Kevin A Oberg (Former Employee)
Science and Products
Filter Total Items: 65
Bed morphology, flow structure, and sediment transport at the outlet of Lake Huron and in the upper St. Clair River Bed morphology, flow structure, and sediment transport at the outlet of Lake Huron and in the upper St. Clair River
An integrated multibeam echo sounder and acoustic Doppler current profiler field survey was conducted in July 2008 to investigate the morphodynamics of the St. Clair River at the outlet of Lake Huron. The principal morphological features of the upper St. Clair River included flow-transverse bedforms that appear weakly mobile, erosive bedforms in cohesive muds, thin non-cohesive veneers...
Authors
J. A. Czuba, J.L. Best, K. A. Oberg, D.R. Parsons, P.R. Jackson, M.H. Garcia, P. Ashmore
Discussion of Near-Transducer Errors in ADCP Measurements: Experimental Findings by Marian Muste, Dongsu Kim, and Juan A Gonzalez-Castro Discussion of Near-Transducer Errors in ADCP Measurements: Experimental Findings by Marian Muste, Dongsu Kim, and Juan A Gonzalez-Castro
No abstract available.
Authors
David S. Mueller, Kevin A. Oberg
A new methodology for the quantitative visualization of coherent flow structures in alluvial channels using multibeam echo-sounding (MBES) A new methodology for the quantitative visualization of coherent flow structures in alluvial channels using multibeam echo-sounding (MBES)
In order to investigate the interactions between turbulence and suspended sediment transport in natural aqueous environments, we ideally require a technique that allows simultaneous measurement of fluid velocity and sediment concentration for the whole flow field. Here, we report on development of a methodology using the water column acoustic backscatter signal from a multibeam echo...
Authors
Jim Best, Stephen Simmons, Daniel Parsons, Kevin Oberg, Jonathan Czuba, Chris Malzone
Velocity mapping in the Lower Congo River: A first look at the unique bathymetry and hydrodynamics of Bulu Reach Velocity mapping in the Lower Congo River: A first look at the unique bathymetry and hydrodynamics of Bulu Reach
The lower Congo River is one of the deepest, most powerful, and most biologically diverse stretches of river on Earth. The river’s 270 m decent from Malebo Pool though the gorges of the Crystal Mountains to the Atlantic Ocean (498 km downstream) is riddled with rapids, cataracts, and deep pools. Much of the lower Congo is a mystery from a hydraulics perspective. However, this stretch of...
Authors
P. Ryan Jackson, Kevin A. Oberg, Ned Gardiner, John Shelton
Temporal characteristics of coherent flow structures generated over alluvial sand dunes, Mississippi River, revealed by acoustic doppler current profiling and multibeam echo sounding Temporal characteristics of coherent flow structures generated over alluvial sand dunes, Mississippi River, revealed by acoustic doppler current profiling and multibeam echo sounding
This paper investigates the flow in the lee of a large sand dune located at the confluence of the Mississippi and Missouri Rivers, USA. Stationary profiles collected from an anchored boat using an acoustic Doppler current profiler (ADCP) were georeferenced with data from a real-time kinematic differential global positioning system. A multibeam echo sounder was used to map the bathymetry...
Authors
John A. Czuba, Kevin A. Oberg, Jim L. Best, Daniel R. Parsons, S. M. Simmons, K. K. Johnson, C. Malzone
Discharge and other hydraulic measurements for characterizing the hydraulics of Lower Congo River Discharge and other hydraulic measurements for characterizing the hydraulics of Lower Congo River
The first direct measurements of discharge of the Lower Congo River below Malebo Pool and upstream from Kinganga, Democratic Republic of Congo (DRC) were made in July 2008 using acoustic Doppler current profilers, differential GPS, and echo sounders. These measurements were made in support of research that is attempting to understand the distribution of fish species in the Lower Congo...
Authors
Kevin Oberg, John M. Shelton, Ned Gardiner, P. Ryan Jackson
Science and Products
Filter Total Items: 65
Bed morphology, flow structure, and sediment transport at the outlet of Lake Huron and in the upper St. Clair River Bed morphology, flow structure, and sediment transport at the outlet of Lake Huron and in the upper St. Clair River
An integrated multibeam echo sounder and acoustic Doppler current profiler field survey was conducted in July 2008 to investigate the morphodynamics of the St. Clair River at the outlet of Lake Huron. The principal morphological features of the upper St. Clair River included flow-transverse bedforms that appear weakly mobile, erosive bedforms in cohesive muds, thin non-cohesive veneers...
Authors
J. A. Czuba, J.L. Best, K. A. Oberg, D.R. Parsons, P.R. Jackson, M.H. Garcia, P. Ashmore
Discussion of Near-Transducer Errors in ADCP Measurements: Experimental Findings by Marian Muste, Dongsu Kim, and Juan A Gonzalez-Castro Discussion of Near-Transducer Errors in ADCP Measurements: Experimental Findings by Marian Muste, Dongsu Kim, and Juan A Gonzalez-Castro
No abstract available.
Authors
David S. Mueller, Kevin A. Oberg
A new methodology for the quantitative visualization of coherent flow structures in alluvial channels using multibeam echo-sounding (MBES) A new methodology for the quantitative visualization of coherent flow structures in alluvial channels using multibeam echo-sounding (MBES)
In order to investigate the interactions between turbulence and suspended sediment transport in natural aqueous environments, we ideally require a technique that allows simultaneous measurement of fluid velocity and sediment concentration for the whole flow field. Here, we report on development of a methodology using the water column acoustic backscatter signal from a multibeam echo...
Authors
Jim Best, Stephen Simmons, Daniel Parsons, Kevin Oberg, Jonathan Czuba, Chris Malzone
Velocity mapping in the Lower Congo River: A first look at the unique bathymetry and hydrodynamics of Bulu Reach Velocity mapping in the Lower Congo River: A first look at the unique bathymetry and hydrodynamics of Bulu Reach
The lower Congo River is one of the deepest, most powerful, and most biologically diverse stretches of river on Earth. The river’s 270 m decent from Malebo Pool though the gorges of the Crystal Mountains to the Atlantic Ocean (498 km downstream) is riddled with rapids, cataracts, and deep pools. Much of the lower Congo is a mystery from a hydraulics perspective. However, this stretch of...
Authors
P. Ryan Jackson, Kevin A. Oberg, Ned Gardiner, John Shelton
Temporal characteristics of coherent flow structures generated over alluvial sand dunes, Mississippi River, revealed by acoustic doppler current profiling and multibeam echo sounding Temporal characteristics of coherent flow structures generated over alluvial sand dunes, Mississippi River, revealed by acoustic doppler current profiling and multibeam echo sounding
This paper investigates the flow in the lee of a large sand dune located at the confluence of the Mississippi and Missouri Rivers, USA. Stationary profiles collected from an anchored boat using an acoustic Doppler current profiler (ADCP) were georeferenced with data from a real-time kinematic differential global positioning system. A multibeam echo sounder was used to map the bathymetry...
Authors
John A. Czuba, Kevin A. Oberg, Jim L. Best, Daniel R. Parsons, S. M. Simmons, K. K. Johnson, C. Malzone
Discharge and other hydraulic measurements for characterizing the hydraulics of Lower Congo River Discharge and other hydraulic measurements for characterizing the hydraulics of Lower Congo River
The first direct measurements of discharge of the Lower Congo River below Malebo Pool and upstream from Kinganga, Democratic Republic of Congo (DRC) were made in July 2008 using acoustic Doppler current profilers, differential GPS, and echo sounders. These measurements were made in support of research that is attempting to understand the distribution of fish species in the Lower Congo...
Authors
Kevin Oberg, John M. Shelton, Ned Gardiner, P. Ryan Jackson
*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