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This bathymetric dataset is intended to be used as a base component of studies in the Sacramento-San Joaquin Delta.
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 3.1, dated September 11, 2019.
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 as a base component of studies in the Sacramento-San Joaquin Delta.
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 3.1, dated September 11, 2019.
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 Hastings Tract and "Fong's Island" for the Bay Delta Office (BDO). The main purpose of the data is to replace outdated and inaccurate data, help with the evaluation of a large number of restoration proposals nearby, and supplement a December 2018 interferometric survey by USGS in adjacent waterways. This survey was cut short due to technical difficulties (later completed in July and August 2019). Numerous patches of heavy vegetation made it impossible to follow a neatly planned survey grid. </SPAN><SPAN>The data were collected in NAD83 (California State Plane Zone II coordinate system) and NAVD88 datums.</SPAN></P><P><SPAN>• Survey Dates: June 19, 2019 </SPAN></P><P><SPAN>• 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>• Related datasets: Little Hastings Tract Singlebeam, August 2019; Fong's Island (Kayak) Singlebeam, July 2019; USGS Cache Slough Complex Interferometric, December 2018 (EXTERNAL)</SPAN></P></DIV></DIV></DIV> |
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<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN><SPAN>Not for use as a navigation aid. The data reflects measurements taken at specific time periods and the Department of Water Resources makes no claim as to the current state of these waterways. Do not share or publish this data without including proper attribution.</SPAN></SPAN></P><P><SPAN /></P></DIV></DIV></DIV> |
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i06_Bathy_NCRO_20190619_LittleHastingsTract |
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["Sonar","Inland Waters","Little Hastings Tract","Fong's Island","Liberty Island","Cache Slough","Lindsey Slough","Single beam","Elevation","Bathymetry","June","2019","DWR GIS Atlas"] |
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en-US |
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150000000 |
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