SVSim: Sacramento Valley Groundwater-Surface Water Simulation Model
The Department of Water Resources (DWR) has developed a new model, the Sacramento Valley Groundwater-Surface Water Simulation Model (SVSim). This new model will support two important DWR programs and has two main goals: 1) Water Transfer Program - develop a tool that meets essential modeling requirements for evaluating project-specific impacts of groundwater substitution transfers on stream depletion in the Sacramento Valley and: 2) Sustainable Groundwater Management Program - develop a tool for evaluating water budgets, surface water-groundwater interactions, and sustainable groundwater management scenarios in the Sacramento Valley. The intended users of SVSim are DWR, water transfer projects, Groundwater Sustainability Agencies, local agencies, and all other interested parties. SVSim is an application of the Integrated Water Flow Model (IWFM-2015) numerical code and is based on DWR’s C2VSim model (2013). SVSim provides an updated analysis of geologic and hydrogeologic data for the Sacramento Valley and adjacent areas. The model domain includes the Sacramento Valley Groundwater Basin, the Redding Area Groundwater Basin, and the Delta. The southern model boundary lies between the Mokelumne and Calaveras Rivers. SVSim includes nine (9) layers of variable thickness that span the entire groundwater system. The base period of the model simulates conditions from 1973 to 2015. A calibrated version of SVSim Version 1.0 is now available. The model input files, output files/data, and the executable program for SVSim Version 1.0 are available for download below. Version 1.0 supersedes the SVSim Beta Version released in April 2020). Documentation of SVSim model design, input data development, and model calibration and sensitivity analysis is also available.
Data files
| Data title and description | Access data | File details | Last updated |
|---|---|---|---|
SVSim Version 1.0: Model Files The Department of Water Resources (DWR) has developed a new model, the Sacramento Valley Groundwater-Surface Water Simulation Model (SVSim). This new model will support two important DWR programs and has two main goals: 1) Water Transfer Program - develop a tool that meets essential modeling requirements for evaluating project-specific impacts of groundwater substitution transfers on stream depletion in the Sacramento Valley and: 2) Sustainable Groundwater Management Program - develop a tool for evaluating water budgets, surface water-groundwater interactions, and sustainable groundwater management scenarios in the Sacramento Valley. The intended users of SVSim are DWR, water transfer projects, Groundwater Sustainability Agencies, local agencies, and all other interested parties. SVSim is an application of the Integrated Water Flow Model (IWFM-2015) numerical code and is based on DWR’s C2VSim model (2013). SVSim provides an updated analysis of geologic and hydrogeologic data for the Sacramento Valley and adjacent areas. The model domain includes the Sacramento Valley Groundwater Basin, the Redding Area Groundwater Basin, and the Delta. The southern model boundary lies between the Mokelumne and Calaveras Rivers. SVSim includes nine (9) layers of variable thickness that span the entire groundwater system. The base period of the model simulates conditions from 1973 to 2015. A calibrated version of SVSim Version 1.0 is now available. The model input files, output files/data, and the executable program for SVSim Version 1.0 are available for download below. Version 1.0 supersedes the SVSim Beta Version released in April 2020). Documentation of SVSim model design, input data development, and model calibration and sensitivity analysis is also available. | Download | ZIP | 08/11/23 |
SVSim Texture Data The Department of Water Resources (DWR) has developed a new model, the Sacramento Valley Groundwater-Surface Water Simulation Model (SVSim). This new model will support two important DWR programs and has two main goals: 1) Water Transfer Program - develop a tool that meets essential modeling requirements for evaluating project-specific impacts of groundwater substitution transfers on stream depletion in the Sacramento Valley and: 2) Sustainable Groundwater Management Program - develop a tool for evaluating water budgets, surface water-groundwater interactions, and sustainable groundwater management scenarios in the Sacramento Valley. The intended users of SVSim are DWR, water transfer projects, Groundwater Sustainability Agencies, local agencies, and all other interested parties. SVSim is an application of the Integrated Water Flow Model (IWFM-2015) numerical code and is based on DWR’s C2VSim model (2013). SVSim provides an updated analysis of geologic and hydrogeologic data for the Sacramento Valley and adjacent areas. The model domain includes the Sacramento Valley Groundwater Basin, the Redding Area Groundwater Basin, and the Delta. The southern model boundary lies between the Mokelumne and Calaveras Rivers. SVSim includes nine (9) layers of variable thickness that span the entire groundwater system. The base period of the model simulates conditions from 1973 to 2015. A calibrated version of SVSim Version 1.0 is now available. The model input files, output files/data, and the executable program for SVSim Version 1.0 are available for download below. Version 1.0 supersedes the SVSim Beta Version released in April 2020). Documentation of SVSim model design, input data development, and model calibration and sensitivity analysis is also available. | Download | CSV | 08/11/23 |
SVSim Beta: Model Files (superseded by Version 1.0) The Department of Water Resources (DWR) has developed a new model, the Sacramento Valley Groundwater-Surface Water Simulation Model (SVSim). This new model will support two important DWR programs and has two main goals: 1) Water Transfer Program - develop a tool that meets essential modeling requirements for evaluating project-specific impacts of groundwater substitution transfers on stream depletion in the Sacramento Valley and: 2) Sustainable Groundwater Management Program - develop a tool for evaluating water budgets, surface water-groundwater interactions, and sustainable groundwater management scenarios in the Sacramento Valley. The intended users of SVSim are DWR, water transfer projects, Groundwater Sustainability Agencies, local agencies, and all other interested parties. SVSim is an application of the Integrated Water Flow Model (IWFM-2015) numerical code and is based on DWR’s C2VSim model (2013). SVSim provides an updated analysis of geologic and hydrogeologic data for the Sacramento Valley and adjacent areas. The model domain includes the Sacramento Valley Groundwater Basin, the Redding Area Groundwater Basin, and the Delta. The southern model boundary lies between the Mokelumne and Calaveras Rivers. SVSim includes nine (9) layers of variable thickness that span the entire groundwater system. The base period of the model simulates conditions from 1973 to 2015. A calibrated version of SVSim Version 1.0 is now available. The model input files, output files/data, and the executable program for SVSim Version 1.0 are available for download below. Version 1.0 supersedes the SVSim Beta Version released in April 2020). Documentation of SVSim model design, input data development, and model calibration and sensitivity analysis is also available. | Download | ZIP | 08/11/23 |
Supporting files
| Data title and description | Access data | File details | Last updated |
|---|---|---|---|
SVSim Version 1.0: Roadmap to Running SVSim This resource provides an overview of the process to run the SVSim Version 1.0 model including the preprocessor, simulation, budget, and Zbudget. It also describes the files generated by each module. CONTACT NAME: Chris Bonds CONTACT EMAIL: Chris.Bonds@water.ca.gov | PDF | 08/11/23 | |
SVSim Fact Sheet | PDF | 08/11/23 | |
SVSim TM-1A: Modeling Approach for C2VSIM Enhancement | PDF | 08/11/23 | |
SVSim TM-1B: Development of Hydrogeologic Conceptual Model and Aquifer Parameters | PDF | 08/11/23 | |
SVSim TM-2: Model Grid Development | PDF | 08/11/23 | |
SVSim TM-3: Input Data Development | PDF | 08/11/23 | |
SVSim TM-4: Model Calibration and Sensitivity Analysis | PDF | 08/11/23 | |
SVSim TM-5: Stream Depletion Calculation | PDF | 08/11/23 | |
Texture2Par User Manual | PDF | 09/27/23 | |
SVSim Texture Data SVSim Texture Data - Lithologic well and boring log data Development and use of the SVSim Texture Data is described in the SVSim Technical Memorandum TM-1B: [Development of Hydrogeologic Conceptual Model and Aquifer Parameters](https://data.cnra.ca.gov/dataset/5f06b5e9-39c2-411a-a39c-cc0e76e6a35f/resource/88c46c8e-db7d-40b5-b1ea-73898d7116f8/download/svsim-tm-1b_development-of-hydrogeologic-conceptual-model-and-aquifer-parameters_4-4-18.pdf) Tabs include • SVSim_Texture_Data • Data_Dictionary • Texture_Classifications • Additional_Notes_on_Data | XLSX | 08/11/23 | |
SVSim Beta: Roadmap to Running SVSim (superseded by Version 1.0) This resource provides an overview of the process to run the SVSim model including the preprocessor, simulation, budget and Zbudget. It also describes the files generated by each program. CONTACT NAME: Chris Bonds CONTACT EMAIL: Chris.Bonds@water.ca.gov | PDF | 08/11/23 | |
Texture2Par Program and examples Texture2Par is a software program developed to generate spatially distributed parameter inputs for numerical groundwater flow models by constructing a three-dimensional hydrogeological model of the aquifer system based on sediment texture information. | .ZIP | 08/01/24 | |
SVSim model GIS shape files SVSim model GIS shape files for model grid, stream network and small watersheds, etc. | .ZIP | 10/25/24 |