Skip to main content
U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Results

184563 results.

Alternate formats: RIS file of the first 3000 search results  |  Download all results as CSV | TSV | Excel  |  RSS feed based on this search  |  JSON version of this page of results

Page 1884, results 47076 - 47100

Show results on a map

Publication Extents

Not all publications have extents, not all extents are completely accurate
Monitoring and assessment of ocean acidification in the Arctic Ocean-A scoping paper
Lisa L. Robbins, Kimberly K. Yates, Richard Feely, Victoria Fabry
2010, Open-File Report 2010-1227
Carbon dioxide (CO2) in the atmosphere is absorbed at the ocean surface by reacting with seawater to form a weak, naturally occurring acid called carbonic acid. As atmospheric carbon dioxide increases, the concentration of carbonic acid in seawater also increases, causing a decrease in ocean pH and carbonate mineral saturation...
Quality of surface water in Missouri, water year 2009
Miya N. Barr
2010, Open-File Report 2010-1233
The U.S. Geological Survey, in cooperation with the Missouri Department of Natural Resources, designs and operates a series of monitoring stations on streams throughout Missouri known as the Ambient Water-Quality Monitoring Network. During the 2009 water year (October 1, 2008, through September 30, 2009), data were collected at 75 stations-69...
Proceedings of the U.S. Geological Survey Interdisciplinary Microbiology Workshop, Estes Park, Colorado, October 15-17, 2008
Kay Marano-Briggs, editor(s)
2010, Scientific Investigations Report 2010-5146
Preface A U.S. Geological Survey Interdisciplinary Microbiology Workshop was held in Estes Park, Colorado, on October 15-17, 2008. Participants came from all USGS regions and disciplines. This report contains abstracts from 36 presentations and 35 poster sessions and notes from 5 breakout sessions. The seven presentation topics follow: Ecology of wildlife and...
Characteristics of sediment data and annual suspended-sediment loads and yields for selected lower Missouri River mainstem and tributary stations, 1976-2008
David C. Heimann, Patrick P. Rasmussen, Teri L. Cline, Lori M. Pigue, Holly R. Wagner
2010, Data Series 530
Suspended-sediment data from 18 selected surface-water monitoring stations in the lower Missouri River Basin downstream from Gavins Point Dam were used in the computation of annual suspended-sediment and suspended-sand loads for 1976 through 2008. Three methods of suspended-sediment load determination were utilized and these included the subdivision method, regression of...
Hydrogeology and water quality in the Snake River alluvial aquifer at Jackson Hole Airport, Jackson, Wyoming, September 2008–June 2009
Peter R. Wright
2010, Scientific Investigations Report 2010-5172
The hydrogeology and water quality of the Snake River alluvial aquifer, at the Jackson Hole Airport in northwest Wyoming, was studied by the U.S. Geological Survey in cooperation with the Jackson Hole Airport Board and the Teton Conservation District during September 2008-June 2009. Hydrogeologic conditions were characterized using data collected...
Bathymetric and streamflow data for the Quillayute, Dickey, and Bogachiel Rivers, Clallam County, Washington, April-May 2010
Jonathan A. Czuba, Christiana R. Barnas, Thomas E. McKenna, Gregory Justin, Karen L. Payne
2010, Data Series 537
To facilitate the development of a two-dimensional hydrodynamic model of the Quillayute River estuary, the U.S. Geological Survey conducted a bathymetric survey of the Quillayute River and its tributaries, upstream of the La Push Harbor. Streamflow also was measured concurrent with the bathymetric survey. This report documents the bathymetric and...
Low-flow characteristics of the Mississippi River upstream from the Twin Cities Metropolitan Area, Minnesota, 1932-2007
Erich Kessler, David L. Lorenz
2010, Scientific Investigations Report 2010-5163
The U.S. Geological Survey, in cooperation with the Metropolitan Council, conducted a study to characterize regional low flows during 1932?2007 in the Mississippi River upstream from the Twin Cities metropolitan area in Minnesota and to describe the low-flow profile of the Mississippi River between the confluence of the Crow River...
Groundwater-quality data for the Sierra Nevada study unit, 2008: Results from the California GAMA program
Jennifer L. Shelton, Miranda S. Fram, Cathy M. Munday, Kenneth Belitz
2010, Data Series 534
Groundwater quality in the approximately 25,500-square-mile Sierra Nevada study unit was investigated in June through October 2008, as part of the Priority Basin Project of the Groundwater Ambient Monitoring and Assessment (GAMA) Program. The GAMA Priority Basin Project is being conducted by the U.S. Geological Survey (USGS) in cooperation with...
Database of recent tsunami deposits
Robert Peters, Bruce E. Jaffe
2010, Open-File Report 2010-1172
This report describes a database of sedimentary characteristics of tsunami deposits derived from published accounts of tsunami deposit investigations conducted shortly after the occurrence of a tsunami. The database contains 228 entries, each entry containing data from up to 71 categories. It includes data from 51 publications covering 15 tsunamis...
Occurrence and sources of Escherichia coli in metropolitan St. Louis streams, October 2004 through September 2007
Donald H. Wilkison, Jerri V. Davis
2010, Scientific Investigations Report 2010-5150
The occurrence and sources of Escherichia coli (E. coli), one of several fecal indicator bacteria, in metropolitan St. Louis streams known to receive nonpoint source runoff, occasional discharges from combined and sanitary sewers, and treated wastewater effluent were investigated from October 2004 through September 2007. Three Missouri River sites, five Mississippi...
Characterization of water quality and biological communities, Fish Creek, Teton County, Wyoming, 2007-08
Cheryl A. Eddy-Miller, David A. Peterson, Jerrod D. Wheeler, Daniel J. Leemon
2010, Scientific Investigations Report 2010-5188
Fish Creek, a tributary to the Snake River, is about 25 river kilometers long and is located in Teton County in western Wyoming near the town of Wilson. Public concern about nuisance growths of aquatic plants in Fish Creek have been increasing in recent years. To address this concern, the...
Age and sex specific timing, frequency, and spatial distribution of horseshoe crab spawning in Delaware Bay: Insights from a large-scale radio telemetry array
David R. Smith, L. J. Brousseau, Mary T. Mandt, Michael J. Millard
2010, Current Zoology (56) 563-574
To study horseshoe crab Limulus polyphemus spawning behavior and migration over a large-spatial extent (>100 km), we arrayed fixed station radio receivers throughout Delaware Bay and deployed radio transmitters and archival tags on adult horseshoe crabs prior to their spawning season. We tagged and released 160 females and 60 males in 2004...
Survival of captive and free-ranging Harlequin Ducks (Histrionicus histrionicus) following surgical liver biopsy
Daniel M. Mulcahy, Daniel Esler
2010, Journal of Wildlife Diseases (46) 1325-1329
We measured intra- and postoperative mortality rates of captive and free-ranging Harlequin Ducks (Histrionicus histrionicus) undergoing surgical liver biopsy sampling for determination of the induction of cytochrome P4501A, a biomarker of oil exposure. Liver biopsies were taken from and radio transmitters were implanted into 157 free-ranging Harlequin Ducks over three...
Introduction
Alice Aureli, A. Ivan Johnson, Laura Carbognin, Keith R. Prince, Frans B. Barends, Dora Carreon-Freyre, Devin L. Galloway, Giuseppe Gambolati, Jane Frankenfield Zanin
Dora Carreon-Freyre, Mariano Cerca, Devin Galloway, editor(s)
2010, Book chapter, Land subsidence, associated hazards, and the role of natural resources development, IAHS-AISH publication 339
No abstract available....
The carbon budget of the northern cryosphere region
A. David McGuire, Robie W. Macdonald, Edward A.G. Schuur, Jennifer W. Harden, Peter Kuhry, Daniel J. Hayes, Torben R. Christensen, Martin Heimann
2010, Current Opinion in Environmental Sustainability (2) 231-236
The northern cryosphere is undergoing substantial warming of permafrost and loss of sea ice. Release of stored carbon to the atmosphere in response to this change has the potential to affect the global climate system. Studies indicate that the northern cryosphere has been not only a substantial sink for atmospheric...
Lessons from (triggered) tremor
Joan Gomberg
2010, Journal of Geophysical Research B: Solid Earth (115)
I test a “clock-advance” model that implies triggered tremor is ambient tremor that occurs at a sped-up rate as a result of loading from passing seismic waves. This proposed model predicts that triggering probability is proportional to the product of the ambient tremor rate and a function describing the efficacy...
Hydrovolcanic features on Mars: Preliminary analysis of one Mars year of HiRISE observations
Laszlo P. Keszthelyi, Windy L. Jaeger, Colin M. Dundas, Sara Martinez-Alonso, Alfred S. McEwen, Moses P. Milazzo
2010, Icarus (205) 211-229
We provide an overview of features indicative of the interaction between water and lava and/or magma on Mars as seen by the High Resolution Imaging Science Experiment (HiRISE) camera during the Primary Science Phase of the Mars Reconnaissance Orbiter (MRO) mission. The ability to confidently resolve meter-scale features from orbit...
Founding population size of an aquatic invasive species
Steven T. Kalinowski, Clint C. Muhlfeld, Christopher S. Guy, Benjamin Cox
2010, Conservation Genetics (11) 2049-2053
Non-native species of fish threaten native fishes throughout North America, and in the Rocky Mountains, introduced populations of lake trout threaten native populations of bull trout. Effective management of lake trout and other exotic species require understanding the dynamics of invasion in order to either suppress non-native populations or to...
Fundamental changes in the activity of the natrocarbonatite volcano Oldoinyo Lengai, Tanzania
Matthieu Kervyn, Gerald G.J. Ernst, Jorg Keller, R. Greg Vaughan, Jurgis Klaudius, Evelyne Pradal, Frederic Belton, Hannes B. Mattsson, Evelyne Mbede, Patric Jacobs
2010, Bulletin of Volcanology (72) 913-931
On September 4, 2007, after 25 years of effusive natrocarbonatite eruptions, the eruptive activity of Oldoinyo Lengai (OL), N Tanzania, changed abruptly to episodic explosive eruptions. This transition was preceded by a voluminous lava eruption in March 2006, a year of quiescence, resumption of natrocarbonatite eruptions in June 2007, and a...
Tree growth and mortality during 20 years of managing a Green-Tree Reservoir in Arkansas, USA
Bobby D. Keeland, Rassa O. Draugelis-Dale, John W. McCoy
2010, Wetlands (30) 405-416
Green-Tree Reservoirs (GTR) are bottomland hardwood forests that are flooded during late fall and winter to provide waterfowl habitat. Early reports suggested that increased moisture improved tree growth and mast production; however, recent reports showed reduced vigor and growth. This study examines the effects of 20 years of GTR management practices...
Persistent organic pollutants in the blood of free-ranging sea otters (Enhydra lutris ssp.) in Alaska and California
David A. Jessup, Christine K. Johnson, James A. Estes, Daphne Carlson-Bremer, Walter M. Jarman, Stacey Reese, Erin Dodd, M. Tim Tinker, Michael H. Ziccardi
2010, Journal of Wildlife Diseases (46) 1214-1233
As part of tagging and ecologic research efforts in 1997 and 1998, apparently healthy sea otters of four age-sex classes in six locations in Alaska and three in California were sampled for persistent organic pollutants (POPs) and other chemicals of ecologic or environmental concern (COECs). Published techniques for the detection...
Wayward youth: Trans-Beringian movement and differential southward migration by juvenile sharp-tailed sandpipers
Colleen M. Handel, Robert E. Gill Jr.
2010, Arctic (63) 273-288
The sharp-tailed sandpiper (Calidris acuminata) is a long-distance migrant that travels each year from breeding grounds in the Russian Arctic to nonbreeding areas in Australasia. Most adults migrate rapidly from breeding grounds along a largely inland route through Asia. Here we report on the highly unusual migratory strategy of this...
Development of characterization technology for fault zone hydrology
K. Karasaki, Celia Tiemi Onishi, Erika Gasperikova, Junichi Goto, Hiroyuki Tsuchi, Tadashi Miwa, Keiichi Ueta, Kenzo Kiho, Kimio Miyakawa
2010, Conference Paper, Conference proceedings: International Conference on Environmental Remediation and Radioactive Waste Management
Several deep trenches were cut, and a number of geophysical surveys were conducted across the Wildcat Fault in the hills east of Berkeley, California. The Wildcat Fault is believed to be a strike-slip fault and a member of the Hayward Fault System, with over 10 km of displacement. So far,...