Scott Paulinski (Former Employee)
Science and Products
Los Angeles Coastal Plain Groundwater-flow Model
The Los Angeles Coastal Plain Groundwater-flow Model (LACPGM) is a tool to help water managers better understand groundwater flow and seawater intrusion in the Los Angeles coastal plain basins. It is the culmination of years of data collection and studies in the area and builds on our understanding of the area’s geology and hydrology obtained through the geologic and groundwater flow models.
Public supply water use reanalysis for the 2000-2020 period by HUC12, month, and year for the conterminous United States (ver. 2.0, August 2024)
The U.S. Geological Survey is developing national water-use models to support water resources management in the United States. Model benefits include a nationally consistent estimation approach, greater temporal and spatial resolution of estimates, efficient and automated updates of results, and capabilities to forecast water use into the future and assess model uncertainty. The term “reanalysis”
MODFLOW-6 model to update and extend the Los Angeles Coastal Plain Groundwater Model
The Los Angeles Coastal Plain (LACP) covers about 580 square miles and is the largest coastal plain of semiarid southern California. The LACP is heavily developed with mostly residential, commercial, and industrial land uses that rely heavily on groundwater for water supply. In 2010, the LACP was home to about 14 percent of California’s population and is also a major commercial and industrial hub.
Pumping, Injection, and Water Spreading Model Input for the Los Angeles Coastal Plain Groundwater Model - MF6
These data include pumping, injection, and water spreading input data for the MODFLOW-6 extension and update to Los Angeles Coastal Plain Groundwater Model (LACPGM-MF6) for the years 2016-2020. The LACPGM-MF6 required model inputs to represent groundwater injection, groundwater extraction, and water spreading. Extended datasets include four barrier project injection rates, two groundwater producti
MODFLOW-USG model used to evaluate water management issues in the Los Angeles Coastal Plain, California
Seven model data sets are archived for this groundwater study. One simulation for the Los Angeles Coastal Plain groundwater model and six scenario simulations to evaluate the effects of future production well rate increases to reach maximum adjudicated rates and construction of new well fields. Simulations were run with MODFLOW-USG.
Next generation public supply water withdrawal estimation for the conterminous United States using machine learning and operational frameworks
Estimation of human water withdrawals is more important now than ever due to uncertain water supplies, population growth, and climate change. Fourteen percent of the total water withdrawal in the United States is used for public supply, typically including deliveries to domestic, commercial, and occasionally including industrial, irrigation, and thermoelectric water withdrawal. Stewards of water r
Authors
Ayman H. Alzraiee, Richard G. Niswonger, Carol L. Luukkonen, Joshua Larsen, Donald Martin, Deidre Mary Herbert, Cheryl A. Buchwald, Cheryl A. Dieter, Lisa D. Miller, Jana Stewart, Natalie Houston, Scott R. Paulinski, Kristen Valseth
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 the proces
Authors
Joseph D. Hughes, Christian D. Langevin, Scott R. Paulinski, Joshua Larsen, David Brakenhoff
Development of a groundwater-simulation model in the Los Angeles Coastal Plain, Los Angeles County, California
Executive SummaryThe Los Angeles Coastal Plain (LACP) covers about 580 square miles and is the largest coastal plain of semiarid southern California. The LACP is heavily developed with mostly residential, commercial, and industrial land uses that rely heavily on groundwater for water supply. In 2010, the LACP was home to about 14 percent of California’s population, or about 5.4 million residents.
Santa Barbara and Foothill groundwater basins Geohydrology and optimal water resources management—Developed using density dependent solute transport and optimization models
Groundwater has been a part of the city of Santa Barbara’s water-supply portfolio since the 1800s; however, since the 1960s, the majority of the city’s water has come from local surface water, and the remainder has come from groundwater, State Water Project, recycled water, increased water conservation, and as needed, seawater desalination. Although groundwater from the Santa Barbara and Foothill
Authors
Scott R. Paulinski, Tracy Nishikawa, Geoffrey Cromwell, Scott E. Boyce, Zachary P. Stanko
ListingAnalyst: A program for analyzing the main output file from MODFLOW
ListingAnalyst is a Windows® program for viewing the main output file from MODFLOW-2005, MODFLOW-NWT, or MODFLOW-LGR. It organizes and displays large files quickly without using excessive memory. The sections and subsections of the file are displayed in a tree-view control, which allows the user to navigate quickly to desired locations in the files. ListingAnalyst gathers error and warning message
Authors
Richard B. Winston, Scott Paulinski
MODFLOW 6 - LACP
MODFLOW 6 - LACP uses the MODFLOW 6.4.0 source code and modifies the Horizontal Flow Barrier (HFB) package to allow simulation of vertical hydraulic conductance (CV) by connection rather than by cell, an option available for previous versions of MODFLOW (USG).
The MODFLOW 6 - LACP HFB package is used to simulate thin, vertical, and low-permeability geologic features (barriers) and acts to supplem
ListingAnalyst version 1.2
ListingAnalyst has been updated to work with MODFLOW 6 and the most recent versions of MODFLOW-2005 and MODFLOW-NWT. In addition to recognizing many additional error and warning messages, it also recognizes data for the Riparian package in MODFLOW-OWHM, the AG package in MODFLOW-NWT and the Surface-Water Routing package.
Science and Products
Los Angeles Coastal Plain Groundwater-flow Model
The Los Angeles Coastal Plain Groundwater-flow Model (LACPGM) is a tool to help water managers better understand groundwater flow and seawater intrusion in the Los Angeles coastal plain basins. It is the culmination of years of data collection and studies in the area and builds on our understanding of the area’s geology and hydrology obtained through the geologic and groundwater flow models.
Public supply water use reanalysis for the 2000-2020 period by HUC12, month, and year for the conterminous United States (ver. 2.0, August 2024)
The U.S. Geological Survey is developing national water-use models to support water resources management in the United States. Model benefits include a nationally consistent estimation approach, greater temporal and spatial resolution of estimates, efficient and automated updates of results, and capabilities to forecast water use into the future and assess model uncertainty. The term “reanalysis”
MODFLOW-6 model to update and extend the Los Angeles Coastal Plain Groundwater Model
The Los Angeles Coastal Plain (LACP) covers about 580 square miles and is the largest coastal plain of semiarid southern California. The LACP is heavily developed with mostly residential, commercial, and industrial land uses that rely heavily on groundwater for water supply. In 2010, the LACP was home to about 14 percent of California’s population and is also a major commercial and industrial hub.
Pumping, Injection, and Water Spreading Model Input for the Los Angeles Coastal Plain Groundwater Model - MF6
These data include pumping, injection, and water spreading input data for the MODFLOW-6 extension and update to Los Angeles Coastal Plain Groundwater Model (LACPGM-MF6) for the years 2016-2020. The LACPGM-MF6 required model inputs to represent groundwater injection, groundwater extraction, and water spreading. Extended datasets include four barrier project injection rates, two groundwater producti
MODFLOW-USG model used to evaluate water management issues in the Los Angeles Coastal Plain, California
Seven model data sets are archived for this groundwater study. One simulation for the Los Angeles Coastal Plain groundwater model and six scenario simulations to evaluate the effects of future production well rate increases to reach maximum adjudicated rates and construction of new well fields. Simulations were run with MODFLOW-USG.
Next generation public supply water withdrawal estimation for the conterminous United States using machine learning and operational frameworks
Estimation of human water withdrawals is more important now than ever due to uncertain water supplies, population growth, and climate change. Fourteen percent of the total water withdrawal in the United States is used for public supply, typically including deliveries to domestic, commercial, and occasionally including industrial, irrigation, and thermoelectric water withdrawal. Stewards of water r
Authors
Ayman H. Alzraiee, Richard G. Niswonger, Carol L. Luukkonen, Joshua Larsen, Donald Martin, Deidre Mary Herbert, Cheryl A. Buchwald, Cheryl A. Dieter, Lisa D. Miller, Jana Stewart, Natalie Houston, Scott R. Paulinski, Kristen Valseth
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 the proces
Authors
Joseph D. Hughes, Christian D. Langevin, Scott R. Paulinski, Joshua Larsen, David Brakenhoff
Development of a groundwater-simulation model in the Los Angeles Coastal Plain, Los Angeles County, California
Executive SummaryThe Los Angeles Coastal Plain (LACP) covers about 580 square miles and is the largest coastal plain of semiarid southern California. The LACP is heavily developed with mostly residential, commercial, and industrial land uses that rely heavily on groundwater for water supply. In 2010, the LACP was home to about 14 percent of California’s population, or about 5.4 million residents.
Santa Barbara and Foothill groundwater basins Geohydrology and optimal water resources management—Developed using density dependent solute transport and optimization models
Groundwater has been a part of the city of Santa Barbara’s water-supply portfolio since the 1800s; however, since the 1960s, the majority of the city’s water has come from local surface water, and the remainder has come from groundwater, State Water Project, recycled water, increased water conservation, and as needed, seawater desalination. Although groundwater from the Santa Barbara and Foothill
Authors
Scott R. Paulinski, Tracy Nishikawa, Geoffrey Cromwell, Scott E. Boyce, Zachary P. Stanko
ListingAnalyst: A program for analyzing the main output file from MODFLOW
ListingAnalyst is a Windows® program for viewing the main output file from MODFLOW-2005, MODFLOW-NWT, or MODFLOW-LGR. It organizes and displays large files quickly without using excessive memory. The sections and subsections of the file are displayed in a tree-view control, which allows the user to navigate quickly to desired locations in the files. ListingAnalyst gathers error and warning message
Authors
Richard B. Winston, Scott Paulinski
MODFLOW 6 - LACP
MODFLOW 6 - LACP uses the MODFLOW 6.4.0 source code and modifies the Horizontal Flow Barrier (HFB) package to allow simulation of vertical hydraulic conductance (CV) by connection rather than by cell, an option available for previous versions of MODFLOW (USG).
The MODFLOW 6 - LACP HFB package is used to simulate thin, vertical, and low-permeability geologic features (barriers) and acts to supplem
ListingAnalyst version 1.2
ListingAnalyst has been updated to work with MODFLOW 6 and the most recent versions of MODFLOW-2005 and MODFLOW-NWT. In addition to recognizing many additional error and warning messages, it also recognizes data for the Riparian package in MODFLOW-OWHM, the AG package in MODFLOW-NWT and the Surface-Water Routing package.