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Name: i06_Bathy_NCRO_20190619_LittleHastingsTract

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Description: <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 The main purpose of the data is to replace outdated and inaccurate data, help with the evaluation of a large number of restoration proposals nearby, and supplement a December 2018 interferometric survey by USGS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>

Copyright Text: California Department of Water Resources, Division of Regional Assistance, North Central Region Office, Hydrography and Technical Support Section.

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