W. Barclay Shoemaker
W. Barclay Shoemaker is a research hydrologist for the U.S. Geological Survey in Davie, Florida. His interests include numerical modeling, micrometeorology, and hydrologic characterization for conflicts over water. Barclay was invited to appear on a National Public Radio (NPR) show titled "Florida Aquifer and Saltwater". He has authored numerous USGS technical reports and journal articles; and has served as peer-reviewer for scientific journals including Ground Water and Water Resources Research.
Science and Products
Evapotranspiration within Blue Cypress Marsh, Indian River County, Florida, 2018 to 2020 Evapotranspiration within Blue Cypress Marsh, Indian River County, Florida, 2018 to 2020
The dataset includes a table in comma delimited format of daily evapotranspiration (ET) from 6/14/2018 to 12/31/2020 from an ET station within the Blue Cypress Marsh Conservation Area, within Indian River County, Florida. Evapotranspiration was estimated using eddy-covariance methods and missing records were gap-filled with a version of the Turc equation (Trajkovic and Kolakovic, 2009)...
Evaporation at LZ40 Platform, Lake Okeechobee, Palm Beach County, Florida, January 1, 2020 - December 31, 2020 Evaporation at LZ40 Platform, Lake Okeechobee, Palm Beach County, Florida, January 1, 2020 - December 31, 2020
Daily measurements of evaporation using the Bowen ratio method were made at USGS station name LZ40 (USGS site number 265405080472100), a platform-based station constructed by the South Florida Water Management District (SFWMD) at the approximate center of Lake Okeechobee, Florida. Meteorological and environmental variables were measured every 30 seconds and averaged at 15-minute...
Daily reference and potential evapotranspiration, and supporting meteorological data from weather stations, solar insolation data from the GOES satellite, and blue-sky albedo data from the MODIS satellite, Florida, 2019 Daily reference and potential evapotranspiration, and supporting meteorological data from weather stations, solar insolation data from the GOES satellite, and blue-sky albedo data from the MODIS satellite, Florida, 2019
Potential evapotranspiration (PET), and reference evapotranspiration (ETo) are estimated at an approximately 2-kilometer (approximately 0.019 degrees longitude and 0.018 degrees latitude) spatial grid and daily time-scale from January 1, 2019 to December 31, 2019 for the entire State of Florida. PET and ETo were computed on the basis of solar radiation, meteorological data (minimum...
Daily reference and potential evapotranspiration, and supporting meteorological, solar insolation, and blue-sky albedo, Florida, 2019 Daily reference and potential evapotranspiration, and supporting meteorological, solar insolation, and blue-sky albedo, Florida, 2019
Potential evapotranspiration (PET), and reference evapotranspiration (ETo) are estimated at an approximately 2-kilometer (approximately 0.019 degrees longitude and 0.018 degrees latitude) spatial grid and daily time-scale from January 1, 2019 to December 31, 2019 for the entire State of Florida. PET and ETo were computed on the basis of solar radiation, meteorological data (minimum...
Potential Accumulation of Soil Organic Matter from Carbon Cycling within Greater Everglades Cypress and Pine Forested Wetlands data Potential Accumulation of Soil Organic Matter from Carbon Cycling within Greater Everglades Cypress and Pine Forested Wetlands data
These data quantify components of the carbon cycle within Big Cypress National Preserve in Florida. Continuous data time-series include net ecosystem exchange of carbon dioxide, methanogenesis, and soil bulk density.
Evapotranspiration within Blue Cypress Marsh, Vero Beach, Florida, 2015 to 2018 Evapotranspiration within Blue Cypress Marsh, Vero Beach, Florida, 2015 to 2018
he dataset consists of a table in Excel format of daily evapotranspiration (ET) from 12/1/2015 to 6/13/2018 at ET station within the Blue Cypress Marsh Conservation Area near Vero Beach, Florida. Evapotranspiration was estimated using eddy-covariance methods. Data processing followed methods outlined by Shoemaker and others (2011). Ancillary data includes net radiation, latent heat...
Filter Total Items: 17
Effects of dynamically variable saturation and matrix-conduit coupling of flow in karst aquifers Effects of dynamically variable saturation and matrix-conduit coupling of flow in karst aquifers
Well-developed karst aquifers consist of highly conductive conduits and a relatively low permeability fractured and/or porous rock matrix and therefore behave as a dual-hydraulic system. Groundwater flow within highly permeable strata is rapid and transient and depends on local flow conditions, i.e., pressurized or nonpressurized flow. The characterization of karst aquifers is a...
Authors
Thomas Reimann, T. Geyer, W.B. Shoemaker, R. Liedl, M. Sauter
Sensitivity of wetland saturated hydraulic heads and water budgets to evapotranspiration Sensitivity of wetland saturated hydraulic heads and water budgets to evapotranspiration
The sensitivity of wetland saturated hydraulic heads and water budgets to evapotranspiration (ET) was examined using a simplified hydrologic model and eight representations of ET. Estimates of ET that created the most reliable wetland saturated hydraulic heads and water budgets employed vegetation coefficients to correct potential ET, calculated by the Priestley-Taylor equation, to...
Authors
W.B. Shoemaker, S. Huddleston, C.L. Boudreau, A. M. O’Reilly
Permeameter data verify new turbulence process for MODFLOW Permeameter data verify new turbulence process for MODFLOW
A sample of Key Largo Limestone from southern Florida exhibited turbulent flow behavior along three orthogonal axes as reported in recently published permeameter experiments. The limestone sample was a cube measuring 0.2 m on edge. The published nonlinear relation between hydraulic gradient and discharge was simulated using the turbulent flow approximation applied in the Conduit Flow...
Authors
Eve L. Kuniansky, Keith J. Halford, W. Barclay Shoemaker
Effects of turbulence on hydraulic heads and parameter sensitivities in preferential groundwater flow layers Effects of turbulence on hydraulic heads and parameter sensitivities in preferential groundwater flow layers
A conduit flow process (CFP) for the Modular Finite Difference Ground‐Water Flow model, MODFLOW‐2005, has been created by the U.S. Geological Survey. An application of the CFP on a carbonate aquifer in southern Florida is described; this application examines (1) the potential for turbulent groundwater flow and (2) the effects of turbulent flow on hydraulic heads and parameter...
Authors
W. Barclay Shoemaker, Kevin J. Cunningham, Eve L. Kuniansky, Joann F. Dixon
Documentation of a Conduit Flow Process (CFP) for MODFLOW-2005 Documentation of a Conduit Flow Process (CFP) for MODFLOW-2005
This report documents the Conduit Flow Process (CFP) for the modular finite-difference ground-water flow model, MODFLOW-2005. The CFP has the ability to simulate turbulent ground-water flow conditions by: (1) coupling the traditional ground-water flow equation with formulations for a discrete network of cylindrical pipes (Mode 1), (2) inserting a high-conductivity flow layer that can...
Authors
W. Barclay Shoemaker, Eve L. Kuniansky, Steffen Birk, Sebastian Bauer, Eric D. Swain
Alternate corrections for estimating actual wetland evapotranspiration from potential evapotranspiration Alternate corrections for estimating actual wetland evapotranspiration from potential evapotranspiration
Corrections can be used to estimate actual wetland evapotranspiration (AET) from potential evapotranspiration (PET) as a means to define the hydrology of wetland areas. Many alternate parameterizations for correction coefficients for three PET equations are presented, covering a wide range of possible data-availability scenarios. At nine sites in the wetland Everglades of south Florida...
Authors
W. Barclay Shoemaker, D. M. Sumner
Science and Products
Evapotranspiration within Blue Cypress Marsh, Indian River County, Florida, 2018 to 2020 Evapotranspiration within Blue Cypress Marsh, Indian River County, Florida, 2018 to 2020
The dataset includes a table in comma delimited format of daily evapotranspiration (ET) from 6/14/2018 to 12/31/2020 from an ET station within the Blue Cypress Marsh Conservation Area, within Indian River County, Florida. Evapotranspiration was estimated using eddy-covariance methods and missing records were gap-filled with a version of the Turc equation (Trajkovic and Kolakovic, 2009)...
Evaporation at LZ40 Platform, Lake Okeechobee, Palm Beach County, Florida, January 1, 2020 - December 31, 2020 Evaporation at LZ40 Platform, Lake Okeechobee, Palm Beach County, Florida, January 1, 2020 - December 31, 2020
Daily measurements of evaporation using the Bowen ratio method were made at USGS station name LZ40 (USGS site number 265405080472100), a platform-based station constructed by the South Florida Water Management District (SFWMD) at the approximate center of Lake Okeechobee, Florida. Meteorological and environmental variables were measured every 30 seconds and averaged at 15-minute...
Daily reference and potential evapotranspiration, and supporting meteorological data from weather stations, solar insolation data from the GOES satellite, and blue-sky albedo data from the MODIS satellite, Florida, 2019 Daily reference and potential evapotranspiration, and supporting meteorological data from weather stations, solar insolation data from the GOES satellite, and blue-sky albedo data from the MODIS satellite, Florida, 2019
Potential evapotranspiration (PET), and reference evapotranspiration (ETo) are estimated at an approximately 2-kilometer (approximately 0.019 degrees longitude and 0.018 degrees latitude) spatial grid and daily time-scale from January 1, 2019 to December 31, 2019 for the entire State of Florida. PET and ETo were computed on the basis of solar radiation, meteorological data (minimum...
Daily reference and potential evapotranspiration, and supporting meteorological, solar insolation, and blue-sky albedo, Florida, 2019 Daily reference and potential evapotranspiration, and supporting meteorological, solar insolation, and blue-sky albedo, Florida, 2019
Potential evapotranspiration (PET), and reference evapotranspiration (ETo) are estimated at an approximately 2-kilometer (approximately 0.019 degrees longitude and 0.018 degrees latitude) spatial grid and daily time-scale from January 1, 2019 to December 31, 2019 for the entire State of Florida. PET and ETo were computed on the basis of solar radiation, meteorological data (minimum...
Potential Accumulation of Soil Organic Matter from Carbon Cycling within Greater Everglades Cypress and Pine Forested Wetlands data Potential Accumulation of Soil Organic Matter from Carbon Cycling within Greater Everglades Cypress and Pine Forested Wetlands data
These data quantify components of the carbon cycle within Big Cypress National Preserve in Florida. Continuous data time-series include net ecosystem exchange of carbon dioxide, methanogenesis, and soil bulk density.
Evapotranspiration within Blue Cypress Marsh, Vero Beach, Florida, 2015 to 2018 Evapotranspiration within Blue Cypress Marsh, Vero Beach, Florida, 2015 to 2018
he dataset consists of a table in Excel format of daily evapotranspiration (ET) from 12/1/2015 to 6/13/2018 at ET station within the Blue Cypress Marsh Conservation Area near Vero Beach, Florida. Evapotranspiration was estimated using eddy-covariance methods. Data processing followed methods outlined by Shoemaker and others (2011). Ancillary data includes net radiation, latent heat...
Filter Total Items: 17
Effects of dynamically variable saturation and matrix-conduit coupling of flow in karst aquifers Effects of dynamically variable saturation and matrix-conduit coupling of flow in karst aquifers
Well-developed karst aquifers consist of highly conductive conduits and a relatively low permeability fractured and/or porous rock matrix and therefore behave as a dual-hydraulic system. Groundwater flow within highly permeable strata is rapid and transient and depends on local flow conditions, i.e., pressurized or nonpressurized flow. The characterization of karst aquifers is a...
Authors
Thomas Reimann, T. Geyer, W.B. Shoemaker, R. Liedl, M. Sauter
Sensitivity of wetland saturated hydraulic heads and water budgets to evapotranspiration Sensitivity of wetland saturated hydraulic heads and water budgets to evapotranspiration
The sensitivity of wetland saturated hydraulic heads and water budgets to evapotranspiration (ET) was examined using a simplified hydrologic model and eight representations of ET. Estimates of ET that created the most reliable wetland saturated hydraulic heads and water budgets employed vegetation coefficients to correct potential ET, calculated by the Priestley-Taylor equation, to...
Authors
W.B. Shoemaker, S. Huddleston, C.L. Boudreau, A. M. O’Reilly
Permeameter data verify new turbulence process for MODFLOW Permeameter data verify new turbulence process for MODFLOW
A sample of Key Largo Limestone from southern Florida exhibited turbulent flow behavior along three orthogonal axes as reported in recently published permeameter experiments. The limestone sample was a cube measuring 0.2 m on edge. The published nonlinear relation between hydraulic gradient and discharge was simulated using the turbulent flow approximation applied in the Conduit Flow...
Authors
Eve L. Kuniansky, Keith J. Halford, W. Barclay Shoemaker
Effects of turbulence on hydraulic heads and parameter sensitivities in preferential groundwater flow layers Effects of turbulence on hydraulic heads and parameter sensitivities in preferential groundwater flow layers
A conduit flow process (CFP) for the Modular Finite Difference Ground‐Water Flow model, MODFLOW‐2005, has been created by the U.S. Geological Survey. An application of the CFP on a carbonate aquifer in southern Florida is described; this application examines (1) the potential for turbulent groundwater flow and (2) the effects of turbulent flow on hydraulic heads and parameter...
Authors
W. Barclay Shoemaker, Kevin J. Cunningham, Eve L. Kuniansky, Joann F. Dixon
Documentation of a Conduit Flow Process (CFP) for MODFLOW-2005 Documentation of a Conduit Flow Process (CFP) for MODFLOW-2005
This report documents the Conduit Flow Process (CFP) for the modular finite-difference ground-water flow model, MODFLOW-2005. The CFP has the ability to simulate turbulent ground-water flow conditions by: (1) coupling the traditional ground-water flow equation with formulations for a discrete network of cylindrical pipes (Mode 1), (2) inserting a high-conductivity flow layer that can...
Authors
W. Barclay Shoemaker, Eve L. Kuniansky, Steffen Birk, Sebastian Bauer, Eric D. Swain
Alternate corrections for estimating actual wetland evapotranspiration from potential evapotranspiration Alternate corrections for estimating actual wetland evapotranspiration from potential evapotranspiration
Corrections can be used to estimate actual wetland evapotranspiration (AET) from potential evapotranspiration (PET) as a means to define the hydrology of wetland areas. Many alternate parameterizations for correction coefficients for three PET equations are presented, covering a wide range of possible data-availability scenarios. At nine sites in the wetland Everglades of south Florida...
Authors
W. Barclay Shoemaker, D. M. Sumner