Rikk Kvitek Aaron Cole Guy R. Cochrane 20220607 GeoTIFF data release DOI:10.5066/P9ZSTUK1 Pacific Coastal and Marine Science Center, Santa Cruz, California U.S. Geological Survey https://doi.org/10.5066/P9ZSTUK1 Guy R. Cochrane Aaron Cole Meghan Sherrier Sean Hallahan 2022 data release DOI:10.5066/P9ZSTUK1 Pacific Coastal and Marine Science Center, Santa Cruz, CA U.S. Geological Survey https://doi.org/10.5066/P9ZSTUK1 This part of USGS Data Series 781 (Golden, 2019) presents 2-m-resolution bathymetry data for the Offshore of Point Estero, California, map area. Bathymetry data were collected by Fugro Pelagos in 2008 using a combination of 400-kHz Reson 7125, 240-kHz Reson 8101, and 100-kHz Reson 8111 multibeam echosounder systems. The data were post-processed by the California State University Monterey Bay Seafloor Mapping Lab and the University of California Santa Cruz Center for Integrated Spatial Research. The bathymetry data are available as a georeferenced TIFF image. The surveys were conducted to map surficial geology and benthic habitat as part of the USGS California Seafloor Mapping Program (CSMP), a collaboration with California State University Monterey Bay (CSUMB) and the National Oceanic and Atmospheric Administration (NOAA). These data are intended to provide regional bathymetric information in California State waters for offshore resource and ecosystem management. These data are also intended for science researchers, students, policy makers, and the general public. These data can be used with geographic information systems or other software to help identify geomorphologic features and surficial lithology. These data are not intended to be used for navigation. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this Federal Geographic Data Committee-compliant metadata file is intended to document the data set in nonproprietary form, as well as in Esri format, this metadata file may include some Esri-specific terminology. 2008 ground condition at time data were collected. Complete none planned -121.125864 -120.927262 35.545424 35.376751 USGS Metadata Identifier USGS:a2261dbc-9718-4d29-aeaf-0e5bdf394019 ISO 19115 Topic Category geoscientificInformation elevation USGS Thesaurus sea-floor characteristics bathymetry bathymetry measurement geospatial datasets marine geophysics multibeam sonar image mosaics Data Categories for Marine Planning Bathymetry and Elevation Marine Realms Information Bank (MRIB) keywords seabed field observation none U.S. Geological Survey USGS Coastal and Marine Hazards and Resources Program CMHRP Pacific Coastal and Marine Science Center PCMSC Geographic Names Information System (GNIS) State of California Point Estero San Luis Obispo County None USGS-authored or produced data and information are in the public domain from the U.S. Government and are freely redistributable with proper metadata and source attribution. Please recognize and acknowledge the U.S. Geological Survey, the California State University Monterey Bay Seafloor Mapping Lab, and the University of California Center for Integrated Spatial Research as the originators of the dataset and in products derived from these data. This information is not intended for navigation purposes. U.S. Geological Survey, Pacific Coastal and Marine Science Center PCMSC Science Data Coordinator mailing and physical

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Santa Cruz CA 95060 831-427-4747 pcmsc_data@usgs.gov Bathymetry_OffshorePointEstero.jpg Quick view image of the bathymetry data in the offshore of Point Estero study area JPEG Caris HIPS, ArcGIS (ver. 10.8.2), Windows 10. Nadine Golden 2019 database Data Series DS 781 Reston, VA U.S. Geological Survey Golden, N.E., compiler, 2019, California State Waters Map Series Data Catalog, https://doi.org/10.3133/ds781 https://doi.org/10.3133/ds781 California State University, Monterey Bay, Seafloor Mapping Lab 2016 California State University, Monterey Bay, Seafloor Mapping Lab, 2016, Southern California 2008 CSMP surveys: California State University, Monterey Bay, Seafloor Mapping Lab Data Library http://seafloor.otterlabs.org/SFMLwebDATA_SURVEYMAP.htm Not applicable for raster data. No formal logical accuracy tests were conducted. Dataset is considered complete for the area mapped with MBES data. The POS MV position and motion compensation system has a horizontal positional accuracy of about 0.5 m with DGPS corrections and roll and pitch accuracies of about 0.02 degrees (http://www.measutronics.com/wp-content/uploads/2011/01/posmv320_specifications.pdf). Accuracies of final products may be lower due to water depth and total propagated uncertainties of the mapping systems, which include sonar system, position and motion compensation system, and navigation, as well as data processing that includes sounding cleaning, gridding, and datum transformations. Estimated to be no less than 20 cm, owing to water depth and total propagated uncertainties of the mapping systems, which include sonar system, position and motion compensation system, and navigation, as well as data processing that includes sounding cleaning, gridding, and datum transformations. Multibeam echosounder (MBES) data were collected by Fugro Pelagos in 2008 using a combination of 400-kHz Reson 7125, 240-kHz Reson 8101, and 100-kHz Reson 8111 multibeam echosounder systems. An Applanix POS-MV (Position and Orientation System for Marine Vessels) was used to accurately position the vessels during data collection, and it also accounted for vessel motion such as heave, pitch, and roll, with navigational input from GPS receivers. Smoothed Best Estimated Trajectory (SBET) files were postprocessed from logged POS-MV files. Sound-velocity profiles were collected with an Applied Microsystems (AM) SVPlus sound velocimeter. Soundings were corrected for vessel motion using the Applanix POS-MV data, for variations in water-column sound velocity using the AM SVPlus data, and for variations in water height (tides) and heave using the postprocessed SBET data (California State University, Monterey Bay, Seafloor Mapping Lab, 2016). The raw bathymetry data were processed into mosaics using Caris HIPS. The bathymetry mosaics were then exported as two georeferenced TIFF images, a 2-meter resolution image for depths less than 80 meters and a 5-meter resolution image for deeper areas. The images were subsequently mosaiced into a single 2-meter resolution image for this data release. 2016 The 2-m-resolution bathymetry images were mosaiced and clipped into a single geotiff mosaic for the study area by the University of California Santa Cruz Center for Integrated Spatial Research using ArcGIS 10. 2022 Raster Grid Cell 9176 9201 1 Universal Transverse Mercator 10 0.9996 -123.00000 0.00000 500000.0 0.00 coordinate pair 10.0 10.0 Meters D_WGS_1984 WGS_844 6378137.00 298.257223563 value Depth as a digital value Producer defined The complete 2-m resolution Offshore of Point Estero bathymetry raster has a minimum (deepest depth) value of -148.7 meters and a maximum (shallowest depth) value of -0.450586 meters. U.S. Geological Survey U.S. Geological Survey - CMGDS Mailing and Physical

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Santa Cruz CA 95060 831-427-4747 pcmsc_data@usgs.gov These data are available in GeoTIFF format (Bathymetry_OffshorePointEstero.tif), along with a tif world file (.tfw) and CSDGM FGDC-compliant metadata. Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. GeoTIFF ArcMap (version 10.8.2) Downloadable zip file contains the GeoTIFF (.tif), and the projection file (.tfw). Windows 10 Zip 72.3 https://doi.org/10.5066/P9ZSTUK1 https://doi.org/10.3133/ds781 The bathymetry data can be downloaded by going to the first Network_Resource_Name link, then scrolling down to the Multibeam Data section. The second link points to a landing page for the entire California State Waters Map Series Data Catalog. None The downloadable data file has been compressed with the Windows 10 "zip" command and can be unzipped using Windows File Explorer or with Winzip (or other tools). To utilize these data, the user must have software capable importing and viewing a GeoTIFF file. 20220607 U.S. Geological Survey, Pacific Coastal and Marine Science Center PCMSC Science Data Coordinator mailing and physical

2885 Mission Street

Santa Cruz CA 95060 831-427-4747 pcmsc_data@usgs.gov Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998