Metadata: Identification_Information: Citation: Citation_Information: Originator: Charles A. Endris Originator: H. Gary Greene Originator: Bryan E. Dieter Publication_Date: 2015 Title: Habitat--Offshore of Aptos, California Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: Data Series Issue_Identification: DS 781 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.3133/ds781 Online_Linkage: https://cmgds.marine.usgs.gov/data/csmp/OffshoreAptos/data_catalog_OffshoreAptos.html Larger_Work_Citation: Citation_Information: Originator: Nadine E. Golden Publication_Date: 2015 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: https://doi.org/10.3133/ds781 Description: Abstract: This part of DS 781 presents data for the habitat map of the seafloor of the Offshore of Aptos map area, California. The vector data file is included in "Habitat_OffshoreAptos.zip," which is accessible from https://doi.org/10.5066/F7K35RQB. These data accompany the pamphlet and map sheets of Cochrane, G.R., Johnson, S.Y., Dartnell, P., Greene, H.G., Erdey, M.D, Dieter, B.E., Golden, N.E., Hartwell, S.R., Ritchie, A.C., Kvitek, r.G., Maier, K.L., Endris, C.A., Davenport, C.W., Watt, J.T., Sliter, R.W., Finlayson, D.P., and Krigsman, L.M., (G.R. Cochrane and S.A. Cochran, eds.), 2016, California State Waters Map Series—Offshore of Aptos, California: U.S. Geological Survey Open-File Report 2016–1025, 43 p., 10 sheets, scale 1:24,000, https://doi.org/10.3133/ofr20161025. Using multibeam echosounder (MBES) bathymetry and backscatter data, potential marine benthic habitat maps were constructed. The habitats were based on substrate types and documented or "ground truthed" using underwater video images and seafloor samples obtained by the USGS. These maps display various habitat types that range from flat, soft, unconsolidated sediment-covered seafloor to hard, deformed (folded), or highly rugose and differentially eroded bedrock exposures. Rugged, high-relief, rocky outcrops that have been eroded to form ledges and small caves are ideal habitat for rockfish (Sebastes spp.) and other bottom fish such as lingcod (Ophiodon elongatus). Habitat map is presented in a map format generated in a GIS (ArcMap), and both digital and hard-copy versions will be produced. Please refer to Greene and others (2007) for more information regarding the Benthic Marine Potential Habitat Classification Scheme and the codes used to represent various seafloor features. References Cited: Greene, H.G., Bizzarro, J.J., O'Connell, V.M., and Brylinsky, C.K., 2007, Construction of digital potential marine benthic habitat maps using a coded classification scheme and its application, in Todd, B.J., and Greene, H.G., eds., Mapping the seafloor for habitat characterization: Geological Association of Canada Special Paper 47, p. 141-155. Purpose: This work is one of nine potential marine benthic habitat maps characterized after Greene and others (1999, 2007). These maps will be interpreted from MBES data collected by the CSMP along the coast of central California. This information is not intended for navigational purposes. Supplemental_Information: Interpretation and polygon delineation of habitats performed at scales from 1:2000 to 1:5000. vcvv Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1998 Ending_Date: 2009 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: none planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -122.00 East_Bounding_Coordinate: -121.81 North_Bounding_Coordinate: 36.98 South_Bounding_Coordinate: 36.84 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:556f7bb1e4b0d9246a9fd098 Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: geoscientificInformation Theme_Keyword: environment Theme_Keyword: oceans Theme_Keyword: imageryBaseMapsEarthCover Theme: Theme_Keyword_Thesaurus: Data Categories for Marine Planning Theme_Keyword: distributions Theme_Keyword: physical habitats and geomorphology Theme_Keyword: habitat Theme: Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords Theme_Keyword: seabed Theme_Keyword: habitats Theme_Keyword: benthos Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: sea-floor characteristics Theme_Keyword: habitats Theme_Keyword: benthos Theme_Keyword: ecosystems Theme_Keyword: bathymetry Theme_Keyword: multibeam sonar Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: Coastal and Marine Hazards and Resources Program Theme_Keyword: CMHRP Theme_Keyword: Pacific Coastal and Marine Science Center Theme_Keyword: PCMSC Theme_Keyword: Fisheries Theme: Theme_Keyword_Thesaurus: Coastal and Marine Ecological Classification Standard (CMECS) Theme_Keyword: Marine Nearshore Subtidal Theme_Keyword: Marine Offshore Subtidal Theme_Keyword: Transform Continental Margin Theme_Keyword: Continental/Island Shelf Theme_Keyword: Rock Substrate Theme_Keyword: Unconsolidated Mineral Substrate Place: Place_Keyword_Thesaurus: Geographic Names Information System (GNIS) Place_Keyword: Pacific Ocean Place_Keyword: State of California Place_Keyword: Aptos Place_Keyword: San Cruz County Place_Keyword: Soquel Place: Place_Keyword_Thesaurus: Coastal and Marine Ecological Classification Standard (CMECS) Place_Keyword: Northern California Ecoregion Stratum: Stratum_Keyword_Thesaurus: Coastal and Marine Ecological Classification Standard (CMECS) Stratum_Keyword: Substrate 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 Center for Habitat Studies, Moss Landing Marine Laboratories and the U.S. Geological Survey as the originator(s) 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: 95060-5792 Country: US Contact_Voice_Telephone: 831-427-4747 Contact_Electronic_Mail_Address: pcmsc_data@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: https://www.sciencebase.gov/catalog/file/get/5576269de4b032353caef2b1?f=__disk__b5%2F9d%2F1b%2Fb59d1baa84a86109ad2449add07a4186592b2afe&allowOpen=true Browse_Graphic_File_Description: Potential marine benthic habitats offshore of Aptos, California. Browse_Graphic_File_Type: JPEG Native_Data_Set_Environment: Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; ESRI ArcGIS 10.0.3.3600 Cross_Reference: Citation_Information: Originator: Guy R. Cochrane Originator: Samuel Y. Johnson Originator: Peter Dartnell Originator: H. Gary Greene Originator: Mercedes D. Erdey Originator: Bryan E. Dieter Originator: Nadine E. Golden Originator: Stephen R. Hartwell Originator: Andrew C. Ritchie Originator: Rikk G. Kvitek Originator: Katherine L. Maier Originator: Charles A. Endris Originator: Clifton W. Davenport Originator: Janet T. Watt Originator: Ray W. Sliter Originator: David P. Finlayson Originator: Lisa M. Krigsman Publication_Date: 2016 Title: California State Waters Map Series--Offshore of Aptos, California Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: Open-File Report Issue_Identification: 2016-1025 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.3133/ofr20161025 Data_Quality_Information: Logical_Consistency_Report: Map elements were visually checked for overshoots, undershoots, duplicate features, polygon closure, and other errors by the lead authors and by the GIS technician(s) who created the digital database. Review drafts of the map were reviewed internally by at least two other geologists for consistency with basic geologic principles and general conformity to USGS mapping standards. Completeness_Report: Contact authors for information about omissions, selection criteria, generalization, definitions used, and other rules used to derive the data set. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Interpretation and polygon delineation of habitats performed at scales from 1:2000 to 1:5000 Lineage: Process_Step: Process_Description: Data used for the creation of the potential marine benthic habitat interpretation consists of multibeam bathymetry, acoustic backscatter, sediment samples, camera-sled imagery, and existing geologic and seafloor interpretive maps. All data were compiled and displayed for interpretation using Esri ArcGIS software, ArcMap v.10.2. The process consists of editing a shapefile within ArcMap, beginning with the construction of polygons to delineate benthic features. A benthic feature is an area with common characteristics which can be characterized as a single potential habitat type. The boundaries and extents of these features were determined from the bathymetric data. In general, interpretations were made at scales between 1:2,000 and 1:5,000. The USGS kindly provided the Center for Habitat Studies with a geodatabase consisting of feature datasets delineating geologic features and attributes for offshore Aptos. Some of the delineated polygons were preserved as part of the potential marine benthic habitat characterization. However, the Greene and others (2007) code was used in attributing the dataset and additional polygons were added using the methods outlined below. High-resolution multibeam sonar data in the form of bathymetric depth grids (seafloor digital elevation models, referred to as the "bathymetry") were the primary data used in the interpretation of potential habitat types. Shaded-relief imagery ("hillshade") allows for visualization of the terrain and interpretation of submarine landforms. On the basis of these hillshades, areas of rock were identified by their often sharply defined edges and high relative relief; these may be contiguous outcrops, isolated parts of outcrop protruding through sediment cover (pinnacles), or isolated boulders. Although these types of features can be confidently characterized as exposed rock, it is not uncommon to find areas within or around the rocky feature that appear to be covered by a thin veneer of sediment. These areas are identified as "mixed" induration, containing both rock and sediment. Broad areas of the seafloor lacking sharp and angular characteristics are considered to be sediment. Sedimentary features may contain erosional or depositional characteristics recognizable in the bathymetry, such as dynamic bedforms (dunes or sand waves). General morphologic features such as scours, mounds, and depressions were also identified using the hillshade imagery. The combination of acoustic backscatter data and "ground truthed" sediment samples were used to delineate seafloor sediment types within areas identified as "soft (s)" induration. Initially, ground truth data, in the form of grab sample descriptions and average grain size measurements, were categorized into four grain-size categories: mud (m), muddy sand (s/m), sand (s), and sandy gravel (s/g). Backscatter data was then classified into four intensity categories (low, med, high, very high) that are assumed to correspond to relative grain sizes. The aim was to develop an intensity classification of the seafloor that correlated with the data collected from the sediment samples. Thus, the combination of remotely observed data (acoustic backscatter) and directly observed data (sediment grab samples) translates to higher confidence in our ability to interpret broad areas of the seafloor. Nonetheless, we caution against using our sediment type interpretations as anything more than "best-guess" because of the following issues: characterization of contiguous sediment bodies is a difficult procedure because even small areas can exhibit a wide spectrum of backscatter-intensity values that lack distinct boundaries; backscatter intensity can be affected by depth, vegetation, water column conditions, and seafloor relief; and directly observed sediment data, in the form of sediment samples, represents a very small area relative to remotely observed data, requiring broad areas of interpolation. Process_Date: 2012 Process_Step: Process_Description: Keywords section of metadata optimized for discovery in USGS Coastal and Marine Geology Data Catalog. Process_Date: 20171005 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Alan O. Allwardt Contact_Position: Contractor -- Information Specialist Contact_Address: Address_Type: mailing and physical address Address: 2885 Mission Street City: Santa Cruz State_or_Province: CA Postal_Code: 95060 Contact_Voice_Telephone: 831-460-7551 Contact_Facsimile_Telephone: 831-427-4748 Contact_Electronic_Mail_Address: aallwardt@usgs.gov Process_Step: Process_Description: Added keywords from Coastal and Marine Ecological Classification Standard (CMECS) to metadata. Process_Date: 20180426 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Alan O. Allwardt Contact_Position: Contractor -- Information Specialist Contact_Address: Address_Type: mailing and physical address Address: 2885 Mission Street City: Santa Cruz State_or_Province: CA Postal_Code: 95060 Contact_Voice_Telephone: 831-460-7551 Contact_Facsimile_Telephone: 831-427-4748 Contact_Electronic_Mail_Address: aallwardt@usgs.gov Process_Step: Process_Description: Edits were made to bring the metadata up to current PCMSC standards including standardizing authors' names, adding a doi# link, correcting typos, refining keywords, and using current access and distribution liability statements. Point of Contact and Metadata Contact information sections were changed to static PCMSC contact information. No data were changed. Users are advised to compare the metadata date of this file to any similar file to ensure they are using the most recent version. Process_Date: 20230303 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Susan A Cochran Contact_Organization: U.S. Geological Survey, Pacific Coastal and Marine Science Center Contact_Address: Address_Type: mailing and physical Address: 2885 Mission St. City: Santa Cruz State_or_Province: CA Postal_Code: 95060 Country: United States Contact_Voice_Telephone: 831-460-7545 Contact_Electronic_Mail_Address: scochran@usgs.gov 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 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains Point_and_Vector_Object_Count: 936 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Map_Projection: Map_Projection_Name: WGS 1984 UTM Zone 10N 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: 0.0001 Ordinate_Resolution: 0.0001 Planar_Distance_Units: Meter Geodetic_Model: Horizontal_Datum_Name: D WGS 1984 Ellipsoid_Name: WGS 1984 Semi-major_Axis: 6378137.0 Denominator_of_Flattening_Ratio: 298.257223563 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: Habitat_OffshoreAptos Entity_Type_Definition: Polygons representing habitat map units Entity_Type_Definition_Source: This report Attribute: Attribute_Label: OBJECTID Attribute_Definition: Internal feature number. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated. Attribute: Attribute_Label: Shape Attribute_Definition: Feature geometry. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Coordinates defining the features. Attribute: Attribute_Label: Hab_Code Attribute_Definition: Habitat code Attribute_Definition_Source: Center for Habitat Studies, Greene and others (1999, 2007) Attribute_Domain_Values: Unrepresentable_Domain: Names are in text form, maximum length: 20 Attribute: Attribute_Label: Hab_Type Attribute_Definition: Habitat type Attribute_Definition_Source: Center for Habitat Studies, Greene and others (1999, 2007) Attribute_Domain_Values: Unrepresentable_Domain: Names are in text form, maximum length: 50 Attribute: Attribute_Label: Mega_ID Attribute_Definition: Megahabitat ID code Attribute_Definition_Source: Center for Habitat Studies, Greene and others (1999, 2007) Attribute_Domain_Values: Unrepresentable_Domain: Names are in text form, maximum length: 10 Attribute: Attribute_Label: Mega Attribute_Definition: Megahabitat description Attribute_Definition_Source: Center for Habitat Studies, Greene and others (1999, 2007) Attribute_Domain_Values: Unrepresentable_Domain: Names are in text form, maximum length: 35 Attribute: Attribute_Label: Ind_ID Attribute_Definition: Seafloor induration ID code Attribute_Definition_Source: Center for Habitat Studies, Greene and others (1999, 2007) Attribute_Domain_Values: Unrepresentable_Domain: Names are in text form, maximum length: 15 Attribute: Attribute_Label: Ind Attribute_Definition: Seafloor induration description Attribute_Definition_Source: Center for Habitat Studies, Greene and others (1999, 2007) Attribute_Domain_Values: Unrepresentable_Domain: Names are in text form, maximum length: 35 Attribute: Attribute_Label: Sed_ID Attribute_Definition: Sediment ID code Attribute_Definition_Source: Center for Habitat Studies, Greene and others (1999, 2007) Attribute_Domain_Values: Unrepresentable_Domain: Names are in text form, maximum length: 15 Attribute: Attribute_Label: Sed Attribute_Definition: Sediment description Attribute_Definition_Source: Center for Habitat Studies, Greene and others (1999, 2007) Attribute_Domain_Values: Unrepresentable_Domain: Names are in text form, maximum length: 35 Attribute: Attribute_Label: Mes_Mac_ID Attribute_Definition: Meso/Macro-habitat ID code Attribute_Definition_Source: Center for Habitat Studies, Greene and others (1999, 2007) Attribute_Domain_Values: Unrepresentable_Domain: Names are in text form, maximum length: 35 Attribute: Attribute_Label: Mes_Mac Attribute_Definition: Meso/Macro-habitat description Attribute_Definition_Source: Center for Habitat Studies, Greene and others (1999, 2007) Attribute_Domain_Values: Unrepresentable_Domain: Names are in text form, maximum length: 50 Attribute: Attribute_Label: Mod_ID Attribute_Definition: Habitat modifier ID code Attribute_Definition_Source: Center for Habitat Studies, Greene and others (1999, 2007) Attribute_Domain_Values: Unrepresentable_Domain: Names are in text form, maximum length: 35 Attribute: Attribute_Label: Mod Attribute_Definition: Habitat modifier description Attribute_Definition_Source: Center for Habitat Studies, Greene and others (1999, 2007) Attribute_Domain_Values: Unrepresentable_Domain: Names are in text form, maximum length: 50 Attribute: Attribute_Label: Slope_ID Attribute_Definition: Slope modifier ID code Attribute_Definition_Source: Center for Habitat Studies, Greene and others (1999, 2007) Attribute_Domain_Values: Unrepresentable_Domain: Names are in text form, maximum length: 5 Attribute: Attribute_Label: Slope Attribute_Definition: Slope description Attribute_Definition_Source: Center for Habitat Studies, Greene and others (1999, 2007) Attribute_Domain_Values: Unrepresentable_Domain: Names are in text form, maximum length: 35 Attribute: Attribute_Label: Shape_Area Attribute_Definition: Polygon area in meters Attribute_Definition_Source: ESRI Calculate Geometry (Area in square meters) tool Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 59.2239 Range_Domain_Maximum: 113352313.748 Attribute_Units_of_Measure: Float values in square meters Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing and physical address Address: 345 Middlefield Rd City: Menlo Park State_or_Province: CA Postal_Code: 94025-3561 Country: USA Contact_Voice_Telephone: (650) 329-4309 Resource_Description: The download includes the shapefile (.shp) and associated files. The TXT, XML, HTML, and FAQ versions of the metadata for the Habitat data layer of Offshore of Aptos, California are also included in the download. 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: shapefile Format_Version_Number: ArcMap (version 10.0, ESRI , 2011) Format_Specification: Point, line, and polygon features are in shapefile format and are projected in UTM Zone 10 coordinates, with datum WGS84. Format_Information_Content: The download includes the shapefile (.shp) and associated files. The TXT, XML, HTML, and FAQ versions of the metadata for the Habitat data layer of Offshore of Aptos, California are also included in the download. File_Decompression_Technique: WinZip Transfer_Size: 1.3 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://www.sciencebase.gov/catalog/file/get/556f7bb1e4b0d9246a9fd098 Network_Resource_Name: https://www.sciencebase.gov/catalog/item/556f7222e4b0d9246a9fd04e Network_Resource_Name: https://pubs.usgs.gov/ds/781/ Access_Instructions: Data can be downloaded using the Network Resource links. The first link will begin a direct download of the data. The second link is a landing page on which all of the downloadable data for a particular region are listed. The third link is a landing page for the entire data catalog. Fees: none Technical_Prerequisites: The downloadable data file has been compressed with the "zip" command and can be unzipped with Winzip (or other tool) on Windows systems. To utilize these data, the user must have software capable of uncompressing the WinZip file and importing and viewing an Esri ArcMap SHP. Users should download the ArcGIS Project File, OffshoreAptosGIS.mxd.zip, a compressed (with the "zip" command) version of the ArcMap document (.mxd) that has all the data layers loaded in the table of contents for "Offshore Aptos" and has all the data symbolized as on the data release map sheets. Download and save this ArcGIS project file, including all data layers, to the directory the user has created for this GIS. Metadata_Reference_Information: Metadata_Date: 20230303 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: 95060-5792 Country: US Contact_Voice_Telephone: 831-427-4747 Contact_Electronic_Mail_Address: pcmsc_data@usgs.gov Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998