Due to a lapse in appropriations, the majority of USGS websites may not be up to date and may not reflect current conditions. Websites displaying real-time data, such as Earthquake and Water and information needed for public health and safety will be updated with limited support. Additionally, USGS will not be able to respond to inquiries until appropriations are enacted.  For more information, please see www.doi.gov/shutdown

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Northeast

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One of the major strengths of the Northeast Area is the enthusiasm and commitment of our scientists to produce the type of high quality science that the USGS is known for. Working together with our partners across the nation, we have the ability to provide complete, integrated and holistic environmental information that will produce the best results that we can achieve.

Filter Total Items: 143
Spatial Capture-Recapture by Royle,Chandler, Sollmann, & Gardner
Date Published: December 19, 2016
Status: Active

Spatial Capture-Recapture Models to Estimate Abundance and Density of Animal Populations

The Challenge: For decades, capture-recapture methods have been the cornerstone of ecological statistics as applied to population biology.  While capture-recapture has become the standard sampling and analytical framework for the study of population processes (Williams, Nichols & Conroy 2002) it has advanced independent of and remained unconnected to the spatial structure of the population...

Weddell seal pup and mom
Date Published: December 19, 2016
Status: Active

Hierarchical Models for Estimation of Population Parameters

The Challenge: Much of wildlife research consists of the description of variation in data. Some of the variation results from spatial and temporal change in populations, while some results from biologically irrelevant sampling variation induced by the process of data collection. Distinguishing relevant from irrelevant variation is the first task of statistical analysis, but the job does not...

Dwarf crocodiles, Osteolaemus tetraspis
Date Published: December 19, 2016
Status: Active

Development of Statistical Methods for Biological Applications

The Challenge: Wildlife science and management are guided by data, and it is unquestionably the case that the greatest success occurs when good data are analyzed by good statistical methods.

Black-tailed prairie dog mortality
Date Published: December 19, 2016
Status: Active

Characterization of Avian Hazards Following Chlorophacinone Use for Prairie Dog Control

The Challenge: Black-tailed prairie dogs are considered a keystone species for the prairie habitat. Many avian species are associated with black-tailed prairie dogs (Cynomys ludovicianus) in winter.  Raptors feed on prairie dogs and non-raptor avian species forage within prairie dog colonies.  However prairie dogs are also considered agricultural pests. The first generation anticoagulant...

USGS-PWRC population modeling software web-page
Date Published: December 14, 2016
Status: Active

Development of Computer Software for the Analysis of Animal Population Parameters

Biologists at USGS Patuxent, as well as cooperating agencies are constantly looking for new ways of answering questions about the status of animal populations and how animal populations change over time. To address these questions, data are collected on captures and or sightings of animals which can be used to estimate parameters which affect the population using legacy software. Over time,...

Contacts: James Hines
Shenandoah Salamander (Plethodon shenandoah)
Date Published: December 9, 2016
Status: Active

Managing the Extinction Risk of the Shenandoah Salamander

The Challenge:  In many National Parks organisms at high elevation are severely threatened and may be sensitive to changes in temperature and moisture gradients in the Appalachians, which may result in species extirpation in high elevation habitats. Many species are specifically adapted to the unusual conditions typical of high elevation sites; risks of extirpation increase as conditions ...

North American Amphibian Monitoring Program (NAAMP)
Date Published: December 8, 2016
Status: Completed

North American Amphibian Monitoring Program

The North American Amphibian Monitoring Program (NAAMP) was a collaborative citizen science effort between the US Geological Survey (USGS) and 26 partners (state agencies, universities, and nonprofit organizations) for monitoring calling amphibian populations over much of the eastern and central United States.  Initiated in 1997, in response to needs set forth by the Declining Amphibian...

Measuring water velocities during historic low-flows
Date Published: December 5, 2016
Status: Active

Quantifying Effects of Flow Variability on Riverine Biota

The Challenge: Ecologists have shown that many ecological processes in rivers, including organism growth, reproduction, survival and dispersal, are attuned to natural patterns of streamflow variability.  However, to predict how riverine biota will respond to flow alteration caused by, for example, water diversions and dam operations, ecologists need to understand the mechanisms through which...

Image: Alaskan Glacier
Date Published: November 10, 2016
Status: Active

Glacial Aquifer - Contact Us

Several Research areas are listed and their contacts regarding Glacial Aquifer System Groundwater Availability Study are available here.

 

<- Back to main Glacial Aquifer System Groundwater Availability Study...

Contacts: Howard W Reeves
Colorbanded Roseate Tern, Sterna dougallii
Date Published: October 19, 2016
Status: Active

Modeling Sex-specific Demographic Rates in Metapopulations

The Challenge: Research that integrates population dynamics and ecological studies is needed to identify the causal factors involved in population declines and viability. For highly mobile organisms such as birds, “between-patch” movements and the use of different geographic sites and habitats at various stages of the annual cycle can make it difficult to measure the effectiveness of “within-...

Cairn Krafft with NPS staff sampling vegetation at Rock Creek Park, Washington, D.C.
Date Published: October 19, 2016
Status: Active

Vegetation Studies in National Parks, Wildlife Refuges, and Other Protected Areas

The Challange: Forests and marshes provide critical habitat for numerous species of plants and animals. National Parks, Wildlife Refuges, and other protected areas are attempting to protect, manage, and in some cases, restore our forests and marshes, many of which provide critical habitat for declining, threatened, or endangered species, in addition to providing recreational opportunities...

Ducks eating brine flies
Date Published: October 19, 2016
Status: Active

Survival and Reintroduction of the Laysan Teal

The Challenge: The Laysan Teal is an endangered, endemic, Hawaiian dabbling duck that has been pushed to the brink of extinction numerous times. The previous range includes the Main and Northwestern Hawaiian Islands, and its current range is less than 10 sq. km within the National Wildlife Refuges of Papahānaumokuākea Marine National Monument. This non-migratory waterfowl was eliminated from...

Filter Total Items: 86
Year Published: 2007

A Multiple-Tracer Approach for Identifying Sewage Sources to an Urban Stream System

The presence of human-derived fecal coliform bacteria (sewage) in streams and rivers is recognized as a human health hazard. The source of these human-derived bacteria, however, is often difficult to identify and eliminate, because sewage can be delivered to streams through a variety of mechanisms, such as leaking sanitary sewers or private...

Hyer, Kenneth Edward
A Multiple-Tracer Approach for Identifying Sewage Sources to an Urban Stream System; 2007; SIR; 2006-5317; Hyer, Kenneth Edward

Year Published: 2007

Relation of Chlorofluorocarbon Ground-Water Age Dates to Water Quality in Aquifers of West Virginia

The average apparent age of ground water in fractured-bedrock aquifers in West Virginia was determined using chlorofluorocarbon (CFC) dating methods. Since the introduction of CFC gases as refrigerants in the late 1930s, atmospheric concentrations have increased until production ceased in the mid-1990s. CFC dating methods are based on production...

Kurt, J.; Kozar, Mark D.
Relation of Chlorofluorocarbon Ground-Water Age Dates to Water Quality in Aquifers of West Virginia; 2007; SIR; 2006-5221; McCoy; Kurt J.; Kozar, Mark D.

Year Published: 2006

The Virginia Coastal Plain Hydrogeologic Framework

A refined descriptive hydrogeologic framework of the Coastal Plain of eastern Virginia provides a new perspective on the regional ground-water system by incorporating recent understanding gained by discovery of the Chesapeake Bay impact crater and determination of other geological relations. The seaward-thickening wedge of extensive, eastward-...

McFarland, Randolph E.; Scott, Bruce T.
The Virginia Coastal Plain Hydrogeologic Framework; 2006; PP; 1731; McFarland, E. Randolph; Bruce, T. Scott

Year Published: 2006

Drainage Areas of Selected Streams in Virginia

Drainage areas were determined for more than 1,600 basins in the three major river basins of Virginia -- the North Atlantic Slope, South Atlantic Slope, and Ohio River Basins. Drainage areas range from 0.004 square mile to 7,866 square miles. A geographic information system was used to digitize and store data associated with the drainage basins....

Hayes, Donald C.; Wiegand, Ute
Drainage Areas of Selected Streams in Virginia; 2006; OFR; 2006-1308; Hayes, Donald C.; Wiegand, Ute

Year Published: 2006

Ground-water quality in unmined areas and near reclaimed surface coal mines in the northern and central Appalachian coal regions, Pennsylvania and West Virginia

Findings are presented from investigations during 1996-1998 by the U.S. Geological Survey National Water-Quality Assessment Program. Ground-water quality in 58 wells downgradient of reclaimed surface coal mines is compared to ground-water quality from 25 wells in unmined areas (background concentrations) in the bituminous coal fields of the...

McAuley, Steven D.; Kozar, Mark D.
Ground-Water Quality in Unmined Areas and Near Reclaimed Surface Coal Mines in the Northern and Central Appalachian Coal Regions, Pennsylvania and West Virginia; 2006; SIR; 2006-5059; McAuley, Steven D.; Kozar, Mark D.

Year Published: 2006

Hydrogeology, Aquifer Geochemistry, and Ground-Water Quality in Morgan County, West Virginia

Private and public wells throughout Morgan County, W. Va., were tested to determine aquifer hydraulic, geochemical, and water-quality characteristics. The entire study area is located in the Valley and Ridge Physiographic Province, a region of complex geologic structure and lithology. Aquifers in the study area are characterized by thin to thick...

Boughton, Carol J.; McCoy, Kurt J.
Hydrogeology, Aquifer Geochemistry, and Ground-Water Quality in Morgan County, West Virginia; 2006; SIR; 2006-5198; Boughton, Carol J.; McCoy, Kurt J.

Year Published: 2006

Base-flow yields of watersheds in the Berkeley County area, West Virginia

Base-flow yields at approximately 50 percent of the annual mean ground-water recharge rate were estimated for watersheds in the Berkeley County area, W.Va. These base-flow yields were determined from two sets of discharge measurements made July 25-28, 2005, and May 4, 2006. Two sections of channel along Opequon Creek had net flow losses that are...

Evaldi, Ronald D.; Paybins, Katherine S.
Base-flow yields of watersheds in the Berkeley County area, West Virginia; 2006; DS; 216; Evaldi, Ronald D.; Paybins, Katherine S.

Year Published: 2006

Water resources data Virginia water year 2005 Volume 1. Surface-water discharge and surface-water quality records

Water-resources data for the 2005 water year for Virginia includes records of stage, discharge, and water quality of streams and stage, contents, and water quality of lakes and reservoirs. This volume contains records for water discharge at 172 gaging stations; stage only at 2 gaging stations; elevation at 2 reservoirs and 2 tide gages; contents...

Wicklein, Shaun M.; Powell, Eugene D.; Guyer, Joel R.; Owens, Joseph A.
Water resources data Virginia water year 2005 Volume 1. Surface-water discharge and surface-water quality records; 2006; WDR; VA-05-1; Wicklein, Shaun M.; Powell, Eugene D.; Guyer, Joel R.; Owens, Joseph A.

Year Published: 2006

Physical habitat classification and instream flow modeling to determine habitat availability during low-flow periods, North Fork Shenandoah River, Virginia

Increasing development and increasing water withdrawals for public, industrial, and agricultural water supply threaten to reduce streamflows in the Shenandoah River basin in Virginia. Water managers need more information to balance human water-supply needs with the daily streamflows necessary for maintaining the aquatic ecosystems. To meet the...

Krstolic, Jennifer L.; Hayes, Donald C.; Ruhl, Peter M.
Physical habitat classification and instream flow modeling to determine habitat availability during low-flow periods, North Fork Shenandoah River, Virginia; 2006; SIR; 2006-5025; Krstolic, Jennifer L.; Hayes, Donald C.; Ruhl, Peter M.

Year Published: 2006

Channel gains and losses in the Opequon Creek watershed of West Virginia, July 25-28, 2005

Discharge measurements were made during July 25-28, 2005, in streams and springs and at a wastewater-treatmentplant outfall in the Opequon Creek watershed of West Virginia to describe surface-water resources during low-flow. The greatest spring discharge measured was 6,460 gallons per minute, but 11 of 31 springs inspected were not flowing. Stream...

Evaldi, Ronald D.; Paybins, Katherine S.
Channel gains and losses in the Opequon Creek watershed of West Virginia, July 25-28, 2005; 2006; DS; 179; Evaldi, Ronald D.; Paybins, Katherine S.

Year Published: 2006

Water resources data Virginia water year 2005 Volume 2. Ground-water level and ground-water quality records

Water-resources data for the 2005 water year for Virginia consist of records of water levels and water quality of ground-water wells. This report (Volume 2. Ground-Water-Level and Ground-Water-Quality Records) contains water levels at 349 observation wells and water quality at 29 wells. Locations of these wells are shown on figures 3 through 8....

Wicklein, Shaun M.; Powell, Eugene D.; Guyer, Joel R.; Owens, Joseph A.
Water resources data Virginia water year 2005 Volume 2. Ground-water level and ground-water quality records; 2006; WDR; VA-05-2; Wicklein, Shaun M.; Powell, Eugene D.; Guyer, Joel R.; Owens, Joseph A.

Year Published: 2001

Reconnaissance of Stream Geomorphology, Low Streamflow, and Stream Temperature in the Mountaintop Coal-Mining Region, Southern West Virginia, 1999-2000

The effects of mountaintop removal coal mining and the valley fills created by this mining method in southern West Virginia were investigated by comparing data collected at valley-fill, mined, and unmined sites. Bed material downstream of valley-fill sites had a greater number of particles less than 2 millimeters and a smaller median particle size...

Wiley, Jeffrey B.; Evaldi, Ronald D.; Eychaner, James H.; Chambers, Douglas B.
Reconnaissance of Stream Geomorphology, Low Streamflow, and Stream Temperature in the Mountaintop Coal-Mining Region, Southern West Virginia, 1999-2000; 2001; WRI; 2001-4092; Wiley, Jeffrey B.; Evaldi, Ronald D.; Eychaner, James H.; Chambers, Douglas B.

Filter Total Items: 184
September 30, 2016

Collecting Manual Verticals in TRDI SxS Pro

In this video, we will discuss situations where manual verticals are usually used, and how they are done in the TRDI SxS Pro software. Note: Use of trade names is for descriptive purposes only, and does not imply endorsement by the USGS. For additional videos in this series, visit the following link: 

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September 30, 2016

Accounting for Open Water Flow Angles in TRDI SxS Pro

In this video, we will discuss the specifics of accounting for open water flow angles in the TRDI SxS Pro software. Note: Use of trade names is for descriptive purposes only, and does not imply endorsement by the USGS. For additional videos in this series, visit the following link: 

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September 30, 2016

Registering for USGS Emergency Operations Collection Management Tool

Lesson 13B Part One – USGS Emergency Operations Collection Management Tool This lesson is comprised of instructions on how to register for access to the Collection Management Tool through the EROS Registration System (ERS), how to navigate around the Collection Management Tool, or CMT and finally, How to Submit a Data Acquisition Request (DAR). For the complete listing of

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September 30, 2016

Data Quality Indicators during Data Collection in TRDI SxS Pro

In this video, we will discuss some of the important data quality indicators you can use when collecting data in the TRDI SxS Pro software. Note: Use of trade names is for descriptive purposes only, and does not imply endorsement by the USGS. For additional videos in this series, visit the following link: 

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September 30, 2016

Navigating the USGS Emergency Operations Collection Management Tool

Lesson 13B Part Two – USGS Emergency Operations Collection Management Tool This lesson is comprised of instructions on how to register for access to the Collection Management Tool through the EROS Registration System (ERS), how to navigate around the Collection Management Tool, or CMT and finally, How to Submit a Data Acquisition Request (DAR). For the complete listing of

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September 30, 2016

Dealing with Invalid Depths in TRDI SxS Pro

In this video, we will discuss how to deal with invalid depths during data collection in the TRDI SxS Pro software. Note: Use of trade names is for descriptive purposes only, and does not imply endorsement by the USGS. For additional videos in this series, visit the following link: 

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September 30, 2016

Submitting Data Acquisition Request in USGS Collection Management Tool

Lesson 13B Part 3– USGS Emergency Operations Collection Management Tool This lesson is comprised of instructions on how to register for access to the Collection Management Tool through the EROS Registration System (ERS), how to navigate around the Collection Management Tool, or CMT and finally, How to Submit a Data Acquisition Request (DAR). For the complete listing of

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September 30, 2016

Ending Edge Data Collection in TRDI SxS Pro

In this video, we will demonstrate how to collect an ending edge as part of a midsection ADCP measurement in TRDI SxS Pro. Note: Use of trade names is for descriptive purposes only, and does not imply endorsement by the USGS. For additional videos in this series, visit the following link: 

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September 30, 2016

Editing Vertical Information in TRDI SxS Pro

In this video, we will discuss how to edit vertical information during playback of a measurement in TRDI SxS Pro. Note: Use of trade names is for descriptive purposes only, and does not imply endorsement by the USGS. For additional videos in this series, visit the following link: 

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September 30, 2016

Processing Parameters in TRDI SxS Pro

In this video, we will discuss the Processing dialog in TRDI SxS Pro. Note: Use of trade names is for descriptive purposes only, and does not imply endorsement by the USGS. For additional videos in this series, visit the following link: https://www2.usgs.gov/humancapital/ecd/

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September 30, 2016

Importing a TRDI SxS Pro Measurement into SVMobile

In this video, we will discuss how to import a TRDI SxS Pro measurement file into SVMobile. Note: Use of trade names is for descriptive purposes only, and does not imply endorsement by the USGS. For additional videos in this series, visit the following link: https://www2.usgs.gov

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September 30, 2016

Collecting Open Water Midsection ADCP Measurements in TRDI SxS Pro

In this video, we will demonstrate how to collect data at a station as part of an open water midsection ADCP measurement in TRDI SxS Pro. Note: Use of trade names is for descriptive purposes only, and does not imply endorsement by the USGS. For additional videos in this series, visit the following link: 

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Filter Total Items: 78
USGS
October 22, 2014

Landscape change in Pennsylvania's Cameron, Clarion, Elk, Forest, Jefferson, McKean, Potter, and Warren counties resulting from construction of well pads, new roads and pipelines for natural gas and coalbed methane development is being documented to help determine the potential consequences for ecosystems and wildlife, according to a new U.S. Geological Survey report.

USGS
August 4, 2014

Vital coastal storm-tide information needed to help guide storm response efforts following major storms affecting District of Columbia will be more accessible than ever due to a new monitoring network the U.S. Geological Survey is currently building.

USGS
August 4, 2014

Vital coastal storm-tide information needed to help guide storm response efforts following major storms affecting Maryland will be more accessible than ever due to a new monitoring network the U.S. Geological Survey is currently building.  

USGS
May 27, 2014

Flooding in coastal areas bordering Great South Bay, N.Y. and Barnegat Bay, N.J. caused by winter storms that occurred following Hurricane Sandy was not influenced by changes Sandy made to barrier islands or other bay features, according to a new U.S. Geological Survey study.

USGS
April 9, 2014

Oyster aquaculture in the Potomac River estuary could result in significant improvements to water quality, according to a new NOAA and U.S. Geological Survey study published in the journal Aquatic Geochemistry.

USGS science for a changing world logo
February 12, 2014

Recording bats' echolocation "calls" is the most efficient and least intrusive way of identifying different species of bats in a given area, providing insight into some populations that have been decimated by white-nose syndrome.

Filter Total Items: 135