Metadata: Identification_Information: Citation: Citation_Information: Originator: California State University, Monterey Bay, Seafloor Mapping Lab Publication_Date: 2014 Title: Backscatter C [Fugro]--Offshore of Coal Oil Point, California Edition: 1.0 Geospatial_Data_Presentation_Form: GeoTiff Larger_Work_Citation: Citation_Information: Originator: Samuel Y. Johnson Originator: Peter Dartnell Originator: Guy R. Cochrane Originator: Nadine E. Golden Originator: Eleyne L. Phillips Originator: Andrew C. Ritchie Originator: Rikk G. Kvitek Originator: Bryan E. Dieter Originator: James E. Conrad Originator: Thomas D. Lorenson Originator: Lisa M. Krigsman Originator: H. Gary Greene Originator: Charles A. Endris Originator: Gordon G. Seitz Originator: David P. Finlayson Originator: Ray W. Sliter Originator: Florence L. Wong Originator: Mercedes D. Erdey Originator: Carlos I. Gutierrez Originator: Ira Leifer Originator: Mary M. Yoklavich Originator: Amy E. Draut Originator: Patrick E. Hart Originator: Frances D. Hostettler Originator: Kenneth E. Peters Originator: Keith A Kvenvolden Originator: Robert J. Rosenbauer Originator: Grace Fong Originator: Susan A. Cochran Publication_Date: 2014 Title: California State Waters Map Series--Offshore of Coal Oil Point, California Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: Scientific Investigations Map Issue_Identification: SIM 3302 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: http://dx.doi.org/10.3133/sim3302 Online_Linkage: http://pubs.usgs.gov/sim/3302/ Larger_Work_Citation: Citation_Information: Originator: Nadine E. Golden Publication_Date: 2013 Title: California State Waters Map Series Data Catalog Geospatial_Data_Presentation_Form: database Series_Information: Series_Name: Data Series Issue_Identification: DS 781 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: http://pubs.usgs.gov/ds/781/ Description: Abstract: This part of SIM 3302 presents data for part of the acoustic-backscatter map (see sheet 3, SIM 3302) of the Offshore of Coal Oil Point map area, California. The raster data file is included in "BackscatterC_Fugro_OffshoreCoalOilPoint.zip," which is accessible from http://pubs.usgs.gov/ds/781/OffshoreCoalOilPoint/data_catalog_OffshoreCoalOilPoint.html. The acoustic-backscatter map of the Offshore of Coal Oil Point map area, California, was generated from backscatter data collected by California State University, Monterey Bay, Seafloor Mapping Lab (CSUMB), by the U.S. Geological Survey (USGS), and by Fugro Pelagos. These metadata describe the acoustic-backscatter data collected by Fugro Pelagos and reprocessed by CSUMB. See "BackscatterA_CSUMB_OffshoreCoalOilPoint_metadata.txt" metadata for a description of the acoustic-backscatter data collected by CSUMB, and see "BackscatterB_USGS_OffshoreCoalOilPoint_metadata.txt" metadata for a description of the acoustic-backscatter data collected by the USGS. Fugro Pelagos collected backscatter data offshore the Coal Oil Point region (part of a larger Southern California mapping effort) using a combination of several sonars (400-kHz Reson 7125, 240-kHz Reson 8101, 100-kHz Reson 8111) aboard a series of Fugro Pelagos-directed vessels. 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 (position accuracy, +/-2 m; pitch, roll, and heading accuracy, +/-0.02 degrees; heave accuracy, +/-5 percent, or 5 cm). KGPS (GPS with real-time kinematic corrections) altitude data were used to account for tide-cycle fluctuations, and sound-velocity profiles were collected with an Applied Microsystems SVPlus sound velocimeter. Data were cleaned, and final products were created by the Seafloor Mapping Lab at CSUMB from the postprocessed multibeam-bathymetry data. Within the acoustic-backscatter imagery, brighter tones indicate higher backscatter intensity, and darker tones indicate lower backscatter intensity. The intensity represents a complex interaction between the acoustic pulse and the seafloor, as well as characteristics within the shallow subsurface, providing a general indication of seafloor texture and sediment type. Backscatter intensity depends on the acoustic source level; the frequency used to image the seafloor; the grazing angle; the composition and character of the seafloor, including grain size, water content, bulk density, and seafloor roughness; and some biological cover. Harder and rougher bottom types such as rocky outcrops or coarse sediment typically return stronger intensities (high backscatter, lighter tones), whereas softer bottom types such as fine sediment return weaker intensities (low backscatter, darker tones). Purpose: These data are intended for science researchers, students, policy makers, and the general public. These data can be used with geographic information systems or other software. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 2008 Ending_Date: 2008 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: As needed Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -120.001373 East_Bounding_Coordinate: -119.862082 North_Bounding_Coordinate: 34.430114 South_Bounding_Coordinate: 34.365572 Keywords: Theme: Theme_Keyword_Thesaurus: Global Change Master Directory (GCMD) Theme_Keyword: Oceans > Bathymetry/SeafloorTopography > Bathymetry Theme_Keyword: Oceans > Bathymetry/SeafloorTopography > Seafloor Topography Theme: Theme_Keyword_Thesaurus: General Theme_Keyword: Marine Geology Theme_Keyword: Multibeam Theme_Keyword: Geology Theme_Keyword: Bathymetry Theme_Keyword: Backscatter Theme_Keyword: Intensity Theme_Keyword: Ocean Floor Topography Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: Pacific Coastal and Marine Science Center Theme_Keyword: CSMP Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: geoscientificInformation Theme_Keyword: imageryBaseMapsEarthCover Theme_Keyword: oceans Place: Place_Keyword_Thesaurus: Geographic Names Information System (GNIS) Place_Keyword: Pacific Ocean Place_Keyword: California Place_Keyword: Santa Barbara Channel Place_Keyword: Santa Barbara County Place_Keyword: Coal Oil Point Place_Keyword: Goleta Place_Keyword: Isla Vista Access_Constraints: None Use_Constraints: Please recognize the U.S. Geological Survey (USGS), California State University, Monterey Bay, Seafloor Mapping Lab (CSUMB), and Fugro Pelagos. USGS-authored or produced data and information are in the public domain. This information is not intended for navigational purposes. Read and fully comprehend the metadata prior to data use. Uses of these data should not violate the spatial resolution of the data. Where these data are used in combination with other data of different resolution, the resolution of the combined output will be limited by the lowest resolution of all the data. Acknowledge the U.S. Geological Survey in products derived from these data. Share data products developed using these data with the U.S. Geological Survey. This database has been approved for release and publication by the Director of the USGS. Although this database has been subjected to rigorous review and is substantially complete, the USGS reserves the right to revise the data pursuant to further analysis and review. Furthermore, it is released on condition that neither the USGS nor the United States Government may be held liable for any damages resulting from its authorized or unauthorized use. Although this Federal Geographic Data Committee-compliant metadata file is intended to document these data in nonproprietary form, as well as in ArcInfo format, this metadata file may include some ArcInfo-specific terminology. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Rikk Kvitek, PhD Contact_Organization: Seafloor Mapping Lab, California State University Monterey Bay Contact_Position: Director Contact_Address: Address_Type: mailing and physical address Address: 100 Campus Center, Bldg 13 City: Seaside State_or_Province: CA Postal_Code: 93955 Country: USA Contact_Voice_Telephone: (831) 582-3529 Contact_Facsimile_Telephone: (831) 582-7073 Contact_Electronic_Mail_Address: rkvitek@csumb.edu Browse_Graphic: Browse_Graphic_File_Name: _OffshoreCoalOilPt_forDataCatalog> Browse_Graphic_File_Description: Acoustic backscatter imagery of offshore Coal Oil Point. Browse_Graphic_File_Type: JPEG Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Not applicable for raster data. Logical_Consistency_Report: Unspecified Completeness_Report: Complete 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: Not applicable Lineage: Process_Step: Process_Description: Fugro provided the backscatter (sidescan) data as composite images. Data were processed using GEOCODER (created by Luciano Fonseca; Fugro Pelagos Modified Test Release 16). Within Geocoder, the backscatter intensities were radiometrically corrected (including despeckling and angle varying gain adjustments) and the position of each acoustic sample was geometrically corrected for slant-range. Individual lines were mosaicked to produce a 0.5 m resolution image. Process_Date: 2008 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Carrie Bretz Contact_Organization: Seafloor Mapping Lab, California State University Monterey Bay Contact_Position: Projects Manager, GIS; Metadata Supervisor Contact_Address: Address_Type: mailing and physical address Address: 100 Campus Center, Bldg 13 City: Seaside State_or_Province: CA Postal_Code: 93955 Country: USA Contact_Voice_Telephone: (831) 582-4197 Contact_Electronic_Mail_Address: carrie_bretz@csumb.edu Process_Step: Process_Description: USGS downloaded the original backscatter images from CSUMB, Seafloor Mapping website at http://seafloor.otterlabs.org/index.html (survey ID H11950). Images were converted to GIS GRIDs and downsampled to 2-m spatial resolution. Process_Date: 2012 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Pete Dartnell Contact_Organization: U.S. Geological Survey, Pacific Coastal and Marine Science Center Contact_Position: Physical Scientist Contact_Address: Address_Type: mailing and physical address Address: 400 Natural Bridges Dr. City: Santa Cruz State_or_Province: CA Postal_Code: 95060-5792 Country: USA Contact_Voice_Telephone: (831) 460-7415 Contact_Electronic_Mail_Address: pdartnell@usgs.gov Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Raster Raster_Object_Information: Raster_Object_Type: Grid Cell Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 11 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -117.00000 Latitude_of_Projection_Origin: 0.00000 False_Easting: 500000.0 False_Northing: 0.00 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: WGS84 Ellipsoid_Name: NAVD88 Semi-major_Axis: 6378137.00 meters Denominator_of_Flattening_Ratio: 298.257223563 Entity_and_Attribute_Information: Overview_Description: Entity_and_Attribute_Overview: The complete Fugro backscatter data were originally archived as an ESRI grid with the following attributes: >Cell size = 2.0 >Number of rows = 8960 >Number of columns = 8963 > >Data type = floating point > >Boundary >Xmin = 223875.0 >Xmax = 241801.0 >Ymin = 3803500.0 >Ymax = 3821420.0 > >Statistics >Minimum value = 0.0 >Maximum value = 237.95 >Mean = 104.39 >Standard deviation = 21.75 > >Coordinate system description >Projection UTM >Zone 11 >Datum WGS84 >Units meter Entity_and_Attribute_Detail_Citation: none Metadata_Reference_Information: Metadata_Date: 2013 Metadata_Review_Date: 2013 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Peter Dartnell Contact_Organization: U.S. Geological Survey, Pacific Coastal and Marine Science Center Contact_Position: Physical Scientist Contact_Address: Address_Type: mailing and physical address Address: 400 Natural Bridges Dr. City: Santa Cruz State_or_Province: CA Postal_Code: 95060-5792 Country: USA Contact_Voice_Telephone: (831) 460-7415 Contact_Facsimile_Telephone: (831) 427-4709 Contact_Electronic_Mail_Address: pdartnell@usgs.gov Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata ("CSDGM version 2") Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: universal time