3D Water Quality Model
The 3D Water Quality Model is a three-dimensional hydrodynamic model for simulating and assessing the impact of salinity and water temperature in the San Francisco Bay and Delta.
Applications
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Simulating 3D water dynamics, salinity, and temperature in the Bay Delta temperature in the Bay
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Assessing the impacts from wind, air pressure, humidity, cloudiness, and air temperature
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Assessing the impact of sediment, phytoplankton, and contaminant concentrations on habitat suitability for fish and bivalves
Model Description
The 3D Water Quality Model incorporates work by Martyr-Koller et al., (2017) and Vroom et al. (2017).
The Martyr-Koller et al., (2017) methodology was developed to investigate tidal, seasonal and annual dynamics of water levels, river flows and salinity under historical environmental and infrastructural conditions. The model is driven by historical federal, state, and local datapoints on wind, tides, ocean salinity, and river flows, and freshwater withdrawals.
This model was calibrated over a 9-month period. The model’s accuracy was validated for water levels, flows, and 3D salinity dynamics over a 2 year period, including a dry year (WY2012) and a wet year (WY2011).
The methodology by Vroom et al. (2017) was developed to determine the factors governing estuarine water temperature and its sensitivity to changes in its forcing.
The model was calibrated for WY2011 and validated for WY2012 and incorporated 3D hydrodynamics, salinity intrusion, water temperature dynamics, and atmospheric coupling. The model is effective at reproducing temperature observations on daily, seasonal, and yearly time scales. The temperature of the upstream, fresh water Delta area is captured well in, although processes such as stratification should be taken into account on a local scale.
Download the 3D Water Quality Model
Third parties can run, amend, copy, and distribute this SFBD-3D and other SFBD Community Models under Creative Commons Attribution-Share Alike 4.0 International License:
Model grid, boundary conditions, and meteorological forcing for WY2011 and WY2012.
Citation
When using one or more of the downloads, please include the following references:
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Martyr-Koller, R. C., Kernkamp, H. W. J., van Dam, A., van der Wegen, M., Lucas, L. V., Knowles, N., Jaffe, B., & Fregoso, T. A. (2017). Application of an unstructured 3D finite volume numerical model to flows and salinity dynamics in the San Francisco Bay-Delta. Estuarine, Coastal and Shelf Science, 192, 86–107. https://doi.org/10.1016/j.ecss.2017.04.024
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Vroom, J., van der Wegen, M., Martyr-Koller, R. C., & Lucas, L. V. (2017). What Determines Water Temperature Dynamics in the San Francisco Bay-Delta System? Water Resources Research, 53(11), 9901–9921. https://doi.org/10.1002/2016WR020062
Terms of Use
This SFBD-3D model is developed by IHE Delft and is sponsored by U.S. Geological Survey Pacific Coastal & Marine under contract G11PX-2112..
The data and models provided on this website are preliminary and are subject to revision. They are provided on the condition that neither Deltares USA, the U.S. Geological Survey nor the U.S. Government may be held liable for any damages resulting from the authorized or unauthorized use of the data.
You are entitled to run, amend, copy and distribute the San Francisco Bay-Delta Model under the conditions of the Creative Commons Attribution-ShareAlike 4.0 International License.
© 2017, IHE Delft Institute for Water Education and Deltares Netherlands.
