Lisa V. Lucas
Lisa Lucas is a Research General Engineer with the USGS Water Resources Mission Area.
- Performs mathematical modeling and data analysis for assessments, understanding, and prediction of water availability.
- Develops and applies mathematical models to understand and predict water flow, mixing, and water quality in surface water systems.
Science and Products
Filter Total Items: 32
Tracers and timescales: Tools for distilling and simplifying complex fluid mechanical problems Tracers and timescales: Tools for distilling and simplifying complex fluid mechanical problems
No abstract available.
Authors
Lisa Lucas, Eric Deleersnijder
Toward improved decision-support tools for Delta Smelt management actions Toward improved decision-support tools for Delta Smelt management actions
The Collaborative Science and Adaptive Management Program (CSAMP) has endorsed a goal of reversing the recent downward trajectory of the Delta Smelt population within 5-10 generations, with the long-term aim of establishing a self-sustaining population. An ambitious agenda of management actions is planned, and more management actions are being considered. This White Paper furthers one of...
Authors
Denise Reed, Shawn Acuna, Eli Ateljevich, Larry R. Brown, Ben Geske, Edward Gross, Jim Hobbs, Wim J. Kimmerer, Lisa Lucas, Matthew Nobriga, Kenneth A Rose
Timescale methods for simplifying, understanding and modeling biophysical and water quality processes in coastal aquatic ecosystems: A review Timescale methods for simplifying, understanding and modeling biophysical and water quality processes in coastal aquatic ecosystems: A review
In this article, we describe the use of diagnostic timescales as simple tools for illuminating how aquatic ecosystems work, with a focus on coastal systems such as estuaries, lagoons, tidal rivers, reefs, deltas, gulfs, and continental shelves. Intending this as a tutorial as well as a review, we discuss relevant fundamental concepts (e.g., Lagrangian and Eulerian perspectives and...
Authors
Lisa Lucas, Eric Deleersnijder
What determines water temperature dynamics in the San Francisco Bay-Delta system? What determines water temperature dynamics in the San Francisco Bay-Delta system?
Water temperature is an important factor determining estuarine species habitat conditions. Water temperature is mainly governed by advection (e.g., from rivers) and atmospheric exchange processes varying strongly over time (day-night, seasonally) and the spatial domain. On a long time scale, climate change will impact water temperature in estuarine systems due to changes in river flow...
Authors
Julia Vroom, Mick Van der Wegen, Rosanne C. Martyr-Koller, Lisa Lucas
Application of an unstructured 3D finite volume numerical model to flows and salinity dynamics in the San Francisco Bay-Delta Application of an unstructured 3D finite volume numerical model to flows and salinity dynamics in the San Francisco Bay-Delta
A linked modeling approach has been undertaken to understand the impacts of climate and infrastructure on aquatic ecology and water quality in the San Francisco Bay-Delta region. The Delft3D Flexible Mesh modeling suite is used in this effort for its 3D hydrodynamics, salinity, temperature and sediment dynamics, phytoplankton and water-quality coupling infrastructure, and linkage to a...
Authors
R.C. Martyr-Koller, H.W.J. Kernkamp, Anne A. Van Dam, Mick van der Wegen, Lisa Lucas, N. Knowles, B. Jaffe, T.A. Fregoso
Bivalve grazing can shape phytoplankton communities Bivalve grazing can shape phytoplankton communities
The ability of bivalve filter feeders to limit phytoplankton biomass in shallow waters is well-documented, but the role of bivalves in shaping phytoplankton communities is not. The coupled effect of bivalve grazing at the sediment-water interface and sinking of phytoplankton cells to that bottom filtration zone could influence the relative biomass of sinking (diatoms) and non-sinking...
Authors
Lisa Lucas, James E. Cloern, Janet K. Thompson, Mark T. Stacey, Jeffrey K. Koseff
Science and Products
Filter Total Items: 32
Tracers and timescales: Tools for distilling and simplifying complex fluid mechanical problems Tracers and timescales: Tools for distilling and simplifying complex fluid mechanical problems
No abstract available.
Authors
Lisa Lucas, Eric Deleersnijder
Toward improved decision-support tools for Delta Smelt management actions Toward improved decision-support tools for Delta Smelt management actions
The Collaborative Science and Adaptive Management Program (CSAMP) has endorsed a goal of reversing the recent downward trajectory of the Delta Smelt population within 5-10 generations, with the long-term aim of establishing a self-sustaining population. An ambitious agenda of management actions is planned, and more management actions are being considered. This White Paper furthers one of...
Authors
Denise Reed, Shawn Acuna, Eli Ateljevich, Larry R. Brown, Ben Geske, Edward Gross, Jim Hobbs, Wim J. Kimmerer, Lisa Lucas, Matthew Nobriga, Kenneth A Rose
Timescale methods for simplifying, understanding and modeling biophysical and water quality processes in coastal aquatic ecosystems: A review Timescale methods for simplifying, understanding and modeling biophysical and water quality processes in coastal aquatic ecosystems: A review
In this article, we describe the use of diagnostic timescales as simple tools for illuminating how aquatic ecosystems work, with a focus on coastal systems such as estuaries, lagoons, tidal rivers, reefs, deltas, gulfs, and continental shelves. Intending this as a tutorial as well as a review, we discuss relevant fundamental concepts (e.g., Lagrangian and Eulerian perspectives and...
Authors
Lisa Lucas, Eric Deleersnijder
What determines water temperature dynamics in the San Francisco Bay-Delta system? What determines water temperature dynamics in the San Francisco Bay-Delta system?
Water temperature is an important factor determining estuarine species habitat conditions. Water temperature is mainly governed by advection (e.g., from rivers) and atmospheric exchange processes varying strongly over time (day-night, seasonally) and the spatial domain. On a long time scale, climate change will impact water temperature in estuarine systems due to changes in river flow...
Authors
Julia Vroom, Mick Van der Wegen, Rosanne C. Martyr-Koller, Lisa Lucas
Application of an unstructured 3D finite volume numerical model to flows and salinity dynamics in the San Francisco Bay-Delta Application of an unstructured 3D finite volume numerical model to flows and salinity dynamics in the San Francisco Bay-Delta
A linked modeling approach has been undertaken to understand the impacts of climate and infrastructure on aquatic ecology and water quality in the San Francisco Bay-Delta region. The Delft3D Flexible Mesh modeling suite is used in this effort for its 3D hydrodynamics, salinity, temperature and sediment dynamics, phytoplankton and water-quality coupling infrastructure, and linkage to a...
Authors
R.C. Martyr-Koller, H.W.J. Kernkamp, Anne A. Van Dam, Mick van der Wegen, Lisa Lucas, N. Knowles, B. Jaffe, T.A. Fregoso
Bivalve grazing can shape phytoplankton communities Bivalve grazing can shape phytoplankton communities
The ability of bivalve filter feeders to limit phytoplankton biomass in shallow waters is well-documented, but the role of bivalves in shaping phytoplankton communities is not. The coupled effect of bivalve grazing at the sediment-water interface and sinking of phytoplankton cells to that bottom filtration zone could influence the relative biomass of sinking (diatoms) and non-sinking...
Authors
Lisa Lucas, James E. Cloern, Janet K. Thompson, Mark T. Stacey, Jeffrey K. Koseff