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This data represents the centroid of the finite element mesh of the Fine-Grid California Central Valley Groundwater - Surface Water Flow Model (C2VSimFG). The purpose of the dataset is to allow the Sustainable Groundwater Management Act (SGMA) interested parties and the public to use the C2VSimFG's output data to assist in the implementation of their groundwater sustainability plan. The associated data are considered DWR enterprise GIS data, which meet all appropriate requirements of the DWR Spatial Data Standards, specifically the DWR Spatial Data Standard version 3.2, dated September 10, 2021. DWR makes no warranties or guarantees — either expressed or implied — as to the completeness, accuracy, or correctness of the data. DWR neither accepts nor assumes liability arising from or for any incorrect, incomplete, or misleading subject data. Comments, problems, improvements, updates, or suggestions should be forwarded to GIS@water.ca.gov. |
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This data represents the centroid of the finite element mesh of the Fine-Grid California Central Valley Groundwater - Surface Water Flow Model (C2VSimFG). The purpose of the dataset is to allow the Sustainable Groundwater Management Act (SGMA) interested parties and the public to use the C2VSimFG's output data to assist in the implementation of their groundwater sustainability plan. The associated data are considered DWR enterprise GIS data, which meet all appropriate requirements of the DWR Spatial Data Standards, specifically the DWR Spatial Data Standard version 3.2, dated September 10, 2021. DWR makes no warranties or guarantees — either expressed or implied — as to the completeness, accuracy, or correctness of the data. DWR neither accepts nor assumes liability arising from or for any incorrect, incomplete, or misleading subject data. Comments, problems, improvements, updates, or suggestions should be forwarded to GIS@water.ca.gov. |
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Department of Water Resources, Sustainable Groundwater Management Office, Modeling and Support Tools Section and the Bay Delta Office, Modeling Support Branch |
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5000 |
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<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>There is a total of 32, 537 elements (centroids) within the C2VSimFG model, which make up the finite element mesh of the model. The elements are subdivided into 21 subregions. Each element is composed of corresponding groundwater nodes within the model domain. The model domain area is 20, 742 square miles, and the average element size is roughly 407 acres. The boundaries of the model grid were developed using a set of control points at important locations of the model area. The finite grid mesh was created using GIS and several Excel and FORTRAN utilities. The grid size was refined in areas of higher groundwater gradient and/or areas that are more critical from hydrogeological viewpoints. The grid lines are designed parallel to the streamflow direction, when possible, as well as the groundwater streamlines, to capture the surface and subsurface drainage patterns. Nine major faults in the Central Valley are represented by thin strip of elements of around 500 feet. The dataset excludes three geologic outcrops: Sutter Buttes, Kettleman Hills and Capay Valley Hills, which are areas not included in the Bulletin 118. The dataset is maintained by the Sustainable Groundwater Management Office, Modeling and Tools Support Section.</SPAN></P></DIV></DIV></DIV> |
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<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Reference should be made to the Department of Water Resources, Sustainable Groundwater Management Office, Modeling and Support Tools Section as the originator of this data.</SPAN></P><P STYLE="margin:0 0 11 0;"><SPAN>The original source projection of the DWR GIS atlas dataset was WGS 1984 Web Mercator. For copies of data in original projection, please contact DWR directly.</SPAN></P></DIV></DIV></DIV> |
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i08_C2VSimFG_Element_Centroids |
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["C2VSimFG","Central Valley","flow","Groundwater Analysis","groundwater","centroids","Hydrological Model","Mesh Grid","Finite Elements","Centroids","DWR GIS Atlas"] |
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en-US |
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150000000 |
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