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: 1,126
Date published: October 1, 2015
Status: Active

Hydrologic Climate Change Indicators

Background Streams and rivers are an important environmental resource and provide water for many human needs. Streamflow is a measure of the volume of water carried by rivers and streams. Changes in streamflow can directly influence the supply of water available for human consumption, irrigation, generating electricity, and other needs. In addition, many plants and animals depend on...

Date published: September 30, 2015
Status: Completed

United States Critical Mineral Resources in a Global Context

USGS updated a report on U.S. mineral resources for selected critical mineral commodites. This report updates USGS Professional Paper 820 (1973), which was published when many of the commodities that are covered in this new volume were only of minor importance. Today, advanced technologies have increased the demand for and production of mineral commodities for nearly all elements in the...

Contacts: Klaus J Schulz, Dwight Bradley
Date published: September 30, 2015
Status: Active

James River Research Corridor: Mountains to Sea Innovative Water Quality Network

This successful partnership brings together Randolph-Macon College (RMC), Washington and Lee University (W&L), and Virginia Commonwealth University (VCU), in partnership with the US Geological Survey (USGS) to foster growth in Science, Technology, Engineering, and Math (STEM) through summer student internship experience, awareness of USGS science in the class room, and increased...

Contacts: Jennifer L Rapp, Douglas L Moyer, Dr. Charles Gowan , Dr. Robert Humston, Dr. Paul Bukaveckas , Dr. Greg Garman
Date published: September 30, 2015
Status: Active

Geohydrology and Water Quality of the Northern and Central Parts of the Tug Hill Glacial Aquifer, Jefferson and Oswego Counties, North Central New York

Problem - The entire Tug Hill glacial aquifer is a 47-mile-long, crescent-shaped mixture of glacial deposits of predominantly sand and gravel on the western side of the Tug Hill Plateau in Jefferson, Oswego, and Oneida Counties in north central New York. The Tug Hill aquifer can be divided into three parts (northern, central, and southern) based on geohydrological setting, depositional history...

Contacts: Benjamin N Fisher, William M Kappel, Todd S Miller
Date published: September 29, 2015
Status: Active

Coastal Storm Response Surge, Wave, and Tide Hydrodynamics Network (SWaTH)

Following Hurricane Sandy, the USGS began construction of an overland Surge, Wave, and Tide Hydrodynamics (SWaTH) Network along the Northeastern Atlantic Coast from North Carolina to Maine. This network, developed collaboratively with numerous partners, features the integration of long-term tide gage networks, with real-time rapid-deployment gages (RDG) and mobile storm-tide sensors (STS). An...

Date published: September 28, 2015
Status: Completed

Hydrogeology of Two Areas of the Tug Hill Glacial-drift Aquifer, Oswego County, New York

Problem - Several supply wells in Oswego County were evaluated by the USGS in 1999 by using stable oxygen and hydrogen isotopes and chlorofluorocarbon (CFC) age dating techniques. For two municipal well sites (the Villages of Sandy Creek and Lacona, and the Village of Pulaski) that tap a shallow, unconfined aquifer (typically 20-50 ft thick) there were significant discrepancies between ground-...

Contacts: John Williams, Todd S Miller
Date published: September 28, 2015
Status: Completed

Hydrogeology of the Virgil Creek Valley in the Town of Dryden, Tompkins County, New York

Problem The Village of Dryden, rural homeowners, farms, and businesses in the Virgil Creek Valley tap several confined sand and gravel aquifers in the Virgil Creek valley in the town of Dryden . The valley contains a large moraine with complex stratigraphy consisting of continuous and discontinuous layers of till, lake deposits, and glaciofluvial sand and gravel. Sand and gravel units form the...

Contacts: John Williams, Todd S Miller
Date published: September 24, 2015
Status: Active

Development of a Ground-Water Flow Model for the Manhasset Neck Peninsula, Nassau County, New York

Problem The ground-water flow system underlying the Manhasset Neck Peninsula, which provides potable water to the local population, consists of a complex assemblage of Pleistocene- and Cretaceous-age sediments that form five aquifers and at least two confining units. Recent hydrogeologic mapping in Manhasset Neck indicates significant glacial erosion of the Magothy aquifer, Raritan Clay, and...

Date published: September 23, 2015
Status: Active

Effect of Flooding from Tropical Storm Irene on Fish Assemblages in the Upper Esopus Creek Basin

Background The Upper Esopus Creek, a popular trout-fishing and recreational stream in the heart of the Catskill Mountains, received historic flooding from Tropical Storm Irene on August 28, 2011. Streamflows approached or surpassed the 1% annual exceedance probability (>100 year) flood levels at several USGS streamgages in this basin. Short-term flood impacts on biological assemblages have...

Date published: September 23, 2015
Status: Active

Detailed Aquifer Mapping in the Susquehanna River Valley in South-Central Broome County –Towns of Conklin and Kirkwood

Introduction Detailed mapping of the valley-fill aquifer within the Susquehanna River valley and adjacent tributary valleys in south-central Broome County (Towns of Conklin and Kirkwood) is the latest study in the cooperative Detailed Aquifer Mapping Program between the US Geological Survey (USGS) and the New York State Department of Environmental Conservation (NYSDEC). The aim of the...

Contacts: Paul Heisig
Date published: September 23, 2015
Status: Active

Simulation of Zones of Groundwater Contribution to Three Well Fields Southwest Portion of the Naval Weapons Industrial Reserve Plant, Bethpage, New York

Summary The U. S. Geological Survey (USGS) will conduct simulations using existing aquifer data, including geologic logs from vertical profile borings (VPBs) and well installations, water levels, and pump test data available from the water districts for these production wells. Subsequently USGS will incorporate data from a groundwater pump test and additional data from new VPBs and...

Date published: September 22, 2015
Status: Active

A New Tool for Estimating Daily Mean Streamflow Statistics at Rural Streams in New York State, excluding Long Island

The lakes, rivers, and streams of New York State provide an essential water resource for the State. The information provided by time series hydrologic data is essential to understanding ways to promote healthy instream ecology and to strengthen the scientific basis for sound water management decision making in New York. The U.S. Geological Survey, in cooperation with The Nature Conservancy and...

Filter Total Items: 16,199
Publication Thumbnail
Year Published: 2018

On the robustness of N‐mixture models

N‐mixture models provide an appealing alternative to mark–recapture models, in that they allow for estimation of detection probability and population size from count data, without requiring that individual animals be identified. There is, however, a cost to using the N‐mixture models: inference is very sensitive to the model's assumptions. We...

Link, William A.; Schofield, Matthew R.; Barker, Richard J.; Sauer, John R.
Link, W. A., Schofield, M. R., Barker, R. J., and Sauer, J. R., 2018, On the Robustness of N-mixture models: Ecology, v. 99, no. 7, p. 1547-1551. https://doi.org/10.1002/ecy.2362

Publication Thumbnail
Year Published: 2018

Female hatchling American kestrels have a larger hippocampus than males: A link with sexual size dimorphism?

The brain and underlying cognition may vary adaptively according to an organism’s ecology. As with all raptor species, adult American kestrels (Falco sparverius) are sexually dimorphic with females being larger than males. Related to this sexual dimorphism, kestrels display sex differences in hunting and migration, with females ranging more widely...

Guigueno, Melanie F.; Karouna-Renier, Natalie K.; Henry, Paula F. P.; Head, Jessica A.; Peters, Lisa E.; Palace, Vince P.; Letcher, Robert J.; Fernie, Kimberly J.
Guigueno, M. F., Karouna-Renier, N. K., Henry, P. F. P., Head, J. A., Peters, L. E., Palace, V. P., Letcher, R. J., and Fernie, K. J., 2018, Female hatchling American kestrels have a larger hippocampus than males: A link with sexual size dimorphism?: Behavioral Brain Research, v. 349, p. 98-101. https://doi.org/10.1016/j.bbr.2018.04.037

Publication Thumbnail
Year Published: 2018

Shifts in the relationship between mRNA and protein abundance of gill ion-transporters during smolt development and seawater acclimation in Atlantic salmon (Salmo salar)

Smolting Atlantic salmon exhibit a seasonal increase in seawater tolerance that is associated with changes in the abundance of major gill ion-transporter transcripts and proteins. In the present study, we investigate how the transcript and protein abundance of specific ion-transporter isoforms relate to each other during smolt...

Christensen, Arne K.; Regish, Amy M.; McCormick, Stephen D.
Christensen, A.K., Regish, A.M. and McCormick, S. D. 2018. Shifts in the relationship between mRNA and protein abundance of gill iontransporters during smolt development and seawater acclimation in Atlantic salmon (Salmo salar). Comparative Biochemistry and Physiology, Part A 221: 63-73.

Publication Thumbnail
Year Published: 2018

Environmental controls, emergent scaling, and predictions of greenhouse gas (GHG) fluxes in coastal salt marshes

Coastal salt marshes play an important role in mitigating global warming by removing atmospheric carbon at a high rate. We investigated the environmental controls and emergent scaling of major greenhouse gas (GHG) fluxes such as carbon dioxide (CO2) and methane (CH4) in coastal salt marshes by conducting data analytics and empirical modeling. The...

Abdul-Aziz, Omar I.; Ishitaq, Khandker S.; Tang, Jianwu; Moseman-Valtierra, Serena; Kroeger, Kevin D.; Gonneea Eagle, Meagan; Mora, Jordan; Morkeski, Kate
Abdul-Aziz, O. I., Ishtiaq, K. S., Tang, J.,Moseman-Valtierra, S., Kroeger, K. D.,Gonneea, M. E., et al. (2018).Environmental controls, emergentscaling, and predictions of greenhousegas (GHG)fluxes in coastal salt marshes.Journal of Geophysical Research:Biogeosciences,123, 2234–2256. https://doi.org/10.1029/2018JG004556

Publication Thumbnail
Year Published: 2018

Wollastonite

No abstract available.

Curry, Kenneth C.

Publication Thumbnail
Year Published: 2018

Mica

No abstract available.

Curry, Kenneth C.

Publication Thumbnail
Year Published: 2018

Industrial garnet

No abstract available.

Curry, Kenneth C.

Publication Thumbnail
Year Published: 2018

Understanding and distinguishing reflectance measurements of solid bitumen and vitrinite using hydrous pyrolysis: Implications to petroleum assessment

Solid bitumen is a common organic component of thermally mature shales and typically is identified by embayment against euhedral mineral terminations and by groundmass textures. However, because these textures are not always present, solid bitumen can be easily misidentified as vitrinite. Hydrous-pyrolysis experiments (72 hr, 300°C–360°C) on shale...

Hackley, Paul C.; Lewan, Michael

Publication Thumbnail
Year Published: 2018

An evaluation of the toxicity of potassium chloride, active compound in the molluscicide potash, on salmonid fish and their forage base

Potash, with the active ingredient potassium chloride (KCl) is a chemical that is currently being evaluated for potential use as a molluscicide to combat invasive zebra mussels and quagga mussels in Western United States waters. Although data available for other freshwater fishes indicate that recommended treatment levels of potash as a...

Densmore, Christine L.; Iwanowicz, Luke R.; Henderson, Anne P.; Blazer, Vicki S.; Reed-Grimmett, Baileigh M.; Sanders, Lakyn R.
Densmore, C.L., Iwanowicz, L.R., Henderson, A.P., Blazer, V.S., Reed-Grimmett, B.M., and Sanders, L.R., 2018, An evaluation of the toxicity of potassium chloride, active compound in the molluscicide potash, on salmonid fish and their forage base: U.S. Geological Survey Open-File Report 2018–1080, 33 p., https://doi.org/10.3133/ofr20181080.

Publication Thumbnail
Year Published: 2018

Decision making for mitigating wildlife diseases: From theory to practice for an emerging fungal pathogen of amphibians

Conservation science can be most effective in its decision‐support role when seeking answers to clearly formulated questions of direct management relevance. Emerging wildlife diseases, a driver of global biodiversity loss, illustrate the challenges of performing this role: in spite of considerable research, successful disease mitigation is...

Canessa, Stefano; Bozzutto, Claudio; Campbell Grant, Evan H.; Cruickshank, Sam S.; Fisher, Matthew C.; Koella, Jacob C.; Lotters, Stefan; Martel, An; Pasmans, Frank; Scheele, Ben C.; Spitzen-van der Sluijs, Annemarieke; Steinfartz, Sebastian; Schmidt, Benedikt R.
Canessa, S., Bozzuto, C., Grant, E. H. C., Cruickshank, S. S., Fisher, M. C., Koella, J. C., Lötters, S., Martel, A., Pasmans, F., Scheele, B. C., Spitzen-van der Sluijs, A., Steinfartz, S., and Schmidt, B. R., 2018, Decision making for mitigating wildlife diseases: from theory to practice for an emerging fungal pathogen of amphibians: Journal of Applied Ecology, v. 55, no. 4, p. 1987-1996. https://doi.org/10.1111/1365-2664.13089

Publication Thumbnail
Year Published: 2018

Two-species occupancy modeling accounting for species misidentification and nondetection

In occupancy studies, species misidentification can lead to false‐positive detections, which can cause severe estimator biases. Currently, all models that account for false‐positive errors only consider omnibus sources of false detections and are limited to single‐species occupancy.However, false detections for a given species often occur because...

Chambert, Thierry; Campbell Grant, Evan H.; Miller, David A. W.; Nichols, James D.; Mulder, Kevin P.; Brand, Adrianne B.
Chambert, T., Grant, E. H. C., Miller, D. A. W., Nichols, J. D., Mulder, K. P., and Brand, A. B., 2018, Two-species occupancy modeling accounting for species misidentification and nondetection: Methods in Ecology and Evolution, v. 9, no. 6, p. 1468-1477. https://doi.org/10.1111/2041-210X.12985

Publication Thumbnail
Year Published: 2018

Sulfur isotopes of host strata for Howards Pass (Yukon–Northwest Territories) Zn-Pb deposits implicate anaerobic oxidation of methane, not basin stagnation

A new sulfur isotope stratigraphic profile has been developed for Ordovician-Silurian mudstones that host the Howards Pass Zn-Pb deposits (Canada) in an attempt to reconcile the traditional model of a stagnant euxinic basin setting with new contradictory findings. Our analyses of pyrite confirm the up-section 34S enrichment reported...

Johnson, Craig A.; Slack, John F.; Dumoulin, Julie A.; Kelley, Karen Duttweiler; Falck, Hendrik
Johnson, C.A., Slack, J.F., Dumoulin, J.A., Kelley, K.D., and Falck, H., 2018, Sulfur isotopes of host strata for Howards Pass (Yukon-Northwest Territories) Zn-Pb deposits implicate anaerobic oxidation of methane, not basin stagnation: Geology, v. 46, p. 619-622.

Filter Total Items: 1,774
A manned boat is pulled back and forth across the river on a static line to make smooth transects for an ADCP measurement.
April 7, 2017

Highflow measurement downstream of a dam

High flow measurements are important is refining and confirming the validity of the high end of discharge ratings. Here, a technician moves the manned boat back and forth across the river channel with an ADCP tethered to the side of
...