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.

Learn More

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.

See Photos

Regions L2 Landing Page Tabs

Filter Total Items: 16,165
Publication Thumbnail
Year Published: 2016

Tracking domestic ducks: A novel approach for documenting poultry market chains in the context of avian influenza transmission

Agro-ecological conditions associated with the spread and persistence of highly pathogenic avian influenza (HPAI) are not well understood, but the trade of live poultry is suspected to be a major pathway. Although market chains of live bird trade have been studied through indirect means including interviews and questionnaires, direct methods have...

Choi, Chang-Yong; Takekawa, John Y.; Xiong, Yue; Wikelski, Martin; Heine, George; Prosser, Diann J.; Newman, Scott H.; Edwards, John; Guo, Fusheng; Xiao, Xiangming

Publication Thumbnail
Year Published: 2016

Variability of bed drag on cohesive beds under wave action

Drag force at the bed acting on water flow is a major control on water circulation and sediment transport. Bed drag has been thoroughly studied in sandy waters, but less so in muddy coastal waters. The variation of bed drag on a muddy shelf is investigated here using field observations of currents, waves, and sediment concentration collected...

Safak, Ilgar
Safak I. Variability of Bed Drag on Cohesive Beds under Wave Action. Water. 2016; 8(4):131.

Publication Thumbnail
Year Published: 2016

Lake transparency: a window into decadal variations in dissolved organic carbon concentrations in Lakes of Acadia National Park, Maine

A forty year time series of Secchi depth observations from approximately 25 lakes in Acadia National Park, Maine, USA, evidences large variations in transparency between lakes but relatively little seasonal cycle within lakes. However, there are coherent patterns over the time series, suggesting large scale processes are responsible. It has been...

Roesler, Collin S.; Culbertson, Charles W.

Publication Thumbnail
Year Published: 2016

Fifty-seventh supplement to the American Ornithologists' Union Check-list of North American Birds

This is the 16th supplement since publication of the 7th edition of the Check-list of North American Birds (American Ornithologists' Union [AOU] 1998). It summarizes decisions made between April 15, 2015, and April 15, 2016, by the AOU's Committee on Classification and Nomenclature—North and Middle America. The Committee has continued to...

Chesser, R. Terry; Burns, Kevin J; Cicero, Carla; Dunn, Jon L.; Kratter, Andrew W.; Lovette, Irby J.; Rasmussen, Pamela C.; Remsen, J.V.; Rising, James D.; Stotz, Douglas F.; Winker, Kevin
Chesser, R. T., Burns, K. J., Cicero, C., Dunn, J. L., Kratter, A. W., Lovette, I. J., Rasmussen, P. C., Remsen, J. V. Jr., Rising, J. D., Stotz, D. F., and Winker, K., 2016, Fifty-seventh supplement to the American Ornithologists' Union: Check-list of North American Birds: Auk, v. 133, no. 3, p. 544-560.

Publication Thumbnail
Year Published: 2016

Spatial database for a global assessment of undiscovered copper resources: Chapter Z in Global mineral resource assessment

As part of the first-ever U.S. Geological Survey global assessment of undiscovered copper resources, data common to several regional spatial databases published by the U.S. Geological Survey, including one report from Finland and one from Greenland, were standardized, updated, and compiled into a global copper resource database. This integrated...

Zientek, Michael L.; Hammarstrom, Jane M.; Johnson, Kathleen M.; Dicken, Connie L.; Dunlap, Pamela; Parks, Heather L.; Hammarstrom, Jane M.; Zientek, Michael L.
Dicken, C.L., Dunlap, Pamela, Parks, H.L., Hammarstrom, J.M., and Zientek, M.L., 2016, Spatial database for a global assessment of undiscovered copper resources: U.S. Geological Survey Scientific Investigations Report 2010–5090–Z, 29 p., and GIS data, available at http://dx.doi.org/10.3133/sir20105090Z.

Publication Thumbnail
Year Published: 2016

The PRISM4 (mid-Piacenzian) paleoenvironmental reconstruction

The mid-Piacenzian is known as a period of relative warmth when compared to the present day. A comprehensive understanding of conditions during the Piacenzian serves as both a conceptual model and a source for boundary conditions as well as means of verification of global climate model experiments. In this paper we present the PRISM4...

Dowsett, Harry J.; Dolan, Aisling M.; Rowley, David; Moucha, Robert; Forte, Alessandro; Mitrovica, Jerry X.; Pound, Matthew; Salzmann, Ulrich; Robinson, Marci M.; Chandler, Mark; Foley, Kevin M.; Haywood, Alan M.

Publication Thumbnail
Year Published: 2016

Conservation of avian species

Health of humans, animals, plants, and ecosystems are intertwined. Disturbance tips the balance in favor of weedy species, vectors, and disease agents. Biodiversity is important to prevent imbalance in nature. However, more scholarship is needed, and there is still much more to study, understand, and manage than we currently know.

Olsen, Glenn H.; Crosta, Lorenzo; Gartrell, Brett D.; Marsh, Philip M.; Stringfield, Cynthia E.

Publication Thumbnail
Year Published: 2016

Recent trends in the nonfuel minerals industry of Iran

Summary In response to the recent removal of international sanctions on Iran, including the lifting of “secondary” sanctions by the United States on investment into and trade with Iran, the U.S. Geological Survey National Minerals Information Center compiled and analyzed available information on the current state of Iran’s...

Hastorun, Sinan; Renaud, Karine M.; Lederer, Graham W.
Hastorun, Sinan, Renaud, K.M., and Lederer, G.W., 2016, Recent trends in the nonfuel minerals industry of Iran: U.S. Geological Survey Circular 1421, 18 p., http://dx.doi.org/10.3133/cir1421.

Publication Thumbnail
Year Published: 2016

Demography of an apex predator at the edge of its range: impacts of changing sea ice on polar bears in Hudson Bay

Changes in the abundance and distribution of wildlife populations are common consequences of historic and contemporary climate change. Some Arctic marine mammals, such as the polar bear (Ursus maritimus), may be particularly vulnerable to such changes due to the loss of Arctic sea ice. We evaluated the impacts of environmental variation on...

Lunn, Nicholas J.; Servanty, Sabrina; Regehr, Eric V.; Converse, Sarah J.; Richardson, Evan S.; Stirling, Ian
Lunn, N. J., Servanty, S., Regehr, E. V., Converse, S. J., Richardson, E., and Stirling, I., 2016, Demography of an apex predator at the edge of its range – impacts of changing sea ice on polar bears in Hudson Bay: Ecological Applications, v. 26, no. 5, p. 1302-1320.

Publication Thumbnail
Year Published: 2016

Density-dependent home-range size revealed by spatially explicit capture–recapture

The size of animal home ranges often varies inversely with population density among populations of a species. This fact has implications for population monitoring using spatially explicit capture–recapture (SECR) models, in which both the scale of home-range movements σ and population density D usually appear as parameters, and both...

Efford, M.G.; Dawson, Deanna K.; Jhala, Y.V.; Qureshi, Q.

Publication Thumbnail
Year Published: 2016

Hyperspectral surveying for mineral resources in Alaska

Alaska is a major producer of base and precious metals and has a high potential for additional undiscovered mineral resources. However, discovery is hindered by Alaska’s vast size, remoteness, and rugged terrain. New methods are needed to overcome these obstacles in order to fully evaluate Alaska’s geology and mineral resource...

Kokaly, Raymond F.; Graham, Garth E.; Hoefen, Todd M.; Kelley, Karen D.; Johnson, Michaela R.; Hubbard, Bernard E.
Kokaly, R.F., Graham, G.E., Hoefen, T.M., Kelley, K.D., Johnson, M.R., and Hubbard, B.E., Hyperspectral surveying for mineral resources in Alaska: U.S. Geological Survey Fact Sheet 2016-3029, 2 p., http://dx.doi.org/10.3133/fs20163029.

Publication Thumbnail
Year Published: 2016

Preserving reptiles for research

What are voucher specimens and why do we collect them? Voucher specimens are animals and/or their parts that are deposited in a research museum to document the occurrence of a taxon at a specific location in space and time (Pleijel et al., 2008; Reynolds and McDiarmid, 2012). For field biologists, vouchers are the repeatable element of a field...

Dodd, C. Kenneth; Gotte, Steve W.; Jacobs, Jeremy F.; Zug, George R.
Gotte, S.W., Jacobs, J.F., and Zug, G.R., 2016, Preserving reptiles for research, in Dodd, C.K., editor, Reptile Ecology and Conservation, Oxford University Press, p. 73-86.

Filter Total Items: 1,772
Woman standing in creek pouring water in a bottle
June 25, 2010

USGS hydrologist collecting a water quality sample from a NY stream

USGS hydrologist Tia Scott collecting a water quality sample from an eastern New York stream

USGS scientists fluid-logging in Bangladesh
June 8, 2010

USGS scientists fluid-logging in Bangladesh

USGS scientists from the New York and Connecticut Water Science Centers fluid logging in Bangladesh

USGS and Iraqi men under a canopy outdoors gathered around a computer
June 8, 2010

USGS conducting geophysical training in Iraq

USGS scientists from the New York and Connecticut Water Science Centers conduct geophysical training in Iraq

Image of cypress trees during the wet season
May 20, 2010

Cypress Bridge Preserve, May 2010

Scientists took a trip to Cypress Bridge Preserve during the "wet" season to collect sediment cores for further analysis.

Image of the sun shining through the tops of cypress trees
May 20, 2010

Cypress Bridge Preserve, May 2010

Scientists took a trip to Cypress Bridge Preserve during the "wet" season to collect sediment cores for further analysis.

stream monitoring equipment in a small stream surrounded by woods
May 2, 2010

Buck Creek Watershed

Stream Flow and Chemistry Monitoring Stations in Buck Creek Watershed, NY

Three men kneel in the snow while examining a long thin core of sediment, one man pointing and talking, one man taking notes.
April 20, 2010

Examining Arctic lake sediment core

John Pohlman (USGS, left) and colleagues from the University of Alaska Fairbanks examine a sediment core retrieved through winter ice from the bottom of a lake in northern Alaska. Such cores are used to reconstruct methane emissions and climate history over the past 20,000 years.

Flooding at the USGS Streamgage Nashua River at Pepperell, MA
March 17, 2010

Flooded Streamgage

Flooding at the USGS Streamgage Nashua River at Pepperell, MA (01096500) on March 17, 2010 at about 12:15 EDT at a gage height of 14.58 ft and discharge of 9,780 cfs.

creek water rushing over a low-head dam with leafless trees on banks
March 15, 2010

Low-head dam on the Tonawanda Creek at Batavia, 2010

Low-head dam on the Tonawanda Creek at Batavia, 2010

Image: Flooding on the Kennebunk River
February 26, 2010

Flooding on the Kennebunk River

The USGS has been monitoring the Kennebunk River near Kennebunk, Maine since June 2008 and the peak discharge for the period of record occurred February 2010. This photo was taken as the river crested over that February event and demonstrates the challenge faced by the USGS when it comes to monitoring river conditions during floods. When installing and maintaining our

...
Map of the North American - Caribbean tectonic plate boundary
January 20, 2010

Map of the North American - Caribbean tectonic plate boundary

Map of the North American - Caribbean tectonic plate boundary. Colors denote depth below sea level and elevation on land. Bold numbers are the years of moderately large (larger than about M7) historical earthquakes written next to their approximate location. Asterisk - Location of the January 12, 2010 earthquake. Barbed lines- boundary where one plate or block plunges

...