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: June 13, 2017
Status: Active

Improving Time of Concentration Estimates for Small Rural Watersheds in the Appalachian Plateaus Physiographic Province, West Virginia

Many culverts and other drainage structures in rural West Virginia are located in small streams or valleys draining 100 acres or less. Design of these structures in West Virginia is generally done using discharge estimates made with widely used and well accepted methods. However, these methods require information including flow-segment length and channel geometry that are poorly characterized...

Date published: June 9, 2017
Status: Active

Responses of fish assemblages to changing environmental conditions in the Neversink River and Rondout Creek

Problem The Neversink River and Rondout Creek are historic trout fishing and recreational streams in the heart of the Catskill Mountains of southeastern NY. Waters throughout upper reaches of both rivers currently range from neutral to severely acidic due to deposition of acid rain throughout their watersheds. Fish surveys conducted by the USGS during the late 1980s and early 1990s found that...

Date published: June 9, 2017
Status: Active

Using Microbial Source Tracking to Identify Pollution Sources in Pathogen Impaired Embayments in Long Island, New York

Problem The presence of pathogens in Long Island marine embayments and the hazards they pose to marine resources and human health is of increasing concern. Many waterbodies on the New York State Section 303(d) List of Impaired Waters have pathogens listed as the primary pollutant that are suspected to originate from urban/storm runoff. There is neither a clear understanding of the relative...

Date published: June 8, 2017

Long Island - Location and Physical Setting

Long Island, the eastern-most part of New York State, extends east-northeastward roughly parallel to the Connecticut coastline. It is bounded on the north by Long Island Sound, on the east and south by the Atlantic Ocean, and on the west by New York Bay and the East River. Long Island is joined to the mainland specifically, to the Borough of the Bronx, which is one of the five boroughs of New...

Contacts: Jack Monti
Date published: June 7, 2017

Long Island Topography

The present landforms of Long Island are the result of many geologic processes, some of which began many millions of years ago and some of which began only recently. Most of the major features of the present-day topography, however, are related to the last glaciation, which ended approximately 22,000 years ago.

Contacts: Jack Monti
Date published: June 6, 2017
Status: Completed

Long Island Population

About 7.56 million people lived on Long Island in 2010. Of these, about 2.50 million are in Kings County, 2.23 million in Queens County, 1.34 million in Nassau County, and 1.49 million in Suffolk County.

Contacts: Jack Monti
Date published: June 5, 2017

Long Island Land Use and Land Cover

On Long Island, land use includes the human activities and management practices for which land is used. Land cover is a mosaic of developed, forest, agriculture, and wetlands areas. Both land use and land cover are usually discussed in similar environments. The National Land Cover Database (NLCD) serves as the definitive LANDSAT-based, 30-meter resolution, land cover database for the Nation....

Contacts: Jack Monti
Date published: June 4, 2017

Long Island Freshwater

Long Island is surrounded by an almost limitless amount of saltwater in the Atlantic Ocean, in the Long Island Sound, and in the many bays bordering Long Island. Although the salty water is important to the economy of the area and is of significant recreational value, this website is mainly concerned with the fresh water of Long Island, which from many standpoints, is even more important than...

Contacts: Jack Monti
Date published: June 3, 2017

Hydrologic Cycle

The water cycle has no starting point, but we'll begin in the oceans, since that is where most of Earth's water exists. The sun, which drives the water cycle, heats water in the oceans. Some of it evaporates as vapor into the air; a relatively smaller amount of moisture is added as ice and snow sublimate directly from the solid state into vapor. Rising air currents take the vapor up into the ...

Contacts: Jack Monti
Date published: June 2, 2017
Status: Active

Long Island Precipitation and Recharge

Precipitation is water released from clouds in the form of rain, freezing rain, sleet, snow, or hail. It is the primary connection in the water cycle that provides for the delivery of atmospheric water to the Earth. Most precipitation falls as rain. 

Water seeping down from the land surface and reaching the water table adds to the groundwater and is called groundwater recharge....

Contacts: Jack Monti
Date published: June 1, 2017

Long Island Surface Water

Streams either gain water from inflow of groundwater from the underlying aquifer or lose water by outflow to the underlying aquifer. Many streams do both, gaining in some reaches and losing in other reaches. Furthermore, the groundwater flow directions near any given stream can change seasonally as the altitude of the water table changes with respect to the stream-surface altitude or when...

Contacts: Jack Monti
Date published: May 31, 2017
Status: Completed

Workshop - Intermediate-level workshop Bayesian integrated population modeling (IPM) using BUGS and JAGS

Workshop - Intermediate-level workshop Bayesian integrated population modeling (IPM) using BUGS and JAGS

Filter Total Items: 16,167
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Year Published: 2019

Annual survival, site fidelity, and longevity in the eastern coastal population of the Painted Bunting (Passerina ciris) based on a 20-year mark-recapture/resighting study

A long-term study of annual survival, longevity, and site fidelity in the eastern coastal population of the Painted Bunting (Passerina ciris) during the breeding season was conducted from 1999 through 2018 in the outer coastal plain of the southeastern Atlantic coast of the United States. Painted Buntings were uniquely color-banded from 1999...

Sykes, Paul W. Jr; Freeman, Mary; Sykes, Joan J.; Seginak, John T.; M. David Oleyar; Egan, Joshua P.

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Year Published: 2019

The complex spatial distribution of trichloroethene and the probability of NAPL occurrence in the rock matrix of a mudstone aquifer

Methanol extractions for chloroethene analyses are conducted on rock samples from seven closely spaced coreholes in a mudstone aquifer that was subject to releases of the nonaqueous phase liquid (NAPL) form of trichloroethene (TCE) between the 1950's and 1990's. Although TCE concentration in the...

Shapiro, Allen M.; Goode, Daniel J.; Imbrigiotta, Thomas E.; Lorah, Michelle M.; Tiedeman, Claire

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Year Published: 2019

Revisiting the avian Eco-SSL for lead: Recommendations for revision

The avian ecological soil screening level (Eco-SSL) for lead (11 mg/kg) is within soil background concentrations for >90% of the US. Consequently, its utility as a soil screening level is limited. Site-specific ecological risk-based remedial goals for lead are frequently many times greater. Toxicity reference values (TRVs) play a major role in...

Sample, Bradley; Beyer, W. Nelson; Wentsel, Randall

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Year Published: 2019

Future directions to escalate benefits of stepping-stone approach for conservation translocations

Through a reintroduction case study on the critically endangered Vancouver Island marmot (Marmota vancouverensis), we introduced a ‘stepping-stone’ approach which utilizes the transition of released individuals among populations to maximize demographic growth potential (Lloyd et al. 2019). We greatly appreciate and hereby reflect on the...

Lloyd, N.A.; Hostetter, N.J.; Jackson, C.L.; Converse, Sarah J.; Moehrenschlager, A.

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Year Published: 2019

Coelomic disorders of fishes

Dropsy is a commonly applied term for coelomic distention due to ascites, or the effusion and collection of fluid freely throughout the coelomic cavity. Dropsy, or ascites, is generally a sign of another ongoing disease process, oftentimes one that is multisystemic and impacting coelomic organs and tissues. Dropsy may be caused by a variety of...

Densmore, Christine L.

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Year Published: 2019

The Value of Data – The Qatar Geologic Mapping Project

The State of Qatar is in a period of rapid development, modernization, and population growth. One of the most important factors influencing the long-term success and sustainability of future development is a comprehensive understanding of the region’s geologic regime, geotechnical conditions, natural resources, and environmental constraints. To...

Krupansky, Joseph T.; Knight, Michael A.; Orndorff, Randall; Al-Akhras, Khaled M.; Mouradian, Ara G.; Saleh, Ali F.
Krupansky, J.T., Knight, M.A., Orndorff, R.C., Al-Akhras, K.M., Mouradian, A.G., and Sahel, A.F., 2019, The value of data – The Qatar Geologic Mapping Project, in, Meehan, C.L., Kumar, S., Pando, M.A., and Coe, J.T., eds., Data, software, education, and a tribute to Ralph Peck: American Society of Civil Engineers, Geotechnical Special Publication 314 – Geo-Congress 2019, p. 12-23.

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Year Published: 2019

Perfluoroalkyl contaminant exposure in tree swallows nesting at Clarks Marsh, Oscoda, Michigan, USA

A site in north eastern Michigan, Oscoda Township, has some of the highest recorded exposure in birds to perfluorinated substances (PFASs) in the U.S. Some egg and plasma concentrations at that location exceeded the lowest reproductive effect threshold established for two avian laboratory species. The objectives of this study were to determine...

Custer, Christine M.; Custer, Thomas W.; Delaney, Robert; Dummer, Paul; Schultz, Sandra L.; Karouna-Renier, Natalie K.

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Year Published: 2019

Seasonal, tidal, and geomorphic controls on sediment export to Amazon River tidal floodplains

Mainstem–floodplain material exchange in the tidal freshwater reach of ma jor rivers may lead to significant sequestration of riverine sediment, but this zone remains understudied compared to adjacent fluvial and marine environ ments. This knowledge gap prompts investigation of floodplain-incising tidalchannels found along the banks of tidal...

Nowacki, Daniel J. ; Ogston, Andrea S.; Nittrouer, Charles A.; Fricke, Aaron; Asp, Nils; Souza Filho, Pedro Walfir M.
Nowacki, D.J., Ogston, A.S., Nittrouer, C.A., Fricke, A.T., Asp, N.E., 2019, Seasonal, tidal, and geomorphic controls on sediment export to Amazon River tidal floodplains: Journal of Geophysical Research: Earth Surface, v. 44, no. 9, 1846-1859 p doi:10.1002/esp.4616.

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Year Published: 2019

Detecting the undetectable: Characterization, optimization, and validation of an eDNA detection assay for the federally endangered dwarf wedgemussel, Alasmidonta heterodon (Bivalvia: Unionoida)

Environmental (e)DNA assays are valuable tools for monitoring presence and distribution of cryptic species. Like many freshwater mussels, the dwarf wedgemussel, Alasmidonta heterodon numbers have dwindled and its range has diminished. As of its listing in 1993, only 10 to 20 locations were known to persist of the 70 Atlantic slope locations known...

Schill, W. Bane; Galbraith, Heather S.

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Year Published: 2019

Pathways to strategic communication for biodiversity conservation: Response to “Hearing ourselves (and acting in consequence): A commentary on Bekessy et al. from a bird-handling environmental education perspective”

Central to discussions about the merits of ecosystem services as a communication strategy is the degree to which it represents a strategic and effective approach to advance biodiversity conservation. There is increasing recognition that many conservation communication efforts can be more strategic (e.g. Kusmanoff et al. 2016).

Kusmanoff, Alex; Runge, Michael C.; Keith, David A.; Wintle, Brendan A.; Bekessy, Sarah A.

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Year Published: 2019

Environmental and geomorphological changes on the eastern North American Continental Shelf across the Paleocene-Eocene Boundary

Foraminiferal evidence from two sites in southern Maryland, eastern United States, reveals a series of rapid ecological changes on the continental shelf during the onset of the Paleocene-Eocene Thermal Maximum (PETM). Benthic and planktic foraminifer assemblages from the South Dover Bridge (SDB) and Mattawoman Creek-Billingsley Road (MCBR) cores...

Robinson, Marci M.; Spivey, Whittney

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Year Published: 2019

Anatomical physiology of fishes

This chapter highlights the major consistencies and differences that are evident in the anatomy and physiology of those fish most likely to be encountered by the veterinarian or biologist working in the realm of aquatic animal health. It describes teleost fish, members of the infraclass Teleostei that includes bony fish with protrusible upper jaws...

Densmore, Christine L.

Filter Total Items: 1,772
Dive Safety Officer (DSO) Jake Emmert from Moody Gardens Aquarium enters a flooded coastal cave beneath the tropical forest
March 22, 2018

Cave diving scientists

Dive Safety Officer (DSO) Jake Emmert from Moody Gardens Aquarium enters a flooded coastal cave beneath the tropical forest of the Yucatan Peninsula through a small open-water pool, locally known as a cenote.  Cave diving scientists John Pohlman (USGS) and David Brankovits (USGS/WHOI) will use these entrances over the coming days to access a vast network of passages where

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Kanakee River at Davis, IN - ADCP measurement
March 21, 2018

Kanakee River at Davis, IN - ADCP measurement

Kanakee River at Davis, IN - Trae Bruce making an ADCP measurement

Kanakee River at Davis, IN - Wire Weight Gage Reading
March 21, 2018

Kanakee River at Davis, IN - Wire Weight Gage Reading

Kanakee River at Davis, IN - Trae Bruce making a Wire Weight Gage (WWG) reading.

divers deploy acoustic devices in centoes in the Yucatan Peninsula, Mexico
March 17, 2018

USGS in the Yucatan Peninsula, Mexico

John Pohlman (USGS), David Brankovits (USGS/WHOI) and Jake Emmert (MG) deploy acoustic devices in open water sinkhole (or cenote) prior to a 6-month long installation in the Yucatan Peninsula, Mexico cave

drone content collage
March 8, 2018

Drone collage

Top left- Rob Thieler, Sandy Brosnahan and Alex Nichols deploying ground control targets for a UAS study on Coast Guard National Seashore in Eastham, MA.  

Top right- Seth Ackerman (pilot) and Alex Nichols (data recorder) conducting a mapping survey at Parker River National Wildlife Refuge, Newbury Ma.  Photogrammetric techniques are used to stich together the

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Waves break between houses in Sandwich, MA
March 2, 2018

March 2018 Nor'Easter, Sandwich, MA

Waves break between houses on White Cap Path in Sandwich, MA near high tide on Friday, March 2, 2018

floodwaters more than two feet deep on Water Street, Sandwich, MA, March 2018
March 2, 2018

Floodwaters in Sandwich, MA

 photo taken at noon on Friday, March 2, 2018, shows floodwaters more than two feet deep on Water Street, Sandwich, MA, approaching the beach cam house (visible above the mailbox) and Town Neck Beach parking lot.

BeachCam's perspective on the storm! This is the last image taken before the camera stopped working on Friday, March 2 at 11:23
March 2, 2018

BeachCam's perspective on the March 2018 Nor'Easter

BeachCam's perspective on the storm! This is the last image taken before the camera stopped working on Friday, March 2 at 11:23 a.m.

 

USGS Deploys Storm-Tide Sensors
March 1, 2018

USGS Deploys Storm-Tide Sensors

USGS Hydrologic Technician deploys storm-tide sensor in Cohasset, MA.