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

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

See Photos

Regions L2 Landing Page Tabs

Filter Total Items: 1,148
Date published: July 22, 2007

Virginia Coastal Plain GIS Project

The USGS, with cooperation from the Virginia Department of Environmental Quality and the Hampton Roads Planning District Commission, is involved in several related and on-going regional projects directed at better characterization of this important resource. The large amount of information needed for these projects requires the development and integration of a Geographic Information System (...

Date published: June 22, 2007

River Input Monitoring

The objective of this study is to provide concentrations and estimates of loads and trends of suspended solids, nitrogen, phosphorus, and other selected constituents at the James, Rappahannock, Appomattox, Pamunkey, and Mattaponi Rivers.

Contacts: Douglas L Moyer
Date published: September 30, 2006

The Chesapeke Bay Impact Crater

The International Continental Scientific Drilling Program and the U.S. Geological Survey drilled a 1,766-m-deep test hole near the center of the Chesapeake Bay impact structure in 2005 and 2006. Learn more here:

Contacts:
Date published: September 30, 2006

USGS-Chesapeake Bay Program Watershed Model

The USGS is collaborating with the Chesapeake Bay Program (CBP) to incorporate the USGS Potomac Watershed and Chesapeake Bay Virginia Watershed models into Phase 5 of the Chesapeake Bay Watershed Model (CBWM)

Date published: February 22, 2006

Frederick County Carbonate Aquifer Appraisal

The objective of this study is to better characterize the carbonate aquifer system in the Northern Shenandoah Valley and provide relevant hydrogeologic information that can be used to guide the development and management of this important water resource.

Date published: October 1, 2003
Status: Completed

Bacteriological quality of groundwater used for household supply

In fractured bedrock aquifers used for domestic supply conditions can exist where contaminants such as bacteria are not filtered out by the soil. Once in the fracture system, little additional filtration takes place.

The results of a synotic sampling of domestic wells in the Lower Susquehanna River basin, Pennsylvania and Maryland, showed that bacteria concentrations were higher in...

Date published: April 18, 2003
Status: Completed

National Highway Runoff Water-Quality Data and Methodology Synthesis (NDAMS)

Knowledge of the characteristics of highway runoff (concentrations and loads of constituents and the physical and chemical processes that produce this runoff) is important for decisionmakers, planners, and highway engineers to assess and mitigate possible adverse impacts of highway runoff on the Nation's receiving waters. This project was done by the U.S. Geological Survey (USGS) in...

Contacts: Gregory Granato
Filter Total Items: 15,993
Publication Thumbnail
Year Published: 2017

Acquisition of Borrelia burgdorferi infection by larval Ixodes scapularis (Acari: Ixodidae) associated with engorgement measures

Measuring rates of acquisition of the Lyme disease pathogen, Borrelia burgdorferi sensu lato Johnson, Schmid, Hyde, Steigerwalt & Brenner, by the larval stage of Ixodes scapularis Say is a useful tool for xenodiagnoses of B. burgdorferi in vertebrate hosts. In the nymphal and adult stages of I. scapularis,...

Couret, Janelle; Dyer, M.C.; Mather, T.N.; Han, S.; Tsao, J.I.; LeBrun, R.A.; Ginsberg, Howard S.
Couret, J., Dyer, M. C., Mather, T. N., Han, S., Tsao, J. I., Lebrun, R. A., and Ginsberg, H. S., 2017, Acquisition of Borrelia burgdorferi infection by larval Ixodes scapularis (Acari: Ixodidae) associated with engorgement measures : Journal of Medical Entomology, v. 54, no. 4, p. 1055-1060.

Publication Thumbnail
Year Published: 2017

Cambrian origin of the CYP27C1-mediated vitamin A1-to-A2 switch, a key mechanism of vertebrate sensory plasticity

The spectral composition of ambient light varies across both space and time. Many species of jawed vertebrates adapt to this variation by tuning the sensitivity of their photoreceptors via the expression of CYP27C1, an enzyme that converts vitamin A1 into vitamin A2, thereby shifting the ratio of vitamin A1-based rhodopsin to red-shifted...

Morshedian, Ala; Toomery, Matthew B.; Pollock, Gabriel E.; Frederiksen, Rikard; Enright, Jennifer; McCormick, Stephen D.; Cornwall, M. Carter; Fain, Gordon L.; Corbo, Joseph C.

Publication Thumbnail
Year Published: 2017

Fifty-eighth supplement to the American Ornithologists' Union: Check-list of North American Birds

This is the 17th supplement since publication of the 7th edition of the Check-list of North American Birds (American Ornithologists' Union [AOU] 1998). It summarizes decisions made between April 15, 2016, and April 15, 2017, by the AOS's Committee on Classification and Nomenclature—North and Middle America. The Committee has continued to operate...

Chesser, Terry; Burns, Kevin J; Cicero, Carla; Dunn, Jon L.; Kratter, Andrew W.; Lovette, Irby J.; Rasmussen, Pamela C.; Remsen, J.V.; Rising, James D.; Stotz, Douglas F.; Winker, Kevin
Chesser, R. T., Burns, K. J., Cicero, C., Dunn, J. L., Kratter, A. W., Lovette, I. J., Rasmussen, P. C., Remsen, J. V. Jr., Rising, J. D., Stotz, D. F., and Winker, K., 2017, Fifty-eighth supplement to the American Ornithologists' Union: Check-list of North American Birds: Auk, v. 134, no. 3, p. 751-773.

Publication Thumbnail
Year Published: 2017

Borates, 2016

No abstract available.

Crangle, Robert

Publication Thumbnail
Year Published: 2017

Gypsum, 2016

No abstract available.

Crangle, Robert

Publication Thumbnail
Year Published: 2017

High-frequency dissolved organic carbon and nitrate measurements reveal differences in storm hysteresis and loading in relation to land cover and seasonality

High-frequency dissolved organic carbon and nitrate measurements reveal differences in storm hysteresis and loading in relation to land cover and seasonality

Vaughan, Matthew C.H.; Bowden, William B.; Shanley, James B.; Vermilyea, Andrew W.; Sleeper, Ryan; Gold, Arthur J.; Pradhanang, Soni M.; Inamdar, Shreeram P.; Levia, Delphis F.; Andres, A. Scott; Birgand, François; Schroth, Andrew W.
Vaughan, M. C. H., et al. (2017), High-frequency dissolved organic carbon and nitrate measurements reveal differences in storm hysteresis and loading in relation to land cover and seasonality, Water Resour. Res., 53, 5345–5363, doi:10.1002/2017WR020491.

Publication Thumbnail
Year Published: 2017

Integration of vegetation community spatial data into a prescribed fire planning process at Shenandoah National Park, Virginia (USA)

Many eastern forest communities depend on fire for regeneration or are enhanced by fire as a restoration practice. However, the use of prescribed fire in the mesic forested environments and the densely populated regions of the eastern United States has been limited. The objective of our research was to develop a science-based approach to...

Young, John A.; Mahan, Carolyn G.; Forder, Melissa

Publication Thumbnail
Year Published: 2017

Landform features and seasonal precipitation predict shallow groundwater influence on temperature in headwater streams

Headwater stream responses to climate change will depend in part on groundwater‐surface water exchanges. We used linear modeling techniques to partition likely effects of shallow groundwater seepage and air temperature on stream temperatures for 79 sites in nine focal watersheds using hourly air and water temperature measurements collected during...

Johnson, Zachary C.; Snyder, Craig D.; Hitt, Nathaniel P.
Johnson, Z.C., C.D. Snyder, and N.P. Hitt. Landform features and seasonal precipitation predict shallow groundwater influence on temperature in headwater streams. Water Resources Research

Publication Thumbnail
Year Published: 2017

Mapping informal small-scale mining features in a data-sparse tropical environment with a small UAS

This study evaluates the use of a small unmanned aerial system (UAS) to collect imagery over artisanal mining sites in West Africa. The purpose of this study is to consider how very high-resolution imagery and digital surface models (DSMs) derived from structure-from-motion (SfM) photogrammetric techniques from a small UAS can fill the gap in...

Chirico, Peter G.; Dewitt, Jessica D.

Publication Thumbnail
Year Published: 2017

Novel, continuous monitoring of fine‐scale movement using fixed‐position radiotelemetry arrays and random forest location fingerprinting

Radio‐tag signals from fixed‐position antennas are most often used to indicate presence or absence of individuals, or to estimate individual activity levels from signal strength variation within an antenna's detection zone. The potential of such systems to provide more precise information on tag location and movement has not been explored in great...

Harbicht, Andrew B.; Castro-Santos, Theodore R.; Ardren, William R.; Gorsky, Dimitry; Fraser, Dylan
Harbicht, A. B., Castro-Santos, T., Ardren, W. R., Gorsky, D. and Fraser, D. J. (2017), Novel, continuous monitoring of fine-scale movement using fixed-position radiotelemetry arrays and random forest location fingerprinting. Methods Ecol Evol. 8:850-859.

Publication Thumbnail
Year Published: 2017

Physical response of a back-barrier estuary to a post-tropical cyclone

This paper presents a modeling investigation of the hydrodynamic and sediment transport response of Chincoteague Bay (VA/MD, USA) to Hurricane Sandy using the Coupled Ocean-Atmosphere-Wave-Sediment-Transport (COAWST) modeling system. Several simulation scenarios with different combinations of remote and local forces were conducted to identify the...

Beudin, Alexis; Ganju, Neil Kamal; Defne, Zafer; Aretxabaleta, Alfredo
Beudin, A., Ganju, N. K., Defne, Z. and Aretxabaleta, A. L. (), Physical response of a back-barrier estuary to a post-tropical cyclone. J. Geophys. Res. Oceans. Accepted Author Manuscript.

Publication Thumbnail
Year Published: 2017

Two-step adaptive management for choosing between two management actions

Adaptive management is widely advocated to improve environmental management. Derivations of optimal strategies for adaptive management, however, tend to be case specific and time consuming. In contrast, managers might seek relatively simple guidance, such as insight into when a new potential management action should be considered, and how much...

Moore, Alana L.; Walker, Leila; Runge, Michael C.; McDonald-Madden, Eve; McCarthy, Michael A
Moore, A. L., Walker, L., Runge, M. C., McDonald-Madden, E., and McCarthy, M. A., 2017, Two-step adaptive management for choosing between two management actions: Ecological Applications, v. 27, no. 4, p. 1210-1222.

Filter Total Items: 1,718
Groundwater staining in Pennsylvanian sandstone. A rock hammer is used as size reference.
December 31, 2015

Groundwater Staining in Pennsylvanian Sandstone, West Virginia

Fractures in bedrock transmit groundwater, and geologic mapping is conducted to provide the geologic framework for groundwater resource studies. This photo shows iron-oxide staining (Leisegang banding) from past groundwater flow along fractures formed prior to the rock having been blasted open during road construction. 

This photo was taken along US Hwy 48 near

...
USGS staff diving in Chincoteague Bay, MD
December 31, 2015

Measuring seagrass!

Measuring seagrass biomass in Chincoteague Bay, Maryland to constrain numerical models.

Map of the south Atlantic coast
December 31, 2015

South Atlantic Coast

Vector Shorelines and Associated Shoreline Change Data for the Southeast Atlantic Coast

orange geophysical surveying equipment on city street and in truck
December 31, 2015

Geophysical Surveying

Geophysical Surveying on city street in New York

Photograph of Laura Brothers in front of computer equipment.
December 31, 2015

Lights! Camera! Action!

Dr. Laura Brothers preparing to collect visual imagery aboard the RV Rafael as part of the launch of the MiniSEABOSS while doing work off of Nantucket. The MiniSEABOSS collects samples, photos and video of the seafloor.

A man stands near a lab counter holding a syringe which he is using to dispense a sample onto a circle of paper.
December 31, 2015

Measuring index properties on sediment samples

Junbong Jang of the USGS Woods Hole Coastal and Marine Science Center measures index properties on sediment collected during the Indian Government’s National Gas Hydrates Program (NGHP-02) drilling expedition offshore from eastern India in the summer of 2015.

Sandy Brosnahan transporting a weather buoy into the Woods Hole Coastal and Marine Science Center’s operational facility in prep
December 31, 2015

Special Delivery

Sandy Brosnahan transporting a weather buoy into the Woods Hole Coastal and Marine Science Center’s operational facility in preparation for deployment. This buoy was one of 6 deployed to measure wind speed, direction, pressure, and temperature off the coast of Fire Island, NY. Paired with each weather buoy was a subsurface tripod measuring surface waves, pressure, current

...
flood tidal shoal
December 31, 2015

Flood tidal shoal

Flood tidal shoal at Barnegat Inlet, New Jersey (courtesy USGS EROS NAIP orthophotography)

marsh, rocky coast, barrier beach, coastal bluff
December 31, 2015

Sea-level rise effects vary in geomorphology and ecology

The effects of sea-level rise will vary by differences in the geomorphology and ecology of the landscape.  Images show marsh (top left) rocky coast (top right), barrier beach (bottom left), and coastal bluff (bottom right)

 Scanning electron microscope image of gas hydrate crystals in a sediment sample.
December 31, 2015

Gas Hydrate Crystals

 Scanning electron microscope image of gas hydrate crystals in a sediment sample. The scale is 50 micrometers (µm) or approximately 0.002 inches