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: April 30, 2020
Status: Active

Bird Habitat Needs in the Mississippi Alluvial Valley

Historically the Mississippi Alluvial Valley (MAV) was predominantly bottomland hardwood forest and most birds of conservation concern depend on bottomland hardwood forest. Past conservation planning has focused on habitat objectives with presumption that bird population goals would be met by habitat provision.

Date published: April 30, 2020
Status: Completed

New dataset available on stream and floodplain geometry to inform restoration decisions

Issue: The need for stream mapping

The physical shape of streams and floodplains can provide information about how water, sediment, and other matter moves through the landscape. Streams can have deep channels (tall streambanks) disconnected from the floodplain or wide shallow channels that easily spill over the banks into the floodplain during high flows. Mapping where...

Date published: April 30, 2020
Status: Active

Monitoring Birds in National Parks of the Gulf Coast Network

The Challenge: Avian monitoring within the Gulf Coast Network of the National Park Service is challenged to provide valid quantitative data on bird populations within park boundaries with limited financial input. Thus, citizen science (volunteer) bird monitoring has been proposed to achieve reliable estimates of bird populations and to assess the effects of habitat change and temporal dynamics...

Date published: April 30, 2020
Status: Active

Forest Structure Resulting from ‘Wildlife Forestry Silviculture’

Wildlife forestry is management of forest resources, within sites and across landscapes, to provide sustainable, desirable habitat conditions for all forest-dependent (silvicolous) fauna while concurrently yielding economically viable, quality timber products. In practice, however, management decisions associated with wildlife forestry often reflect a desire to provide suitable habitat for...

Date published: April 27, 2020
Status: Active

Microbial Source Tracking in the Lower Passaic River Basin Study Area, New Jersey

The USGS NJWSC is collaborating with the Passaic Valley Sewerage Commission (PVSC) on an Urban Waters Federal Partnership project in the Lower Passaic River basin to investigate the occurrence and potential sources of E. coli fecal indicator bacteria. 

Contacts: Pamela Reilly
Date published: April 27, 2020
Status: Active

Sediment and Stream Health - Pennsylvania

Sediment in streams, from land surface erosion in watersheds, is an important factor in determining the quality of Pennsylvania's surface waters and of downstream water bodies such as the Delaware Estuary and Chesapeake Bay. The USGS has a long-standing tradition of measuring suspended-sediment concentrations and estimating loads. Recent technological advances allow real-time estimates of...

Date published: April 16, 2020
Status: Active

Integrating colony counts with NABat acoustic data to reveal the true impacts of White-Nose Syndrome on northern long-eared bats

Bat Research

Research collaboration: Brian Reichert (FORT), Wayne Thogmartin (UMESC), Winifred Frick (Bat Conservation International), Tina Cheng (Bat Conservation International)

The northern long-eared bat...

Date published: April 16, 2020
Status: Active

Modeling the response of cave hibernating Myotis species to white-nose syndrome mitigation tactics

Bat Research

Research collaboration: Robin Russell (NWHC), Tonie Rocke (NWHC), Wayne Thogmartin (UMESC), Evan Grant (PWRC)

White-nose syndrome is a fungal disease devastating cave-hibernating bat species (Myotis spp.) in the eastern...

Date published: April 14, 2020
Status: Active

MD-DE-DC Groundwater Capabilities

Our region's water supply comes from streams and rivers, groundwater, and reservoirs. Areas not served by public-water supply rely on groundwater withdrawn from fractured rock aquifers in western Maryland, or surficial (water table) and confined aquifers in southern Maryland, Delaware, Washington, D.C., and the Eastern Shore.

Groundwater research...

Date published: April 13, 2020
Status: Active

Surface Water-Quality Monitoring Network (WQN)

Pennsylvania’s Statewide Surface Water-Quality Monitoring Network (WQN) currently consists of 124 sites that are sampled between 6 and 20 times a year. Chemical analysis includes nutrient, major ions, and selected metals. Pesticide sampling is conducted twice a year at 5 locations. Biological sampling for benthic macroinvertebrates is conducted annually at 80 sites.

The WQN was...

Contacts: Andrew G Reif
Date published: April 10, 2020
Status: Active

Regional Synthesis of Groundwater Quality in Domestic Supply Wells in Northeast and North Central Pennsylvania

USGS is synthesizing groundwater quality measurements in wells to characterize regional chemical characteristics of aquifers used for domestic supply in northeast and north central Pennsylvania.

Date published: April 10, 2020
Status: Active

Recoding of AMDTreat Phase 2: Integration of PHREEQ-N-AMDTreat water-quality prediction tools with recoded AMDTreat cost-analysis software

Newly developed PHREEQ-N-AMDTreat water-quality prediction tools indicate potential changes in pH, dissolved metals, and associated solute concentrations resulting from passive and active treatment of coal-mine drainage.

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Date published: July 7, 2020

Hydrologic simulations for Robinson Forest and Reclaimed Mineland Soils

Robinson Forest, in eastern Kentucky, is a research forest owned and operated by the University of Kentucky (UK) since the 1920s. The Forest is situated in a portion of eastern Kentucky that has undergone extensive resource extraction, including silvaculture and both underground and surface mining of coal. This site has been used to evaluate hydrologic process, stream permanence, a

Date published: July 1, 2020

Sea-floor sediment samples, seabed imagery, and CTD instrument data collected on Stellwagen Bank in May and June, 2015, U.S. Geological Survey Field Activity 2015-017-FA

This field activity is part of the effort to map geologic substrates of the Stellwagen Bank National Marine Sanctuary. The R/V Auk  visited 61 locations on Stellwagen Bank at which a customized Van Veen grab sampler equipped with a video camera and a CTD was deployed to collect sediment for grain-size analysis, seabed video imagery, and measurements of water column properties. 

Date published: July 1, 2020

Field blank and field replicate datasets for inorganic and organic compounds collected for the National Water Quality Network, water years 2013-17

The U.S. Geological Survey (USGS) National Water Quality Network - Rivers and Streams (NWQN) comprises 117 surface-water monitoring sites designed to track ambient water-quality conditions across the nation. This dataset includes field quality-control results (field blank and field replicate concentrations), along with the water-quality result of each associated surface-water sample

Date published: June 30, 2020

Passive seismic data collected along headwater stream corridors in Shenandoah National Park in 2016 - 2020

In July 2016, July 2019, and March 2020, 318 seismic recordings were acquired at locations within Shenandoah National Park, Virginia, using MOHO Tromino Model TEP-3C three-component seismometers to assess depth to bedrock using the HVSR method. This method requires a measurement of estimate of shear wave velocity, which depends on the regolith sediment composition and density, for

Date published: June 26, 2020

Tidal Daily Discharge and Quality Assurance Data Supporting an Assessment of Water Quality and Discharge in the Herring River, Wellfleet, Massachusetts, November 2015–September 2017

This data release provides data in support of an assessment of water quality and discharge in the Herring River at the Chequessett Neck Road dike in Wellfleet, Massachusetts, from November 2015 to September 2017. The assessment was a cooperative project among the U.S. Geological Survey, National Park Service, Cape Cod National Seashore, and the Friends of Herring River to characterize e

Date published: June 25, 2020

Continuous Monitoring Data From Herring River Wetlands, Cape Cod, Massachusetts, 2015 to January 2020

The Herring River estuary (Wellfleet, Cape Cod, Massachusetts) has been tidally restricted for over a century by a dike constructed near the mouth of the river. The U.S. Geological Survey collected continuous monitoring data (including water level, soil temperature, air temperature, and meteorological parameters). These datasets can help evaluate key ecosystem drivers.

Date published: June 25, 2020

Pine Creek Freshwater Mussel Qualitative Surveys: 1995 - 2009

Data are included for field surveys conducted for freshwater mussels within the Pine Creek watershed in the Mid-Atlantic region of the United States. Timed search (qualitative) surveys were conducted in ~200 meter sections of river between 1995 and 2009; The number of mussels of each species and associated search time were recorded for each survey section to determine a catch per unit ef

Date published: June 25, 2020

Neversink River freshwater mussel surveys: 2006-2009

Data are included for two types of field surveys conducted for freshwater mussels within the Neversink River in the Mid-Atlantic region of the United States. Timed search (qualitative) surveys were conducted in consecutive ~200 meter sections of river in 2006 and 2007; a subset of these sections were re-surveyed qualitatively in 2009. The number of mussels of each species and associated

Date published: June 23, 2020

North American Breeding Bird Survey Dataset 1966 - 2019

The 1966-2019 North American Breeding Bird Survey (BBS) dataset contains avian point count data for more than 700 North American bird taxa (species, races, and unidentified species groupings). These data are collected annually during the breeding season, primarily in June, along thousands of randomly established roadside survey routes in the United States and Canada. Routes are r

Date published: June 23, 2020

Mean annual no flow, climate and watershed properties for 540 non-perennial USGS gages in the contiguous U.S.

This dataset contains mean-annual metrics quantifying intermittent streamflow, climate, topography, land cover and geology for 540 USGS GAGES-2 watersheds experiencing non-perennial flow.

Date published: June 23, 2020

Annual low flow, climate and watershed properties for 325 USGS gages in and near the Delaware River Basin

This dataset contains annual metrics quantifying low streamflows, climate, topography, land cover and geology for 325 USGS GAGES-2 watersheds within the Delaware River Basin boundary or with watershed centroids within a 25-mile buffer of the Delaware River Basin boundary.

Date published: June 18, 2020

Modeled and observed trends at reference basins in the conterminous U.S. from October 1, 1983 through September 30, 2016

This data release contains trend results computed on the basis of modeled and observed daily streamflows at 502 reference gages across the conterminous U.S. from October 1, 1983 through September 30, 2016. Modeled daily streamflows were computed using the deterministic Precipitation Runoff Modeling System (PRMS), and five statistical techniques: Nearest-Neighbor Drainage Area Ratio %2

Filter Total Items: 16,167
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Year Published: 2021

Metal accumulation varies with life history, size, and development of larval amphibians

Amphibian larvae are commonly used as indicators of aquatic ecosystem health because they are susceptible to contaminants. However, there is limited information on how species characteristics and trophic position influence contaminant loads in larval amphibians. Importantly, there remains a need to understand whether grazers (frogs and...

Smalling, Kelly; Oja, Emily Bea; Cleveland, Danielle; Davenport, Jon D; Eagles-Smith, Collin; Campbell Grant, Evan H.; Kleeman, Patrick M.; Halstead, Brian J.; Stemp, Kenzi M; Tornabene, Brian J.; Bunnell, Zachary J; Hossack, Blake R.

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Year Published: 2021

Age and tectonic setting of the Quinebaug-Marlboro belt and implications for the history of Ganderian crustal fragments in southeastern New England, USA

Crustal fragments underlain by high-grade rocks represent a challenge to plate reconstructions, and integrated mapping, geochronology, and geochemistry enable the unravelling of the temporal and spatial history of exotic crustal blocks. The Quinebaug-Marlboro belt (QMB) is an enigmatic fragment on the trailing edge of the peri-Gondwanan Ganderian...

Walsh, Gregory J.; Aleinikoff, John N.; Ayuso, Robert A.; Wintsch, Robert P.

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Year Published: 2021

Decision analysis of barrier placement and targeted removal to control invasive carp in the Tennessee River Basin

Controlling range expansion of invasive carp (specifically Hypophthalmichthys spp.) on the Tennessee River is important to conserve the ecological and economic benefits provided by the river. We collaborated with State and Federal agencies (the stakeholder group) to develop a decision framework and decision support model to evaluate strategies to...

van der Burg, Max Post; Smith, David R.; Cupp, Aaron R.; Rogers, Mark W.; Chapman, Duane C.
Post van der Burg, M., Smith, D.R., Cupp, A.R., Rogers, M.W., and Chapman, D.C., 2021, Decision analysis of barrier placement and targeted removal to control invasive carp in the Tennessee River Basin: U.S. Geological Survey Open-File Report 2021–1068, 18 p., https://doi.org/10.3133/ofr20211068.

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Year Published: 2021

Processing coastal imagery with Agisoft Metashape Professional Edition, version 1.6—Structure from motion workflow documentation

IntroductionStructure from motion (SFM) has become an integral technique in coastal change assessment; the U.S. Geological Survey (USGS) used Agisoft Metashape Professional Edition photogrammetry software to develop a workflow that processes coastline aerial imagery collected in response to storms since Hurricane Florence in 2018. This report...

Over, Jin-Si R.; Ritchie, Andrew C.; Kranenburg, Christine J.; Brown, Jenna A.; Buscombe, Daniel D.; Noble, Tom; Sherwood, Christopher R.; Warrick, Jonathan A.; Wernette, Phillipe A.
Over, J.R., Ritchie, A.C., Kranenburg, C.J., Brown, J.A., Buscombe, D., Noble, T., Sherwood, C.R., Warrick, J.A., and Wernette, P.A., 2021, Processing coastal imagery with Agisoft Metashape Professional Edition, version 1.6—Structure from motion workflow documentation: U.S. Geological Survey Open-File Report 2021–1039, 46 p., https://doi.org/10.3133/ofr20211039.

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Year Published: 2021

Cohort strength and body size in co-occurring salmonids in a small stream network: Variation in space and time

Trout and salmon commonly coexist in stream networks. Exploring similarities and differences among species can help explain coexistence and invasive ability. Here, we describe spatial distribution, cohort strengths and size-at-age of three co-occurring species in a small stream network. Spatial distributions varied dramatically among species;...

Letcher, Benjamin; Nislow, Keith H.; O'Donnell, Matthew; Whiteley, Andrew R.; Coombs, Jason A.; Dubreuil, Todd L.

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Year Published: 2021

A review of sand detachment in modern deep marine environments: Analogues for upslope stratigraphic traps

Isolated, detached sands provide opportunities for large-volume stratigraphic traps in many deepwater petroleum systems. Here we provide a review of the different types of sandbody detachments based on published data from the modern-day seafloor and recent (generally Quaternary-present), shallow-buried strata. Detachment mechanisms can be...

Counts, John W.; Amy, Lawrence; Georgiopoulou, Aggeliki; Haughton, Peter

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Year Published: 2021

Estimating Piacenzian sea surface temperature using an alkenone-calibrated transfer function

Stationarity of environmental preferences is a primary assumption required for any paleoenvironmental reconstruction using fossil materials based upon calibration to modern organisms. Confidence in this assumption decreases the further back in time one goes, and the validity of the assumption that species temperature tolerances have not changed...

Dowsett, Harry J.; Robinson, Marci M.; Foley, Kevin M.
Dowsett, H.J., Robinson, M.M., and Foley, K.M., 2021, Estimating Piacenzian sea surface temperature using an alkenone-calibrated transfer function: U.S. Geological Survey Scientific Investigations Report 2021–5051, 17 p., https://doi.org/10.3133/sir20215051.

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Year Published: 2021

A decision-analytical framework for developing harvest regulations

The development of harvest regulations for fish or wildlife is a complex decision that needs to weigh multiple objectives, consider a set of alternative regulatory options, integrate scientific understanding about the population dynamics of the harvested species as well as the human response to regulations, account for uncertainty, and provide an...

Pope, Kevin L.; Powell, Larkin A.; Runge, Michael C.

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Year Published: 2021

Recent carbon storage and burial exceed historic rates in the San Juan Bay estuary peri-urban mangrove forests (Puerto Rico, United States)

Mangroves sequester significant quantities of organic carbon (C) because of high rates of burial in the soil and storage in biomass. We estimated mangrove forest C storage and accumulation rates in aboveground and belowground components among five sites along an urbanization gradient in the San Juan Bay Estuary, Puerto Rico. Sites included the...

Wigand, Cathleen; Eagle, Meagan; Branoff, Benjamin; Balogh, Stephen; Miller, Kenneth; Martin, Rose M.; Hanson, Alana; Oczkowski, Autumn; Huertas, Evelyn; Loffredo, Joseph; Watson, Elizabeth

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Year Published: 2021

Oxygen-controlled recirculating seepage meter reveals extent of nitrogen transformation in discharging coastal groundwater at the aquifer–estuary interface

Nutrient loads delivered to estuaries via submarine groundwater discharge (SGD) play an important role in the nitrogen (N) budget and eutrophication status. However, accurate and reliable quantification of the chemical flux across the final decimeters and centimeters at the sediment–estuary interface remains a challenge, because there is...

Brooks, Thomas W.; Kroeger, Kevin D.; Michael, Holly A.; York, Joanna K.

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Year Published: 2021

Use of dissolved oxygen monitoring to evaluate phosphorus loading in Connecticut streams, 2015–18

The Connecticut Department of Energy and Environmental Protection (CT DEEP) has developed an interim phosphorus reduction strategy to establish water-quality-based phosphorus limits in nontidal freshwaters for industrial and municipal water pollution control facilities. A recommendation in the strategy included the addition of diurnal dissolved...

Izbicki, Brittney; Morrison, Jonathan
Izbicki, B., and Morrison, J., 2021, Use of dissolved oxygen monitoring to evaluate phosphorus loading in Connecticut streams, 2015–18: U.S. Geological Survey Scientific Investigations Report 2021–5024, 25 p., https://doi.org/10.3133/sir20215024.

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Year Published: 2021

A survey of storm-induced seaward-transport features observed during the 2019 and 2020 hurricane seasons

Hurricanes are known to play a critical role in reshaping coastlines, but often only impacts on the open ocean coast are considered, ignoring seaward-directed forces and responses. The identification of subaerial evidence for storm-induced seaward transport is a critical step towards understanding its impact on coastal resiliency. The visual...

Over, Jin-Si R.; Brown, Jenna A.; Sherwood, Christopher R.; Hegermiller, Christie; Wernette, Phillipe Alan; Ritchie, Andrew C.; Warrick, Jonathan

Filter Total Items: 62
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.

USGS
April 26, 1982

Computes estimates of daily survival rate for nest visitation data.

Filter Total Items: 1,772
Aerial photo of Cold River in Maine
March 15, 2021

Aerial photo of Cold River in Maine

Photo Contest Winner | March 2021 | Where We Work
Aerial photo of Cold River in Maine

Person looking a streamgage surrounded by snow
March 5, 2021

Winter Groundwater Comparisons at Middle Dam, ME

The Region 1, April 2021 "People" Winner (by Jeremiah Pomerleau)

Precipitation measurement and sampling at a meteorological platform
March 3, 2021

Precipitation measurement and sampling at a meteorological platform

The photo shows a Belfort Weighing Bucket, Tipping Bucket,  Aerochem, Ott Pluvio , Hubbard Brook, and standard rain gage. Sleepers River Research Watershed, Danville, Vermont. 

The Belfort Weighing Bucket, Ott Pluvio and Tipping Bucket (discontinued) precipitation gauges collect 5 minute data. The standard gage is measured once a week manually. Hubbard Brook sampler

...
Recently retrieved frost tube
March 1, 2021

Frost tube

Photo of a recently retrieved frost tube during the Snow Depth and Snow Water Equivalent (SWE) measurement. Sleepers River Research Watershed, Danville, Vermont.

Soil frost measurements have been made at Sleepers River Research Watershed starting in 1983. Measurements were made by U.S. Army Cold Regions Research and Engineering Laboratory from 1983 to 1993, followed

...
Scouting Marconi Beach
February 28, 2021

Scouting Marconi Beach

Photo Contest Winner | February 2021 | People
Scouting Marconi Beach

North Fork Patapsco River
February 28, 2021

North Fork Patapsco River

Photo Contest Winner | February 2021 | Where We Work
North Fork Patapsco River

Hydrologic technician drills holes for a measurement
February 24, 2021

Hydrologic technician drills holes for a measurement

Hydrologic technician drills holes for a measurement at the U.S. Geological Survey station on the Sandy River near Madrid, Maine (station 01047200), in late February 2021. 

central eastern U.S. states with boundary outline
February 19, 2021

Chesapeake Bay Watershed boundary, USA

The Chesapeake Bay watershed, or draingage basin, encompasses six states - New York, Pennsylvania, West Virginia, Maryland, Delaware, Virginia, and the District of Columbia. A drainage basin is a giant system of creeks, streams, and rivers that all flow into a common outlet, which in this case is the Chesapeake Bay.

Segreganset River at North Dighton, Massachusetts
February 12, 2021

Segreganset River at North Dighton, Massachusetts

Segreganset River at North Dighton, Massachusetts, February 12, 2021.

Winter Groundwater Site Inspection
February 11, 2021

Winter Groundwater Site Inspection

Photo Contest Winner | March 2021 | Honorable Mention
423441072170701 MA-ORW63 Winter Groundwater Site Inspection

Filter Total Items: 287
Map of New England 7-day average streamflow conditions
September 21, 2020

Current information to help with understanding the extent and severity of the recent drought in New England.

Image shows USGS field crew conducting measurements on flooding streams
August 4, 2020

To learn more about USGS’s role in providing science to decision makers before, during, and after Hurricane Isaias, visit the USGS Hurricane Isaias page at https://www.usgs.gov/isaias

TNMCorps Mapping Challenge: City/Town Halls in ME, NH, VT
July 9, 2020

Over 80 points have been added since last week!  Keep up the good work!

A male Blue-winged Teal in flight
July 7, 2020

Birds bring joy merely by their presence, from their bold colors and majestic songs to their grace as they glide through the sky. Birds contribute more than beauty to the environment and society. Many plants depend on hummingbirds and other species to pollinate them. Hawks and owls prey on rodents and other pests. Fruit- and grain-eating birds help spread plants’ seeds.

TNMCorps Mapping Challenge: City/Town Halls in ME, NH, VT
July 2, 2020

This challenge is seeing some progress with the northwestern corner of VT filling in!

Gage at LaVale, MD
July 1, 2020

There's a lot of talent at the Maryland, Delaware, Washington, DC Water Science Center!

We’ve created a series of websites, thematically named to characterize our work as our “Capabilities”, working interdependently with a diverse array of cooperative partners, the scientists, technicians, and support staff work tirelessly to produce the high-quality output for which the USGS is world renown.

TNMCorps Mapping Challenge: City/Town Halls in ME, NH, VT
June 25, 2020

Approximately 80 edits have come in since this challenge was launched! This includes ~70 new points! Nice work!

Dead Run, a typical urban creek
June 24, 2020

Dirt, sand, and other particulate material on parking lots and streets is washing off into urban streams, reports a new study by the U.S. Geological Survey Regional Stream Quality Assessment. The study used novel particle tracers to determine that particles washed from pavement made up almost half of the streambed sediment in parts of Dead Run, an urban stream in the Baltimore area.

TNMCorps Mapping Challenge: City/Town Halls in ME, NH, VT NEW
June 19, 2020

TNMCorps Mapping Challenges head to New England with a new challenge for city/town halls in Maine, New Hampshire, and Vermont!

Photo of drone with ground-penetrating radar system flying close over river surface
June 5, 2020

Melinda Chapman, recently appointed Director of the Pennsylvania Water Science Center (previously Assistant Chief of the USGS Office of Groundwater), introduces the first issue of the Pennsylvania Waters newsletter, available via http://www.usgs.gov/pennsylvania-waters-newsletters.

Filter Total Items: 594