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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 Department of Water Resources makes no warranties, representations or guarantees, either expressed or implied, as to the completeness, accuracy or correctness of the data, nor accepts or assumes any liability arising from its use. Any comments, problems, improvements, updates, or suggestions should be forwarded to 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 Department of Water Resources makes no warranties, representations or guarantees, either expressed or implied, as to the completeness, accuracy or correctness of the data, nor accepts or assumes any liability arising from its use. Any comments, problems, improvements, updates, or suggestions should be forwarded to 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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<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 The main purpose of the data is to replace outdated and inaccurate data, improve innudation mapping throughout the Delta and help with the evaluation of restoration proposals nearby.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><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_20190311_LittleMandeville |
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["Sonar","inland Waters","March","2019","Singlebeam","Little Mandeville Island","Old River","elevation","Bathymetry","DWR GIS Atlas"] |
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en-US |
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150000000 |
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