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This singlebeam bathymetric dataset is intended to be used as a base component of studies in the Sacramento-San Joaquin Delta and to supplement additional bathymetry for the same island completed on 4/23/2019.
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 3.6, dated September 27, 2023. 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 singlebeam bathymetric dataset is intended to be used as a base component of studies in the Sacramento-San Joaquin Delta and to supplement additional bathymetry for the same island completed on 4/23/2019.
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 3.6, dated September 27, 2023. 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 (CA-DWR), North Central Region Office (NCRO), Bathymetry Data Collection Section, conducted a bathymetric survey of Little Mandeville Island for the Bay Delta Office (BDO). The main purpose of the data is to replace outdated and inaccurate data, improve innudation mapping throughout the Delta and help with the evaluation of restoration proposals nearby. This dataset is from kayak-mounted singlebeam sonar for the northwest corner of the Island and is meant to supplement a grid of multibeam strips for the remainder of the Island. </SPAN><SPAN><SPAN>The data were collected in NAD83 (California State Plane Zone III coordinate system) and NAVD88 datums.</SPAN></SPAN></P><P><SPAN>• Survey Dates: March 11, 2019 </SPAN></P><P><SPAN STYLE="font-size:12pt">• Instrumentation: Singlebeam echo sounder with Inertially-Aided Post-Processed Kinematic (IAPPK) GPS procedures</SPAN></P><P><SPAN>• Point Spacing: about 1 Foot</SPAN></P><P><SPAN>• Horizontal Units: US Foot</SPAN></P><P><SPAN>• Vertical Units: US Foot</SPAN></P><P><SPAN STYLE="font-size:10pt">• Related datasets: Little Mandeville Island, April 2019 -- multibeam grid; Little Mandeville Island, June 2020 -- multibeam data for levee breaches</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></DIV></DIV></DIV> |
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atlas_wmas.SDE.i06_Bathy_NCRO_20190311_LittleMandeville |
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["Sonar","inlandWaters","March","2019","Singlebeam","Little Mandeville Island","Old River","elevation","Bathymetry"] |
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en-US |
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150000000 |
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