Elizabeth Nystrom
Elizabeth (Liz) Nystrom is a Hydrologist with the New York Water Science Center.
Liz began her career with the USGS in 1999 as a student in the Illinois District working with acoustic Doppler current profilers. Her research interests are broad and are currently focused on research to operations, and include using cameras and imagery for hydrologic measurements, harmful algal blooms, hydraulic modeling, inundation mapping, bathymetry, and hydroacoustics.
Education:
2001 - M.S., Civil and Environmental Engineering, Environmental Hydrology and Hydraulic Engineering, University of Illinois
1999 - B.S., Civil and Environmental Engineering, Worcester Polytechnic Institute
Science and Products
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Temporal changes in surface-water insecticide concentrations after the phaseout of diazinon and chlorpyrifos Temporal changes in surface-water insecticide concentrations after the phaseout of diazinon and chlorpyrifos
The recent (late 2001) federally mandated phaseout of diazinon and chlorpyrifos insecticide use in outdoor urban settings has resulted in a rapid decline in concentrations of these insecticides in urban streams and rivers in the northeastern and midwestern United States. Assessment of temporal insecticide trends at 20 sites showed that significant step decreases in diazinon...
Authors
P. J. Phillips, S.W. Ator, E.A. Nystrom
Evaluation of mean velocity and turbulence measurements with ADCPs Evaluation of mean velocity and turbulence measurements with ADCPs
To test the ability of acoustic Doppler current profilers (ADCPs) to measure turbulence, profiles measured with two pulse-to-pulse coherent ADCPs in a laboratory flume were compared to profiles measured with an acoustic Doppler velocimeter, and time series measured in the acoustic beam of the ADCPs were examined. A four-beam ADCP was used at a downstream station, while a three-beam ADCP...
Authors
E.A. Nystrom, C.R. Rehmann, K. A. Oberg
Ground-water quality in the Lake Champlain basin, New York, 2004 Ground-water quality in the Lake Champlain basin, New York, 2004
Water samples were collected from 11 public-supply wells and 11 private domestic wells in the Lake Champlain basin in New York during the fall of 2004 to characterize the chemical quality of ground water. Wells were selected for sampling based on location and focused on areas of greatest ground-water use. Samples were analyzed for 219 physical properties and constituents, including...
Authors
Elizabeth A. Nystrom
Use of an ADCP to compute suspended-sediment discharge in the tidal Hudson River, New York Use of an ADCP to compute suspended-sediment discharge in the tidal Hudson River, New York
Acoustic Doppler current profilers (ADCPs) can provide data needed for computation of suspended-sediment discharge in complex river systems, such as tidal rivers, in which conventional methods of collecting time-series data on suspended-sediment concentration (SSC) and water discharge are not feasible. Although ADCPs are not designed to measure SSC, ADCP data can be used as a surrogate...
Authors
Gary R. Wall, Elizabeth A. Nystrom, Simon Litten
Measurement of Turbulence with Acoustic Doppler Current Profilers - Sources of Error and Laboratory Results Measurement of Turbulence with Acoustic Doppler Current Profilers - Sources of Error and Laboratory Results
Acoustic Doppler current profilers (ADCPs) provide a promising method for measuring surface-water turbulence because they can provide data from a large spatial range in a relatively short time with relative ease. Some potential sources of errors in turbulence measurements made with ADCPs include inaccuracy of Doppler-shift measurements, poor temporal and spatial measurement resolution...
Authors
E.A. Nystrom, K. A. Oberg, C.R. Rehmann
Science and Products
Filter Total Items: 13
Filter Total Items: 17
No Result Found
Filter Total Items: 35
Temporal changes in surface-water insecticide concentrations after the phaseout of diazinon and chlorpyrifos Temporal changes in surface-water insecticide concentrations after the phaseout of diazinon and chlorpyrifos
The recent (late 2001) federally mandated phaseout of diazinon and chlorpyrifos insecticide use in outdoor urban settings has resulted in a rapid decline in concentrations of these insecticides in urban streams and rivers in the northeastern and midwestern United States. Assessment of temporal insecticide trends at 20 sites showed that significant step decreases in diazinon...
Authors
P. J. Phillips, S.W. Ator, E.A. Nystrom
Evaluation of mean velocity and turbulence measurements with ADCPs Evaluation of mean velocity and turbulence measurements with ADCPs
To test the ability of acoustic Doppler current profilers (ADCPs) to measure turbulence, profiles measured with two pulse-to-pulse coherent ADCPs in a laboratory flume were compared to profiles measured with an acoustic Doppler velocimeter, and time series measured in the acoustic beam of the ADCPs were examined. A four-beam ADCP was used at a downstream station, while a three-beam ADCP...
Authors
E.A. Nystrom, C.R. Rehmann, K. A. Oberg
Ground-water quality in the Lake Champlain basin, New York, 2004 Ground-water quality in the Lake Champlain basin, New York, 2004
Water samples were collected from 11 public-supply wells and 11 private domestic wells in the Lake Champlain basin in New York during the fall of 2004 to characterize the chemical quality of ground water. Wells were selected for sampling based on location and focused on areas of greatest ground-water use. Samples were analyzed for 219 physical properties and constituents, including...
Authors
Elizabeth A. Nystrom
Use of an ADCP to compute suspended-sediment discharge in the tidal Hudson River, New York Use of an ADCP to compute suspended-sediment discharge in the tidal Hudson River, New York
Acoustic Doppler current profilers (ADCPs) can provide data needed for computation of suspended-sediment discharge in complex river systems, such as tidal rivers, in which conventional methods of collecting time-series data on suspended-sediment concentration (SSC) and water discharge are not feasible. Although ADCPs are not designed to measure SSC, ADCP data can be used as a surrogate...
Authors
Gary R. Wall, Elizabeth A. Nystrom, Simon Litten
Measurement of Turbulence with Acoustic Doppler Current Profilers - Sources of Error and Laboratory Results Measurement of Turbulence with Acoustic Doppler Current Profilers - Sources of Error and Laboratory Results
Acoustic Doppler current profilers (ADCPs) provide a promising method for measuring surface-water turbulence because they can provide data from a large spatial range in a relatively short time with relative ease. Some potential sources of errors in turbulence measurements made with ADCPs include inaccuracy of Doppler-shift measurements, poor temporal and spatial measurement resolution...
Authors
E.A. Nystrom, K. A. Oberg, C.R. Rehmann