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This bathymetric dataset is intended to be used to assess reservoir conditions and sedimentation rates in components of the California State Water Project.
This is an official DWR enterprise GIS data, which meets all appropriate requirements of the DWR Spatial Data Standards, specifically the DWR Spatial Data Standard version 3.3, dated April 13, 2022. 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 bathymetric dataset is intended to be used to assess reservoir conditions and sedimentation rates in components of the California State Water Project.
This is an official DWR enterprise GIS data, which meets all appropriate requirements of the DWR Spatial Data Standards, specifically the DWR Spatial Data Standard version 3.3, dated April 13, 2022. 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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California Department of Water Resources, Division of Regional Assistance, North Central Region Office, Hydrography and Technical Support Section. |
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5000 |
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<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>The California Department of Water Resources (DWR), North Central Region Office (NCRO), Bathymetry Data Collection Section, conducted a bathymetric survey of Bethany Reservoir for the Delta Field Division (DFD). The main purpose of the data is to provide an updated reservoir elevation surface, assess sedimentation at key infrastructure components and to develop a revised storage capacity curve. This singlebeam data was collected in shallow, vegetated areas to supplement coincident multibeam bathymetry. </SPAN></P><P><SPAN><SPAN>Original field survey datum </SPAN></SPAN><SPAN>& Coordinate System</SPAN><SPAN><SPAN>horizontal: </SPAN></SPAN><SPAN>North American Datum of 1983, NAD83(2011) NGS CORS Epoch 2010.0000, California State Plane Coordinate System, Zone 3. Units are U.S. Survey Feet and vertical: Elevations established in this survey are on the North American Vertical Datum of 1988, NAVD88, as derived from applying GEOID12A to NAD83(2011) NGS CORS Epoch 2010.0000 ellipsoid heights are U.S. Survey Feet and </SPAN><SPAN><SPAN>have been converted to California Teale Albers, NAD83 at time of field survey data import.</SPAN></SPAN></P><P><SPAN>• Survey Date: June 22, 2021 </SPAN></P><P><SPAN>• Instrumentation: Singlebeam echo sounder with Inertially-Aided Post-Processed Kinematic (IAPPK) GPS procedures. </SPAN></P><P><SPAN>• Along Track Point Spacing: about 1 foot </SPAN></P><P><SPAN>• Related datasets: Bethany Reservoir Multibeam June 2021, Bethany Reservoir Interpolated Bathymetry June 2021</SPAN></P></DIV></DIV></DIV> |
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<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Not to be used for navigation.</SPAN></P><P STYLE="margin:0 0 11 0;"><SPAN>The original source projection of the DWR GIS atlas dataset was California Teale Albers, NAD83. For copies of data in original projection, please contact DWR directly.</SPAN></P></DIV></DIV></DIV> |
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i06_Bathy_NCRO_20210623_BethanyReservoir |
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["Sonar","Inland Waters","Singlebeam","June 2021","Elevation","Bethany Reservoir","California Aqueduct","South Bay Aqueduct","Bathymetry","DWR GIS Atlas"] |
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en-US |
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150000000 |
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