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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March Photo Contest

March Photo Contest

Check out the winning photographs in the March 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: 1,148
Date published: April 10, 2020
Status: Active

The response of coastal wetlands to sea-level rise: Understanding how macroscale drivers influence local processes and feedbacks

The purpose of this work is to advance our understanding of how coastal wetland responses to SLR within the conterminous United States are likely to vary as a function of local, regional, and macroscale drivers, including climate. Based on our interactions with managers and decision makers, as well as our knowledge of the current state of the science, we propose to (a) conduct a national...

Date published: April 9, 2020
Status: Active

Analysis of Factors Affecting Plume Remediation in a Sole-Source Aquifer System, Nassau County, New York (Northrup Grumman Plume)

Problem: Dissolved volatile-organic compounds (VOCs), including trichloroethylene (TCE), have been identified in a sole-source aquifer near the former Northrop Grumman Bethpage facility and Naval Weapons Industrial Reserve Plant (NWIRP) in Nassau County, N.Y. The Northrop Grumman Bethpage facility and NWIRP are listed as Class II inactive hazardous waste disposal sites (Site Nos. HW130003A...

Date published: April 8, 2020
Status: Active

Rafinesque’s Mammals

The Challenge: Taxonomic nomenclature relies, in part, upon an accurate taxonomic history in order to establish the correct name for a taxon. Constantine S. Rafinesque (1783–1840), was a knowledgeable North American natural historian who was is responsible for describing and naming such iconic American mammals as the mule deer [Odocoileus hemionus (Rafinesque, 1817)] and the white-footed mouse...

Date published: April 8, 2020
Status: Active

Survival of the Least Fit: Incidence of Physical Trauma in a Wild Mammal Community

The Challenge: It has been generally considered that a severe injury to a wild mammal that seemingly limits its ability to forage for food or escape predators will almost certainly lead to that individual’s demise.  Inspection of skeletons of wild caught small mammals, however, has revealed a surprising number of individuals with healed fractures of the skeletal bones―including the primary...

Date published: April 8, 2020
Status: Active

Diversity and Biogeography of Treeshrews

The Challenge: Treeshrews (order Scandentia) are small-bodied mammals endemic to South and Southeast Asia. Since it was first described in 1820, the Common Treeshrew (Tupaia glis) has had a complex taxonomic history that has led to widely variable estimates of diversity, misidentification of populations, and general confusion regarding it and closely related species. One result is that T. glis...

Date published: April 8, 2020
Status: Active

Biodiversity of North American Mammals

The Challenge: Despite more than a century and a half of study, accurate understanding of the diversity North American mammalian species and the distribution of those species remains unrefined. Yet this understanding is essential for determining the conservation status of species, for mapping out potential disease reservoirs, and for understanding the response of species to habitat...

Date published: April 8, 2020
Status: Active

How Mammals Move: Locomotory Function in the Soricidae

The Challenge: The postcranial skeletons of mammals exhibit tremendous variation in form that partly relates to phylogeny (who a particular species is related to) and partly to locomotory function (how that species moves through its environment). Understanding the contributions of these two factors is important because phylogenetic characters assist in working out evolutionary relationships,...

Date published: April 8, 2020
Status: Active

What Ancient Egyptian Shrew Mummies Reveal About Small Mammal Responses to Climate Change

The Challenge: Ancient Egyptians mummified animals for a variety of reasons, not the least of which was as votive offerings to certain deities. Among the six species of shrews that have been identified as mummies, one is now extinct, one is no longer occurs in Egypt, and the remaining four have more restricted distributions in the country. One of the latter species also exhibits significantly...

Date published: April 7, 2020
Status: Active

Immune System Changes and Susceptibility to Disease in Birds Exposed to Environmental Contaminants

Disease dynamics in wildlife are commonly related to changes or increases in environmental stressors that are placed upon an animal. Environmental pollutants are known to affect the immune system of wildlife, resulting in impaired resistance to infection and potential increases in disease outbreaks.

In collaboration with: Jill Jenkins, Ph.D USGS Wetland and Aquatic Research Center;...

Date published: April 7, 2020
Status: Active

Effects of Short Chain Chlorinated Paraffins (SCCPs) on developing birds

The Challenge: Short-Chain Chlorinated Paraffins (SCCPs) are complex technical mixtures of polychlorinated n-alkanes used in lubricants and coolants in metalworking, as flame retardants, and in paints, adhesives, sealants, textiles and polymeric materials, plastics and rubber. SCCPs are of concern because they are globally transported, bioaccumulate in wildlife and humans, and are...

Date published: April 7, 2020
Status: Active

Do pesticide coatings on agricultural seeds pose a threat to earthworms and to the birds that eat them?

Earthworms are a vital part of a healthy, functioning soil ecosystem and are also an important protein-rich food source for wildlife, including many species of birds and mammals. In an agricultural setting, the presence of earthworms can increase crop yields by 25%, but can also expose earthworms to pesticides. Seed treatment is the principal application method for neonicotinoid insecticides,...

Date published: April 3, 2020
Status: Active

Mine Drainage and Water Quality Research

PaWSC conducts research on geochemical and hydrological processes that control water quality, particularly the sources, transport, and attenuation of metals and nutrients in undisturbed and mining-impacted watersheds and aquifers.  Results apply to scientific and regulatory programs for the prevention and remediation of aquatic contamination.

Filter Total Items: 482
Date published: June 10, 2020

Model archive for analysis of the effects of impervious cover on receiving-water quality with the Stochastic Empirical Loading Dilution Model (SELDM)

This is a model archive of SELDM development data and simulation results of total phosphorus concentrations in concurrent stormflows from drainage basins in the Northeastern U.S. with varying levels of imperviousness. Model development files include details of simulated hydrology, basin properties, upstream undeveloped area water quality, and developed area (impervious area) runoff qual

Date published: June 9, 2020

Potomac River ADCP Bathymetric Survey, October 2019

Water-penetrating LiDAR technology was used to remotely sense bathymetric elevation data as part of a spatial data acquisition on the Potomac River. In support of this effort, a bathymetric survey with a boat-mounted acoustic Doppler current profiler (ADCP) was conducted in the study area on October 21-24, 2019. Global Navigational Satellite Systems (GNSS) were used to concurrently

Date published: June 9, 2020

Nanoscale Molecular Composition of Solid Bitumen from the Eagle Ford Group Across a Natural Thermal Maturity Gradient

Solid bitumen is a petrographically-defined secondary organic matter residue produced during petroleum generation and subsequent oil transformation. The presence of solid bitumen impacts many shale reservoir properties including porosity, permeability, and hydrocarbon generation and storage, amongst others. Furthermore, solid bitumen reflectance is an important parameter for assessing the

Date published: June 8, 2020

Reported groundwater levels and groundwater pump-and-treat withdrawal volumes, former Naval Air Warfare Center, West Trenton, New Jersey, 2018

This dataset contains U.S. Navy contractor-reported groundwater level data measured on June 18, 2018 and reported daily total groundwater pump-and-treat withdrawal volumes for calendar year 2018 at the former Naval Air Warfare Center, West Trenton, New Jersey. This data release supports: Fiore, A.R., and Lacombe, P.J., 2020, Groundwater levels and generalized potentiometric s

Date published: June 2, 2020

Coastal wetlands of north shore Long Island, New York

This data release contains coastal wetland synthesis products for the geographic region of north shore Long Island, New York. Metrics for resiliency, including unvegetated to vegetated ratio (UVVR), marsh elevation, and mean tidal range, are calculated for smaller units delineated from a Digital Elevation Model, providing the spatial variability of physical factors that influence wetland...

Date published: June 2, 2020

Slope Values Across Marsh-Forest Boundary in Chesapeake Bay Region, USA

The marsh-forest boundary in the Chesapeake Bay was determined by geoprocessing high-resolution (1 square meter) land use and land cover data sets. Perpendicular transects were cast at standard intervals (30 meters) along the boundary within a GIS by repurposing the...

Date published: June 2, 2020

Exposure potential of marsh units to environmental health stressors in north shore Long Island salt marsh complex, New York

This data release contains coastal wetland synthesis products for the geographic region of north shore Long Island, New York. Metrics for resiliency, including unvegetated to vegetated ratio (UVVR), marsh elevation, and mean tidal range, are calculated for smaller units delineated from a Digital Elevation Model, providing the spatial variability of physical factors that influence

Date published: June 2, 2020

Rate of shoreline change of marsh units in north shore Long Island salt marsh complex, New York

This data release contains coastal wetland synthesis products for the geographic region of north shore Long Island, New York. Metrics for resiliency, including unvegetated to vegetated ratio (UVVR), marsh elevation, mean tidal range, and shoreline change rate are calculated for smaller units delineated from a Digital Elevation Model, providing the spatial variability of physical f

Date published: June 2, 2020

Mean tidal range of marsh units in north shore Long Island salt marsh complex, New York

This data release contains coastal wetland synthesis products for the geographic region of north shore Long Island, New York. Metrics for resiliency, including unvegetated to vegetated ratio (UVVR), marsh elevation, and mean tidal range, are calculated for smaller units delineated from a Digital Elevation Model, providing the spatial variability of physical factors that influence

Date published: June 2, 2020

Conceptual marsh units of north shore Long Island salt marsh complex, New York

This data release contains coastal wetland synthesis products for the geographic region of north shore Long Island, New York. Metrics for resiliency, including unvegetated to vegetated ratio (UVVR), marsh elevation, and mean tidal range, are calculated for smaller units delineated from a Digital Elevation Model, providing the spatial variability of physical factors that influence

Date published: June 2, 2020

Unvegetated to vegetated ratio of marsh units in north shore Long Island salt marsh complex, New York

This data release contains coastal wetland synthesis products for the geographic region of north shore Long Island, New York. Metrics for resiliency, including unvegetated to vegetated ratio (UVVR), marsh elevation, and mean tidal range, are calculated for smaller units delineated from a Digital Elevation Model, providing the spatial variability of physical factors that influence

Date published: June 2, 2020

Slope Values Across Marsh-Forest Boundary in Chesapeake Bay Region, USA

The marsh-forest boundary in the Chesapeake Bay was determined by geoprocessing high-resolution (1 square meter) land use and land cover data sets. Perpendicular transects were cast at standard intervals (30 meters) along the boundary within a GIS by repurposing the Digital Shoreline Analysis System (DSAS) Version 5.0, an ArcGIS extension developed by the U.S. Geological Survey. Ave

Filter Total Items: 15,993
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Year Published: 2021

Why Lyme disease is common in the northern US, but rare in the south: The roles of host choice, host-seeking behavior, and tick density

Lyme disease is common in the northeastern United States, but rare in the southeast, even though the tick vector is found in both regions. Infection prevalence of Lyme spirochetes in host-seeking ticks, an important component to the risk of Lyme disease, is also high in the northeast and northern midwest, but declines sharply in the south. As...

Ginsberg, Howard; Hickling, Graham J.; Burke, Russell L.; Ogden, Nicholas H.; Beati, Lorenza; LeBrun, Roger A.; Arsnoe, Isis M.; Gerhold, Rick; Han, Seungeun; Jackson, Kaetlyn; Maestas, Lauren; Moody, Teresa; Pang, Genevieve; Ross, Briann; Rulison, Eric L.; Tsao, Jean I.

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Year Published: 2021

Changing climate drives future streamflow declines and challenges in meeting water demand across the southwestern United States

Society and the environment in the arid southwestern United States depend on reliable water availability, yet current water use outpaces supply. Water demand is projected to grow in the future and climate change is expected to reduce supply. To adapt, water managers need robust estimates of future regional water supply to support management...

Miller, Olivia L.; Putman, Annie Laura; Alder, Jay R.; Miller, Matthew; Jones, Daniel K.; Wise, Daniel

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Year Published: 2021

In vitro effects-based method and water quality screening model for use in pre- and post-distribution treated waters

Recent urban public water supply contamination events emphasize the importance of screening treated drinking water quality after distribution. In vitro bioassays, when run concurrently with analytical chemistry methods, are effective tools to evaluating the efficacy of water treatment processes and water quality. We tested 49 water...

Medlock-Kakaley, Elizabeth; Cardon, Mary C.; Evans, Nicola; Iwanowicz, Luke R.; Allen, Joshua M.; Wagner, Elizabeth; Bokenkamp, Katherine; Richardson, Susan D; Plewa, Michael J; Bradley, Paul; Romanok, Kristin; Kolpin, Dana W.; Conley, Justin M.; Gray, L. Earl Jr.; Hartig, Phillip C.; Wilson, Vickie S.

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Year Published: 2021

Habitat use as indicator of adaptive capacity to climate change

AimPopulations of cold‐adapted species at the trailing edges of geographic ranges are particularly vulnerable to the negative effects of climate change from the combination of exposure to warm temperatures and high sensitivity to heat. Many of these species are predicted to decline under future climate scenarios, but they could persist if they can...

Teitelbaum, Claire S.; Siren, Alexej P. K.; Coffel, Ethan; Foster, Jane R.; Frair, Jacqueline L.; Hinton, Joseph W.; Horton, Radley W.; Kramer, David W.; Lesk, Corey; Raymond, Colin; Wattles, David; Zeller, Katherine; Morelli, Toni Lyn

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Year Published: 2021

Sentinel-2 and WorldView-3 atmospheric correction and signal normalization based on ground-truth spectroradiometric measurements

Remote sensing satellite Earth Observing Systems (EOS) provide a variety of products for monitoring Earth surface processes at varying spatial and spectral resolutions. Combining information from high and medium spatial resolution images is valuable for monitoring ground cover and vegetation status in cropland, grassland, forests, and other...

Pancorbo, J.L.; Lamb, Brian T.; Quemada, Miguel; Hively, W. Dean; Gonzalez-Fernandez, I.; Molina, Inigo

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Year Published: 2021

Does geomorphology determine vulnerability of mangrove coasts to sea-level rise?

The greatest climate-based threat to coastlines worldwide is sea-level rise. We tested the hypothesis that tropical coasts fringed by mangroves and receiving high inputs of terrigenous sediment are less vulnerable to sea-level rise than biogenic systems dependent upon peat formation for vertical land development. An analysis of published data...

McKee, Karen L.; Krauss, Ken; Cahoon, Donald

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Year Published: 2021

Using expert knowledge to support Endangered Species Act decision‐making for data‐deficient species

Many questions relevant to conservation decision making are characterized by extreme uncertainty due to lack of empirical data and complexity of the underlying ecological processes, leading to a rapid increase in the use of structured protocols to elicit expert knowledge. Published ecological applications often employ a modified Delphi method,...

Fitzgerald, Daniel Bruce; Smith, David R.; Culver, David C.; Feller, Daniel; Fong, Daniel W.; Hajenga, Jeff; Niemiller, Matthew L.; Nolfi, Daniel C.; Orndorff, Wil D.; Douglas, Barbara; Maloney, Kelly O.; Young, John A.

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Year Published: 2021

Assessing the impact of drought on arsenic exposure from private domestic wells in the conterminous United States

This study assesses the potential impact of drought on arsenic exposure from private domestic wells by using a previously developed statistical model that predicts the probability of elevated arsenic concentrations (>10 μg per liter) in water from domestic wells located in the conterminous United States (CONUS). The application of the model to...

Lombard, Melissa; Daniel, Johnni; Jeddy, Zuha; Hay, Lauren; Ayotte, Joseph D.

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Year Published: 2021

Monitoring wetland water quality related to livestock grazing in amphibian habitats

Land use alteration such as livestock grazing can affect water quality in habitats of at-risk wildlife species. Data from managed wetlands are needed to understand levels of exposure for aquatic life stages and monitor grazing-related changes afield. We quantified spatial and temporal variation in water quality in wetlands occupied by threatened...

Smalling, Kelly; Rowe, Jennifer; Pearl, Christopher; Iwanowicz, Luke R.; Givens, Carrie E.; Anderson, Chauncey W.; Mccreary, Brome; Adams, Michael J.

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Year Published: 2021

Groundwater discharge impacts marine isotope budgets of Li, Mg, Ca, Sr, and Ba

Groundwater-derived solute fluxes to the ocean have long been assumed static and subordinate to riverine fluxes, if not neglected entirely, in marine isotope budgets. Here we present concentration and isotope data for Li, Mg, Ca, Sr, and Ba in coastal groundwaters to constrain the importance of groundwater discharge in mediating the magnitude and...

Mayfield, Kimberly; Eisenhauer, Anton; Santiago Ramos, Danielle P.; Higgins, John A.; Horner, Tristan; Auro, Maureen; Magna, Tomas; Moosdorf, Nils; Charette, Matthew; Gonneea Eagle, Meagan; Brady, Carolyn; Komar, Nemanja; Peucker-Ehrenbrink, Bernard; Paytan, Adina

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Year Published: 2021

Statistical methods for simulating structural stormwater runoff best management practices (BMPs) with the Stochastic Empirical Loading and Dilution Model (SELDM)

This report documents statistics for simulating structural stormwater runoff best management practices (BMPs) with the Stochastic Empirical Loading and Dilution Model (SELDM). The U.S. Geological Survey developed SELDM and the statistics documented in this report in cooperation with the Federal Highway Administration to indicate the risk for...

Granato, Gregory E.; Spaetzel, Alana B.; Medalie, Laura
Granato, G.E., Spaetzel, A.B., and Medalie, L., 2021, Statistical methods for simulating structural stormwater runoff best management practices (BMPs) with the Stochastic Empirical Loading and Dilution Model (SELDM): U.S. Geological Survey Scientific Investigations Report 2020–5136, 41 p., https://doi.org/10.3133/sir20205136.

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Year Published: 2021

Measuring U.S. Federal Agency progress toward implementation of alternative methods in toxicity testing

The U.S. Government Accountability Office (GAO) recommended to Congress that federal agencies establish a workgroup through ICCVAM to propose metrics for assessing progress on the development and promotion of alternative methods. This document describes the recommendations of the ICCVAM Metrics Workgroup.

Gordon, John D.; Clarke, Carol; Johnson, Matthew; Reinke, Emily N.; Rattner, Barnett A.; Hwang, Steve; Craig, Evisabel; Lowit, Anna; Brown, Paul; Davis-Bruno, Karen L.; Crusan, Annabelle; Fitzpatrick, Suzanne; Kang, Jueichuan; Levis, Robin; Mendrick, Donna L.; Merrill, Jill; Berridge, Brian; Casey, Warren; Kleinstreuer, Nicole; Watson, Harold

Filter Total Items: 64
USGS
October 1, 1997

Computes estimates of survival and capture probability for 2-age class open population capture-recapture models.

USGS
September 2, 1997

Computes estimates of survival and capture probability and the proportion of transients in open population capture-recapture data.

USGS
February 1, 1996

Analyzes dose responses for two populations, using the PROBIT model and the abbreviated protocol as described by Link et al(1996).

USGS
January 26, 1996

Computes estimates of survival-movement and capture probability for open capture-recapture models.

USGS
November 8, 1994

Compares estimates of survival (or any normally distributed parameter estimates).

USGS
April 26, 1994

Tests the hypothesis of prey-selectivity based on random samples of predator scats.

USGS
February 24, 1994

Estimates fatalities using raw counts of wildlife fatalities, trial experiments for carcass detection probability and persistence time.

USGS
June 2, 1989

Computes the number of animals that must be banded in order to achieve a specified level of precision for survival rates estimated using band recovery models.

USGS
April 26, 1988

Computes the power of between-model likelihood ratio tests.

USGS
January 12, 1988

Computes estimates of survival and temporary emigration under the "Open Robust Design".

USGS
October 28, 1987

Computes estimates of survival and capture probability for capture-recapture experiments on open animal populations.

USGS
April 5, 1987

Computes estimates of capture probability and population size for "closed" population capture-recapture data.

Filter Total Items: 1,718
September 9, 2020

SDC Seminar: Defining and Using Evidence in Conservation Practice

This is the Science and Decisions Center Seminar Series presentation of Defining and Using Evidence in Conservation Practice with Nick Salafsky, Director, Foundations of Success. Nick focuses on sharing new work on the development of shared evidence libraries based around theory-of-change pathways for key conservation actions. Nick draws on insights of evidence-based

Dry river bed during 2020 drought - Mill River at Cook Hill Rd. in Cheshire, Connecticut
September 3, 2020

Dry river bed during 2020 drought - Mill River, Cheshire, Connecticut

Station 01196588 Mill River at Cook Hill Rd. in Cheshire, Connecticut.

Photo shows dry river channel at location of staff gage.

Wildwood NJ Surf
August 20, 2020

Wildwood NJ Surf

Photo of the surf and clouds in Wildwood, NJ November 2019. 

2020 drought impact on Sudbury River in Saxonville, Massachusetts
August 20, 2020

2020 drought impact on Sudbury River in Saxonville, Massachusetts

2020 drought impact on Sudbury River near the USGS station 01098530 in Saxonville, Massachusetts

2020 drought impact on Segreganset River near USGS station 01109070, Dighton, Massachusetts
August 19, 2020

2020 drought impact on Segreganset River near Dighton, Massachusetts

2020 drought impact on Segreganset River near USGS station 01109070, Dighton, Massachusetts

Lake, tree, water vessels, fence
August 12, 2020

Lake George in the Fall

Lake George, New York, in the fall with a dock and watercraft.

2020 drought impact on Quinebaug River, West Thompson, Connecticut
August 11, 2020

2020 drought impact on Quinebaug River, West Thompson, Connecticut

Station 01124151 Quinebaug River West Thompson Connecticut. Photo shows the orifice line that senses the river stage. The orifice is out of water, so we were not able to collect stage or discharge data. The orifice line was extended further into the channel to a

...
Quinebaug River during 2020 drought, West Thompson, Connecticut
August 11, 2020

Quinebaug River during 2020 drought, West Thompson, Connecticut

Quinebaug River near West Thompson, Connecticut. Photo shows one of few deeper pools of water in the 01124151 station vicinity during drought.

USGS boat crew on Merrimack River, Massachusetts
July 1, 2020

USGS boat crew on Merrimack River, Massachusetts

Two USGS scientists traveling by boat to estuary sampling and monitoring stations, Merrimack River, Massachusetts

Photograph of USGS staff in the marsh wearing masks
June 8, 2020

Social distancing in the field

Safety is a top priority. USGS staff recently improved access to field sites at the Herring River estuary within the Cape Cod National Seashore to provide safer paths through a phragmites wetland. Research continues largely through deployment of instruments that can take measurements in water and air continuously, but some measurements do require staff, who are

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Filter Total Items: 263
TNMCorps Mapping Challenge: Timelapse of City/Town Halls in OH & WV
December 18, 2019

This challenge is now complete!!  Thank you to everyone who contributed!  Here is a time lapse of our volunteer contributions for this challenge:

TNMCorps Mapping Challenge: City/Town Halls in Ohio and West Virginia
December 5, 2019

Here is the weekly update for this challenge.  West Virginia is nearing completion while Ohio is filling in nicely with more and more counties becoming populated!  However, there's still several villages yet to be added for Ohio.

TNMCorps Mapping Challenge: City/Town Halls in Ohio and West Virginia
November 21, 2019

Here is the weekly update for this challenge - it's exciting to see more counties filling in! Keep an eye out for another article on city / town halls in this month's newsletter.

Large stormwater retention pond compared to a green stormwater infrastructure dry pond with native vegetation.
November 18, 2019

A new study finds that a high density of green stormwater infrastructure can provide enhanced mitigation of peak flows and runoff volumes compared to large, detention-based stormwater control practices.

man on bridge over flooding creek controlling an adcp
November 1, 2019

Summary of Event Impact:
Record and Major flooding in parts of the Southern Adirondacks and northern Mohawk Valley October 31-November 1.

Event Information:
Record and Major flooding occurred in parts of the Southern Adirondacks
and northern Mohawk Valley October 31-November 1 as a result of
3-5+ inches of rainfall last night.

Surveying for the FEMA project
November 1, 2019

U.S. Geological Survey and Federal Emergency Management Agency are seeking feedback and information from towns in the Otter Creek watershed, Vermont, after two Discovery Meetings were held on October 29 and 30.

TNMCorps Mapping Challenge: City/Town Halls in Ohio and West Virginia
October 31, 2019

This challenge is coming along nice and steady! Ohio is especially starting to look nice; points are coming in county-by-county with close to another 100 points added since last week's update!

TNMCorps Mapping Challenge: City/Town Halls in Ohio and West Virginia
October 24, 2019

City/Town Halls continue to come in for this challenge!  Nice work!

Filter Total Items: 590