47860 ca_sfb14_mbs_bath-A-meta m8500 Data Set Published / External 37225 Benthic Project Completed 2014 These multi-beam bathymetric data were collected over shallow subtidal areas in the San Francisco Bay estuary system. Bathymetric and acoustic backscatter data were collected simultaneously in 84 survey blocks. Seventy five of these blocks were surveyed with 100% cover of backscatter imagery and nine blocks were surveyed with 50% backscatter coverage. These data were collected as source material for planned benthic habitat mapping. An earlier project had been completed to map the very-shallow subtidal and intertidal areas. These mosaics were collected with the Reson Seabat 7101 multibeam sonar system in the San Francisco Bay. For this San Francisco Bay habitat mapping project, seven survey blocks were acquired with the Reson 7101 sonar, as these seven areas contained water depths that were predominantly deeper than 20 meters. Original contact information: Contact Name: Jen Eckerle Contact Org: California Ocean Protection Council (OPC) Title: Deputy Director, OPC Phone: 916-653-9416 Email: jen.eckerle@resources.ca.gov The primary purpose of this acoustic bathymetry acquisition is to provide the California Ocean Protection Council (OPC), as required for the California Seafloor Mapping Program (CSMP) modern, accurately positioned sonar imagery data of San Francisco Bay coastal and near shore waters to delineate marine habitat types. Secondarily, the survey shall provide OPC and NOAA with bathymetric survey data from a combination of multi-beam and interferometric sonars. The combined survey data, including the imagery and the bathymetry, will support OPC's goals as well as assist with NOAA's mandate for port and harbor maintenance (dredging), coastal engineering (beach erosion and replenishment studies), and coastal zone management. 10018 Seven survey blocks in Area A were acquired with a Reson 7101 multibeam sonar. The bathymetric products are organized by these blocks. The blocks represent the priority areas determined by the project partners and were arranged to avoid areas where data had already been collected. Data for each block was collected on the following dates. Block CA1B08 was acquired between 12/21/2014 and 12/21/2014. Block CA1B09 was acquired between 12/21/2014 and 12/21/2014. Block CA1B22 was acquired between 12/13/2014 and 12/16/2014. Block CA1B24 was acquired between 12/10/2014 and 12/13/2014. Block CA1B26 was acquired between 12/14/2014 and 12/15/2014. Block NA1B15 was acquired between 12/16/2014 and 12/21/2014. Block NA1B23 was acquired between 12/18/2014 and 12/18/2014. Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > BENTHIC Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > COASTAL Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > ESTUARY Theme ISO 19115 Topic Category elevation Theme ISO 19115 Topic Category geoscientificInformation Theme ISO 19115 Topic Category imageryBaseMapsEarthCover Theme ISO 19115 Topic Category oceans Spatial Global Change Master Directory (GCMD) Location Keywords CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > CALIFORNIA Theme California Ocean Protection Council Theme California Seafloor Mapping Program (CSMP) Theme Reson Seabat 7101 Spatial Geographic Names Information System California Spatial Geographic Names Information System Contra Costa County Spatial Geographic Names Information System Marin County Spatial Geographic Names Information System San Francisco Bay Spatial Geographic Names Information System San Francisco County Spatial Geographic Names Information System San Mateo County Spatial Geographic Names Information System Solano County Spatial Geographic Names Information System United States Office for Coastal Management Charleston SC Data Set As Needed Map (digital) California Ocean Protection Council (OPC) and Fugro Pelagos, Inc. Data Steward 2017-02-13 Organization NOAA Office for Coastal Management NOAA/OCM coastal.info@noaa.gov 2234 South Hobson Ave Charleston SC 29405-2413 (843) 740-1202 https://coast.noaa.gov NOAA Office for Coastal Management Home Page Online Resource Distributor 2017-02-13 Organization NOAA Office for Coastal Management NOAA/OCM coastal.info@noaa.gov 2234 South Hobson Ave Charleston SC 29405-2413 (843) 740-1202 https://coast.noaa.gov NOAA Office for Coastal Management Home Page Online Resource Metadata Contact 2017-02-13 Organization NOAA Office for Coastal Management NOAA/OCM coastal.info@noaa.gov 2234 South Hobson Ave Charleston SC 29405-2413 (843) 740-1202 https://coast.noaa.gov NOAA Office for Coastal Management Home Page Online Resource Point of Contact 2017-02-13 Organization NOAA Office for Coastal Management NOAA/OCM coastal.info@noaa.gov 2234 South Hobson Ave Charleston SC 29405-2413 (843) 740-1202 https://coast.noaa.gov NOAA Office for Coastal Management Home Page Online Resource Ground Condition -122.457918 -122.22641 38.066568 37.707297 Range 2014-12-10 2014-12-21 Yes Unclassified None These bathymetry files depict the existing conditions of the seafloor at the time of the survey and are only accurate for that time. Use of these products is to be determined by the California Ocean Protection Council. https://coast.noaa.gov/dataviewer/#/lidar/search/where:id=8500 2017-02-13 Organization NOAA Office for Coastal Management Custom Download Custom Download application that allows area subset and projection changes. Zip Zip https://ocmgeodatastor1.blob.core.windows.net/benthic-data/Benthic/Shallow_Water_Bathymetry/CA_SanFranciscoBay_mbs_bath-A.zip Zip https://noaa-nos-coastal-lidar-pds.s3.us-east-1.amazonaws.com/dem/SF_mbs_areaA_2014_8500/NCNP0000-14-01192_DR.pdf Main Survey Report Online Resource pdf Descriptive Report to Accompany Survey – San Francisco Bay Habitat Mapping https://noaa-nos-coastal-lidar-pds.s3.us-east-1.amazonaws.com/dem/SF_mbs_areaA_2014_8500/report_of_survey.zip All survey reports Online Resource zip Zip file containing the full report of survey documentation. 2017-02-13 Date that the source FGDC record was last modified. 2017-11-14 Converted from FGDC Content Standard for Digital Geospatial Metadata (version FGDC-STD-001-1998) using 'fgdc_to_inport_xml.pl' script. Contact Tyler Christensen (NOS) for details. 2018-02-08 Partial upload of Positional Accuracy fields only. 2018-04-11 Partial upload to move data access FTP links to Distribution Info and remove broken URLs. Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.1.1.3143 These data are not attributed. Multi-beam data met IHO Order 1A specifications, meaning the horizontal accuracy of multibeam data had to be within 5 meters + 5% of depth. The actual horizontal accuracy of the bathymetry exceeded these requirements, as the navigation/position data for the vessel was post-processed using an Applanix SmartBase post-processed kinematic solution, resulting in vessel horizontal positioning RMS values under 5 centimeters. Likewise, the vessel equipment offsets were measured to an accuracy of approximately 1 centimeter (1 sigma level) using a Total Station. Vessel roll and pitch were measured to an accuracy of approximately 0.02 degrees (1 sigma level) using an Applanix POS MV. These factors created highly accurate horizontal positioning of the data that exceeded IHO Order 1A standards. Overlapping features in the bathymetry were examined to confirm accuracy standards were met.; Quantitative Value: 0.6 meters, Test that produced the value: Approximated maximum total propagated uncertainty in meters Multibeam data met IHO Order 1A specifications. QC procedures confirmed that these standards were met or exceeded. QC procedures included bar check calibrations, tide comparisons of observed tides vs. GPS-derived tides, analysis of propagated uncertainty in the CARIS CSAR surface, and IHO Order 1A crossline analysis.; Quantitative Value: 0.6 meters, Test that produced the value: Maximum Total Propagated Uncertainty in meters The data set was derived after manually rejecting erroneous soundings. The final bathymetric product was generated using a CUBE surface model of the cleaned bathymetry. QC procedures confirmed that these standards were met or exceeded. QC procedures included bar check calibrations, tide comparisons of observed tides vs. GPS-derived tides, analysis of propagated uncertainty in the CARIS CSAR surface, and IHO Order 1A crossline analysis. Raw multi-beam data Organization Fugro Pelagos, Inc. Originator 1 Multi-beam bathymetry data acquisition. These bathymetry data were acquired in S7K files using a Reson Seabat 7101. 2 Multi-beam bathymetry data processing. The bathymetry was processed in CARIS HIPS software to correct for post-processed navigation/positioning, tides, sound velocity, calibration values, and noise. After processing in CARIS HIPS, CUBE base surfaces in the CSAR file format were generated at a 1-meter bin size for each survey block. These CSAR surfaces were exported to BAG format, ESRI Grid format, and color-coded geo-tiff formats. More detailed information on data processing can be found in the project Data Acquisition and Processing Report NCNP0000-14-01192_DAPR.pdf 2015-03-31T00:00:00 Raw multi-beam data 3 For ingestion into the Digital Coast Data Access Viewer, the elevation component of the *.bag files was translated into GeoTIFF format. The custom download will use these GeoTIFF files. 2020-01-24T00:00:00 Organization NOAA Office for Coastal Management NOAA/OCM coastal.info@noaa.gov 2234 South Hobson Ave Charleston SC 29405-2413 (843) 740-1202 https://coast.noaa.gov NOAA Office for Coastal Management Home Page Online Resource gov.noaa.nmfs.inport:47860 Anne Ball 2017-11-14T12:57:15 Jesse Brass 2026-06-19T19:24:18 2024-01-10 Office for Coastal Management OCM 1002 Public No No 2018-04-11 1 Year 2019-04-11