assess Tidal Wetland Loss in Four Embayments of Long Island Sound, New York

Introduction Recent trends analysis examining the effectiveness of tidal wetland regulations and the regulatory program of the New York State Department of Environmental Conservation (NYSDEC) revealed that the regulations and regulatory program were highly effective in stemming the historic "fill and build" activities. However, the trends also revealed that tidal wetlands—specifically, low m...

Date published: August 11, 2015
Status: Active

The Federal-State Groundwater Monitoring Network in New York

The United States Geological Survey (USGS), in cooperation with the New York State Department of Environmental Conservation (NYSDEC), monitors a network of observation wells throughout New York to provide current information on the effect of climatic conditions on groundwater levels. At present (2015), there are 95 observation wells in unconsolidated and bedrock aquifers, all of which are eq...

Contacts: John Williams
Date published: August 11, 2015
Status: Active

Simulation of migration of brine and saline water from the flooded Retsof salt mine in the Genesee Valley, New York

Problem - Roof collapses in the Retsof salt mine near Geneseo N.Y. in March and April of 1994 propagated upward through overlying bedrock, forming a 600-ft-long rubble zone or chimney that connected the mine to a glacial aquifer system and created sinkholes at land surface. Fresh water from the glacial aquifers flowed downward into the mine until the mine was completely flooded in January 1...

Date published: August 11, 2015
Status: Active

Estuarine Physical Response to Storms—Jamaica Bay

Problem Coastal communities are susceptible to damage from coastal storms and associated storm surge, and although tidal wetlands provide a buffer against shoreline erosion and aid in shoreline stabilization, they too are vulnerable to the action of storms. Tidal wetland dynamics need to be better understood, as they are also intrinsically valuable as nursery, feeding, and refuge areas for m...

Date published: August 11, 2015
Status: Active

Flood-Inundation Maps for the West Branch Delaware River, Delhi, New York

Delhi has experienced severe flooding along the West Branch Delaware River (fig. 1); most notably during January, 1996, June, 2006, and October, 2010, and August, 2011. Emergency responders would benefit from a library of flood-inundation maps that are referenced to the stages recorded at the USGS streamgage upstream from Delhi. By referring to the appropriate map, emergency responders could...

Contacts: William F Coon
Date published: August 11, 2015
Status: Active

Southeastern New York Tide-Telemetry and Coastal-Flood-Warning System

The coastal areas of southeastern New York (fig. 1) are highly vulnerable to tidal flooding (fig. 2). Timely evacuation of people from flood-threatened areas in advance of approaching hurricanes and nor'easters (northeast coastal storms) requires adequate flood-warning time. To begin addressing this need for immediate information on coastal flooding, the U.S. Geological Survey (USGS), in...

Date published: August 11, 2015
Status: Active

An Assessment of Forest Health and Soil Nutrient Status to Determine the Effects of Logging Practices on Water Quality in New York City's West-of-Hudson Watersheds

The growth of temperate forests is typically limited by the availability of nitrogen. Elevated concentrations of nitrate in some Catskill Mountain streams, which are tributary to New York City's water-supply reservoirs west of the Hudson River, indicate that the forests of this region are at the early stages of nitrogen saturation. That is, nitrogen is available in excess of the amount utili...

Date published: August 11, 2015
Status: Active

Spatiotemporal trends in fish assemblages of the Mohawk River

Problem The mainstem of the Mohawk River extends from Lake Delta Dam near Rome, NY downstream to its confluence with the Hudson River near Cohoes, NY. It supports a diverse fishery that is used extensively by recreational anglers. Smallmouth bass (Micropterus dolomieu) and walleye (Sander vitreus) are among the most popular game species with anglers but past biological surveys have...

Contacts: Barry P Baldigo, Scott George, Scott Wells
Date published: August 11, 2015
Status: Active

An Integrated Assessment of the Recovery of Surface Waters from Reduced Levels of Acid Precipitation in the Catskill and Adirondack Regions, New York

Problem - Acidic precipitation has affected forested and aquatic ecosystems in New York, particularly in the Adirondack and Catskill regions. Acidification of surface waters and deleterious effects on fish and other biota have been well documented in both these regions. Despite reduced levels of acidity in atmospheric deposition over the past 20 years across New York and the northeastern Uni...

Contacts: Douglas A Burns
Date published: August 11, 2015
Status: Active

Aquifer Appraisal at the Tunison Laboratory of Aquatic Science, Cortland, New York

Problem - The Ithaca Subdistrict Office of the U.S. Geological Survey (USGS) is providing technical assistance to the USGS, Biological Resources Division (BRD), at the Tunison Laboratory of Aquatic Science (TLAS) in an investigation of the availability of fresh ground water. An expansion in the water supply at the laboratory is needed for a proposed spawning facility for salmon strains that...

Contacts: David A Eckhardt
Filter Total Items: 16,199
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Year Published: 2018

Estimates of nitrate loads and yields from groundwater to streams in the Chesapeake Bay watershed based on land use and geology

The water quality of the Chesapeake Bay may be adversely affected by dissolved nitrate carried in groundwater discharge to streams. To estimate the concentrations, loads, and yields of nitrate from groundwater to streams for the Chesapeake Bay watershed, a regression model was developed based on measured nitrate concentrations from 156 small...

Terziotti, Silvia; Capel, Paul D.; Tesoriero, Anthony J.; Hopple, Jessica A.; Kronholm, Scott C.
Terziotti, Silvia, Capel, P.D., Tesoriero, A.J., Hopple, J.A., and Kronholm, S.C., 2017, Estimates of nitrate loads and yields from groundwater to streams in the Chesapeake Bay watershed based on land use and geology: U.S. Geological Survey Scientific Investigations Report 2017–5160, 20 p., https://doi.org/10.3133/sir20175160.

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Year Published: 2018

Changes in freshwater mussel communities linked to legacy pollution in the Lower Delaware River

Freshwater mussels are among the most-imperiled organisms worldwide, although they provide a variety of important functions in the streams and rivers they inhabit. Among Atlantic-slope rivers, the Delaware River is known for its freshwater mussel diversity and biomass; however, limited data are available on the freshwater mussel fauna in the lower...

Blakeslee, Carrie J.; Silldorff, Erik L.; Galbraith, Heather S.
Blakeslee, C.J., Silldorff, E.L., and Galbraith, H.S. 2018. Changes in freshwater mussel communities linked to legacy pollution in the lower Delaware River. Northeastern Naturalist, 25(1): 101-116.

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Year Published: 2018

Carbon budget of tidal wetlands, estuaries, and shelf waters of eastern North America

Carbon cycling in the coastal zone affects global carbon budgets and is critical for understanding the urgent issues of hypoxia, acidification, and tidal wetland loss. However, there are no regional carbon budgets spanning the three main ecosystems in coastal waters: tidal wetlands, estuaries, and shelf waters. Here we construct such a budget for...

Najjar, R.G.; Herrmann, M.; Alexander, Richard B.; Boyer, E. W.; Burdige, D. J.; Butman, D.; Cai, W.-J.; Canuel, E.A.; Chen, R.F.; Friedrichs, M. A. M.; Feagin, R.A.; Griffith, P. C.; Hinson, A.L.; Holmquist, J.R.; Hu, X.; Kemp, W.M.; Kroeger, Kevin D.; Mannino, A.; McCallister, S.L.; McGillis, W.R.; Mulholland, M.R.; Pilskaln, C. H.; Salisbury, J.; Signorini, S. R.; St. Laurent, P.; Tian, H.; Tzortziou, M; Vlahos, P.; Wang, Z. A.; Zimmerman, R. C.

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Year Published: 2018

Sensitivity of Na+/K+-ATPase isoforms to acid and aluminum explains differential effects on Atlantic salmon osmoregulation in fresh water and seawater

Atlantic salmon (Salmo salar) smolts are sensitive to acid rain and associated increases in dissolved inorganic aluminum (Al) resulting in decreased seawater tolerance at this critical life stage. Salmon have two major isoforms of the catalytic alpha subunit of Na+/K+-ATPase (NKA), with NKAα1a being the major freshwater (FW) isoform and NKAα1b the...

Regish, Amy M.; Kelly, John T.; O'Dea, Michael F.; McCormick, Stephen D.

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Year Published: 2018

Freshwater mussel salvage and relocation at the Pond Eddy Bridge, Delaware River, New York and Pennsylvania

In a study conducted by the U.S. Geological Survey, in cooperation with the Pennsylvania Department of Transportation, freshwater mussels were salvaged and relocated from the anticipated zone of impact for the Pond Eddy Bridge construction project in New York and Pennsylvania. Five 25-meter (m) by 25-m cells along the Pennsylvania bank of the...

Galbraith, Heather S.; Blakeslee, Carrie J.; Cole, Jeffrey C.
Galbraith, H.S., Blakeslee, C.J., and Cole, J.C., 2018, Freshwater mussel salvage and relocation at the Pond Eddy Bridge, Delaware River, New York and Pennsylvania: U.S. Geological Survey Open-File Report 2018–1009, 5 p., https://doi.org/10.3133/ofr20181009.

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Year Published: 2018

Anomalous bioaccumulation of lead in the earthworm Eisenoides lonnbergi (Michaelsen)

Lead concentrations in soil organisms are usually well below those in the associated soil and tend to decrease with each higher trophic level in a food chain. Earthworms of the species Eisenoides lonnbergi provide an exception to this observation, accumulating very high concentrations of lead from acidic soils. Earthworms belonging to...

Beyer, W. Nelson; Codling, Eton E.; Rutzke, Michael A.
Beyer, W. N., Codling, E. E., and Rutzke, M. A., 2018, Anomalous bioaccumulation of lead in the earthworm Eisenoides lonnbergi (Michaelsen): Environmental Toxicology and Chemistry, v. 37, no. 3, p. 914-919. https://doi.org/10.1002/etc.4031

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Year Published: 2018

Environmental contaminants of health-care origin: Exposure and potential effects in wildlife

A diverse range of fauna could be exposed to active pharmaceutical ingredients (APIs) via diet, dermal absorption or bioconcentration. Low level exposures of free-ranging wildlife to APIs has only been demonstrated for a few pathways (e.g., ingestion of fish in estuaries by piscivorous birds), and many remain hypothetical (e.g., ingestion of...

Bean, Thomas; Rattner, Barnett A.
Bean, T.G. and Rattner, B.A., 2018, Environmental Contaminants of Health-Care Origin: Exposure and Potential Effects in Wildlife, in Boxall, A.B.A. and Kookana, R.S., editors, Health Care and Environmental Contamination, Elsevier, Environmental Contamination 11, p. 87-122.

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Year Published: 2018

Molecular systematics and biodiversity of the Cryptotis mexicanus group (Eulipotyphla: Soricidae): two new species from Honduras supported

Small-eared shrews of the genus Cryptotis (Mammalia: Eulipotyphla: Soricidae) are widespread in the northern Neotropics. Systematic studies of these shrews over the past two decades have revealed previously undocumented morphological and species diversity, resulting in a quadrupling of the number of recognized species. Unfortunately, a...

Baird, Amy B.; McCarthy, Timothy J.; Trujillo, Robert G.; Kang, Yuan Yuan; Esmaeiliyan, Mehdi; Valdez, Joselyn; Woodman, Neal; Bickham, John W.
Baird, A. B., McCarthy, T. J., Trujillo, R. G., Kang, Y. Y., Esmaeiliyan, M., Valdez, J., Woodman, N., and Bickham, J. W., 2018, Molecular systematics and biodiversity of the Cryptotis mexicanus group (Eulipotyphla: Soricidae): two new species from Honduras supported: Systematics and Biodiversity, v. 16, no. 2, p. 108-117. https://doi.org/10.1080/14772000.2017.1333539

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Year Published: 2018

Species distribution modeling in regions of high need and limited data: waterfowl of China

BackgroundA number of conservation and societal issues require understanding how species are distributed on the landscape, yet ecologists are often faced with a lack of data to develop models at the resolution and extent desired, resulting in inefficient use of conservation resources. Such a situation presented itself in our attempt to develop...

Prosser, Diann J.; Ding, Changqing; Erwin, R. Michael; Mundkur, Taej; Sullivan, Jeffery D.; Ellis, Erle C.
Prosser, D. J., Ding, C., Erwin, R. M., Mundkur, T., Sullivan, J. D., and Ellis, E. C., 2018, Species distribution modeling in regions of high need and limited data: waterfowl of China: Avian Research, v. 9, Article 7, 14p. https://doi.org/10.1186/s40657-018-0099-4

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Year Published: 2018

U.S. Geological Survey - Virginia Department of Transportation: Bridge scour pilot study

BackgroundCost effective and safe highway bridge designs are required to ensure the long-term sustainability of Virginia’s road systems. The streamflows that, over time, scour streambed sediments from bridge piers inherently affect bridge safety and design costs. To ensure safety, bridge design must anticipate streambed scour at bridge piers over...

Austin, Samuel H.
Austin, S.H., 2018, U.S. Geological Survey - Virginia Department of Transportation: Bridge scour pilot study: U.S. Geological Survey Fact Sheet 2018–3006, 2 p., https://doi.org/10.3133/fs20183006.

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Year Published: 2018

Artificial light at night confounds broad-scale habitat use by migrating birds

With many of the world's migratory bird populations in alarming decline, broad-scale assessments of responses to migratory hazards may prove crucial to successful conservation efforts. Most birds migrate at night through increasingly light-polluted skies. Bright light sources can attract airborne migrants and lead to collisions with structures,...

McLaren, James D.; Buler, Jeffrey J.; Schreckengost, Tim; Smolinsky, Jaclyn A.; Boone, Matthew; van Loon, E. Emiel; Dawson, Deanna K.; Walters, Eric L.
McLaren, J. D., Buler, J. J., Schreckengost, T., smolinsky, J. A., Boone, M., van Loon, E., Dawson, D. K., and Walters, E. L., 2018, Artificial light at night confounds broad-scale habitat use by migrating birds: Ecology Letters, v. 21, no. 3, p. 356-364. https://doi.org/10.1111/ele.12902

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Year Published: 2018

Variability of hydrological droughts in the conterminous United States, 1951 through 2014

Spatial and temporal variability in the frequency, duration, and severity of hydrological droughts across the conterminous United States (CONUS) was examined using monthly mean streamflow measured at 872 sites from 1951 through 2014. Hydrological drought is identified as starting when streamflow falls below the 20th percentile streamflow value for...

Austin, Samuel H.; Wolock, David M.; Nelms, David L.
Austin, S.H., Wolock, D.M., and Nelms, D.L., 2018, Variability of hydrological droughts in the conterminous United States, 1951 through 2014: U.S. Geological Survey Scientific Investigations Report 2017–5099, 16 p., https://doi.org/10.3133/sir20175099.

Filter Total Items: 1,774
Photograph of USGS personnel testing water in a marsh
December 31, 2016

Testing the Water!

Jen Suttles,Woods Hole Coastal and Marine Science Center, collects water samples from a salt marsh tidal creek (East Falmouth, MA) for laboratory analysis of total organic carbon. These samples will be compared to data recorded by instrumentation deployed in an adjacent tidal creek as part of research efforts to quantify carbon dynamics in coastal ecosystems

Spor Mountain
December 31, 2016

Spor Mountain Rhyolite and Tuff

Overlying Spor Mountain rhyolite caprock and underlying Beryllium Tuff member. 

Image shows a sample of clinozoisite against a black background
December 31, 2016

Clinozoisite

This sample is clinozoisite, a calcium aluminum silicate mineral. It is mostly prized as a collectors mineral rather than a source of its industrial mineral commodities.

Sample provided by Carlin Green, USGS. Sample originated from Hachupa, Pakistan, and is 6.0cm in size.

Image shows a sample of cerussite on a black background
December 31, 2016

Sample of Cerussite

This sample is of the mineral cerussite, once an important source of lead for paints and pigments. With the phasing out of lead-based paints, cerussite is now mostly valued as a collectors mineral.

Sample provided by Carlin Green, USGS. Sample originated from Mibladen, Morocco, and is 5.6cm in size.

mine pit
December 31, 2016

Spor Mountain Open Pit

Spor Mountain open pit; mineralized tuff in foreground; mine staff and USGS scientists collecting samples.

Image shows a sample of elbaite on a black background
December 31, 2016

Elbaite

Elbaite is one of the best-known members of the tourmaline mineral family, particularly for its high-quality gemstones. Read more about the tourmaline mineral family here

Sample provided by Carlin Green, USGS. Sample originated from Himalaya Mine, California, and is 4

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December 31, 2016

USGS Phosphorus Filter

Take a short look at a low cost phosphorus removal water filter the USGS has been working on for several years. 
 

Image shows a sample of epidote and quartz against a black background
December 31, 2016

Epidote and Quartz

Epidote is a silicate mineral used mostly as a semiprecious gemstone.

Sample provided by Carlin Green, USGS. Sample originated from Prince of Wales Island, Alaska, and is 6.0cm in size.