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This report describes the quality of nutrient data in stream and ground-water samples collected in 52 NAWQA study units during water years 1992-2001 based on an analysis of contamination bias and sampling variability. The results of this QC analysis are compared to characteristics of the environmental data and to national water-quality standards and criteria to assess the potential effects of bias and variability on interpretation of the environmental data. The NAWQA study units that provided the QC data represent a broad array of hydrologic conditions in the 48 contiguous States and Alaska and Hawaii. The data were aggregated into a national data set during the spring of 2002 and were extensively reviewed.
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An upward-looking acoustic Doppler velocity meter (ADVM, SonTek SW, 3.0 MHz) located in a tidal channel of the Nisqually River Delta at site D1 (N 47° 05’ 37”/W 122° 43’ 17”) measured water level and current velocity at 15-minute intervals from October 14, 2016 to May 31, 2017 (175 days, excluding missing periods). This site is in a tidal channel at a levee breach where flow is tidally influenced. The water depth of the sensor ranged from 0.44 to 4.41 m. The elevation (NAVD88) of the ADVM sensor was survey by RTN-GPS. The offset to convert all water depth time-series data to water surface elevation (NAVD88) is -0.61 m. The water temperature ranged from -0.4 to 22.7 degrees C but may have been bias during periods...
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This report contains water-quality and sediment-quality data from samples collected in the Yukon River Basin from March through September during the 2004 water year (WY). Samples were collected throughout the year at five stations in the basin (three on the main stem Yukon River, one each on the Tanana and Porcupine Rivers). A broad range of physical, chemical, and biological analyses are presented.
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This report contains water-quality and sediment-quality data from samples collected in the Yukon River Basin from March through September during the 2004 water year (WY). Samples were collected throughout the year at five stations in the basin (three on the main stem Yukon River, one each on the Tanana and Porcupine Rivers). A broad range of physical, chemical, and biological analyses are presented.
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This report contains water-quality and sediment-quality data from samples collected in the Yukon River basin from March through September during the 2002 water year (WY). Samples were collected throughout the year at five stations in the basin (three on the main stem Yukon River, one each on the Tanana and Porcupine Rivers ). A broad range of physical, chemical, and biological analyses are presented.
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Multiple sensors for measuring stage (water level), water temperature, specific conductivity, turbidity and water velocity were installed at site NR2 (N 47° 04' 46.1"/W 122° 42' 30.2"), located approximately 3.1 km upstream from the mouth of the Nisqually River and within the tidal prism. The sensors were connected to a cell-phone telemetered, data collection platform (DCP) used to program and power each sensor as well as synchronize the timing of 15-minute measurement intervals. A vented conductivity, temperature and depth sensor (CTD, InSitu Aqua Troll) measured water temperature, water depth, specific conductance, and salinity from May 11, 2016 to August 3, 2016 (85 days) and from September 8, 2016 to March 16,...
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A vented conductivity, temperature and depth sensor (CTD, InSitu Aqua Troll) was installed at site NR3 (N 47° 05’ 12”/W 122° 42’ 22”) and continuously measured water level, water temperature, specific conductance, and salinity at 15-minute intervals from February 12, 2016 to August 7, 2016 (177 days) and from October 7, 2016 to February 8, 2017 (124 days). This site is tidally influenced and located approximately 2.2 km upstream from the mouth of the Nisqually River. Elevation (NAVD88) of the deployment pipe was surveyed by RTN-GPS. Elevation of pipe plus distance to sensor is included in the offset. The offset needed to convert water depth to NAVD88 water surface elevation is -0.31 meters. . Water depth of the...
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The New York Water Science Center of the U.S. Geological Survey (USGS) in Troy, N.Y., operates a state-of-the-science laboratory for the chemical analysis of soil and water. For over 20 years, the laboratory has specialized in analyses used in acid rain research and other environmental studies such as soil effects on forest health and logging effects on water quality. Laboratory Information: Contact the Lab for customized schedules and fees. phone: (518) 285-5681 Water Soils Ammonium ...
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Summary: "Little is known about natural attenuation of chlorinated solvents in subarctic ground water. This study aimed to better understand the biogeochemistry and microbiology associated with naturally occurring processes of contaminent removal at two hydrologically diverse sites near Fairbanks, Alaska. Six Mile Village, located several km north of the Tanana River, is hydrologically stable, experiencing minor fluctuations in ground-water levels. Fort Wainwright is located adjacent to the Chena River and is hydrologically dynamic, experiencing seasonal flow reversals and substantial fluctuations in water-table elevations. By comparing data collected seasonally and with data collected at the two sites, I determined...
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Objective: The USGS New York Water Science Center (NYWSC) works with other Federal agencies as well as with State, municipal, and tribal agencies to provide research and data about water-related issues. Relevance and Impact: The NYWSC leads the scientific and water-resources management communities by providing high-quality, timely, and unbiased scientific data, reports, and other information that are widely accessible and understandable and that benefit science interests of all levels of government, academia, nongovernmental organizations, the private sector, and the general public. Statement of Problem: The NYWSC studies the effects of weather, climate, and manmade influences on groundwater levels, streamflow (discharge),...
Categories: Data, Project; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Beach and Barrier Dynamics, Beach and Barrier Dynamics, Beach and Barrier dynamics, Coastal Science, Coastal Science, All tags...
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In 1979, the U.S. Geological Survey (USGS) entered into a cooperative agreement with Monroe County (MC), which, over the span of more than three decades, has resulted in more than 30 reports that have summarized flow and water-quality data at sites in Monroe County and have presented the results of investigations of particular water-related issues that existed in the County. The collaborative relationship between Monroe County and the USGS entails: - USGS training and oversight of MC personnel to conduct site visits and measure streamflow and collect water samples at monitoring sites; - analyses of water samples by MC in a certified environmental laboratory that routinely participates in a USGS quality-control program...
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A suite of subglacial water-pressure records from the 1996 summer field season at Trapridge Glacier, Yukon Territory, Canada, discloses a hydraulic event that cannot readily be explained by known forcings. We suggest that these records indicate covert failure of the pressure sensors caused by at least one large water-pressure pulse. The sign and magnitude of the pulse appears to have varied spatially and the pulse duration was less than the 2 min sampling interval of our data loggers. Laboratory experiments support this interpretation and indicate that the pulse magnitude exceeded 900 m of hydraulic head, roughly 15 times the ice-overburden pressure. Within glaciers, large water-pressure pulses can be generated...
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This report contains water-quality and sediment-quality data from samples collected in the Yukon River Basin from March through September during the 2004 water year (WY). Samples were collected throughout the year at five stations in the basin (three on the main stem Yukon River, one each on the Tanana and Porcupine Rivers). A broad range of physical, chemical, and biological analyses are presented.
Our mission is to collect timely and reliable information on the water resources of our six-state region (Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont), and to partner with Federal, State, Tribal, and local agencies in hydrologic studies that advance human health, public safety, and environmental sustainability.
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The article focuses on the snowpack conditions in the Pelly river watershed Yukon, Canada along with the level of snow water and its equivalence to no snow at Hoole river, Canada. (Copyright applies to all Abstracts.)
map background search result map search result map South East Water Census Sites Soil and Low-Ionic-Strength Water Quality Laboratory Water Resources of Monroe County, New York Using Water Isotope Tracers to Investigate Past and Present Water Balance Conditions in the Old Crow Flats, Yukon Territory Natural attenuation of chlorinated solvents in subarctic ground water Ground-water age and its water-management implications, Cook Inlet Basin, Alaska Water and sediment quality in the Yukon River basin, Alaska, during water year 2003 Water and sediment quality in the Yukon River basin, Alaska, during water year 2002 Water and Sediment Quality in the Yukon River Basin, Alaska, During Water Year 2004 Water and sediment quality in the Yukon River basin, Alaska, during water year 2004 Yukon Water An Assesment of climate Change Vulnerabilities Evidence for extreme pressure pulses in the subglacial water system Quality of Nutrient Data from Streams and Ground Water Sampled during Water Years 1992-2001 New York Water Science Center Data Program Water Data for Nisqually River at Site NR3 Water Data for Nisqually River Delta at Site D1 Yukon Snow Survey Bulletin & Water Supply Forecast Are the western water shrew (Sorex navigator) and American water shrew (Sorex palustris) morphologically distinct? USGS New England Water Science Center Water Data for Nisqually River Delta at Site D1 Water Data for Nisqually River at Site NR3 Evidence for extreme pressure pulses in the subglacial water system Water Resources of Monroe County, New York Natural attenuation of chlorinated solvents in subarctic ground water Using Water Isotope Tracers to Investigate Past and Present Water Balance Conditions in the Old Crow Flats, Yukon Territory Yukon Snow Survey Bulletin & Water Supply Forecast USGS New England Water Science Center Ground-water age and its water-management implications, Cook Inlet Basin, Alaska Quality of Nutrient Data from Streams and Ground Water Sampled during Water Years 1992-2001 Soil and Low-Ionic-Strength Water Quality Laboratory New York Water Science Center Data Program South East Water Census Sites Yukon Water An Assesment of climate Change Vulnerabilities Are the western water shrew (Sorex navigator) and American water shrew (Sorex palustris) morphologically distinct? Water and sediment quality in the Yukon River basin, Alaska, during water year 2003 Water and sediment quality in the Yukon River basin, Alaska, during water year 2002 Water and Sediment Quality in the Yukon River Basin, Alaska, During Water Year 2004 Water and sediment quality in the Yukon River basin, Alaska, during water year 2004