Unified Interior Regions

Region 1: North Atlantic-Appalachian

January Photo Contest

January Photo Contest

Check out the winning photographs in the January 2020 Photo Contest! Categories include People, USGS at Work, Where We Work, and Honorable Mention

See the photos!

Regions L2 Landing Page Tabs

Filter Total Items: 758
Girl Drinking Water
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...

Filter Total Items: 15,337
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Year Published: 2017

Estimates of immediate effects on world markets of a hypothetical disruption to Russia’s supply of six mineral commodities

The potential immediate effects of a hypothetical shock to Russia’s supply of selected mineral commodities on the world market and on individual countries were determined and monetized (in 2014 U.S. dollars). The mineral commodities considered were aluminum (refined primary), nickel (refined primary), palladium (refined) and platinum (refined),...

Safirova, Elena; Barry, James J.; Hastorun, Sinan; Matos, Grecia R.; Perez, Alberto Alexander; Bedinger, George M.; Bray, E. Lee; Jasinski, Stephen M.; Kuck, Peter H.; Loferski, Patricia J.
Safirova, Elena, Barry, J.J., Hastorun, Sinan, Matos, G.R., and Perez, A.A., with contributions from Bedinger, G.M., Bray, E.L., Jasinski, S.M., Kuck, P.H., and Loferski, P.J., 2017, Estimates of immediate effects on world markets of a hypothetical disruption to Russia’s supply of six mineral commodities: U.S. Geological Survey Open-File Report 2017–1023, 22 p., https://doi.org/10.3133/ofr20171023.

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Year Published: 2017

Estimating evaporative fraction from readily obtainable variables in mangrove forests of the Everglades, U.S.A.

A remote-sensing-based model to estimate evaporative fraction (EF) – the ratio of latent heat (LE; energy equivalent of evapotranspiration –ET–) to total available energy – from easily obtainable remotely-sensed and meteorological parameters is presented. This research specifically addresses the shortcomings of existing ET retrieval methods such...

Yagci, Ali Levent; Santanello, Joseph A.; Jones, John W.; Barr, Jordan G.
Ali Levent Yagci, Joseph A. Santanello, John W. Jones & Jordan Barr (2017) Estimating evaporative fraction from readily obtainable variables in mangrove forests of the Everglades, U.S.A., International Journal of Remote Sensing, 38:14, 3981-4007, DOI: 10.1080/01431161.2017.1312033

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Year Published: 2017

Comparative cophylogenetics of Australian phabine pigeons and doves (Aves: Columbidae) and their feather lice (Insecta: Phthiraptera)

Host–parasite coevolutionary histories can differ among multiple groups of parasites associated with the same group of hosts. For example, parasitic wing and body lice (Insecta: Phthiraptera) of New World pigeons and doves (Aves: Columbidae) differ in their cophylogenetic patterns, with body lice exhibiting higher phylogenetic congruence with...

Sweet, Andrew D.; Chesser, R. Terry; Johnson, Kevin P.
Sweet, A. D., Chesser, R. T., and Johnson, K. P., 2017, Comparative cophylogenetics of Australian phabine pigeons and doves (Aves: Columbidae) and their feather lice (Insecta: Phthiraptera): International Journal for Parasitology, v. 47, no. 6, p. 347-356.

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Year Published: 2017

Effects on circulating steroid hormones and gene expression along the hypothalamus–pituitary–gonadal axis in adult Japanese quail exposed to 17β-trenbolone across multiple generations

We investigated the effects of the androgenic growth promoter 17β-trenbolone (17βTB) on adult Japanese quail (Coturnix japonica) exposed across three generations. The F0 generation was exposed after sexual maturity to 0, 1, 5, 10, 20, and 40 ppm through feed. The F1 generation was exposed in ovo by maternal transfer and through feed at the same...

Karouna-Renier, Natalie K.; Chen, Yu; Henry, Paula F. P.; Maddox, Catherine M.; Sprague, Dan
Karouna-Renier, N. K., Chen, Y., Henry, P. F. P., and Sprague, D. T., 2017, Effects on circulating steroid hormones and gene expression along the hypothalamus-pituitary-gonadal axis in adult Japanese quail exposed to 17β-trenbolone across multiple generations: Toxicological Sciences, v. 157, no. 1, p. 62-73.

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Year Published: 2017

Using decision analysis to support proactive management of emerging infectious wildlife diseases

Despite calls for improved responses to emerging infectious diseases in wildlife, management is seldom considered until a disease has been detected in affected populations. Reactive approaches may limit the potential for control and increase total response costs. An alternative, proactive management framework can identify immediate actions that...

Grant, Evan H. Campbell; Muths, Erin L.; Katz, Rachel A.; Canessa, Stefano; Adams, M.J.; Ballard, Jennifer R.; Berger, Lee; Briggs, Cheryl J.; Coleman, Jeremy; Gray, Matthew J.; Harris, M. Camille; Harris, Reid N.; Hossack, Blake R.; Huyvaert, Kathryn P.; Kolby, Jonathan E.; Lips, Karen R.; Lovich, Robert E.; McCallum, Hamish I.; Mendelson, Joseph R.; Nanjappa, Priya; Olson, Deanna H.; Powers, Jenny G.; Richgels, Katherine L. D.; Russell, Robin E.; Schmidt, Benedikt R.; Spitzen-van der Sluijs, Annemarieke; Watry, Mary Kay; Woodhams, Douglas C.; White, C. LeAnn
Grant, E. H. C., Muths, E., Katz, R. A., Canessa, S., Adams, M. J., Ballard, J. R., Berger, L., Briggs, C. J., Coleman, J. T. H., Gray, M. J., Harris, M C., Harris, R. N., Hossack, B., Huyvaert, K. P., Kolby, J., Lips, K. R., Lovich, R. E., McCallum, H. I., Mendelson, J. R., Nanjappa, P., Olson, D. H., Powers, J. G., Richgels, K. L. D., Russell, R. E., Schmidt, B. R., Spitzen-van der Sluijs, A., Watry, M. K., Woodhams, D. C., and White, C. L., 2017, Using decision analysis to support proactive management of emerging infectious wildlife diseases: Frontiers in Ecology and the Environment, v. 15, no. 4, p. 214-221.

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Year Published: 2017

Estimating thermal performance curves from repeated field observations

Estimating thermal performance of organisms is critical for understanding population distributions and dynamics and predicting responses to climate change. Typically, performance curves are estimated using laboratory studies to isolate temperature effects, but other abiotic and biotic factors influence temperature-performance relationships in...

Childress, Evan; Letcher, Benjamin H.
Childress, E. S., & Letcher, B. H. (2017). Estimating thermal performance curves from repeated field observations. Ecology Ecological Society of America, 98(5), 1377–1387. https://doi.org/10.1002/ecy.1801

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Year Published: 2017

Geologic controls on cave development in Burnsville Cove, Bath and Highland Counties, Virginia

Burnsville Cove in Bath and Highland Counties (Virginia, USA) is a karst region in the Valley and Ridge Province of the Appalachian Mountains. The region contains many caves in Silurian to Devonian limestone, and is well suited for examining geologic controls on cave location and cave passage morphology. In Burnsville Cove, many caves are located...

Swezey, Christopher S.; Haynes, John T.; Lucas, Philip C.; Lambert, Richard A.
Swezey, C.S., Haynes, J.T., Lucas, P.C., and Lambert, R.A., 2017, Geologic controls on cave development in Burnsville Cove, Bath and Highland Counties, Virginia, in Bailey, C.M., and Jaye, S., eds., From the Blue Ridge to the Beach: Geological Field Excursions across Virginia: Geological Society of America Field Guide 47, p. 89–123.

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Year Published: 2017

Evaluation of radon occurrence in groundwater from 16 geologic units in Pennsylvania, 1986–2015, with application to potential radon exposure from groundwater and indoor air

Results from 1,041 groundwater samples collected during 1986‒2015 from 16 geologic units in Pennsylvania, associated with 25 or more groundwater samples with concentrations of radon-222, were evaluated in an effort to identify variations in radon-222 activities or concentrations and to classify potential radon-222 exposure from groundwater and...

Gross, Eliza L.
Gross, E.L., 2017, Evaluation of radon occurrence in groundwater from 16 geologic units in Pennsylvania, 1986–2015, with application to potential radon exposure from groundwater and indoor air: U.S. Geological Survey Scientific Investigations Report 2017–5018, 24 p., https://doi.org/10.3133/sir20175018.

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Year Published: 2017

Magnitude of flood flows for selected annual exceedance probabilities for streams in Massachusetts

The U.S. Geological Survey, in cooperation with the Massachusetts Department of Transportation, determined the magnitude of flood flows at selected annual exceedance prob­abilities (AEPs) at streamgages in Massachusetts and from these data developed equations for estimating flood flows at ungaged locations in the State. Flood magnitudes were...

Zarriello, Phillip J.
Zarriello, P.J., 2017, Magnitude of flood flows at selected annual exceedance probabilities for streams in Massachusetts: U.S. Geological Survey Scientific Investigations Report 2016–5156, 54 p., https://doi.org/10.3133/sir20165156.

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Year Published: 2017

Evaluation of the streamgage network for estimating streamflow statistics at ungaged sites in Pennsylvania and the Susquehanna River Basin in Pennsylvania and New York

The current (2015) streamgage network in Pennsylvania and the Susquehanna River Basin in Pennsylvania and New York was evaluated in order to design a network that would meet the hydrologic needs of many partners and serve a variety of purposes and interests, including estimation of streamflow statistics at ungaged sites. This study was done by the...

Sloto, Ronald A.; Stuckey, Marla H.; Hoffman, Scott A.
Sloto, R.A., Stuckey, M.H., and Hoffman, S.A., 2017, Evaluation of the streamgage network for estimating streamflow statistics at ungaged sites in Pennsylvania and the Susquehanna River Basin in Pennsylvania and New York: U.S. Geological Survey Scientific Investigations Report 2016–5149, 102 p., https://doi.org/10.3133/sir20165149.

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Year Published: 2017

Unconventional oil and gas spills: Materials, volumes, and risks to surface waters in four states of the U.S.

Extraction of oil and gas from unconventional sources, such as shale, has dramatically increased over the past ten years, raising the potential for spills or releases of chemicals, waste materials, and oil and gas. We analyzed spill data associated with unconventional wells from Colorado, New Mexico, North Dakota and Pennsylvania from 2005 to 2014...

Maloney, Kelly O.; Baruch-Mordo, Sharon; Patterson, Lauren A.; Nicot, Jean-Philippe; Entrekin, Sally; Fargione, Joe E.; Kiesecker, Joseph M.; Konschnik, Kate E.; Ryan, Joseph N.; Trainor, Anne M.; Saiers, James E.; Wiseman, Hannah J.
Maloney, K. O., S. Baruch-Mordo, L. A. Patterson, J.-P. Nicot, S. A. Entrekin, J. E. Fargione, J. M. Kiesecker, K. E. Konschnik, J. N. Ryan, A. M. Trainor, J. E. Saiers, and H. J. Wiseman. 2017. Unconventional oil and gas spills: Materials, volumes, and risks to surface waters in four states of the U.S. Science of The Total Environment 581–582:369-377.

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Year Published: 2017

Unconventional oil and gas spills: Risks, mitigation priorities, and state reporting requirements

Rapid growth in unconventional oil and gas (UOG) has produced jobs, revenue, and energy, but also concerns over spills and environmental risks. We assessed spill data from 2005 to 2014 at 31 481 UOG wells in Colorado, New Mexico, North Dakota, and Pennsylvania. We found 2–16% of wells reported a spill each year. Median spill volumes ranged from 0....

Patterson, Lauren A.; Konschnik, Katherine E.; Wiseman, Hannah; Fargione, Joseph; Maloney, Kelly O.; Kiesecker, Joseph M.; Nicot, Jean-Philippe; Baruch-Mordo, Sharon; Entrekin, Sally; Trainor, Anne; Saiers, James
Patterson, L. A., K. E. Konschnik, H. Wiseman, J. Fargione, K. O. Maloney, J. Kiesecker, J.-P. Nicot, S. Baruch-Mordo, S. Entrekin, and A. Trainor. 2017. Unconventional Oil and Gas Spills: Risks, Mitigation Priorities, and State Reporting Requirements. Environmental Science & Technology 51:2563-2573.

Filter Total Items: 1,025
Concord mine
November 8, 2012

Concord Heavy-Mineral Sands Mine

The Concord heavy-mineral-sands mine of Iluka Resources in south-central Virginia. The mine excavates sand-silt deposits that contain about 4 percent heavy minerals, which were deposited along a shoreline that existed here between 3.5 and 3.0 million years ago. These

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man standing in shallow waves on beach operating adcp
November 6, 2012

Utilizing ADCP on Long Island after Hurricane Sandy

USGS hydrologist operating Acoustic Doppler Current Profiler (ADCP) on Long Island shore after Hurricane Sandy.

water channel through sand barrier on Long Island
November 5, 2012

Fire Island Island Breach - Hurricane Sandy

Oblique aerial photograph Fire Island, New York. The
view is looking northwest across Fire Island towards Great South Bay. This
location is within Fire Island National Seashore near Old Inlet—a very narrow
portion of the island that has experienced breaching in previous large storms.
The island breached during Hurricane Sandy, creating a new inlet.

Barrier-island breach created by Hurricane Sandy at Fire Island National Seashore, N.Y.
November 5, 2012

Barrier-island breach at Fire Island National Seashore

Barrier-island breach created by Hurricane Sandy at Fire Island National Seashore, N.Y.

Installing storm surge sensors before Hurricane Sandy
October 28, 2012

USGS scientists, Michael Noll and Amy Simonson, installing storm surge sensors before Hurricane Sandy

USGS scientists, Michael Noll and Amy Simonson, installing storm surge sensors before Hurricane Sandy

green and orange speckled fish in man's hand in boat on water
October 18, 2012

Brook Trout from an Adirondack lake

Brook Trout from an Adirondack lake

Panoramic view of the Blue Ridge (Virginia, North Carolina and Tennessee)
October 3, 2012

Blue Ridge of Virginia, North Carolina and Tennessee

Panoramic view (~270 degrees) looking across the Blue Ridge of Virginia, North Carolina and Tennessee (from left to right).  The Valley and Ridge is in the distance (gap between mountains). 

The Piedmont and Blue Ridge provinces extend from southeastern New York to Alabama and include parts of eleven states in the Eastern U.S. and part of Washington, D.C. Blue Ridge

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Clove Lake, Long Island water flowing under viaduct
October 1, 2012

South Side of Clove Lake at Victory Blvd., Long Island, NY

South Side of Clove Lake at Victory Blvd., Long Island, NY

Image: Massachusetts Seafloor
August 25, 2012

Massachusetts Seafloor

This photograph is of the seafloor off the Massachusetts coast and shows a sea anemone amongst gravel and cobbles. This photograph was collected as part of USGS research in collaboration with the Massachusetts Office of Coastal Zone Management to support development of the Massachusetts Ocean Management Plan and management of the state's waters.

Image: Massachusetts Seafloor
August 23, 2012

Massachusetts Seafloor

This photograph is of the seafloor off the Massachusetts coast and shows a lobster, sponges and brachiopods on cobbles and ledge covered with seaweed, bubblegum algae and red filamentous algae. This photograph was collected as part of USGS research in collaboration with the Massachusetts Office of Coastal Zone Management to support development of the Massachusetts

...
Image: Massachusetts Seafloor
August 22, 2012

Massachusetts Seafloor

This photograph is of the seafloor off the Massachusetts coast and shows sand dollars and shell fragments on a sandy seabed. This photograph was collected as part of USGS research in collaboration with the Massachusetts Office of Coastal Zone Management to support development of the Massachusetts Ocean Management Plan and management of the state's waters.