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The collection of borehole geophysical logs and images and continuous water-level data was conducted by the U.S. Geological Survey South Atlantic Water Science Center in the vicinity of the GMH Electronics Superfund site near Roxboro, North Carolina, during December 2012 through July 2015. The study purpose was part of a continued effort to assist the U.S. Environmental Protection Agency in the development of a conceptual groundwater model for the assessment of current contaminant distribution and future migration of contaminants. Previous work by the U.S. Geological Survey South Atlantic Water Science Center at the site involved similar data collection, in addition to surface geologic mapping and passive diffusion...
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Sandy ocean beaches in the United States are popular tourist and recreational destinations and constitute some of the most valuable real estate in the country. The boundary between land and water along the coastline is often the location of concentrated residential and commercial development and is frequently exposed to a range of natural hazards, which include flooding, storm effects, and coastal erosion. In response, the U.S. Geological Survey (USGS) is conducting a national assessment of coastal change hazards. One component of this research effort, the National Assessment of Shoreline Change Project (http://coastal.er.usgs.gov/shoreline-change/), documents changes in shoreline position as a proxy for coastal...
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The U. S. Geological Survey (USGS) makes long-term seismic hazard forecasts that are used in building codes. The hazard models usually consider only natural seismicity; non-tectonic (man-made) earthquakes are excluded because they are transitory or too small. In the past decade, however, thousands of earthquakes related to underground fluid injection have occurred in the central and eastern U.S. (CEUS), and some have caused damage. In response, the USGS is now also making short-term forecasts that account for the hazard from these induced earthquakes. A uniform earthquake catalog is assembled by combining and winnowing pre-existing source catalogs. Seismicity statistics are analyzed to develop recurrence models,...
Abstract (from http://www.esajournals.org/doi/abs/10.1890/11-2296.1): Physiological tolerance of environmental conditions can influence species-level responses to climate change. Here, we used species-specific thermal tolerances to predict the community responses of ant species to experimental forest-floor warming at the northern and southern boundaries of temperate hardwood forests in eastern North America. We then compared the predictive ability of thermal tolerance vs. correlative species distribution models (SDMs) which are popular forecasting tools for modeling the effects of climate change. Thermal tolerances predicted the responses of 19 ant species to experimental climate warming at the southern site,...
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This EnviroAtlas web service supports research and online mapping activities related to EnviroAtlas (https://www.epa.gov/enviroatlas). The Clean and Plentiful Water category in this web service includes layers illustrating the ecosystems and natural resources that filter and regulate water, the need or demand for clean and plentiful water, the impacts associated with water quality, and factors that place stress on water quality and supply. EnviroAtlas allows the user to interact with a web-based, easy-to-use, mapping application to view and analyze multiple ecosystem services for the conterminous United States. Additional descriptive information about each attribute in this web service is located within each web...
Types: Citation; Tags: 12-digit HUCs, Agriculture, Air, Alabama, Alaska, All tags...


map background search result map search result map EnviroAtlas - Clean and Plentiful Water Metrics for the Conterminous United States Water level data during pumping for stressed HPFM measurements for selected boreholes near GMH Electronics Superfund site, Roxboro, NC (2012-2015) Digital Shoreline Analysis System version 4.3 Transects with Short-Term End Point Rate Calculations for central North Carolina (NCcentral) USGS Topo Map Vector Data (Vector) 6266 Burlington NC (published 20240103) FileGDB USGS Topo Map Vector Data (Vector) 8958 Clarksville South VA (published 20221019) FileGDB USGS Topo Map Vector Data (Vector) 70617 Lake Brandt NC (published 20240103) FileGDB USGS Topo Map Vector Data (Vector) 8046 Chadbourn NE NC (published 20221018) FileGDB USGS Topo Map Vector Data (Vector) 8144 Chapanoke NC (published 20221018) FileGDB USGS Topo Map Vector Data (Vector) 14004 Elk Park NC (published 20221018) FileGDB USGS Topo Map Vector Data (Vector) 19687 Havelock NC (published 20221018) FileGDB USGS Topo Map Vector Data (Vector) 25605 Lexington West NC (published 20240103) FileGDB USGS Topo Map Vector Data (Vector) 26058 Little Switzerland NC (published 20221018) FileGDB USGS Topo Map Vector Data (Vector) 30184 Moravian Falls NC (published 20221018) FileGDB USGS Topo Map Vector Data (Vector) 30714 Mount Mitchell NC (published 20221018) FileGDB USGS Topo Map Vector Data (Vector) 30991 Moyock NC (published 20221018) FileGDB USGS Topo Map Vector Data (Vector) 37772 Rich Square NC (published 20221018) FileGDB USGS Topo Map Vector Data (Vector) 42361 Southwest Lumberton NC (published 20221018) FileGDB USGS Topo Map Vector Data (Vector) 46535 Valentines VA (published 20221019) FileGDB Digital Shoreline Analysis System version 4.3 Transects with Short-Term End Point Rate Calculations for central North Carolina (NCcentral) USGS Topo Map Vector Data (Vector) 6266 Burlington NC (published 20240103) FileGDB USGS Topo Map Vector Data (Vector) 8958 Clarksville South VA (published 20221019) FileGDB USGS Topo Map Vector Data (Vector) 70617 Lake Brandt NC (published 20240103) FileGDB USGS Topo Map Vector Data (Vector) 8046 Chadbourn NE NC (published 20221018) FileGDB USGS Topo Map Vector Data (Vector) 8144 Chapanoke NC (published 20221018) FileGDB USGS Topo Map Vector Data (Vector) 14004 Elk Park NC (published 20221018) FileGDB USGS Topo Map Vector Data (Vector) 19687 Havelock NC (published 20221018) FileGDB USGS Topo Map Vector Data (Vector) 25605 Lexington West NC (published 20240103) FileGDB USGS Topo Map Vector Data (Vector) 26058 Little Switzerland NC (published 20221018) FileGDB USGS Topo Map Vector Data (Vector) 30184 Moravian Falls NC (published 20221018) FileGDB USGS Topo Map Vector Data (Vector) 30714 Mount Mitchell NC (published 20221018) FileGDB USGS Topo Map Vector Data (Vector) 30991 Moyock NC (published 20221018) FileGDB USGS Topo Map Vector Data (Vector) 37772 Rich Square NC (published 20221018) FileGDB USGS Topo Map Vector Data (Vector) 42361 Southwest Lumberton NC (published 20221018) FileGDB USGS Topo Map Vector Data (Vector) 46535 Valentines VA (published 20221019) FileGDB EnviroAtlas - Clean and Plentiful Water Metrics for the Conterminous United States