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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July Photo Contest

July Photo Contest

Check out the winning photographs in the July 2021 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: 16,120
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Year Published: 2016

Catalog of type specimens of recent mammals: Orders Carnivora, Perissodactyla, Artiodactyla, and Cetacea in the National Museum of Natural History, Smithsonian Institution

The type collection of Recent mammals in the Division of Mammals, National Museum of Natural History, Smithsonian Institution, contains 612 specimens bearing names of 604 species-group taxa of Carnivora, Perissodactyla, Artiodactyla, and Cetacea as of May 2016. This catalog presents an annotated list of these holdings comprising 582 holotypes; 16...

Fisher, Robert D.; Ludwig, Craig A.

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Year Published: 2016

A new specimen of Agorophius pygmaeus (Agorophiidae, Odontoceti, Cetacea) from the Early Oligocene Ashley Formation of South Carolina, USA

The holotype partial skull of Agorophius pygmaeus (the monotypic form for both the genus Agorophius and the Family Agorophiidae) has been missing for approximately 140 years. Since the discovery of Agorophius pygmaeus, many additional taxa and specimens have been placed in the Family Agorophiidae, only to be reclassified...

Godfrey, Stephen J.; Uhen, Mark D.; Osborne, Jason E.; Edwards, Lucy E.

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Year Published: 2016

United States copper metal and scrap use and trade patterns, 1995‒2014

In 1995, China accounted for 10 percent of world copper consumption. By 2014, China accounted for about 49 percent of world copper consumption. This change has affected global copper and copper scrap prices, the sources of copper supply, and U.S. trade of copper-containing materials. This report considers changes to the copper and copper scrap...

Goonan, Thomas G.
Goonan, T.G., 2016, United States copper metal and scrap use and trade patterns, 1995–2014: U.S. Geological Survey Scientific Investigations Report 2016–5075, 10 p., http://dx.doi.org/10.3133/sir20165075.

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Year Published: 2016

Estimating species – area relationships by modeling abundance and frequency subject to incomplete sampling

Models and data used to describe species–area relationships confound sampling with ecological process as they fail to acknowledge that estimates of species richness arise due to sampling. This compromises our ability to make ecological inferences from and about species–area relationships. We develop and illustrate hierarchical...

Yamaura, Yuichi; Connor, Edward F.; Royle, Andy; Itoh, Katsuo; Sato, Kiyoshi; Taki, Hisatomo; Mishima, Yoshio

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Year Published: 2016

Movement patterns of Brook Trout in a restored coastal stream system in southern Massachusetts

Coastal Brook Trout (Salvelinus fontinalis) populations are found from northern Canada to New England. The extent of anadromy generally decreases with latitude, but the ecology and movements of more southern populations are poorly understood. We conducted a 33-month acoustic telemetry study of Brook Trout in Red Brook, MA, and adjacent Buttermilk...

Snook, Erin L.; Letcher, Benjamin H.; Dubreuil, Todd L.; Zydlewski, Joseph D.; O'Donnell, Matthew J.; Whiteley, Andrew R.; Hurley, Stephen T.; Danylchuk, Andy J.

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Year Published: 2016

And the first one now will later be last: Time-reversal in cormack-jolly-seber models

The models of Cormack, Jolly and Seber (CJS) are remarkable in providing a rich set of inferences about population survival, recruitment, abundance and even sampling probabilities from a seemingly limited data source: a matrix of 1's and 0's reflecting animal captures and recaptures at multiple sampling occasions. Survival and sampling...

Nichols, James D.
Nichols, J. D., 2016, And the first one now will later be last: Time-reversal in cormack-jolly-seber models: Statistical Science, v. 31, no. 2, p. 175-190.

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Year Published: 2016

Pockmarks in Passamaquoddy Bay, New Brunswick, Canada

Pockmarks are seafloor depressions associated with fluid escape (Judd & Hovland 2007). They proliferate in the muddy seafloors of coastal Gulf of Maine and Bay of Fundy, where they are associated with shallow natural gas likely of biogenic origin (Ussler et al. 2003; Rogers et al. 2006; Wildish et al. 2008). In North America, shallow-water...

Brothers, Laura L.; Legere, Christine; Hughes Clark, J.E.; Kelley, J.T.; Barnhardt, Walter; Andrews, Brian; Belknap, D.F.

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Year Published: 2016

Geologic evolution of the lower Connecticut River valley: Influence of bedrock geology, glacial deposits, and sea level

This fieldtrip illustrates the character of the lower Connecticut River bedrock valley, in particular its depth, and the lithology and structure of bedrock units it crosses. It examines the character and distribution of the glaciodeltaic terraces that partially fill the valley and discusses the depth of postglacial incision into them.

Stone, Janet Radway; Lewis, Ralph S.
Geologic Evolution of the Lower Connecticut River Valley: Influence of Bedrock Geology, Glacial Deposits, and Sea Level Geological Society of Connecticut

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Year Published: 2016

Estimation of daily mean streamflow for ungaged stream locations in the Delaware River Basin, water years 1960–2010

The ability to characterize baseline streamflow conditions, compare them with current conditions, and assess effects of human activities on streamflow is fundamental to water-management programs addressing water allocation, human-health issues, recreation needs, and establishment of ecological flow criteria. The U.S. Geological Survey, through the...

Stuckey, Marla H.
Stuckey, M.H., 2016, Estimation of daily mean streamflow for ungaged stream locations in the Delaware River Basin, water years 1960–2010: U.S. Geological Survey Scientific Investigations Report 2015–5157, 42 p., http://dx.doi.org/10.3133/sir20155157.

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Year Published: 2016

User’s guide for the Delaware River Basin Streamflow Estimator Tool (DRB-SET)

IntroductionThe Delaware River Basin Streamflow Estimator Tool (DRB-SET) is a tool for the simulation of streamflow at a daily time step for an ungaged stream location in the Delaware River Basin. DRB-SET was developed by the U.S. Geological Survey (USGS) and funded through WaterSMART as part of the National Water Census, a USGS research program...

Stuckey, Marla H.; Ulrich, James E.
Stuckey, M.H., and Ulrich, J.E., 2016, User’s Guide for the Delaware River Basin Streamflow Estimator Tool (DRB-SET): U.S. Geological Survey Open-File Report 2015–1192, 6 p., http://dx.doi.org/10.3133/ofr20151192.

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Year Published: 2016

Climate change

Climate change (including climate variability) refers to regional or global changes in mean climate state or in patterns of climate variability over decades to millions of years often identified using statistical methods and sometimes referred to as changes in long-term weather conditions (IPCC, 2012). Climate is influenced by changes in continent...

Cronin, Thomas M.
Cronin, T. M., 2015, Climate Change. In, M. Kennish (ed.), Encyclopedia of Estuaries, doi:10.1007/978-94-017-8801-4, Springer Science+Business Media Dordrecht.

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Year Published: 2016

Flood-Inundation Maps for Sugar Creek at Crawfordsville, Indiana

Digital flood-inundation maps for a 6.5-mile reach of Sugar Creek at Crawfordsville, Indiana, were created by the U.S. Geological Survey (USGS) in cooperation with the Indiana Office of Community and Rural Affairs. The flood-inundation maps, which can be accessed through the USGS Flood Inundation Mapping Science Web site at http://water.usgs.gov/...

Martin, Zachary W.
Martin, Z.W., 2016, Flood-inundation maps for Sugar Creek at Crawfordsville, Indiana: U.S. Geological Survey Scientific Investigations Report 2016–5043, 11 p., http://dx.doi.org/10.3133/sir20165043.

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Image: Science Crew Aboard CCGS Louis S. St-Laurent
September 9, 2009

Science Crew Aboard CCGS Louis S. St-Laurent

Science crew ran the multichannel seismic equipment, sonobuoy refraction equipment, navigation, marine mammal observations program, and incidental science studies.  Dr. Deborah Hutchinson (USGS liaison aboard the Canadian icebreaker) is 7th from the right.  Dr. David Mosher, Chief Scientist aboard Louis is 10th from the right.

[This set of

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black speckles on green and pink fish in clear stream by rocks and sand
September 4, 2009

Raindbow trout in New York stream

Raindbow trout in New York stream

hand using tweezers next to several containers at edge of stream
August 25, 2009

Collecting periphyton samples from the Upper Esopus Creek

Collecting periphyton samples from the Upper Esopus Creek

Photograph of United States and Canada flags
August 12, 2009

Flags flying high

U.S. and Canadian two icebreaker collaboration in the Arctic Ocean. Flags flying from CCGS Louis S. St-Laurent.

Blue Ridge Sculpin
June 27, 2009

Blue Ridge Sculpin

Blue Ridge Sculpin from Wikimedia Commons

hand in streamwater holding slimy matter
June 16, 2009

Didymosphenia in hand along the Upper Esopus Creek 2009

Didymosphenia in hand along the Upper Esopus Creek 2009

Inlet into Pleasant bay, looking north to Nauset Beach, Cape Cod National Seashore, Chatham, MA
May 21, 2009

Pleasant Bay, Nauset Beach, Cape Cod National Seashore, Chatham, MA

Inlet into Pleasant bay, looking north to Nauset Beach, Cape Cod National Seashore, Chatham, MA