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: 479
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

Date published: June 2, 2020

Elevation 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 1, 2020

Continuous monitoring data from Great Barnstable Marsh on Cape Cod, Massachusetts, 2017-19

These USGS datasets can be used to evaluate changes in water levels across ditched and natural salt marsh regions and provide information for any future studies of salt marsh productivity and geomorphic models in Great Barnstable Marsh.

Date published: June 1, 2020

Continuous Monitoring Data From Great Barnstable Marsh on Cape Cod, Massachusetts, 2017-19

Salt marshes are environmental ecosystems that contribute to coastal landscape resiliency to storms and rising sea level. Ninety percent of mid-Atlantic and New England salt marshes have been impacted by parallel grid ditching that began in the 1920s–40s to control mosquito populations and to provide employment opportunities during the Great Depression (James-Pirri and others, 2009;

Filter Total Items: 15,972
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Year Published: 2021

Lithium in groundwater used for drinking-water supply in the United States

Lithium concentrations in untreated groundwater from 1464 public-supply wells and 1676 domestic-supply wells distributed across 33 principal aquifers in the United States were evaluated for spatial variations and possible explanatory factors. Concentrations nationwide ranged from <1 to 396 μg/L (median of 8.1) for public supply wells and...

Lindsey, Bruce D.; Belitz, Kenneth; Cravotta, Charles A.; Toccalino, Patricia; Dubrovsky, Neil M.

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Year Published: 2021

Crossroads of highly pathogenic H5N1: overlap between wild and domestic birds in the Black Sea-Mediterranean impacts global transmission

Understanding transmission dynamics that link wild and domestic animals is a key element of predicting the emergence of infectious disease, an event that has highest likelihood of occurring wherever human livelihoods depend on agriculture and animal trade. Contact between poultry and wild birds is a key driver of the emergence of highly pathogenic...

Hill, Nichola J.; Smith, Lacy M.; Muzaffar, Sabir B.; Nagel, Jessica L.; Prosser, Diann; Sullivan, Jeffery D.; Spragens, Kyle A.; DeMattos, Carlos A.; Demattos, Cecilia C.; El Sayed, Lu'ay; Erciyas-Yavuz, Kiraz; Davis, C. Todd; Jones, Joyce; Kis, Zoltan; Donis, Ruben O.; Newman, Scott H.; Takekawa, John Y.

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Year Published: 2021

Estimating the impact of seep methane oxidation on ocean pH and dissolved inorganic radiocarbon along the U.S. mid‐Atlantic Bight

Ongoing ocean warming can release methane (CH4) currently stored in ocean sediments as free gas and gas hydrates. Once dissolved in ocean waters, this CH4 can be oxidized to carbon dioxide (CO2). While it has been hypothesized that the CO2 produced from aerobic CH4 oxidation could enhance ocean acidification, a previous study...

Garcia-Tigreros, Fenix; Leonte, Mihai; Ruppel, Carolyn D.; Ruiz-Angulo, Angel; Joung, DoongJoo; Young, Benjamin; Kessler, John D.

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Year Published: 2021

Modeling areal measures of campsite impacts on the Appalachian National Scenic Trail to enhance ecological sustainability

Campsite impacts in protected natural areas are most effectively minimized by a containment strategy that focuses use on a limited number of sustainable campsites that spatially concentrate camping activities. This research employs spatial autoregressive (SAR) modeling to evaluate the relative influence of use-related, environmental, and...

Arredondo, Johanna R.; Marion, Jeffrey L.; Meadema, Fletcher P.; Wimpey, Jeremy F.

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Year Published: 2021

Observations on long-term memory in honey bees

No abstract available. 

Vyas, Nimish B.; Plunkett, Amanda D.; Baker, Diana

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Year Published: 2021

Limited mantle hydration by bending faults at the Middle America Trench

Seismic anisotropy measurements show that upper mantle hydration at the Middle America Trench (MAT) is limited to serpentinization and/or water in fault zones, rather than distributed uniformly. Subduction of hydrated oceanic lithosphere recycles water back into the deep mantle, drives arc volcanism, and affects seismicity at subduction zones....

Miller, Nathaniel C.; Lizarralde, Danile; Collins, John A.; Holbrook, Steven; van Avendonk, Harm

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Year Published: 2021

Heed the data gap: Guidelines for using incomplete datasets in annual stream temperature analyses

Stream temperature data are useful for deciphering watershed processes important for aquatic ecosystems. Accurately extracting signal trends from stream temperature is essential for predicting responses of environmental and ecological indicators to change. Missing data periods are common for various reasons, and pose a challenge for scientists...

Johnson, Zachary C.; Johnson, Brittany G.; Briggs, Martin A.; Snyder, Craig D.; Hitt, Nathaniel P.; Devine, Warren

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Year Published: 2021

Spatial capture–recapture with random thinning for unidentified encounters

Spatial capture–recapture (SCR) models have increasingly been used as a basis for combining capture–recapture data types with variable levels of individual identity information to estimate population density and other demographic parameters. Recent examples are the unmarked SCR (or spatial count model), where no individual identities are available...

Jiménez, José; Augustine, Ben; Linden, Daniel W.; Chandler, Richard B.; Royle, Andy

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Year Published: 2021

Evidence that watershed nutrient management practices effectively reduce estrogens in environmental waters

We evaluate the impacts of different nutrient management strategies on the potential for co-managing estrogens and nutrients in environmental waters of the Potomac watershed of the Chesapeake Bay. These potential co-management approaches represent agricultural and urban runoff, wastewater treatment plant effluent, and combined sewer overflow...

Duan, Shuiwang; Iwanowicz, Luke R.; Noguera-Oviedo, Katia; Kaushal, Sujay S.; Rosenfeld, Erik; Aga, Diana; Murthy, Sudhir

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Year Published: 2021

Interactive PHREEQ-N-AMDTreat water-quality modeling tools to evaluate performance and design of treatment systems for acid mine drainage

The PHREEQ-N-AMDTreat aqueous geochemical modeling tools described herein simulate changes in pH and solute concentrations resulting from passive and active treatment of acidic or alkaline mine drainage (AMD). The “user-friendly” interactive tools, which are publicly available software, utilize PHREEQC equilibrium aqueous and surface...

Cravotta, Charles A.

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Year Published: 2021

Optimal sampling design for spatial capture‐recapture

Spatial capture‐recapture (SCR) has emerged as the industry standard for estimating population density by leveraging information from spatial locations of repeat encounters of individuals. The precision of density estimates depends fundamentally on the number and spatial configuration of traps. Despite this knowledge, existing sampling design...

Dupont, Gates; Royle, J. Andrew; Nawaz, Muhammad Ali; Sutherland, Chris

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Year Published: 2021

Evaluation of a roughness length parametrization accounting for wind–wave alignment in a coupled atmosphere–wave model

The importance of wind energy as an alternative energy source has increased over the latest years with more focus on offshore winds. A good estimation of the offshore winds is thus of major importance for this industry. Up to now the effect of the wind–wave (mis)alignment has not yet been taken into account in coupled atmosphere–wave models to...

Porchetta, Sara; Temel, O.; Warner, John C.; Muñoz-Esparza, J.C.; Monbaliu, J; van Beeck, J.; van Lipzig, N.

Filter Total Items: 63
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.

USGS
March 26, 1986

Computes estimates of survival (or any model parameter) with multinomially distributed data.

Filter Total Items: 1,711
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

...
Merrimack River near Aiken St Bridge, Lowell, Massachusetts (USGS ID: 010965985)
June 6, 2020

Merrimack River near Aiken St Bridge, Lowell, Massachusetts

Merrimack River near Aiken St Bridge, Lowell, Massachusetts (USGS ID: 010965985).

The site is one of the Merrimack project water quality sampling and monitoring stations.

Photograph of USGS scientist on a ladder checking equipment
May 21, 2020

Rebecca Sanders-DeMott performing maintenance on an eddy flux tower

Instruments continue to collect vital data during workplace closures. Here staff perform maintenance on an eddy flux tower located within a phragmites wetland at the Cape Cod National Seashore. The instruments on this tower measure methane and CO2 fluxes related to plant and soil processes day in and day out for the entire year. This information is critical for

...
Map of gas hydrate locations known and inferred
May 16, 2020

Map of gas hydrate locations, known and inferred

Map of gas hydrate locations, known and inferred.  Browse graphic for ScienceBase data release, Preliminary global database of known and inferred gas hydrate locations. 

May 15, 2020

Capillary Action and Water

This video discusses how adhesion and cohesion work together to create capillary action! There is an experiment at the end of the video to demonstrate this as well! If you would like to do the experiment with us you will need: 1) Coffee filter 2) Washable marker 3) Glass of water
 

Map of SW Puerto Rico coast and seafloor
May 14, 2020

Finding Seafloor Faults Linked to Puerto Rico Earthquake

Map of the portion of the southwest coast of Puerto Rico affected by an earthquake sequence that began in December 2019, along with portions of the seafloor where faults involved in the earthquake sequence were suspected to exist. (A related image shows indications of seafloor faulting found on a USGS seismic research cruise led by USGS research geophysicist Uri ten Brink

...
Filter Total Items: 260
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!

TNMCorps Mapping Challenge: City/Town Halls in Ohio and West Virginia
October 10, 2019

This challenge is coming along nicely with another 150 points added since our last update!

TNMCorps Mapping Challenge: THUMBNAIL Timelapse of Mid-Atlantic City/Town Halls
October 3, 2019

Our Mid-Atlantic City / Town Hall mapping challenge is now finished!!  A huge shout-out to all of our volunteers who participated in this challenge!  Here are the summary results and a timelapse our volunteer contributions.

Filter Total Items: 590