Kevin A Oberg (Former Employee)
Science and Products
Filter Total Items: 65
Improvements to estimate ADCP uncertainty sources for discharge measurements Improvements to estimate ADCP uncertainty sources for discharge measurements
The use of moving boat ADCPs (Acoustic Doppler Current Profilers) for discharge measurements requires identification of the sources and magnitude of uncertainty to ensure accurate measurements. Recently, a tool known as QUant was developed to estimate the contribution to the uncertainty estimates for each transect of moving-boat ADCP discharge measurements, by varying different sampling
Authors
Jose M. Diaz Lozada, Carlos M. Garcia, Kevin Oberg, Thomas M. Over, Federico Flores Nieto
Dynamic selection of exposure time for turbulent flow measurements Dynamic selection of exposure time for turbulent flow measurements
The selection of optimum sampling configurations to measure the aspects of turbulent flow of water depends on the variable being measured, the applied measurement technique, the degree of environmental noise, and flow characteristics in and near the sampling location. This work presents a method to dynamically select the exposure time (SET) during the flow-velocity measurement at each...
Authors
Jose M. Diaz Lozada, Carlos M. Garcia, Graciela Scacchi, Kevin Oberg
Comparing discharge computation methods in the Great Lakes connecting channels Comparing discharge computation methods in the Great Lakes connecting channels
Records of discharge for the connecting channels within the Great Lakes Basin are important to national governments of Canada and the United States and the various water management agencies and users in the basin. For more than 100 years, the official discharge records for the St. Clair and Detroit Rivers, two connecting channels within the Great Lakes Basin, have been computed using...
Authors
Aaron F Thompson, Sandrina N Rodrigues, Jeanette C Fooks, Kevin Oberg, Tim J Calappi
Dunes in the world's big rivers are characterized by low-angle lee-side slopes and a complex shape Dunes in the world's big rivers are characterized by low-angle lee-side slopes and a complex shape
Dunes form critical agents of bedload transport in all of the world’s big rivers, and constitute appreciable sources of bed roughness and flow resistance. Dunes also generate stratification that is the most common depositional feature of ancient riverine sediments. However, current models of dune dynamics and stratification are conditioned by bedform geometries observed in small rivers...
Authors
Julia Cisneros, Jim L. Best, Thaienne van Dijk, Renato Paes de Almeida, Mario Amsler, Justin A. Boldt, Bernardo Freitas, Cristiano Galeazzi, Richard J. Huizinga, Marco Ianniruberto, Hongbo Ma, Jeff Nittrouer, Kevin Oberg, Oscar Orfeo, Daniel Parsons, Ricardo N. Szupiany, Ping Wang, Yuanfeng Zhang
Estimating sand concentrations using ADCP‐based acoustic inversion in a large fluvial system characterized by bi‐modal suspended‐sediment distributions Estimating sand concentrations using ADCP‐based acoustic inversion in a large fluvial system characterized by bi‐modal suspended‐sediment distributions
Quantifying sediment flux within rivers is a challenge for many disciplines due, mainly, to difficulties inherent to traditional sediment sampling methods. These methods are operationally complex, high cost, and high risk. Additionally, the resulting data provide a low spatial and temporal resolution estimate of the total sediment flux, which has impeded advances in the understanding of...
Authors
Ricardo N. Szupiany, Cecilia Lopez Weibel, Massimo Guerrero, Francisco Latosinski, Molly S. Wood, Lucas Dominguez Ruben, Kevin Oberg
Validation of streamflow measurements made with M9 and RiverRay acoustic Doppler current profilers Validation of streamflow measurements made with M9 and RiverRay acoustic Doppler current profilers
The U.S. Geological Survey (USGS) Office of Surface Water (OSW) previously validated the use of Teledyne RD Instruments (TRDI) Rio Grande (in 2007), StreamPro (in 2006), and Broadband (in 1996) acoustic Doppler current profilers (ADCPs) for streamflow (discharge) measurements made by the USGS. Two new ADCPs, the SonTek M9 and the TRDI RiverRay, were first used in the USGS Water Mission...
Authors
Justin A. Boldt, Kevin A. Oberg
Data for the development of a new method for dynamically estimating exposure time for turbulent flow measurements Data for the development of a new method for dynamically estimating exposure time for turbulent flow measurements
The mission of the U.S. Geological Survey (USGS) involves providing reliable, impartial, and timely information that is needed to understand the Nation?s water resource. New techniques that aid in achieving this mission are important, especially those that allow USGS to do so more accurately or cost-effectively. To this end, a new method for selecting the optimum exposure time for...
Acoustic Doppler current profiler discharge measurement data used for QUant multiple-transect uncertainty analysis Acoustic Doppler current profiler discharge measurement data used for QUant multiple-transect uncertainty analysis
Acoustic Doppler current profiler (ADCP) discharge measurement data were collected and analyzed for use in developing an operational uncertainty analysis tool known as QUant (Moore and others, 2016). These ADCP measurements were originally collected in the United States, Canada, and New Zealand as a part of research conducted to validate ADCP discharge measurements made with Teledyne RD...
Science and Products
Filter Total Items: 65
Improvements to estimate ADCP uncertainty sources for discharge measurements Improvements to estimate ADCP uncertainty sources for discharge measurements
The use of moving boat ADCPs (Acoustic Doppler Current Profilers) for discharge measurements requires identification of the sources and magnitude of uncertainty to ensure accurate measurements. Recently, a tool known as QUant was developed to estimate the contribution to the uncertainty estimates for each transect of moving-boat ADCP discharge measurements, by varying different sampling
Authors
Jose M. Diaz Lozada, Carlos M. Garcia, Kevin Oberg, Thomas M. Over, Federico Flores Nieto
Dynamic selection of exposure time for turbulent flow measurements Dynamic selection of exposure time for turbulent flow measurements
The selection of optimum sampling configurations to measure the aspects of turbulent flow of water depends on the variable being measured, the applied measurement technique, the degree of environmental noise, and flow characteristics in and near the sampling location. This work presents a method to dynamically select the exposure time (SET) during the flow-velocity measurement at each...
Authors
Jose M. Diaz Lozada, Carlos M. Garcia, Graciela Scacchi, Kevin Oberg
Comparing discharge computation methods in the Great Lakes connecting channels Comparing discharge computation methods in the Great Lakes connecting channels
Records of discharge for the connecting channels within the Great Lakes Basin are important to national governments of Canada and the United States and the various water management agencies and users in the basin. For more than 100 years, the official discharge records for the St. Clair and Detroit Rivers, two connecting channels within the Great Lakes Basin, have been computed using...
Authors
Aaron F Thompson, Sandrina N Rodrigues, Jeanette C Fooks, Kevin Oberg, Tim J Calappi
Dunes in the world's big rivers are characterized by low-angle lee-side slopes and a complex shape Dunes in the world's big rivers are characterized by low-angle lee-side slopes and a complex shape
Dunes form critical agents of bedload transport in all of the world’s big rivers, and constitute appreciable sources of bed roughness and flow resistance. Dunes also generate stratification that is the most common depositional feature of ancient riverine sediments. However, current models of dune dynamics and stratification are conditioned by bedform geometries observed in small rivers...
Authors
Julia Cisneros, Jim L. Best, Thaienne van Dijk, Renato Paes de Almeida, Mario Amsler, Justin A. Boldt, Bernardo Freitas, Cristiano Galeazzi, Richard J. Huizinga, Marco Ianniruberto, Hongbo Ma, Jeff Nittrouer, Kevin Oberg, Oscar Orfeo, Daniel Parsons, Ricardo N. Szupiany, Ping Wang, Yuanfeng Zhang
Estimating sand concentrations using ADCP‐based acoustic inversion in a large fluvial system characterized by bi‐modal suspended‐sediment distributions Estimating sand concentrations using ADCP‐based acoustic inversion in a large fluvial system characterized by bi‐modal suspended‐sediment distributions
Quantifying sediment flux within rivers is a challenge for many disciplines due, mainly, to difficulties inherent to traditional sediment sampling methods. These methods are operationally complex, high cost, and high risk. Additionally, the resulting data provide a low spatial and temporal resolution estimate of the total sediment flux, which has impeded advances in the understanding of...
Authors
Ricardo N. Szupiany, Cecilia Lopez Weibel, Massimo Guerrero, Francisco Latosinski, Molly S. Wood, Lucas Dominguez Ruben, Kevin Oberg
Validation of streamflow measurements made with M9 and RiverRay acoustic Doppler current profilers Validation of streamflow measurements made with M9 and RiverRay acoustic Doppler current profilers
The U.S. Geological Survey (USGS) Office of Surface Water (OSW) previously validated the use of Teledyne RD Instruments (TRDI) Rio Grande (in 2007), StreamPro (in 2006), and Broadband (in 1996) acoustic Doppler current profilers (ADCPs) for streamflow (discharge) measurements made by the USGS. Two new ADCPs, the SonTek M9 and the TRDI RiverRay, were first used in the USGS Water Mission...
Authors
Justin A. Boldt, Kevin A. Oberg
Data for the development of a new method for dynamically estimating exposure time for turbulent flow measurements Data for the development of a new method for dynamically estimating exposure time for turbulent flow measurements
The mission of the U.S. Geological Survey (USGS) involves providing reliable, impartial, and timely information that is needed to understand the Nation?s water resource. New techniques that aid in achieving this mission are important, especially those that allow USGS to do so more accurately or cost-effectively. To this end, a new method for selecting the optimum exposure time for...
Acoustic Doppler current profiler discharge measurement data used for QUant multiple-transect uncertainty analysis Acoustic Doppler current profiler discharge measurement data used for QUant multiple-transect uncertainty analysis
Acoustic Doppler current profiler (ADCP) discharge measurement data were collected and analyzed for use in developing an operational uncertainty analysis tool known as QUant (Moore and others, 2016). These ADCP measurements were originally collected in the United States, Canada, and New Zealand as a part of research conducted to validate ADCP discharge measurements made with Teledyne RD...
*Disclaimer: Listing outside positions with professional scientific organizations on this Staff Profile are for informational purposes only and do not constitute an endorsement of those professional scientific organizations or their activities by the USGS, Department of the Interior, or U.S. Government