Donald O Rosenberry (Former Employee)
Science and Products
Filter Total Items: 132
Tracking tracer breakthrough in the hyporheic zone using time‐lapse DC resistivity, Crabby Creek, Pennsylvania
Characterization of the hyporheic zone is of critical importance for understanding stream ecology, contaminant transport, and groundwater‐surface water interaction. A salt water tracer test was used to probe the hyporheic zone of a recently re‐engineered portion of Crabby Creek, a stream located near Philadelphia, PA. The tracer solution was tracked through a 13.5 meter segment of the stream using
Authors
Jonathan E. Nyquist, Laura Toran, Allison C. Fang, Robert J. Ryan, Donald O. Rosenberry
Effect of surficial disturbance on exchange between groundwater and surface water in nearshore margins
Low‐permeability sediments situated at or near the sediment‐water interface can influence seepage in nearshore margins, particularly where wave energy or currents are minimal. Seepage meters were used to quantify flow across the sediment‐water interface at two lakes where flow was from surface water to groundwater. Disturbance of the sediment bed substantially increased seepage through the sandy s
Authors
Donald O. Rosenberry, Laura Toran, Jonathan E. Nyquist
Hydrologic processes and the water budget: Chapter 2
This chapter focuses on the hydrological setting of Mirror Lake and its water budget. It first describes the glacial deposits and bedrock topography in the Mirror Lake area. It then provides an overview of the hydrologic processes associated with Mirror Lake and examines the field and analytical methods used to determine its water budget. It presents results from the hydrologic studies, which are
Authors
Donald O. Rosenberry, Thomas C. Winter
Evaluation of methods and uncertainties in the water budget
Water budget studies of Mirror Lake aim to measure hydrologic components interacting with the lake as accurately as possible. However, measurements of water budget components are subject to some degree of uncertainty. This chapter describes the methods used to quantify water budget components of Mirror Lake in detail. It examines uncertainties in precipitation values, monthly evaporation, water fl
Authors
Thomas C. Winter, Donald O. Rosenberry
Improving conceptual models of water and carbon transfer through peat
Northern peatlands store 500 × 1015 g of organic carbon and are very sensitive to climate change. There is a strong conceptual model of sources, sinks, and pathways of carbon within peatlands, but challenges remain both in understanding the hydrogeology and the linkages between carbon cycling and peat pore water flow. In this chapter, research findings from the glacial Lake Agassiz peatlands are u
Authors
Jeffery M. McKenzie, Donald I. Siegel, Donald O. Rosenberry
Assessment of electrical resistivity method to map groundwater seepage zones in heterogeneous sediments
Underwater electrical‐resistivity data were collected along the southwest shore of Mirror Lake, NH, as part of a multi‐year assessment of the utility of geophysics for mapping groundwater seepage beneath lakes. We found that resistivity could locate shoreline sections where water is seeping out of the lake. A resistivity line along the lake bottom starting 27‐m off shore and continuing 27‐m on sho
Authors
Michael P. Gagliano, Jonathan E. Nyquist, Laura Toran, Donald O. Rosenberry
Effects of sediment transport and seepage direction on hydraulic properties at the sediment-water interface of hyporheic settings
Relations between seepage flux and hydraulic properties are difficult to quantify in fluvial settings because of the difficulty in measuring these variables in situ. Tests conducted in a 1.5-m diameter by 1.5-m tall sediment-filled tank indicate that hydraulic gradient increased and hydraulic conductivity (K) decreased following the onset of downward seepage but both parameters were little changed
Authors
D. O. Rosenberry, J. Pitlick
Hydrologic support of carbon dioxide flux revealed by whole-lake carbon budgets
Freshwater lakes are an important component of the global carbon cycle through both organic carbon (OC) sequestration and carbon dioxide (CO 2) emission. Most lakes have a net annual loss of CO2 to the atmosphere and substantial current evidence suggests that biologic mineralization of allochthonous OC maintains this flux. Because net CO 2 flux to the atmosphere implies net mineralization of OC wi
Authors
E.G. Stets, Robert G. Striegl, G. R. Aiken, D. O. Rosenberry, T. C. Winter
Local-scale variability of seepage and hydraulic conductivity in a shallow gravel-bed river
Seepage rate and direction measured with a seepage metre modified for use in flowing water were greatly variable along a 300-m reach of a shallow, gravel-bed river and depended primarily on the local-scale bed topography. The median value of seepage measured at 24 locations was 24 cm/day, but seepage measured at specific sites ranged from -340 to +237 cm/day. Seepage also varied substantially over
Authors
D. O. Rosenberry, J. Pitlick
Field Techniques for Estimating Water Fluxes Between Surface Water and Ground Water
This report focuses on measuring the flow of water across the interface between surface water and ground water, rather than the hydrogeological or geochemical processes that occur at or near this interface. The methods, however, that use hydrogeological and geochemical evidence to quantify water fluxes are described herein. This material is presented as a guide for those who have to examine the in
Authors
Donald O. Rosenberry, James W. LaBaugh
Estimates of Nutrient Loading by Ground-Water Discharge into the Lynch Cove Area of Hood Canal, Washington
Low dissolved oxygen concentrations in the waters of Hood Canal threaten marine life in late summer and early autumn. Oxygen depletion in the deep layers and landward reaches of the canal is caused by decomposition of excess phytoplankton biomass, which feeds on nutrients (primarily nitrogen compounds) that enter the canal from various sources, along with stratification of the water column that pr
Authors
F. William Simonds, Peter W. Swarzenski, Donald O. Rosenberry, Christopher D. Reich, Anthony J. Paulson
The effect of river regulations and ground-water discharge on the ecology of the riparian corridors of the Colorado River and tributaries
No abstract available.
Authors
Donald O. Rosenberry
Science and Products
Filter Total Items: 132
Tracking tracer breakthrough in the hyporheic zone using time‐lapse DC resistivity, Crabby Creek, Pennsylvania
Characterization of the hyporheic zone is of critical importance for understanding stream ecology, contaminant transport, and groundwater‐surface water interaction. A salt water tracer test was used to probe the hyporheic zone of a recently re‐engineered portion of Crabby Creek, a stream located near Philadelphia, PA. The tracer solution was tracked through a 13.5 meter segment of the stream using
Authors
Jonathan E. Nyquist, Laura Toran, Allison C. Fang, Robert J. Ryan, Donald O. Rosenberry
Effect of surficial disturbance on exchange between groundwater and surface water in nearshore margins
Low‐permeability sediments situated at or near the sediment‐water interface can influence seepage in nearshore margins, particularly where wave energy or currents are minimal. Seepage meters were used to quantify flow across the sediment‐water interface at two lakes where flow was from surface water to groundwater. Disturbance of the sediment bed substantially increased seepage through the sandy s
Authors
Donald O. Rosenberry, Laura Toran, Jonathan E. Nyquist
Hydrologic processes and the water budget: Chapter 2
This chapter focuses on the hydrological setting of Mirror Lake and its water budget. It first describes the glacial deposits and bedrock topography in the Mirror Lake area. It then provides an overview of the hydrologic processes associated with Mirror Lake and examines the field and analytical methods used to determine its water budget. It presents results from the hydrologic studies, which are
Authors
Donald O. Rosenberry, Thomas C. Winter
Evaluation of methods and uncertainties in the water budget
Water budget studies of Mirror Lake aim to measure hydrologic components interacting with the lake as accurately as possible. However, measurements of water budget components are subject to some degree of uncertainty. This chapter describes the methods used to quantify water budget components of Mirror Lake in detail. It examines uncertainties in precipitation values, monthly evaporation, water fl
Authors
Thomas C. Winter, Donald O. Rosenberry
Improving conceptual models of water and carbon transfer through peat
Northern peatlands store 500 × 1015 g of organic carbon and are very sensitive to climate change. There is a strong conceptual model of sources, sinks, and pathways of carbon within peatlands, but challenges remain both in understanding the hydrogeology and the linkages between carbon cycling and peat pore water flow. In this chapter, research findings from the glacial Lake Agassiz peatlands are u
Authors
Jeffery M. McKenzie, Donald I. Siegel, Donald O. Rosenberry
Assessment of electrical resistivity method to map groundwater seepage zones in heterogeneous sediments
Underwater electrical‐resistivity data were collected along the southwest shore of Mirror Lake, NH, as part of a multi‐year assessment of the utility of geophysics for mapping groundwater seepage beneath lakes. We found that resistivity could locate shoreline sections where water is seeping out of the lake. A resistivity line along the lake bottom starting 27‐m off shore and continuing 27‐m on sho
Authors
Michael P. Gagliano, Jonathan E. Nyquist, Laura Toran, Donald O. Rosenberry
Effects of sediment transport and seepage direction on hydraulic properties at the sediment-water interface of hyporheic settings
Relations between seepage flux and hydraulic properties are difficult to quantify in fluvial settings because of the difficulty in measuring these variables in situ. Tests conducted in a 1.5-m diameter by 1.5-m tall sediment-filled tank indicate that hydraulic gradient increased and hydraulic conductivity (K) decreased following the onset of downward seepage but both parameters were little changed
Authors
D. O. Rosenberry, J. Pitlick
Hydrologic support of carbon dioxide flux revealed by whole-lake carbon budgets
Freshwater lakes are an important component of the global carbon cycle through both organic carbon (OC) sequestration and carbon dioxide (CO 2) emission. Most lakes have a net annual loss of CO2 to the atmosphere and substantial current evidence suggests that biologic mineralization of allochthonous OC maintains this flux. Because net CO 2 flux to the atmosphere implies net mineralization of OC wi
Authors
E.G. Stets, Robert G. Striegl, G. R. Aiken, D. O. Rosenberry, T. C. Winter
Local-scale variability of seepage and hydraulic conductivity in a shallow gravel-bed river
Seepage rate and direction measured with a seepage metre modified for use in flowing water were greatly variable along a 300-m reach of a shallow, gravel-bed river and depended primarily on the local-scale bed topography. The median value of seepage measured at 24 locations was 24 cm/day, but seepage measured at specific sites ranged from -340 to +237 cm/day. Seepage also varied substantially over
Authors
D. O. Rosenberry, J. Pitlick
Field Techniques for Estimating Water Fluxes Between Surface Water and Ground Water
This report focuses on measuring the flow of water across the interface between surface water and ground water, rather than the hydrogeological or geochemical processes that occur at or near this interface. The methods, however, that use hydrogeological and geochemical evidence to quantify water fluxes are described herein. This material is presented as a guide for those who have to examine the in
Authors
Donald O. Rosenberry, James W. LaBaugh
Estimates of Nutrient Loading by Ground-Water Discharge into the Lynch Cove Area of Hood Canal, Washington
Low dissolved oxygen concentrations in the waters of Hood Canal threaten marine life in late summer and early autumn. Oxygen depletion in the deep layers and landward reaches of the canal is caused by decomposition of excess phytoplankton biomass, which feeds on nutrients (primarily nitrogen compounds) that enter the canal from various sources, along with stratification of the water column that pr
Authors
F. William Simonds, Peter W. Swarzenski, Donald O. Rosenberry, Christopher D. Reich, Anthony J. Paulson
The effect of river regulations and ground-water discharge on the ecology of the riparian corridors of the Colorado River and tributaries
No abstract available.
Authors
Donald O. Rosenberry