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Page 637, results 15901 - 15925

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Biological inventory of anchialine pools in the Pu'uhonua o Hōnaunau National Historical Park and Pu'ukoholā Heiau National Historical Site, Hawaii Island
Lori K. Tango, David Foote, Karl N. Magnacca, Sarah J. Foltz, Kerry Cutler
2012, Technical Report 181
Inventories for major groups of invertebrates were completed at anchialine pool complexes in Pu‘uhonua o Hōnaunau National Historical Park (PUHO) and Pu‘ukoholā Heiau National Historic Site (PUHE) on the island of Hawai‘i. Nine pools within two pool complexes were surveyed at PUHO, along with one extensive pool at the terminus...
Applying additive modeling and gradient boosting to assess the effects of watershed and reach characteristics on riverine assemblages
Kelly O. Maloney, Matthias Schmid, Donald E. Weller
2012, Methods in Ecology and Evolution (3) 116-128
Issues with ecological data (e.g. non-normality of errors, nonlinear relationships and autocorrelation of variables) and modelling (e.g. overfitting, variable selection and prediction) complicate regression analyses in ecology. Flexible models, such as generalized additive models (GAMs), can address data issues, and machine learning techniques (e.g. gradient boosting) can help resolve modelling...
Comparison of particle-tracking and lumped-parameter age-distribution models for evaluating vulnerability of production wells to contamination
S. M. Eberts, J.K. Böhlke, L. J. Kauffman, B.C. Jurgens
2012, Hydrogeology Journal (20) 263-282
Environmental age tracers have been used in various ways to help assess vulnerability of drinking-water production wells to contamination. The most appropriate approach will depend on the information that is available and that which is desired. To understand how the well will respond to changing nonpoint-source contaminant inputs at the...
Surficial geologic map of the Norton-Manomet-Westport-Sconticut Neck 23-quadrangle area in southeast Massachusetts
Byron D. Stone, Janet Radway Stone, Mary L. DiGiacomo-Cohen, Kevin A. Kincare
2012, Open-File Report 2006-1260-F
The surficial geologic map shows the distribution of nonlithified earth materials at land surface in an area of 23 7.5-minute quadrangles (919 mi2 total) in southeastern Massachusetts. Across Massachusetts, these materials range from a few feet to more than 500 ft in thickness. They overlie bedrock, which crops out in...
AquaPathogen X--A template database for tracking field isolates of aquatic pathogens
Evi Emmenegger, Gael Kurath
2012, Fact Sheet 2012-3015
AquaPathogen X is a template database for recording information on individual isolates of aquatic pathogens and is available for download from the U.S. Geological Survey (USGS) Western Fisheries Research Center (WFRC) website (http://wfrc.usgs.gov). This template database can accommodate the nucleotide sequence data generated in molecular epidemiological studies along with the...
Summary of chemical data from onsite and laboratory analyses of groundwater samples from the surficial aquifer, Las Vegas, Nevada, April and August 1993 and September 1994
Michael M. Reddy, Charmaine D. Gunther
2012, Open-File Report 2012-1029
This report presents a summary of data collected during April and August 1993 and September 1994. These results are to be used as a wet-site analog to southern Nevada soils located at the Amargosa Desert Research Site near Beatty, Nevada. The samples were collected and analyzed in conjunction with the...
Regression model development and computational procedures to support estimation of real-time concentrations and loads of selected constituents in two tributaries to Lake Houston near Houston, Texas, 2005-9
Michael T. Lee, William H. Asquith, Timothy D. Oden
2012, Scientific Investigations Report 2012-5006
In December 2005, the U.S. Geological Survey (USGS), in cooperation with the City of Houston, Texas, began collecting discrete water-quality samples for nutrients, total organic carbon, bacteria (Escherichia coli and total coliform), atrazine, and suspended sediment at two USGS streamflow-gaging stations that represent watersheds contributing to Lake Houston (08068500 Spring...
Groundwater quality and occurrence and distribution of selected constituents in the Aquia and Upper Patapsco aquifers, Naval Air Station Patuxent River, St. Mary's County, Maryland, July 2008
Cheryl A. Dieter, Kimberly W. Campo, Anna C. Baker
2012, Scientific Investigations Report 2012-5011
The Naval Air Station Patuxent River in southern Maryland has continued to expand in the first decade of the 21st century, contributing to rapid population growth in the surrounding area. The increase in population has caused State and County water managers and others to be concerned about the impact of...
The National Land Cover Database
Collin G. Homer, Joyce A. Fry, Christopher A. Barnes
2012, Fact Sheet 2012-3020
The National Land Cover Database (NLCD) serves as the definitive Landsat-based, 30-meter resolution, land cover database for the Nation. NLCD provides spatial reference and descriptive data for characteristics of the land surface such as thematic class (for example, urban, agriculture, and forest), percent impervious surface, and percent tree canopy cover....
Digital surfaces and hydrogeologic data for the Mesozoic through early Tertiary rocks in the Southeastern Coastal Plain in parts of Mississippi, Alabama, Georgia, South Carolina, and Florida
Debra M. Cannon, Jason C. Bellino, Lester J. Williams
2012, Data Series 662
A digital dataset of hydrogeologic data for Mesozoic through early Tertiary rocks in the Southeastern Coastal Plain was developed using data from five U.S. Geological Survey (USGS) reports published between 1951 and 1996. These reports contain maps and data depicting the extent and elevation of the Southeast Coastal Plain stratigraphic...
Biodegradation of chloroethene compounds in groundwater at Operable Unit 1, Naval Undersea Warfare Center, Division Keyport, Washington, 1999-2010
R.S. Dinicola, R.L. Huffman
2012, Scientific Investigations Report 2012-5013
The U.S. Geological Survey evaluated the biodegradation of chloroethene compounds in groundwater beneath the former landfill at Operable Unit 1 (OU 1) of the U.S. Naval Undersea Warfare Center (NUWC), Division Keyport. The predominant contaminants in groundwater are the chloroethene compounds trichloroethene, cis-1,2-dichloroethene, and vinyl chloride. The remedy selected for...
Mercury species and other selected constituent concentrations in water, sediment, and biota of Sinclair Inlet, Kitsap County, Washington, 2007-10
R.L. Huffman, R. J. Wagner, J. Toft, J. Cordell, J.F. DeWild, R.S. Dinicola, G. R. Aiken, D. P. Krabbenhoft, M. Marvin-DiPasquale, A.R. Stewart, P.W. Moran, A.J. Paulson
2012, Data Series 658
This report presents data collected for two U.S. Geological Survey field sampling projects related to mercury (Hg) in Sinclair Inlet: (1) the Watersheds Sources Project that evaluated the sources of mercury to Sinclair Inlet during December 2007 to March 2010, and (2) the Methylation and Bioaccumulation Project, a comprehensive examination...
Flood-inundation maps for the Suncook River in Epsom, Pembroke, Allenstown, and Chichester, New Hampshire
Robert H. Flynn, Craig M. Johnston, Laura Hays
2012, Scientific Investigations Map 3196
Digital flood-inundation maps for a 16.5-mile reach of the Suncook River in Epsom, Pembroke, Allenstown, and Chichester, N.H., from the confluence with the Merrimack River to U.S. Geological Survey (USGS) Suncook River streamgage 01089500 at Depot Road in North Chichester, N.H., were created by the USGS in cooperation with the...
Concentrations of mercury and other metals in black bass (Micropterus spp.) from Whiskeytown Lake, Shasta County, California, 2005
Jason T. May, Roger L. Hothem, Marissa L. Bauer, Larry R. Brown
2012, Open-File Report 2011-1297
This report presents the results of a reconnaissance study conducted by the U.S. Geological Survey (USGS) to determine mercury (Hg) and other selected metal concentrations in Black bass (Micropterus spp.) from Whiskeytown Lake, Shasta County, California. Total mercury concentrations were determined by cold-vapor atomic absorption spectroscopy (CVAAS) in fillets and...
Environmental settings of the South Fork Iowa River basin, Iowa, and the Bogue Phalia basin, Mississippi, 2006-10
Kathleen A. McCarthy, Claire E. Rose, Stephen J. Kalkhoff
2012, Scientific Investigations Report 2012-5021
Studies of the transport and fate of agricultural chemicals in different environmental settings were conducted by the U.S. Geological Survey (USGS) National Water-Quality Assessment (NAWQA) Program's Agricultural Chemicals Team (ACT) at seven sites across the Nation, including the South Fork Iowa River basin in central Iowa and the Bogue Phalia...
Lateral and vertical channel movement and potential for bed-material movement on the Madison River downstream from Earthquake Lake, Montana
Katherine J. Chase, Peter McCarthy
2012, Scientific Investigations Report 2012-5024
The 1959 Hebgen Lake earthquake caused a massive landslide (Madison Slide) that dammed the Madison River and formed Earthquake Lake. The U.S. Army Corps of Engineers excavated a spillway through the Madison Slide to permit outflow from Earthquake Lake. In June 1970, high streamflows on the Madison River severely eroded...
Common coastal foraging areas for loggerheads in the Gulf of Mexico: Opportunities for marine conservation
Kristen M. Hart, Margaret M. Lamont, Ikuko Fujisaki, Anton D. Tucker, Raymond R. Carthy
2012, Biological Conservation (145) 185-194
Designing conservation strategies that protect wide-ranging marine species is a significant challenge, but integrating regional telemetry datasets and synthesizing modeled movements and behavior offer promise for uncovering distinct at-sea areas that are important habitats for imperiled marine species. Movement paths of 10 satellite-tracked female loggerheads (Caretta caretta) from three separate...
EAARL coastal topography--Alligator Point, Louisiana, 2010
Amar Nayegandhi, J.M. Bonisteel-Cormier, C. W. Wright, J. C. Brock, D.B. Nagle, Saisudha Vivekanandan, Xan Fredericks, J.A. Barras
2012, Data Series 665
This project provides highly detailed and accurate datasets of a portion of Alligator Point, Louisiana, acquired on March 5 and 6, 2010. The datasets are made available for use as a management tool to research scientists and natural-resource managers. An innovative airborne lidar instrument originally developed at the National Aeronautics...
Hydrologic conditions, groundwater quality, and analysis of sink hole formation in the Albany area of Dougherty County, Georgia, 2009
Debbie W. Gordon, Jaime A. Painter, John M. McCranie
2012, Scientific Investigations Report 2012-5018
The U.S. Geological Survey, in cooperation with the Albany Water, Gas, and Light Commission has conducted water resources investigations and monitored groundwater conditions and availability in the Albany, Georgia, area since 1977. This report presents an overview of hydrologic conditions, water quality, and groundwater studies in the Albany area of...
Distribution and condition of larval and juvenile Lost River and shortnose suckers in the Williamson River Delta restoration project and Upper Klamath Lake, Oregon
Summer M. Burdick
2012, Open-File Report 2012-1027
Federally endangered Lost River sucker (Deltistes luxatus) and shortnose sucker (Chasmistes brevirostris) were once abundant throughout their range but populations have declined. They were extirpated from several lakes in the 1920s and may no longer reproduce in other lakes. Poor recruitment to the adult spawning populations is one of several...
Groundwater flow, quality (2007-10), and mixing in the Wind Cave National Park area, South Dakota
Andrew J. Long, Marc J. Ohms, Jonathan D.R.G. McKaskey
2012, Scientific Investigations Report 2011-5235
A study of groundwater flow, quality, and mixing in relation to Wind Cave National Park in western South Dakota was conducted during 2007-11 by the U.S. Geological Survey in cooperation with the National Park Service because of water-quality concerns and to determine possible sources of groundwater contamination in the Wind...
Gap Analysis of Benthic Mapping at Three National Parks: Assateague Island National Seashore, Channel Islands National Park, and Sleeping Bear Dunes National Lakeshore
Kathryn V. Rose, Amar Nayegandhi, Christopher S. Moses, Rebecca Beavers, Dawn Lavoie, John Brock
2012, Open-File Report 2011-1291
The National Park Service (NPS) Inventory and Monitoring (I&M) Program initiated a benthic habitat mapping program in ocean and coastal parks in 2008-2009 in alignment with the NPS Ocean Park Stewardship 2007-2008 Action Plan. With more than 80 ocean and Great Lakes parks encompassing approximately 2.5 million acres of submerged...
Water-quality, bed-sediment, and biological data (October 2009 through September 2010) and statistical summaries of data for streams in the Clark Fork basin, Montana
Kent A. Dodge, Michelle I. Hornberger, Jessica Dyke
2012, Open-File Report 2011-1314
Water, bed sediment, and biota were sampled in streams from Butte to near Missoula, Montana, as part of a monitoring program in the upper Clark Fork basin. The sampling program was conducted by the U.S. Geological Survey in cooperation with the U.S. Environmental Protection Agency to characterize aquatic resources in...
Characterization of major-ion chemistry and nutrients in headwater streams along the Appalachian National Scenic Trail and within adjacent watersheds, Maine to Georgia
Denise M. Argue, Jason P. Pope, Fred Dieffenbach
2012, Scientific Investigations Report 2011-5151
An inventory of water-quality data on field parameters, major ions, and nutrients provided a summary of water quality in headwater (first- and second-order) streams within watersheds along the Appalachian National Scenic Trail (Appalachian Trail). Data from 1,817 sampling sites in 831 catchments were used for the water-quality summary. Catchment delineations...