Judson W Harvey (Former Employee)
Science and Products
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Tracing sources of sulfur in the Florida Everglades Tracing sources of sulfur in the Florida Everglades
We examined concentrations and sulfur isotopic ratios (34S/32S, expressed as δ34S in parts per thousand [‰] units) of sulfate in surface water, ground water, and rain water from sites throughout the northern Everglades to establish the sources of sulfur to the ecosystem. The geochemistry of sulfur is of particular interest in the Everglades because of its link, through processes mediated...
Authors
A. L. Bates, W. H. Orem, J. W. Harvey, E.C. Spiker
Interactions between surface water and ground water and effects on mercury transport in the north-central Everglades Interactions between surface water and ground water and effects on mercury transport in the north-central Everglades
The hydrology of the north-central Everglades was altered substantially in the past century by canal dredging, land subsidence, ground-water pumping, and levee construction. Vast areas of seasonal and perennial wetlands were converted to uses for agriculture, light industry, and suburban development. As the catchment area for the Everglades decreased, so did the sources of water from...
Authors
Judson W. Harvey, Steven L. Krupa, Cynthia Gefvert, Robert H. Mooney, Jungyill Choi, Susan A. King, Jefferson B. Giddings
Quantifying groundwater discharge through fringing wetlands to estuaries: Seasonal variability, methods comparison, and implications for wetland-estuary exchange Quantifying groundwater discharge through fringing wetlands to estuaries: Seasonal variability, methods comparison, and implications for wetland-estuary exchange
Because groundwater discharge along coastal shorelines is often concentrated in zones inhabited by fringing wetlands, accurately estimating discharge is essential for understanding its effect on the function and maintenance of these ecosystems. Most previous estimates of groundwater discharge to coastal wetlands have been temporally limited and have used only a single approach to...
Authors
C.R. Tobias, J. W. Harvey, I.C. Anderson
Analysing the capabilities and limitations of tracer tests in stream-aquifer systems Analysing the capabilities and limitations of tracer tests in stream-aquifer systems
The goal of this study was to identify the limitations that apply when we couple conservative-tracer injection with reactive solute sampling to identify the transport and reaction processes active in a stream. Our methodology applies Monte Carlo uncertainty analysis to assess the ability of the tracer approach to identify the governing transport and reaction processes for a wide range of...
Authors
B.J. Wagner, J. W. Harvey
Reactive uptake of trace metals in the hyporheic zone of a mining- contaminated stream, Pinal Creek, Arizona Reactive uptake of trace metals in the hyporheic zone of a mining- contaminated stream, Pinal Creek, Arizona
Significant uptake of dissolved metals occurred by interaction of groundwater and surface water with hyporheic-zone sediments during transport in Pinal Creek, AZ. The extent of trace metal uptake was calculated by mass balance measurements made directly within the hyporheic zone. A conservative solute tracer injected into the stream was used to quantify hydrologic exchange with the...
Authors
C. C. Fuller, J. W. Harvey
Interaction between ground water and surface water in Taylor Slough and vicinity, Everglades National Park, South Florida: Study methods and appendixes Interaction between ground water and surface water in Taylor Slough and vicinity, Everglades National Park, South Florida: Study methods and appendixes
The data presented in this report are products of an investigation that quantified interactions between ground water and surface water in Taylor Slough in Everglades National Park. Determining the extent of hydrologic interactions between wetland surface water and ground water in Taylor Slough is important because the balance of freshwater flow in the lower part of the Slough is...
Authors
Judson W. Harvey, J. M. Jackson, R. H. Mooney, Jungyill Choi
Science and Products
Filter Total Items: 16
No Result Found
Filter Total Items: 121
Tracing sources of sulfur in the Florida Everglades Tracing sources of sulfur in the Florida Everglades
We examined concentrations and sulfur isotopic ratios (34S/32S, expressed as δ34S in parts per thousand [‰] units) of sulfate in surface water, ground water, and rain water from sites throughout the northern Everglades to establish the sources of sulfur to the ecosystem. The geochemistry of sulfur is of particular interest in the Everglades because of its link, through processes mediated...
Authors
A. L. Bates, W. H. Orem, J. W. Harvey, E.C. Spiker
Interactions between surface water and ground water and effects on mercury transport in the north-central Everglades Interactions between surface water and ground water and effects on mercury transport in the north-central Everglades
The hydrology of the north-central Everglades was altered substantially in the past century by canal dredging, land subsidence, ground-water pumping, and levee construction. Vast areas of seasonal and perennial wetlands were converted to uses for agriculture, light industry, and suburban development. As the catchment area for the Everglades decreased, so did the sources of water from...
Authors
Judson W. Harvey, Steven L. Krupa, Cynthia Gefvert, Robert H. Mooney, Jungyill Choi, Susan A. King, Jefferson B. Giddings
Quantifying groundwater discharge through fringing wetlands to estuaries: Seasonal variability, methods comparison, and implications for wetland-estuary exchange Quantifying groundwater discharge through fringing wetlands to estuaries: Seasonal variability, methods comparison, and implications for wetland-estuary exchange
Because groundwater discharge along coastal shorelines is often concentrated in zones inhabited by fringing wetlands, accurately estimating discharge is essential for understanding its effect on the function and maintenance of these ecosystems. Most previous estimates of groundwater discharge to coastal wetlands have been temporally limited and have used only a single approach to...
Authors
C.R. Tobias, J. W. Harvey, I.C. Anderson
Analysing the capabilities and limitations of tracer tests in stream-aquifer systems Analysing the capabilities and limitations of tracer tests in stream-aquifer systems
The goal of this study was to identify the limitations that apply when we couple conservative-tracer injection with reactive solute sampling to identify the transport and reaction processes active in a stream. Our methodology applies Monte Carlo uncertainty analysis to assess the ability of the tracer approach to identify the governing transport and reaction processes for a wide range of...
Authors
B.J. Wagner, J. W. Harvey
Reactive uptake of trace metals in the hyporheic zone of a mining- contaminated stream, Pinal Creek, Arizona Reactive uptake of trace metals in the hyporheic zone of a mining- contaminated stream, Pinal Creek, Arizona
Significant uptake of dissolved metals occurred by interaction of groundwater and surface water with hyporheic-zone sediments during transport in Pinal Creek, AZ. The extent of trace metal uptake was calculated by mass balance measurements made directly within the hyporheic zone. A conservative solute tracer injected into the stream was used to quantify hydrologic exchange with the...
Authors
C. C. Fuller, J. W. Harvey
Interaction between ground water and surface water in Taylor Slough and vicinity, Everglades National Park, South Florida: Study methods and appendixes Interaction between ground water and surface water in Taylor Slough and vicinity, Everglades National Park, South Florida: Study methods and appendixes
The data presented in this report are products of an investigation that quantified interactions between ground water and surface water in Taylor Slough in Everglades National Park. Determining the extent of hydrologic interactions between wetland surface water and ground water in Taylor Slough is important because the balance of freshwater flow in the lower part of the Slough is...
Authors
Judson W. Harvey, J. M. Jackson, R. H. Mooney, Jungyill Choi