| snippet:
|
This singlebeam sonar dataset is intended to be used as a check of multibeam data collected on the same date.
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. |
| summary:
|
This singlebeam sonar dataset is intended to be used as a check of multibeam data collected on the same date.
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. |
| accessInformation:
|
California Department of Water Resources, Division of Regional Assistance, North Central Region Office, Hydrography and Technical Support Section. |
| thumbnail:
|
|
| maxScale:
|
5000 |
| typeKeywords:
|
[] |
| 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 targeted singlebeam bathymetric survey on the Sacramento River near Clarksburg for the Delta Conveyance Office. This singlebeam data is not intended to provide enough points to interpolate a surface, the main purpose of the data is to serve as an independent check on multibeam data collected on the same date. The survey was conducted in tandem with the multibeam survey with the singlebeam vessel trailing just beyond the turbulent influence of the lead vessel, about 100 yards. The echosounder was operated 200 kHz, and may penetrate slightly further into the bed substrate than the 455 kHz multibeam sonar. </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 Date: April 17, 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: Sacramento River at Clarksburg (multibeam), April 2019</SPAN></P></DIV></DIV></DIV> |
| licenseInfo:
|
<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 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> |
| catalogPath:
|
|
| title:
|
i06_Bathy_NCRO_20190417_SacramentoRiver_at_Clarksburg |
| type:
|
|
| url:
|
|
| tags:
|
["Sonar","Inland Waters","April","2019","Singlebeam","Elevation","Sacramento River","Clarksburg","Hood","Bathymetry","DWR GIS Atlas"] |
| culture:
|
en-US |
| portalUrl:
|
|
| name:
|
|
| guid:
|
|
| minScale:
|
150000000 |
| spatialReference:
|
|