Metadata: Identification_Information: Citation: Citation_Information: Originator: Guy R. Cochrane Originator: David P. Finlayson Originator: Evan T. Dailey Publication_Date: 2018 Title: Bathymetry data collected in 2007 from the San Miguel Passage in the Channel Islands, California Geospatial_Data_Presentation_Form: TIFF Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/F78G8HVC Publication_Information: Publication_Place: Pacific Coastal and Marine Science Center, Santa Cruz, California Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.5066/F78G8HVC Online_Linkage: https://www.sciencebase.gov/catalog/file/get/5b4f8e16e4b06a6dd1844499 Larger_Work_Citation: Citation_Information: Originator: Guy R. Cochrane Originator: David P. Finlayson Originator: Evan T. Dailey Publication_Date: 2018 Title: Bathymetry and acoustic backscatter data collected in 2007 from the San Miguel Passage in the Channel Islands, California Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/F78G8HVC Publication_Information: Publication_Place: Pacific Coastal and Marine Science Center, Santa Cruz, CA Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.5066/F78G8HVC Description: Abstract: This portion of the data release presents bathymetry data from the San Miguel Passage, in the Channel Islands, California. Bathymetry data were collected in the San Miguel Passage, Channel Islands, California in August 2007 by the U.S. Geological Survey, Pacific Coastal and Marine Science Center (USGS, PCMSC). Collection was accomplished using a 234.5 kHz SEA (AP) Ltd. SWATHplus-M phase-differencing sidescan sonar mounted on the NOAA, Channel Islands National Marine Sanctuary R/V Shearwater as part of the USGS research cruise S-2-07-SC. Data were collected in water depths up to 89 meters. The San Miguel Passage is within the Channel Islands National Marine Sanctuary and is the body of water between the two western-most islands of the chain - Santa Rosa and San Miguel Islands. The data were processed at the USGS, PCMSC to create a 2-meter resolution TIFF raster, presented here. Purpose: These data were collected to characterize seafloor substrate types in the nearshore waters southwest of Santa Rosa Island in the Channel Islands National Marine Sanctuary. Supplemental_Information: Additional information about the field activity from which these data were derived is available online at: http://cmgds.marine.usgs.gov/fan_info.php?fan=S207SC 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. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20070806 Ending_Date: 20070818 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -120.312 East_Bounding_Coordinate: -120.182 North_Bounding_Coordinate: 34.018 South_Bounding_Coordinate: 33.895 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:5b4f8e16e4b06a6dd1844499 Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: elevation Theme_Keyword: oceans Theme: Theme_Keyword_Thesaurus: Data Categories for Marine Planning Theme_Keyword: Bathymetry and Elevation Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: bathymetry Theme_Keyword: bathymetry measurement Theme_Keyword: sea-floor characteristics Theme_Keyword: geospatial datasets Theme_Keyword: marine geophysics Theme_Keyword: interferometric sonar Theme: Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords Theme_Keyword: seabed Theme_Keyword: multibeam echo sounder Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: Coastal and Marine Geology Program Theme_Keyword: CMGP Theme_Keyword: Pacific Coastal and Marine Science Center Theme_Keyword: PCMSC Place: Place_Keyword_Thesaurus: Geographic Names Information System (GNIS) Place_Keyword: Channel Islands National Park Place_Keyword: Channel Islands Place_Keyword: Pacific Ocean Access_Constraints: None Use_Constraints: 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 as the originator of the dataset and in products derived from these data. This information is not intended for navigation purposes. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey, Pacific Coastal and Marine Science Center Contact_Person: PCMSC Science Data Coordinator Contact_Address: Address_Type: mailing and physical Address: 2885 Mission Street City: Santa Cruz State_or_Province: CA Postal_Code: 95060 Contact_Voice_Telephone: 831-460-4747 Contact_Electronic_Mail_Address: pcmsc_data@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: https://www.sciencebase.gov/catalog/file/get/5b4f8e16e4b06a6dd1844499?name=Bathymetry_SanMiguelPassage.jpg&allowOpen=true Browse_Graphic_File_Description: Image map of study area with bathymetric DEM Browse_Graphic_File_Type: JPG Data_Set_Credit: Data collection was funded by U.S. Geological Survey Native_Data_Set_Environment: Microsoft Windows 7 Service Pack 1 with Esri ArcGIS version 10.5.0.6491 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: No formal attribute accuracy tests were conducted. See spatial accuracy for vertical and horizontal accuracies. Logical_Consistency_Report: All data fall within expected ranges. Completeness_Report: Dataset is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Estimated to be no less than 2 m, 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. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: Estimated to be no less than 5 percent water depth, 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. Lineage: Process_Step: Process_Description: Data Collection: Bathymetry and acoustic-backscatter data were collected in 2007 using a 234.5 kHz SEA (AP) Ltd. SWATHplus-M phase-differencing sidescan sonar, mounted on the NOAA CINMS R/V Shearwater. Data were acquired and processed onboard using SEA Swath Processor (version 2.05) and SEA Grid Processor (version 2.05). Sound velocity profiles (SVPs) were collected with an Applied Micro Systems, SvPlus. The survey vessel was equipped with a dual antenna GPS compass and inertial attitude sensor: F180 Control Software (version 2.04), and the navigation application YONAV2 (version 1.19). GPS navigation data were post-processed with GrafNav (version 7.8) from Waypoint Navigation (NovAtel). Navigation data were processed in both forward and reverse. Process_Date: 20070831 Process_Step: Process_Description: Data Gridding: The survey line files were imported into Caris HIPS and SIPS software (version 7.1.2), processed, filtered, and gridded into a 2-meter resolution base surface using the swath angle method. The base surface was exported as a TIFF file in UTM-10 coordinates referenced to the NAD83 ellipsoid. The TIFF file was imported into a Geographic Information System (Esri, ArcMap) and exported as a TIFF file with a TFW file defining the data’s geographic location and coordinate system. Process_Date: 20070831 Process_Step: Process_Description: Edited metadata to add keywords section with USGS persistent identifier as theme keyword. No data were changed. Process_Date: 20201019 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: VeeAnn A. Cross Contact_Position: Marine Geologist Contact_Address: Address_Type: Mailing and Physical Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Contact_Voice_Telephone: 508-548-8700 x2251 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: vatnipp@usgs.gov Process_Step: Process_Description: Performed minor edits to the metadata to correct typos. No data were changed Process_Date: 20211013 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Susan A. Cochran Contact_Position: Geologist Contact_Address: Address_Type: Mailing and Physical Address: 2885 Mission Street City: Santa Cruz State_or_Province: CA Postal_Code: 95060 Contact_Voice_Telephone: 831-460-7545 Contact_Electronic_Mail_Address: scochran@usgs.gov Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Raster Raster_Object_Information: Raster_Object_Type: Grid Cell Row_Count: 6239 Column_Count: 5654 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 10 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -123.0 Latitude_of_Projection_Origin: 0.0 False_Easting: 500000.0 False_Northing: 0.0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 2.0 Ordinate_Resolution: 2.0 Planar_Distance_Units: METERS Geodetic_Model: Horizontal_Datum_Name: D_North_American_1983 Ellipsoid_Name: GRS 80 Semi-major_Axis: 6378137 Denominator_of_Flattening_Ratio: 298.257222101 Vertical_Coordinate_System_Definition: Altitude_System_Definition: Altitude_Datum_Name: MLLW Altitude_Resolution: 0.1 Altitude_Distance_Units: Meters Altitude_Encoding_Method: Explicit elevation coordinate included with horizontal coordinates Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: Attribute table Entity_Type_Definition: Table containing attribute information associated with the dataset Entity_Type_Definition_Source: U.S. Geological Survey Attribute: Attribute_Label: Value Attribute_Definition: Depth relative to mean lower low water (MLLW) in meters Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 89.83 Attribute_Units_of_Measure: Meters Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey - ScienceBase Contact_Address: Address_Type: Mailing and Physical Address: Denver Federal Center, Building 810, Mail Stop 302 City: Denver State_or_Province: CO Postal_Code: 80225 Contact_Voice_Telephone: 1-888-275-8747 Contact_Electronic_Mail_Address: sciencebase@usgs.gov Resource_Description: These data are available in TIFF format (Bathymetry_SanMiguelPassage_NAD83-UTM10N.tif) contained in a single zip file which also includes a TIFF world file (.tfw), CSDGM FGDC-compliant metadata, and a browse image map of the data (.jpg). Distribution_Liability: 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. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: TIFF Format_Version_Number: Esri ArcGIS 10.5.0.6491 Format_Information_Content: The .zip file contains the TIFF raster (.tif) and the TIFF world file (.tfw), a browse image map, and the metadata. File_Decompression_Technique: No compression applied. Transfer_Size: 45.81 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://www.sciencebase.gov/catalog/file/get/5b4f8e16e4b06a6dd1844499 Network_Resource_Name: https://doi.org/10.5066/F78G8HVC Access_Instructions: Data can be downloaded using the Network_Resource_Name links. The first link is a direct link to download the zipped file of data and metadata. The second link points to a landing page with metadata and data Fees: None. Technical_Prerequisites: These data can be viewed with Esri ArcGIS software. Metadata_Reference_Information: Metadata_Date: 20211013 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey, Pacific Coastal and Marine Science Center Contact_Person: PCMSC Science Data Coordinator Contact_Address: Address_Type: mailing and physical Address: 2885 Mission Street City: Santa Cruz State_or_Province: CA Postal_Code: 95060 Contact_Voice_Telephone: 831-460-4747 Contact_Electronic_Mail_Address: pcmsc_data@usgs.gov Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998