Jeremy D. Decker, PhD
Jeremy D. Decker is a hydrologist with the U.S Geological Survey Caribbean-Florida Water Science Center and is currently working on the development of groundwater/surface-water models to study the effects of changing climate and sea-level on coastal environments.
Dr. Decker is a hydrologist with the U.S. Geological Survey Caribbean-Florida Water Science Center located in Lutz, Florida. He completed his B.S. and M.Eng in Mechanical Engineering at the University of Louisville and received his PhD in Mechanical Engineering from the University of Miami. He has experience with the development of numerical models of groundwater/surface-water flow for a variety of environments. His work has included numerical code development, data processing and parameter determination as well as future scenario development and testing involving projected climate and sea level. His most recent projects have focused on the potential effects on drainage infrastructure and the increased potential for inundation due to changing sea level and precipitation within southeastern Florida.
Science and Products
Filter Total Items: 14
Urban runoff (URO) process for MODFLOW 2005: simulation of sub-grid scale urban hydrologic processes in Broward County, FL Urban runoff (URO) process for MODFLOW 2005: simulation of sub-grid scale urban hydrologic processes in Broward County, FL
Climate change and sea-level rise could cause substantial changes in urban runoff and flooding in low-lying coast landscapes. A major challenge for local government officials and decision makers is to translate the potential global effects of climate change into actionable and cost-effective adaptation and mitigation strategies at county and municipal scales. A MODFLOW process is used to...
Authors
Jeremy D. Decker, J.D. Hughes
Internet-based Modeling, Mapping, and Analysis for the Greater Everglades (IMMAGE; Version 1.0): web-based tools to assess the impact of sea level rise in south Florida Internet-based Modeling, Mapping, and Analysis for the Greater Everglades (IMMAGE; Version 1.0): web-based tools to assess the impact of sea level rise in south Florida
South Florida's Greater Everglades area is particularly vulnerable to sea level rise, due to its rich endowment of animal and plant species and its heavily populated urban areas along the coast. Rising sea levels are expected to have substantial impacts on inland flooding, the depth and extent of surge from coastal storms, the degradation of water supplies by saltwater intrusion, and the...
Authors
Paul Hearn, David Strong, Eric Swain, Jeremy Decker
Assessing factors affecting the thermal properties of a passive thermal refuge using three-dimensional hydrodynamic flow and transport modeling Assessing factors affecting the thermal properties of a passive thermal refuge using three-dimensional hydrodynamic flow and transport modeling
Everglades restoration activities may cause changes to temperature and salinity stratification at the Port of the Islands (POI) marina, which could affect its suitability as a cold weather refuge for manatees. To better understand how the Picayune Strand Restoration Project (PSRP) may alter this important resource in Collier County in southwestern Florida, the USGS has developed a three
Authors
Jeremy D. Decker, Eric D. Swain, Bradley Stith, Catherine A. Langtimm
Use of upscaled elevation and surface roughness data in two-dimensional surface water models Use of upscaled elevation and surface roughness data in two-dimensional surface water models
In this paper, we present an approach that uses a combination of cell-block- and cell-face-averaging of high-resolution cell elevation and roughness data to upscale hydraulic parameters and accurately simulate surface water flow in relatively low-resolution numerical models. The method developed allows channelized features that preferentially connect large-scale grid cells at cell...
Authors
J.D. Hughes, J.D. Decker, C.D. Langevin
Measurement-derived heat-budget approaches for simulating coastal wetland temperature with a hydrodynamic model Measurement-derived heat-budget approaches for simulating coastal wetland temperature with a hydrodynamic model
Numerical modeling is needed to predict environmental temperatures, which affect a number of biota in southern Florida, U.S.A., such as the West Indian manatee (Trichechus manatus), which uses thermal basins for refuge from lethal winter cold fronts. To numerically simulate heat-transport through a dynamic coastal wetland region, an algorithm was developed for the FTLOADDS coupled...
Authors
Eric Swain, Jeremy Decker
Temperature inverted haloclines provide winter warm-water refugia for manatees in southwest Florida Temperature inverted haloclines provide winter warm-water refugia for manatees in southwest Florida
Florida manatees (Trichechus manatus latirostris) overwintering in the Ten Thousand Islands and western Everglades have no access to power plants or major artesian springs that provide warm-water refugia in other parts of Florida. Instead, hundreds of manatees aggregate at artificial canals, basins, and natural deep water sites that act as passive thermal refugia (PTR). Monitoring at two...
Authors
Bradley Stith, James P. Reid, Catherine A. Langtimm, Eric D. Swain, Terry J. Doyle, Daniel H. Slone, Jeremy D. Decker, Lars E. Soderqvist
Non-USGS Publications**
Swain, E. D., Lohmann, Melinda, and Decker, J. D.,2008, Hydrologic Simulations of Water-Management Scenarios in Support of the Comprehensive Everglades Restoration Plan, In The Role of Hydrology in Water Resources Management, IAHS Red Book Series, UNESCO/IAHS Symposium, October 2008, Isle of Capri, Napoli, Italy.
Swain, E. D. and Decker, J. D., 2007, Developing a Heat-Transport Formulation for a Two-Dimensional Hydrodynamic Model of Coastal Wetlands, Second National Conference on Ecosystem Restoration, April 23-27, 2007, Kansas City Missouri p. 340.
**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: 14
Urban runoff (URO) process for MODFLOW 2005: simulation of sub-grid scale urban hydrologic processes in Broward County, FL Urban runoff (URO) process for MODFLOW 2005: simulation of sub-grid scale urban hydrologic processes in Broward County, FL
Climate change and sea-level rise could cause substantial changes in urban runoff and flooding in low-lying coast landscapes. A major challenge for local government officials and decision makers is to translate the potential global effects of climate change into actionable and cost-effective adaptation and mitigation strategies at county and municipal scales. A MODFLOW process is used to...
Authors
Jeremy D. Decker, J.D. Hughes
Internet-based Modeling, Mapping, and Analysis for the Greater Everglades (IMMAGE; Version 1.0): web-based tools to assess the impact of sea level rise in south Florida Internet-based Modeling, Mapping, and Analysis for the Greater Everglades (IMMAGE; Version 1.0): web-based tools to assess the impact of sea level rise in south Florida
South Florida's Greater Everglades area is particularly vulnerable to sea level rise, due to its rich endowment of animal and plant species and its heavily populated urban areas along the coast. Rising sea levels are expected to have substantial impacts on inland flooding, the depth and extent of surge from coastal storms, the degradation of water supplies by saltwater intrusion, and the...
Authors
Paul Hearn, David Strong, Eric Swain, Jeremy Decker
Assessing factors affecting the thermal properties of a passive thermal refuge using three-dimensional hydrodynamic flow and transport modeling Assessing factors affecting the thermal properties of a passive thermal refuge using three-dimensional hydrodynamic flow and transport modeling
Everglades restoration activities may cause changes to temperature and salinity stratification at the Port of the Islands (POI) marina, which could affect its suitability as a cold weather refuge for manatees. To better understand how the Picayune Strand Restoration Project (PSRP) may alter this important resource in Collier County in southwestern Florida, the USGS has developed a three
Authors
Jeremy D. Decker, Eric D. Swain, Bradley Stith, Catherine A. Langtimm
Use of upscaled elevation and surface roughness data in two-dimensional surface water models Use of upscaled elevation and surface roughness data in two-dimensional surface water models
In this paper, we present an approach that uses a combination of cell-block- and cell-face-averaging of high-resolution cell elevation and roughness data to upscale hydraulic parameters and accurately simulate surface water flow in relatively low-resolution numerical models. The method developed allows channelized features that preferentially connect large-scale grid cells at cell...
Authors
J.D. Hughes, J.D. Decker, C.D. Langevin
Measurement-derived heat-budget approaches for simulating coastal wetland temperature with a hydrodynamic model Measurement-derived heat-budget approaches for simulating coastal wetland temperature with a hydrodynamic model
Numerical modeling is needed to predict environmental temperatures, which affect a number of biota in southern Florida, U.S.A., such as the West Indian manatee (Trichechus manatus), which uses thermal basins for refuge from lethal winter cold fronts. To numerically simulate heat-transport through a dynamic coastal wetland region, an algorithm was developed for the FTLOADDS coupled...
Authors
Eric Swain, Jeremy Decker
Temperature inverted haloclines provide winter warm-water refugia for manatees in southwest Florida Temperature inverted haloclines provide winter warm-water refugia for manatees in southwest Florida
Florida manatees (Trichechus manatus latirostris) overwintering in the Ten Thousand Islands and western Everglades have no access to power plants or major artesian springs that provide warm-water refugia in other parts of Florida. Instead, hundreds of manatees aggregate at artificial canals, basins, and natural deep water sites that act as passive thermal refugia (PTR). Monitoring at two...
Authors
Bradley Stith, James P. Reid, Catherine A. Langtimm, Eric D. Swain, Terry J. Doyle, Daniel H. Slone, Jeremy D. Decker, Lars E. Soderqvist
Non-USGS Publications**
Swain, E. D., Lohmann, Melinda, and Decker, J. D.,2008, Hydrologic Simulations of Water-Management Scenarios in Support of the Comprehensive Everglades Restoration Plan, In The Role of Hydrology in Water Resources Management, IAHS Red Book Series, UNESCO/IAHS Symposium, October 2008, Isle of Capri, Napoli, Italy.
Swain, E. D. and Decker, J. D., 2007, Developing a Heat-Transport Formulation for a Two-Dimensional Hydrodynamic Model of Coastal Wetlands, Second National Conference on Ecosystem Restoration, April 23-27, 2007, Kansas City Missouri p. 340.
**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.