Joseph Hughes (Former Employee)
Science and Products
Coastal Lowlands Regional Groundwater Availability Study
USGS is undertaking a 5-year study to assess groundwater availability for the aquifers proximal to the Gulf of America from the Texas-Mexico border through the panhandle of Florida, known as the Coastal Lowlands Aquifer System (CLAS). This study is one of several within the Regional Groundwater Availability Studies of the USGS Water Availability and Use Science Program.
Exploring the USGS Science Data Life Cycle in the Cloud
Executive Summary Traditionally in the USGS, data is processed and analyzed on local researcher computers, then moved to centralized, remote computers for preservation and publishing (ScienceBase, Pubs Warehouse). This approach requires each researcher to have the necessary hardware and software for processing and analysis, and also to bring all external data required for the workflow...
Mississippi Alluvial Plain (MAP): Water Availability Study
The Mississippi Alluvial Plain is one of the most productive agricultural regions in the Nation and depends on groundwater for irrigation. The MAP area constitutes the third largest area of irrigated cropland in the United States. The area is approximately 29,000 square miles (19 million acres) and includes parts of the States of Missouri, Tennessee, Arkansas, Mississippi, and Louisiana. The U.S...
Filter Total Items: 45
FloPy workflows for creating structured and unstructured MODFLOW models FloPy workflows for creating structured and unstructured MODFLOW models
FloPy is a popular Python package for creating, running, and post-processing MODFLOW-based groundwater flow and transport models. FloPy functionality has expanded to support the latest version of MODFLOW (MODFLOW 6) including support for unstructured grids. FloPy can be used to download MODFLOW-based and other executables for Linux, MacOS, and Windows operating systems, which simplifies...
Authors
Joseph D. Hughes, Christian D. Langevin, Scott R. Paulinski, Joshua Larsen, David Brakenhoff
Hydrogeology, land-surface subsidence, and documentation of the Gulf Coast Land Subsidence and Groundwater-Flow (GULF) model, southeast Texas, 1897–2018 Hydrogeology, land-surface subsidence, and documentation of the Gulf Coast Land Subsidence and Groundwater-Flow (GULF) model, southeast Texas, 1897–2018
Executive Summary As a part of the Texas Water Development Board groundwater availability modeling program, the U.S. Geological Survey developed the Gulf Coast Land Subsidence and Groundwater-Flow model (hereinafter, the “GULF model”) and ensemble to simulate groundwater flow and land-surface subsidence in the northern part of the Gulf Coast aquifer system (the study area) in Texas from
Authors
J.H. Ellis, Jacob E. Knight, Jeremy T. White, Michelle Sneed, Joseph D. Hughes, Jason K. Ramage, Christopher L. Braun, Andrew Teeple, Linzy K. Foster, Samuel H. Rendon, Justin T. Brandt
Documentation for the MODFLOW 6 Groundwater Transport Model Documentation for the MODFLOW 6 Groundwater Transport Model
This report documents a new Groundwater Transport (GWT) Model for MODFLOW 6. The GWT Model simulates three-dimensional transport of a single chemical species in fowing groundwater based on a generalized control-volume fnite-difference approach. Although each GWT Model is only able to represent a single chemical species, multiple GWT Models may be invoked within a single MODFLOW 6...
Authors
Christian D. Langevin, Alden M. Provost, Sorab Panday, Joseph D. Hughes
Documentation for the Skeletal Storage, Compaction, and Subsidence (CSUB) Package of MODFLOW 6 Documentation for the Skeletal Storage, Compaction, and Subsidence (CSUB) Package of MODFLOW 6
This report describes the skeletal storage, compaction and subsidence (CSUB) package of MODFLOW 6. The CSUB package simulates the vertical compaction of compressible sediments and land subsidence. The package simulates groundwater storage changes and elastic compaction in coarse-grained aquifer sediments. The CSUB package also simulates groundwater storage changes and elastic and...
Authors
Joseph D. Hughes, Stanley A. Leake, Devin L. Galloway, Jeremy T. White
The MODFLOW Application Programming Interface for simulationcontrol and software interoperability The MODFLOW Application Programming Interface for simulationcontrol and software interoperability
The MODFLOW API allows other programs to control MODFLOW and interactively change variables without having to modify the source code. The MODFLOW API is based on the Basic Model Interface (BMI), which is a set of conventions that define how to initialize a simulation, update the model state by advancing in time, and finalize the run. For many existing MODFLOW coupling applications, the...
Authors
Joseph D. Hughes, Martijn J. Russcher, Christian D. Langevin, Eric D. Morway, Richard R. McDonald
Distributed memory parallel groundwater modeling for the Netherlands Hydrological Instrument Distributed memory parallel groundwater modeling for the Netherlands Hydrological Instrument
Worldwide, billions of people rely on fresh groundwater reserves for their domestic, agricultural and industrial water use. Extreme droughts and excessive groundwater pumping put pressure on water authorities in maintaining sustainable water usage. High-resolution integrated models are valuable assets in supporting them. The Netherlands Hydrological Instrument (NHI) provides the Dutch...
Authors
Jarno Verkaik, Joseph D. Hughes, van Walsum, G.H.P. Oude Essink, H.X. Lin, M.F.P. Bierkens
Non-USGS Publications**
Nyer, E., Mayfield, P., and Hughes, J.D, 1998. Beyond the AFCEE Protocol for Natural Attenuation: Ground Water Monitoring and Remediation, v. 18, no. 3, 70-77.
**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
Coastal Lowlands Regional Groundwater Availability Study
USGS is undertaking a 5-year study to assess groundwater availability for the aquifers proximal to the Gulf of America from the Texas-Mexico border through the panhandle of Florida, known as the Coastal Lowlands Aquifer System (CLAS). This study is one of several within the Regional Groundwater Availability Studies of the USGS Water Availability and Use Science Program.
Exploring the USGS Science Data Life Cycle in the Cloud
Executive Summary Traditionally in the USGS, data is processed and analyzed on local researcher computers, then moved to centralized, remote computers for preservation and publishing (ScienceBase, Pubs Warehouse). This approach requires each researcher to have the necessary hardware and software for processing and analysis, and also to bring all external data required for the workflow...
Mississippi Alluvial Plain (MAP): Water Availability Study
The Mississippi Alluvial Plain is one of the most productive agricultural regions in the Nation and depends on groundwater for irrigation. The MAP area constitutes the third largest area of irrigated cropland in the United States. The area is approximately 29,000 square miles (19 million acres) and includes parts of the States of Missouri, Tennessee, Arkansas, Mississippi, and Louisiana. The U.S...
Filter Total Items: 45
FloPy workflows for creating structured and unstructured MODFLOW models FloPy workflows for creating structured and unstructured MODFLOW models
FloPy is a popular Python package for creating, running, and post-processing MODFLOW-based groundwater flow and transport models. FloPy functionality has expanded to support the latest version of MODFLOW (MODFLOW 6) including support for unstructured grids. FloPy can be used to download MODFLOW-based and other executables for Linux, MacOS, and Windows operating systems, which simplifies...
Authors
Joseph D. Hughes, Christian D. Langevin, Scott R. Paulinski, Joshua Larsen, David Brakenhoff
Hydrogeology, land-surface subsidence, and documentation of the Gulf Coast Land Subsidence and Groundwater-Flow (GULF) model, southeast Texas, 1897–2018 Hydrogeology, land-surface subsidence, and documentation of the Gulf Coast Land Subsidence and Groundwater-Flow (GULF) model, southeast Texas, 1897–2018
Executive Summary As a part of the Texas Water Development Board groundwater availability modeling program, the U.S. Geological Survey developed the Gulf Coast Land Subsidence and Groundwater-Flow model (hereinafter, the “GULF model”) and ensemble to simulate groundwater flow and land-surface subsidence in the northern part of the Gulf Coast aquifer system (the study area) in Texas from
Authors
J.H. Ellis, Jacob E. Knight, Jeremy T. White, Michelle Sneed, Joseph D. Hughes, Jason K. Ramage, Christopher L. Braun, Andrew Teeple, Linzy K. Foster, Samuel H. Rendon, Justin T. Brandt
Documentation for the MODFLOW 6 Groundwater Transport Model Documentation for the MODFLOW 6 Groundwater Transport Model
This report documents a new Groundwater Transport (GWT) Model for MODFLOW 6. The GWT Model simulates three-dimensional transport of a single chemical species in fowing groundwater based on a generalized control-volume fnite-difference approach. Although each GWT Model is only able to represent a single chemical species, multiple GWT Models may be invoked within a single MODFLOW 6...
Authors
Christian D. Langevin, Alden M. Provost, Sorab Panday, Joseph D. Hughes
Documentation for the Skeletal Storage, Compaction, and Subsidence (CSUB) Package of MODFLOW 6 Documentation for the Skeletal Storage, Compaction, and Subsidence (CSUB) Package of MODFLOW 6
This report describes the skeletal storage, compaction and subsidence (CSUB) package of MODFLOW 6. The CSUB package simulates the vertical compaction of compressible sediments and land subsidence. The package simulates groundwater storage changes and elastic compaction in coarse-grained aquifer sediments. The CSUB package also simulates groundwater storage changes and elastic and...
Authors
Joseph D. Hughes, Stanley A. Leake, Devin L. Galloway, Jeremy T. White
The MODFLOW Application Programming Interface for simulationcontrol and software interoperability The MODFLOW Application Programming Interface for simulationcontrol and software interoperability
The MODFLOW API allows other programs to control MODFLOW and interactively change variables without having to modify the source code. The MODFLOW API is based on the Basic Model Interface (BMI), which is a set of conventions that define how to initialize a simulation, update the model state by advancing in time, and finalize the run. For many existing MODFLOW coupling applications, the...
Authors
Joseph D. Hughes, Martijn J. Russcher, Christian D. Langevin, Eric D. Morway, Richard R. McDonald
Distributed memory parallel groundwater modeling for the Netherlands Hydrological Instrument Distributed memory parallel groundwater modeling for the Netherlands Hydrological Instrument
Worldwide, billions of people rely on fresh groundwater reserves for their domestic, agricultural and industrial water use. Extreme droughts and excessive groundwater pumping put pressure on water authorities in maintaining sustainable water usage. High-resolution integrated models are valuable assets in supporting them. The Netherlands Hydrological Instrument (NHI) provides the Dutch...
Authors
Jarno Verkaik, Joseph D. Hughes, van Walsum, G.H.P. Oude Essink, H.X. Lin, M.F.P. Bierkens
Non-USGS Publications**
Nyer, E., Mayfield, P., and Hughes, J.D, 1998. Beyond the AFCEE Protocol for Natural Attenuation: Ground Water Monitoring and Remediation, v. 18, no. 3, 70-77.
**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.