Geophysical log database for the Floridan aquifer system and southeastern Coastal Plain aquifer system in Florida and parts of Georgia, Alabama, and South Carolina
Lester J. Williams, Jessica E. Raines, Amanda E. Lanning
2016, Data Series 760
A database of borehole geophysical logs and other types of data files were compiled as part of ongoing studies of water availability and assessment of brackish- and saline-water resources. The database contains 4,883 logs from 1,248 wells in Florida, Georgia, Alabama, South Carolina, and from a limited number of offshore...
Unsteady flow in natural compound channel: Experiment and simulation
Francisco J. Simoes, Paul J. Kinzel
2016, Conference Paper, River flow 2012: Proceedings of the International Conference on Fluvial Hydraulics
Phragmites Australis, or common reed, is an invasive plant species that has spread along channels of the Platte River (Nebraska, USA), adversely altering the biogeomorphology of the system. Of particular interest have been the impacts on riparian habitat, specifically the reduction of suitable areas for crane roosting and shorebird nesting....
Impact of carbon dioxide level, water velocity, and feeding regimen on growth and fillet attributes of cultured rainbow trout (Oncorhynchus mykiss)
Patricia M. Mazik, P. M. Mazik, P. B. Kenney, J.T Silverstein
2016, Book chapter, Aquaculture
Production and management variables such as carbon dioxide (CO2) level, water velocity, and feeding frequency influence the growth and fillet attributes of rainbow trout (Oncorhynchus mykiss), as well as cost of production. More information is needed to determine the contributions of these variables to growth...
Tabulated Transmissivity and Storage Properties of the Floridan Aquifer System in Florida and Parts of Georgia, South Carolina, and Alabama
Eve L. Kuniansky, Jason C. Bellino
2016, Data Series 669
A goal of the U.S. Geological Survey Groundwater Resources Program is to assess the availability of fresh water within each of the principal aquifers in the United States with the greatest groundwater withdrawals. The Floridan aquifer system (FAS), which covers an area of approximately 100,000 square miles in Florida and...
Integrated water flow model and modflow-farm process: A comparison of theory, approaches, and features of two integrated hydrologic models
Emin C. Dogrul, Wolfgang Schmid, Randall T. Hanson, Tariq Kadir, Francis Chung
2016, Report
Effective modeling of conjunctive use of surface and subsurface water resources requires simulation of land use-based root zone and surface flow processes as well as groundwater flows, streamflows, and their interactions. Recently, two computer models developed for this purpose, the Integrated Water Flow Model (IWFM) from the California Department of...
Determination of dilution factors for discharge of aluminum-containing wastes by public water-supply treatment facilities into lakes and reservoirs in Massachusetts
John A. Colman, Andrew J. Massey, Sara L. Brandt
2016, Scientific Investigations Report 2011-5136
Dilution of aluminum discharged to reservoirs in filter-backwash effluents at water-treatment facilities in Massachusetts was investigated by a field study and computer simulation. Determination of dilution is needed so that permits for discharge ensure compliance with water-quality standards for aquatic life. The U.S. Environmental Protection Agency chronic standard for aluminum,...
Wildfire, climate, and invasive grass interactions negatively impact an indicator species by reshaping sagebrush ecosystems
Peter S. Coates, Mark A. Ricca, Brian G. Prochazka, Matthew L. Brooks, Kevin E. Doherty, Travis Kroger, Erik J. Blomberg, Christian A. Hagen, Michael L. Casazza
2016, PNAS (113) 12745-12750
Iconic sagebrush ecosystems of the American West are threatened by larger and more frequent wildfires that can kill sagebrush and facilitate invasion by annual grasses, creating a cycle that alters sagebrush ecosystem recovery post disturbance. Thwarting this accelerated grass–fire cycle is at the forefront of current national conservation efforts, yet...
Development and evaluation of clear-water pier and contraction scour envelope curves in the Coastal Plain and Piedmont Provinces of South Carolina
Stephen T. Benedict, Andral W. Caldwell
2016, Scientific Investigations Report 2005-5289
The U.S. Geological Survey in cooperation with the South Carolina Department of Transportation collected clear-water pier- and contraction-scour data at 116 bridges in the Coastal Plain and Piedmont Physiographic Provinces of South Carolina. Pier-scour depths collected in both provinces ranged from 0 to 8.0 feet. Contraction-scour depths collected in the...
National Land Cover Database 2001 (NLCD01)
Andrew E. LaMotte
2016, Data Series 383
This 30-meter data set represents land use and land cover for the conterminous United States for the 2001 time period. The data have been arranged into four tiles to facilitate timely display and manipulation within a Geographic Information System (see http://water.usgs.gov/GIS/browse/nlcd01-partition.jpg). The National Land Cover Data Set for 2001 was...
Clear-water abutment and contraction scour in the Coastal Plain and Piedmont Provinces of South Carolina, 1996-99
Stephen T. Benedict
2016, Water-Resources Investigations Report 2003-4064
The U.S. Geological Survey, in cooperation with the South Carolina Department of Transportation, collected observations of clear-water aburment and contraction scour at 146 bridges in the Coastal Plain and Piedmont of South Carolina. Scour depths ranged from 0 to 23.6 feet. Theoretical scour depths were computed at each bridge and...
Cenozoic volcanic rocks of Saudi Arabia
R. G. Coleman, R. T. Gregory, Glen F. Brown
2016, Open-File Report 83-788
The Cenozoic volcanic rocks of Saudi Arabia cover about 90,000 km2, one of the largest areas of alkali olivine basalt in the world. These volcanic rocks are in 13 separate fields near the eastern coast of the Red Sea and in the western Arabian Peninsula highlands from Syria southward to...
GIS-Based Identification of Areas with Mineral Resource Potential for Six Selected Deposit Groups, Bureau of Land Management Central Yukon Planning Area, Alaska
James V. Jones III, Susan M. Karl, Keith A. Labay, Nora B. Shew, Matthew Granitto, Timothy S. Hayes, Jeffrey L. Mauk, Jeanine M. Schmidt, Erin Todd, Bronwen Wang, Melanie B. Werdon, Douglas B. Yager
2015, Open-File Report 2015-1021
This study, covering the Bureau of Land Management (BLM) Central Yukon Planning Area (CYPA), Alaska, was prepared to aid BLM mineral resource management planning. Estimated mineral resource potential and certainty are mapped for six selected mineral deposit groups: (1) rare earth element (REE) deposits associated with peralkaline to carbonatitic intrusive...
The Moloka‘i coral reef today, and alternatives for the future: Summary in The coral reef of south Moloka‘i, Hawai‘i—Portrait of a sediment-threatened fringing reef
Michael E. Field, Susan A. Cochran, Joshua B. Logan, Curt D. Storlazzi
2015, Scientific Investigations Report 2015-5123
From the contributions collected in this publication have emerged two important observations that have significance locally, nationally, and internationally. First, the fringing coral reef along the south coast of Moloka'i is one of the most extensive and luxuriant reefs in the eight main Hawaiian Islands. It is longer and more...
Scanning and georeferencing historical USGS quadrangles (ver. 2.0, May 2015)
Larry R. Davis, William J. Carswell Jr.
2015, Fact Sheet 2011-3009-(version 2.0)
The U.S. Geological Survey (USGS) National Geospatial Program is scanning published USGS 1:250,000-scale and larger topographic maps printed between 1884, the inception of the topographic mapping program, and 2006. The goal of this scanning, which started in 2011, is to provide a digital repository of USGS topographic maps, available to...
Surface-water quality in agricultural watersheds of the North Carolina Coastal Plain associated with concentrated animal feeding operations
Stephen L. Harden
2015, Scientific Investigations Report 2015-5080
The effects of concentrated animal feeding operations (CAFOs) on water quality were investigated at 54 agricultural stream sites throughout the North Carolina Coastal Plain during 2012 and 2013. Three general watershed land-use types were examined during the study, including 18 background watersheds with no active CAFOs (BK sites), 18 watersheds...
Preliminary methodology to assess the national and regional impact of U.S. wind energy development on birds and bats
James E. Diffendorfer, Julie A. Beston, Matthew D. Merrill, Jessica C. Stanton, M.D. Corum, Scott R. Loss, Wayne E. Thogmartin, Douglas H. Johnson, Richard A. Erickson, Kevin W. Heist
2015, Scientific Investigations Report 2015-5066
The U.S. Geological Survey has developed a methodology to assess the impacts of wind energy development on wildlife; it is a probabilistic, quantitative assessment methodology that can communicate to decision makers and the public the magnitude of these effects on species populations. The methodology is currently applicable to birds and...
Effects of simple acid leaching of crushed and powdered geological materials on high-precision Pb isotope analyses
Erin Todd, Andreas Stracke, Erik Scherer
2015, Geochemistry, Geophysics, Geosystems (16) 2276-2302
We present new results of simple acid leaching experiments on the Pb isotope composition of USGS standard reference material powders and on ocean island basalt whole rock splits and powders. Rock samples were leached with cold 6 N HCl in an ultrasonic bath, then on a hot plate, and washed with ultrapure...
Activity-specific ecological niche models for planning reintroductions of California condors (Gymnogyps californianus)
Jesse D'Elia, Susan M. Haig, Matthew J. Johnson, Bruce G. Marcot, Richard Young
2015, Biological Conservation (184) 90-99
Ecological niche models can be a useful tool to identify candidate reintroduction sites for endangered species but have been infrequently used for this purpose. In this paper, we (1) develop activity-specific ecological niche models (nesting, roosting, and feeding) for the critically endangered California condor (Gymnogyps californianus) to aid in reintroduction...
Projected changes in diverse ecosystems from climate warming and biophysical drivers in northwest Alaska
Mark Torre Jorgenson, Bruce G. Marcot, David K. Swanson, Janet C. Jorgenson, Anthony R. DeGange
2015, Climatic Change (130) 131-144
Climate warming affects arctic and boreal ecosystems by interacting with numerous biophysical factors across heterogeneous landscapes. To assess potential effects of warming on diverse local-scale ecosystems (ecotypes) across northwest Alaska, we compiled data on historical areal changes over the last 25–50 years. Based on historical rates of change relative to time...
Map projections and reference systems
Miljenko Lapaine, E. Lynn Usery
B. Rystedt, F. Ormeling, editor(s)
2015, Book chapter, International map year 2015: The world of maps
No abstract available....
The 2014 Mw6.1 South Napa Earthquake: A unilateral rupture with shallow asperity and rapid afterslip
Shengji Wei, Sylvain Barbot, Robert Graves, James J. Lienkaemper, Teng Wang, Kenneth W. Hudnut, Yuning Fu, Don Helmberger
2015, Seismological Research Letters (86) 344-354
The Mw6.1 South Napa earthquake occurred near Napa, California on August 24, 2014 (UTC), and was the largest inland earthquake in Northern California since the 1989 Mw6.9 Loma Prieta earthquake. The first report of the earthquake from the Northern California Earthquake Data Center (NCEDC) indicates a hypocentral depth of 11.0km...
Stratigraphic reconnaissance of the Middle Jurassic Red Glacier Formation, Tuxedni Group, at Red Glacier, Cook Inlet, Alaska
David L. LePain, Richard G. Stanley
2015, Report
The Alaska Division of Geological & Geophysical Surveys (DGGS) and U.S. Geological Survey (USGS) are implementing ongoing programs to characterize the petroleum potential of Cook Inlet basin. Since 2009 this program has included work on the Mesozoic stratigraphy of lower Cook Inlet, including the Middle Jurassic Tuxedni Group between Tuxedni...
Structured decision making for management of warm-water habitat for manatees. Final report to U.S. Fish and Wildlife Service
Michael Kosempa, Julien Martin, Fred A. Johnson, Ron Mezich, Brad Stith, Charles J. Deutsch, Michelle Masi, Holly H. Edwards
2015, Report
Status and trends of the Lake Huron offshore demersal fish community, 1976-2012
Edward F. Roseman, Stephen C. Riley, Steve A. Farha, Bryan M. Maitland, Taaja R. Tucker, Stacy A. Provo, Matthew W. McLean
2015, Report
The USGS Great Lakes Science Center has conducted trawl surveys to assess annual changes in the offshore demersal fish community of Lake Huron since 1973. Sample sites include five ports in U.S. waters with less frequent sampling near Goderich, Ontario. The 2012 fall bottom trawl survey was carried out between...
Reconnaissance stratigraphic studies in the Susitna basin, Alaska, during the 2014 field season
David L. LePain, Richard G. Stanley, Nina T. Harun, Kenneth P. Helmold, Rebekah Tsigonis
2015, Report
The Susitna basin is a poorly-understood Cenozoic successor basin immediately north of Cook Inlet in south-central Alaska (Kirschner, 1994). The basin is bounded by the Castle Mountain fault and Cook Inlet basin on the south, the Talkeetna Mountains on the east, the Alaska Range on the north, and the Alaska–Aleutian...
