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California Central Valley Groundwater-Surface Water Simulation Model – Fine Grid (C2VSimFG)

(Released on April 20, 2021) The C2VSimFG Version 1.01 of the California Central Valley Groundwater-Surface Water Simulation Model – Fine Grid (C2VSimFG) (C2VSimFG V1.01) is a minor update to the C2VSimFG V1.0 model released in December 2020. The California Central Valley Groundwater-Surface Water Simulation Model – Fine Grid (C2VSimFG) is a computer program that simulates water movement through the linked land surface, groundwater, and surface water flow systems in California’s Central Valley using the DWR-developed software, Integrated Water Flow Model Version 2015 (IWFM-2015). C2VSimFG Version 1.01 contains monthly historical stream inflows, surface water diversions, precipitation, evapotranspiration, and land use acreages from October 1973 through September 2015 (Data is available in the input files for 1922 through 2015). C2VSimFG Version 1.01 dynamically calculates crop water demands, allocates contributions from precipitation, soil moisture and surface water diversions, and calculates the groundwater pumping rates required to meet the remaining demand. It simulates the historical response of the Central Valley’s groundwater and surface water flow system to historical stresses and can also be used to simulate the response to projected stresses. DWR is providing C2VSimFG Version 1.01 to Groundwater Sustainable Agencies (GSAs) and other related entities as an optional tool that can be used to perform analysis during development and implementation of their Groundwater Sustainability Plans (GSPs).

Data files

Data title and descriptionAccess dataFile detailsLast updated

C2VSimFG V1.01 Model files

(Released on April 20, 2021) The C2VSimFG Version 1.01 of the California Central Valley Groundwater-Surface Water Simulation Model – Fine Grid (C2VSimFG) (C2VSimFG V1.01) is a minor update to the C2VSimFG V1.0 model released in December 2020. The California Central Valley Groundwater-Surface Water Simulation Model – Fine Grid (C2VSimFG) is a computer program that simulates water movement through the linked land surface, groundwater, and surface water flow systems in California’s Central Valley using the DWR-developed software, Integrated Water Flow Model Version 2015 (IWFM-2015). C2VSimFG Version 1.01 contains monthly historical stream inflows, surface water diversions, precipitation, evapotranspiration, and land use acreages from October 1973 through September 2015 (Data is available in the input files for 1922 through 2015). C2VSimFG Version 1.01 dynamically calculates crop water demands, allocates contributions from precipitation, soil moisture and surface water diversions, and calculates the groundwater pumping rates required to meet the remaining demand. It simulates the historical response of the Central Valley’s groundwater and surface water flow system to historical stresses and can also be used to simulate the response to projected stresses. DWR is providing C2VSimFG Version 1.01 to Groundwater Sustainable Agencies (GSAs) and other related entities as an optional tool that can be used to perform analysis during development and implementation of their Groundwater Sustainability Plans (GSPs).

DownloadZIP
08/11/23

Updated GIS shape files

(Released on April 20, 2021) The C2VSimFG Version 1.01 of the California Central Valley Groundwater-Surface Water Simulation Model – Fine Grid (C2VSimFG) (C2VSimFG V1.01) is a minor update to the C2VSimFG V1.0 model released in December 2020. The California Central Valley Groundwater-Surface Water Simulation Model – Fine Grid (C2VSimFG) is a computer program that simulates water movement through the linked land surface, groundwater, and surface water flow systems in California’s Central Valley using the DWR-developed software, Integrated Water Flow Model Version 2015 (IWFM-2015). C2VSimFG Version 1.01 contains monthly historical stream inflows, surface water diversions, precipitation, evapotranspiration, and land use acreages from October 1973 through September 2015 (Data is available in the input files for 1922 through 2015). C2VSimFG Version 1.01 dynamically calculates crop water demands, allocates contributions from precipitation, soil moisture and surface water diversions, and calculates the groundwater pumping rates required to meet the remaining demand. It simulates the historical response of the Central Valley’s groundwater and surface water flow system to historical stresses and can also be used to simulate the response to projected stresses. DWR is providing C2VSimFG Version 1.01 to Groundwater Sustainable Agencies (GSAs) and other related entities as an optional tool that can be used to perform analysis during development and implementation of their Groundwater Sustainability Plans (GSPs).

DownloadZIP
08/11/23

C2VSimFG Version 1.0 model files (Superseded by V1.01)

(Released on April 20, 2021) The C2VSimFG Version 1.01 of the California Central Valley Groundwater-Surface Water Simulation Model – Fine Grid (C2VSimFG) (C2VSimFG V1.01) is a minor update to the C2VSimFG V1.0 model released in December 2020. The California Central Valley Groundwater-Surface Water Simulation Model – Fine Grid (C2VSimFG) is a computer program that simulates water movement through the linked land surface, groundwater, and surface water flow systems in California’s Central Valley using the DWR-developed software, Integrated Water Flow Model Version 2015 (IWFM-2015). C2VSimFG Version 1.01 contains monthly historical stream inflows, surface water diversions, precipitation, evapotranspiration, and land use acreages from October 1973 through September 2015 (Data is available in the input files for 1922 through 2015). C2VSimFG Version 1.01 dynamically calculates crop water demands, allocates contributions from precipitation, soil moisture and surface water diversions, and calculates the groundwater pumping rates required to meet the remaining demand. It simulates the historical response of the Central Valley’s groundwater and surface water flow system to historical stresses and can also be used to simulate the response to projected stresses. DWR is providing C2VSimFG Version 1.01 to Groundwater Sustainable Agencies (GSAs) and other related entities as an optional tool that can be used to perform analysis during development and implementation of their Groundwater Sustainability Plans (GSPs).

DownloadZIP
12/06/23

GIS files

(Released on April 20, 2021) The C2VSimFG Version 1.01 of the California Central Valley Groundwater-Surface Water Simulation Model – Fine Grid (C2VSimFG) (C2VSimFG V1.01) is a minor update to the C2VSimFG V1.0 model released in December 2020. The California Central Valley Groundwater-Surface Water Simulation Model – Fine Grid (C2VSimFG) is a computer program that simulates water movement through the linked land surface, groundwater, and surface water flow systems in California’s Central Valley using the DWR-developed software, Integrated Water Flow Model Version 2015 (IWFM-2015). C2VSimFG Version 1.01 contains monthly historical stream inflows, surface water diversions, precipitation, evapotranspiration, and land use acreages from October 1973 through September 2015 (Data is available in the input files for 1922 through 2015). C2VSimFG Version 1.01 dynamically calculates crop water demands, allocates contributions from precipitation, soil moisture and surface water diversions, and calculates the groundwater pumping rates required to meet the remaining demand. It simulates the historical response of the Central Valley’s groundwater and surface water flow system to historical stresses and can also be used to simulate the response to projected stresses. DWR is providing C2VSimFG Version 1.01 to Groundwater Sustainable Agencies (GSAs) and other related entities as an optional tool that can be used to perform analysis during development and implementation of their Groundwater Sustainability Plans (GSPs).

DownloadZIP
12/06/23

C2VSimFG BETA2 Model Files (superseded by Version 1.0) )

(Released on April 20, 2021) The C2VSimFG Version 1.01 of the California Central Valley Groundwater-Surface Water Simulation Model – Fine Grid (C2VSimFG) (C2VSimFG V1.01) is a minor update to the C2VSimFG V1.0 model released in December 2020. The California Central Valley Groundwater-Surface Water Simulation Model – Fine Grid (C2VSimFG) is a computer program that simulates water movement through the linked land surface, groundwater, and surface water flow systems in California’s Central Valley using the DWR-developed software, Integrated Water Flow Model Version 2015 (IWFM-2015). C2VSimFG Version 1.01 contains monthly historical stream inflows, surface water diversions, precipitation, evapotranspiration, and land use acreages from October 1973 through September 2015 (Data is available in the input files for 1922 through 2015). C2VSimFG Version 1.01 dynamically calculates crop water demands, allocates contributions from precipitation, soil moisture and surface water diversions, and calculates the groundwater pumping rates required to meet the remaining demand. It simulates the historical response of the Central Valley’s groundwater and surface water flow system to historical stresses and can also be used to simulate the response to projected stresses. DWR is providing C2VSimFG Version 1.01 to Groundwater Sustainable Agencies (GSAs) and other related entities as an optional tool that can be used to perform analysis during development and implementation of their Groundwater Sustainability Plans (GSPs).

DownloadZIP
12/20/23

C2VSimFG BETA Model Files (superseded by Version BETA2) )

(Released on April 20, 2021) The C2VSimFG Version 1.01 of the California Central Valley Groundwater-Surface Water Simulation Model – Fine Grid (C2VSimFG) (C2VSimFG V1.01) is a minor update to the C2VSimFG V1.0 model released in December 2020. The California Central Valley Groundwater-Surface Water Simulation Model – Fine Grid (C2VSimFG) is a computer program that simulates water movement through the linked land surface, groundwater, and surface water flow systems in California’s Central Valley using the DWR-developed software, Integrated Water Flow Model Version 2015 (IWFM-2015). C2VSimFG Version 1.01 contains monthly historical stream inflows, surface water diversions, precipitation, evapotranspiration, and land use acreages from October 1973 through September 2015 (Data is available in the input files for 1922 through 2015). C2VSimFG Version 1.01 dynamically calculates crop water demands, allocates contributions from precipitation, soil moisture and surface water diversions, and calculates the groundwater pumping rates required to meet the remaining demand. It simulates the historical response of the Central Valley’s groundwater and surface water flow system to historical stresses and can also be used to simulate the response to projected stresses. DWR is providing C2VSimFG Version 1.01 to Groundwater Sustainable Agencies (GSAs) and other related entities as an optional tool that can be used to perform analysis during development and implementation of their Groundwater Sustainability Plans (GSPs).

DownloadZIP
12/20/23

Supporting files

Data title and descriptionAccess dataFile detailsLast updated

C2VSimFG V1.01 Release Note

C2VSimFG V1.01 Release Note summarizes the key updates and corrections.

PDF
08/11/23

DWR Report: California Central Valley Groundwater-Surface Water Simulation Model - Fine Grid (C2VSimFG) Development and Calibration Version 1.0

PDF
12/06/23

Road map to running C2Vsim

PDF
12/06/23

API endpoint

Dataset Name

Use the query web API to retrieve data with a set of basic parameters. Copy the API endpoint you need to start.

Usage documentation