Robert Holmes, Jr., Ph.D., P.E., F.ASCE, F.EWRI, D.WRE (Former Employee)
Science and Products
Filter Total Items: 104
Case study for delineating a contributing area to a well in a fractured siliciclastic-bedrock aquifer near Lansdale, Pennsylvania Case study for delineating a contributing area to a well in a fractured siliciclastic-bedrock aquifer near Lansdale, Pennsylvania
A supply well used by the North Penn Water Authority near Lansdale, Pa., was selected as a case study for delineating a contributing area in a fractured siliciclastic-bedrock aquifer. The study emphasized the importance of refining the understanding of factors that control ground-water movement to the well by conducting (1) geophysical logging and flow measurements, (2) ground-water...
Authors
Gary J. Barton, Dennis W. Risser, Daniel G. Galeone, Daniel J. Goode
The Great Flood of 1993 on the Upper Mississippi River—10 years later The Great Flood of 1993 on the Upper Mississippi River—10 years later
Ten years ago, the upper Mississippi River Basin in the Midwestern United States experienced the costliest flood in the history of the United States. The flood came to be known as “ The Great Flood of 1993.”
Authors
Gary P. Johnson, Robert R. Holmes, Loyd A. Waite
Interpretation of borehole geophysical logs, aquifer-isolation tests, and water quality, supply wells 1 and 2, Willow Grove Naval Air Station/Joint Reserve Base, Horsham Township, Montgomery County, Pennsylvania Interpretation of borehole geophysical logs, aquifer-isolation tests, and water quality, supply wells 1 and 2, Willow Grove Naval Air Station/Joint Reserve Base, Horsham Township, Montgomery County, Pennsylvania
Ground water pumped from supply wells 1 and 2 on the Willow Grove Naval Air Station/Joint Reserve Base (NAS/JRB) provides water for use at the base, including potable water for drinking. The supply wells have been contaminated by volatile organic compounds (VOC's), particularly trichloroethylene (TCE) and tetrachloroethylene (PCE), and the water is treated to remove the VOC's. The Willow...
Authors
Ronald A. Sloto, Daniel J. Goode, Steven M. Frasch
Velocity and Sediment Concentration Measurements over Bedforms in Sand-Bed Rivers Velocity and Sediment Concentration Measurements over Bedforms in Sand-Bed Rivers
Bedforms often are present on the bed of alluvial sand-bed rivers. Bedforms, such as dunes, impact the flow field. In this field study, velocity and suspended-sediment concentration measurements were made longitudinally along a dune field in large (5-15 meters deep) alluvial sand-bed rivers. The velocity and suspended-sediment concentration data was collected using an acoustic Doppler...
Authors
Robert R. Holmes, M.H. Garcia
Introduction to field methods for hydrologic and environmental studies Introduction to field methods for hydrologic and environmental studies
No abstract available.
Authors
Robert R. Holmes, P. J. Terrio, M.A. Harris, P. C. Mills
Documentation and verification of VST2D; a model for simulating transient, Variably Saturated, coupled water-heat-solute Transport in heterogeneous, anisotropic 2-Dimensional, ground-water systems with variable fluid density Documentation and verification of VST2D; a model for simulating transient, Variably Saturated, coupled water-heat-solute Transport in heterogeneous, anisotropic 2-Dimensional, ground-water systems with variable fluid density
This report describes a model for simulating transient, Variably Saturated, coupled water-heatsolute Transport in heterogeneous, anisotropic, 2-Dimensional, ground-water systems with variable fluid density (VST2D). VST2D was developed to help understand the effects of natural and anthropogenic factors on quantity and quality of variably saturated ground-water systems. The model solves
Authors
Michael J. Friedel
Non-USGS Publications**
Watson, Chester C., Holmes, Jr., R.R., and Biedenharn, D.S..,2013, Mississippi River Streamflow Measurement Techniques at St. Louis, Missouri, Journal of Hydraulic Engineering, 139 (10), pp 1062-1070
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
Filter Total Items: 104
Case study for delineating a contributing area to a well in a fractured siliciclastic-bedrock aquifer near Lansdale, Pennsylvania Case study for delineating a contributing area to a well in a fractured siliciclastic-bedrock aquifer near Lansdale, Pennsylvania
A supply well used by the North Penn Water Authority near Lansdale, Pa., was selected as a case study for delineating a contributing area in a fractured siliciclastic-bedrock aquifer. The study emphasized the importance of refining the understanding of factors that control ground-water movement to the well by conducting (1) geophysical logging and flow measurements, (2) ground-water...
Authors
Gary J. Barton, Dennis W. Risser, Daniel G. Galeone, Daniel J. Goode
The Great Flood of 1993 on the Upper Mississippi River—10 years later The Great Flood of 1993 on the Upper Mississippi River—10 years later
Ten years ago, the upper Mississippi River Basin in the Midwestern United States experienced the costliest flood in the history of the United States. The flood came to be known as “ The Great Flood of 1993.”
Authors
Gary P. Johnson, Robert R. Holmes, Loyd A. Waite
Interpretation of borehole geophysical logs, aquifer-isolation tests, and water quality, supply wells 1 and 2, Willow Grove Naval Air Station/Joint Reserve Base, Horsham Township, Montgomery County, Pennsylvania Interpretation of borehole geophysical logs, aquifer-isolation tests, and water quality, supply wells 1 and 2, Willow Grove Naval Air Station/Joint Reserve Base, Horsham Township, Montgomery County, Pennsylvania
Ground water pumped from supply wells 1 and 2 on the Willow Grove Naval Air Station/Joint Reserve Base (NAS/JRB) provides water for use at the base, including potable water for drinking. The supply wells have been contaminated by volatile organic compounds (VOC's), particularly trichloroethylene (TCE) and tetrachloroethylene (PCE), and the water is treated to remove the VOC's. The Willow...
Authors
Ronald A. Sloto, Daniel J. Goode, Steven M. Frasch
Velocity and Sediment Concentration Measurements over Bedforms in Sand-Bed Rivers Velocity and Sediment Concentration Measurements over Bedforms in Sand-Bed Rivers
Bedforms often are present on the bed of alluvial sand-bed rivers. Bedforms, such as dunes, impact the flow field. In this field study, velocity and suspended-sediment concentration measurements were made longitudinally along a dune field in large (5-15 meters deep) alluvial sand-bed rivers. The velocity and suspended-sediment concentration data was collected using an acoustic Doppler...
Authors
Robert R. Holmes, M.H. Garcia
Introduction to field methods for hydrologic and environmental studies Introduction to field methods for hydrologic and environmental studies
No abstract available.
Authors
Robert R. Holmes, P. J. Terrio, M.A. Harris, P. C. Mills
Documentation and verification of VST2D; a model for simulating transient, Variably Saturated, coupled water-heat-solute Transport in heterogeneous, anisotropic 2-Dimensional, ground-water systems with variable fluid density Documentation and verification of VST2D; a model for simulating transient, Variably Saturated, coupled water-heat-solute Transport in heterogeneous, anisotropic 2-Dimensional, ground-water systems with variable fluid density
This report describes a model for simulating transient, Variably Saturated, coupled water-heatsolute Transport in heterogeneous, anisotropic, 2-Dimensional, ground-water systems with variable fluid density (VST2D). VST2D was developed to help understand the effects of natural and anthropogenic factors on quantity and quality of variably saturated ground-water systems. The model solves
Authors
Michael J. Friedel
Non-USGS Publications**
Watson, Chester C., Holmes, Jr., R.R., and Biedenharn, D.S..,2013, Mississippi River Streamflow Measurement Techniques at St. Louis, Missouri, Journal of Hydraulic Engineering, 139 (10), pp 1062-1070
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.