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 28, 2015
Status: Active

The Effectiveness of Total Mercury as a Surrogate for Methylmercury in Aquatic Invertebrates

A. BACKGROUND Aquatic macroinvertebrates, such as dragonfly larvae or crayfish have great potential for Mercury (Hg) monitoring, both as indicator organisms (or "sentinels'), and to provide critical information on Hg in lower food webs to assist in interpreting fish Hg levels. Despite these advantages, macroinvertebrates are not widely used in Hg monitoring because of the current need to...

Date published: August 28, 2015
Status: Active

Floods of 2011 in New York

Background / Problem Hurricane Irene Figure 1 shows the declared counties for Hurricane Irene (FEMA) Five to ten inches of rain from Hurricane Irene produced widespread moderate to major flooding throughout eastern New York August 28-30. Highest rainfall totals occurred in the Catskill Mountains of southeastern New York where over 18-inches of rain was reported at Maplecrest, NY. Record...

Contacts: Travis L Smith
Date published: August 28, 2015
Status: Active

Geohydrology of the Valley-Fill Aquifer in the West Branch Cayuga Inlet and Fish Kill Valleys, Town of Newfield, Tompkins County, New York

PROBLEM The valley-fill aquifers in the West Branch Cayuga Inlet and Fish Kill valleys (designated as aquifer 15, fig.1), within the Town of Newfield, were mapped by Miller (2000) and identified as one of 17 unconsolidated aquifers in Tompkins County that need to be studied in more detail. The valley-fill in the West Branch Cayuga Inlet and Fish Kill valleys contain a heterogeneous mix of...

Date published: August 28, 2015
Status: Active

Geohydrology of the Unconsolidated Aquifer in Enfield Creek Valley, Town of Enfield, Tompkins County, New York

PROBLEM The unconsolidated aquifer in Enfield Creek Valley (fig. 1) was mapped by Miller (2000) and identified as one of 17 unconsolidated aquifers in Tompkins County that needs to be studied in more detail. Well records in Enfield Creek valley indicate that the northern part of Enfield Creek valley contains sand and gravel deposits which may be under unconfined conditions in some areas, con...

Date published: August 28, 2015
Status: Active

Status of benthic macroinvertebrate communities and toxicity of sediments in the Eighteenmile Creek Area of Concern, New York

Background: The USGS propose a collaborative investigation with the NYSDEC to evaluate the current condition of benthic macroinvertebrate communities and toxicity of bed sediments in the Eighteenmile Creek Area of Concern (AOC). Sediment-toxicity data provided by the USGS and benthic-community data provided by the NYSDEC from inside the AOC will be compared to similar data from non-AOC sites...

Contacts: Barry P Baldigo, Scott George, Brian Duffy
Date published: August 28, 2015
Status: Active

Status of benthic macroinvertebrate communities and toxicity of sediments in the Niagara River Area of Concern, New York

Background: The USGS propose a collaborative investigation with the NYSDEC and NOAA to evaluate the current condition of benthic macroinvertebrate communities and toxicity of bed sediments in the Niagara River Area of Concern (AOC). Using a probabilistic study design, sediment-toxicity data compiled by the USGS, invertebrate community data collected by NYSDEC, and sediment-chemistry data...

Contacts: Barry P Baldigo, Scott George, Brian Duffy
Date published: August 27, 2015
Status: Active

Effects of Watershed and In-stream Liming on Accelerated Recovery of Macroinvertebrate Assemblages in Tributaries to Honnedaga Lake

Background Acidification of lotic and lentic environments has been found to adversely affect the integrity of resident biological assemblages. These effects have been particularly severe in poorly buffered regions like the Western Adirondacks. Although the Clean Air Act and its amendments have greatly reduced levels of atmospheric deposition, many streams in this region are still chronical...

Date published: August 27, 2015
Status: Active

Estimated Non-reservoir Streamflows of Esopus Creek at Coldbrook and Mount Marion, New York

Problem Statement More than nine million people rely on the New York City Water-Supply System for their daily-drinking water needs. Approximately 40 percent of this water comes from the Schoharie and Ashokan Reservoirs (fig. 1). This water is transported from the Catskill Area to New York City through Esopus Creek and a series of man-made tunnels and aqueducts built starting in the early 19...

Contacts: Douglas A Burns
Date published: August 27, 2015
Status: Active

Long-term Effects of the Clean Air Act on Water Toxicity and Brook Trout Survival in Acidified Streams of the Southwestern Adirondacks, 1984-2017

Background Forested watersheds in the southwestern Adirondack Mountains of New York received some of the most acidic deposition in North America from the 1970s through much of the 1990s (NADP 2005). Thus it is not surprising that associated effects on surface-water quality and ecosystems in lakes and streams of the southwestern Adirondack Mountains of New York were investigated to various...

Contacts: Barry P Baldigo
Date published: August 27, 2015
Status: Active

Sediment-bound Contaminant Resiliency and Response (SCoRR) Strategy

The U.S. Geological Survey's Strategy to Evaluate Persistent Contaminant Hazards Resulting from Sea Level Rise and Storm-derived Disturbances SCORR Mapper SCoRR: Sediment-bound Contaminant Resiliency and Response Strategy Project Page Natural and anthropogenic contaminants, pathogens, and viruses are found in soils and sediments throughout the United States. Enhanced dispersion and...

Date published: August 27, 2015
Status: Active

The National Network of Reference Watersheds

The National Network of Reference Watersheds is a collaborative and multipurpose network of minimally disturbed watersheds and monitoring sites. The purpose of this website is to allow users to search the NNRW database of reference watersheds, to identify watersheds of interest, and download watershed information and water quality data. The current scope of the network is limited to freshwat...

Date published: August 27, 2015
Status: Active

Effects of acid-base chemistry on biology of streams in the Great Smoky Mountains National Park

Background Watersheds of the Great Smoky Mountains National Park (GRSM) receive high levels of acid deposition resulting from atmospheric emissions of nitrogen and sulfur oxides. Acidic deposition has been shown to reduce acid neutralizing capacity (ANC) and calcium concentrations and increase acidity and aluminum concentrations in soils and surface waters and affect forest health as well as...

Contacts: Barry P Baldigo
Filter Total Items: 16,165
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Year Published: 2018

Deformation of the Pacific/North America plate boundary at Queen Charlotte Fault: The possible role of rheology

The Pacific/North America (PA/NA) plate boundary between Vancouver Island and Alaska is similar to the PA/NA boundary in California in its kinematic history and the rate and azimuth of current relative motion, yet their deformation styles are distinct. The California plate boundary shows a broad zone of parallel strike slip and thrust faults and...

ten Brink, Uri S.; Miller, Nathaniel C.; Andrews, Brian D.; Brothers, Daniel; Haeussler, Peter J.
ten Brink, U. S., Miller, N. C., Andrews, B. D.,Brothers, D. S., & Haeussler, P. J. (2018). Deformation of the Pacific/North America plate boundary at Queen Charlotte Fault: The possible role of rheology. Journal of Geophysical Research: Solid Earth, 123. https://doi.org/10.1002/2017JB014770

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Year Published: 2018

Estimation of unregulated monthly, annual, and peak streamflows in Forest City Stream and lake levels in East Grand Lake, United States-Canada border between Maine and New Brunswick

The U.S. Geological Survey, in cooperation with the International Joint Commission, compiled historical data on regulated streamflows and lake levels and estimated unregulated streamflows and lake levels on Forest City Stream at Forest City, Maine, and East Grand Lake on the United States-Canada border between Maine and New Brunswick to study the...

Lombard, Pamela J.
Lombard, P.J., 2018, Estimation of unregulated monthly, annual, and peak streamflows in Forest City Stream and lake levels in East Grand Lake, United States-Canada border between Maine and New Brunswick: U.S. Geological Survey Scientific Investigations Report 2018–5044, 8 p., https://doi.org/10.3133/sir20185044.

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Year Published: 2018

Using regional scale flow–ecology modeling to identify catchments where fish assemblages are most vulnerable to changes in water availability

Streamflow is essential for maintaining healthy aquatic ecosystems and for supporting human water supply needs. Changes in climate, land use and water use practices may alter water availability. Understanding the potential effect of these changes on aquatic ecosystems is critical for long-term water management to maintain a balance between water...

Ernie F. Hain;; Kennen, Jonathan; Peter V. Caldwell; Stacy A.C. Nelson; Ge Sun; Steven G. McNulty

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Year Published: 2018

Rediscovery of the type series of the Acadian Masked Shrew, Sorex acadicus Gilpin, 1865 (Mammalia: Soricidae), with the designation of a neotype and a reevaluation of its taxonomic status

The name Sorex acadicus Gilpin, 1865 is currently recognized as the valid name for the Nova Scotian subspecies of the masked shrew, S. cinereus Kerr, 1792 (Mammalia: Soricidae), but a holotype for the taxon was never designated, and the location of the type series has been a mystery. The authority for this species,...

Woodman, Neal
Woodman, N., 2018, Rediscovery of the type series of the Acadian Masked Shrew, Sorex acadicus Gilpin, 1865 (Mammalia: Soricidae), with the designation of a neotype and a reevaluation of its taxonomic status: Proceedings of the Biological Society of Washington, v. 131, no. 1, p. 111-131. https://doi.org/10.2988/17-00022

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Year Published: 2018

Direct measurements of mean Reynolds stress and ripple roughness in the presence of energetic forcing by surface waves

Direct covariance observations of the mean flow Reynolds stress and sonar images of the seafloor collected on a wave‐exposed inner continental shelf demonstrate that the drag exerted by the seabed on the overlying flow is consistent with boundary layer models for wave‐current interaction, provided that the orientation and anisotropy of the bed...

Scully, Malcolm; Trowbridge, John; Sherwood, Christopher R.; Jones, Katie R.; Traykovski, Peter A.
Scully, M., Trowbridge, J., Sherwood, C., Samuelson, K., and Traykovski, P, 2018, Direct Measurements of Mean Reynolds Stress and Ripple Roughness in the Presence of Energetic Forcing by Surface Waves: JGR-Oceans doi:10.1002/2017JC013252.

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Year Published: 2018

Helping decision makers frame, analyze, and implement decisions

All decisions have the same recognizable elements. Context, objectives, alternatives, consequences, and deliberation. Decision makers and analysts familiar with these elements can quickly see the underlying structure of a decision.There are only a small number of classes of decisions. These classes differ in the cognitive and scientific challenge...

Runge, Michael C.; McDonald-Madden, Eve
Runge, M. C. and McDonald-Madden, E., 2018, Helping decision makers frame, analyze, and implement decisions: Decision Point Online, v. 104, p. 12-15. http://decision-point.com.au/article/navigating-the-field-of-decision-analysis/

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Year Published: 2018

Bedrock geologic map of the Lisbon quadrangle, and parts of the Sugar Hill and East Haverhill quadrangles, Grafton County, New Hampshire

The bedrock geologic map of the Lisbon quadrangle, and parts of the Sugar Hill and East Haverhill quadrangles, Grafton County, New Hampshire, covers an area of approximately 73 square miles (189 square kilometers) in west-central New Hampshire. This map was created as part of a larger effort to produce a new bedrock geologic map of Vermont through...

Rankin, Douglas W.
Rankin, D.W., 2018, Bedrock geologic map of the Lisbon quadrangle, and parts of the Sugar Hill and East Haverhill quadrangles, Grafton County, New Hampshire: U.S. Geological Survey Open-File Report 2018–1016, 1 sheet, scale 1:24,000, https://doi.org/10.3133/ofr20181016.

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Year Published: 2018

Bedrock geologic map of the Miles Pond and Concord quadrangles, Essex and Caledonia Counties, Vermont, and Grafton County, New Hampshire

The bedrock geologic map of the Miles Pond and Concord quadrangles covers an area of approximately 107 square miles (276 square kilometers) in east-central Vermont and adjacent New Hampshire, north of and along the Connecticut River. This map was created as part of a larger effort to produce a new bedrock geologic map of Vermont through the...

Rankin, Douglas W.
Rankin, D.W., 2018, Bedrock geologic map of the Miles Pond and Concord quadrangles, Essex and Caledonia Counties, Vermont, and Grafton County, New Hampshire: U.S. Geological Survey Open-File Report 2018–1025, 1 sheet, scale 1:24,000, https://doi.org/10.3133/ofr20181025.

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Year Published: 2018

Brown trout in the Lees Ferry reach of the Colorado River—Evaluation of causal hypotheses and potential interventions

Over the period 2014–2016, the number of nonnative brown trout (Salmo trutta) captured during routine monitoring in the Lees Ferry reach of the Colorado River, downstream of Glen Canyon Dam, began increasing. Management agencies and stakeholders have questioned whether the increase in brown trout in the Lees Ferry reach represents a threat to the...

Runge, Michael C.; Yackulic, Charles B.; Bair, Lucas S.; Kennedy, Theodore A.; Valdez, Richard A.; Ellsworth, Craig; Kershner, Jeffrey L.; Rogers, R. Scott; Trammell, Melissa A.; Young, Kirk L.
Runge, M.C., Yackulic, C.B., Bair, L.S., Kennedy, T.A., Valdez, R.A., Ellsworth, C., Kershner J.L., Rogers, R.S., Trammell, M.A., and Young, K.L., 2018, Brown trout in the Lees Ferry reach of the Colorado River—Evaluation of causal hypotheses and potential interventions: U.S. Geological Survey Open-File Report 2018–1069, 83 p., https://doi.org/10.3133/ofr20181069.

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Year Published: 2018

Decision support frameworks and tools for conservation

The practice of conservation occurs within complex socioecological systems fraught with challenges that require transparent, defensible, and often socially engaged project planning and management. Planning and decision support frameworks are designed to help conservation practitioners increase planning rigor, project accountability, stakeholder...

Schwartz, Mark W.; Cook, Carly N.; Pressey, Robert L.; Pullin, Andrew S.; Runge, Michael C.; Salafsky, Nick; Sutherland, William J.; Williamson, Matthew A.
Schwartz, M. W., Cook, C. N., Pressey, R. L., Pullin, A. S., Runge, M. C., Salafsky, N, Sutherland, W. J., and Williamson, M. A., 2018, Decision support frameworks and tools for conservation: Conservation Letters, v. 11, no. 2, article no. e12385. https://doi.org/10.1111/conl.12385

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Year Published: 2018

Quality-control design for surface-water sampling in the National Water-Quality Network

The data-quality objectives for samples collected at surface-water sites in the National Water-Quality Network include estimating the extent to which contamination, matrix effects, and measurement variability affect interpretation of environmental conditions. Quality-control samples provide insight into how well the samples collected at surface-...

Riskin, Melissa L.; Reutter, David C.; Martin, Jeffrey D.; Mueller, David K.
Riskin, M.L., Reutter, D.C., Martin, J.D., and Mueller, D.K., 2018, Quality-control design for surface-water sampling in the National Water-Quality Network: U.S. Geological Survey Open-File Report 2018–1018, 15 p., https://doi.org/10.3133/ofr20181018.

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Year Published: 2018

The future of fish passage science, engineering, and practice

Much effort has been devoted to developing, constructing and refining fish passage facilities to enable target species to pass barriers on fluvial systems, and yet, fishway science, engineering and practice remain imperfect. In this review, 17 experts from different fish passage research fields (i.e., biology, ecology, physiology, ecohydraulics,...

Silva, Ana T.; Lucas, Martyn C.; Castro-Santos, Theodore R.; Katopodis, Christos; Baumgartner, Lee J.; Thiem, Jason D.; Aarestrup, Kim; Pompeu, Paulo S.; O'Brien, Gordon C.; Braun, Douglas C.; Burnett, Nicholas J.; Zhu, David Z.; Fjeldstad, Hans-Petter ; Forseth, Torbjorn; Rajarathnam, Nallamuthu; Williams, John G.; Cooke, Steven J.
Silva,A.T., Lucas,M.C., CastroÇÉSantos,T., Katopodis,C., Baumgartner,L.J., Thiem,J.D., Aarestrup,K., Pompeu,P.S., O'Brien,G.C., Braun,D.C., Burnett,N.J., Zhu,D.Z., Fjeldstad,H., Forseth,T., Rajaratnam,N., Williams,J.G., and Cooke,S.J. 2018. The future of fish passage science, engineering, and practice. Fish Fish 19: 340-362.

Filter Total Items: 1,772
bridge over Mohawk River at Lock 8 dam
March 10, 2017

Mohawk River at Lock 8 near Schenectady (01354330)

Mohawk River at Lock 8 near Schenectady (01354330) Live Ice Jam Web Camera

Scientist posing next to a snow scale
February 28, 2017

Scientist posing next to a snow scale

Physical Scientist Serena Matt posing next to a snow scale during the Snow Depth and Snow Water Equivalent (SWE) measurement. Sleepers River Research Watershed, Danville, Vermont.

Snow depth and water equivalent measurements have been made at Sleepers River Watershed starting in 1960. Initial snowpack measurements were made by the Agricultural Research Service

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