Biotopes of the Oregon outer continental shelf (OCS) proposed wind farm site

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Frequently anticipated questions:

What does this data set describe?

Title:
Biotopes of the Oregon outer continental shelf (OCS) proposed wind farm site
Abstract:
This biotope raster is part of a data release of the Oregon outer continental shelf (OCS) proposed wind farm map site. The biotopes mapped in this area have been numbered to indicate combinations of seafloor hardness, ruggedness and depth associated with biotopes derived by analysis of video data as described in the accompanying Open-File Report (Cochrane and others, 2017). The map was created using video and multibeam echosounder bathymetry and backscatter data collected in 2014 and processed in 2015 (Cochrane and others, 2015).
Supplemental_Information:
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.
  1. How might this data set be cited?
    Cochrane, Guy R., 2017, Biotopes of the Oregon outer continental shelf (OCS) proposed wind farm site: data release DOI:10.5066/F7000069, U.S. Geological Survey, Pacific Coastal and Marine Science Center, Santa Cruz, California.

    Online Links:

    This is part of the following larger work.

    Cochrane, Guy R., 2017, Interpretive data release for Oregon OCS seafloor mapping: Selected lease blocks relevant to renewable energy: U.S. Geological Survey, Santa Cruz, CA.

    Online Links:

  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -124.790333421
    East_Bounding_Coordinate: -124.57875422
    North_Bounding_Coordinate: 43.565576134
    South_Bounding_Coordinate: 43.285968492
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
    Calendar_Date: 01-Sep-2015
    Currentness_Reference:
    2014
  5. What is the general form of this data set?
    Geospatial_Data_Presentation_Form: geoTIFF
  6. How does the data set represent geographic features?
    1. How are geographic features stored in the data set?
      This is a Raster data set. It contains the following raster data types:
      • Dimensions 2561 x 1376 x 1, type Grid Cell
    2. What coordinate system is used to represent geographic features?
      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 coordinates are encoded using row and column
      Abscissae (x-coordinates) are specified to the nearest 12.0
      Ordinates (y-coordinates) are specified to the nearest 12.0
      Planar coordinates are specified in Meter
      The horizontal datum used is D_WGS_1984.
      The ellipsoid used is WGS_1984.
      The semi-major axis of the ellipsoid used is 6378137.0.
      The flattening of the ellipsoid used is 1/298.257223563.
  7. How does the data set describe geographic features?
    Attribute Table
    Table containing attribute information associated with the data set. (Source: Producer defined)
    VALUE
    Biotope (Source: Producer defined)
    ValueDefinition
    0No biotope assigned.
    2hard, flat, 230-270 meters depth
    3hard, flat, 300-370 meters depth.
    4soft, flat, 98-315 meters depth
    5hard, flat, 310-330 meters depth.
    6soft, flat, 330-465 meters depth.
    7soft, flat, 470-600 meters depth.
    COUNT
    Number of pixels in the biotope. (Source: Producer defined)
    Range of values
    Minimum:63
    Maximum:856671
    Entity_and_Attribute_Overview:
    The entity and attribute information provided here describes the tabular data associated with the data set. Please review the detailed descriptions that are provided (the individual attribute descriptions) for information on the values that appear as fields/table entries of the data set.
    Entity_and_Attribute_Detail_Citation:
    The entity and attribute information was generated by the individual and/or agency identified as the originator of the data set. Please review the rest of the metadata record for additional details and information.

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
    • Guy R. Cochrane
  2. Who also contributed to the data set?
    Bureau of Ocean Energy Management funded research.
  3. To whom should users address questions about the data?
    U.S. Geological Survey, Pacific Coastal and Marine Science Center
    Attn: PCMSC Science Data Coordinator
    2885 Mission Street
    Santa Cruz, CA
    US

    831-427-4747 (voice)
    831-427-4748 (FAX)
    pcmsc_data@usgs.gov

Why was the data set created?

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 to identify local seafloor character.

How was the data set created?

  1. From what previous works were the data drawn?
    Bathymetry; Backscatter Intensity; Video (source 1 of 2)
    Cochrane, Guy R., Dartnell, Peter, Hemery, Lenaig G., and Hatcher, Gerry, 2015, Data release for USGS field activity 2014-607-FA, Oregon OCS seafloor mapping; selected lease blocks relevant to renewable energy: U.S. Geological Survey, Pacific Coastal and Marine Science Center, Santa Cruz, CA.

    Online Links:

    Type_of_Source_Media: Digital and/or Hardcopy Resources
    Source_Contribution:
    Source information used in support of the development of the data set.
    Sea floor character (source 2 of 2)
    Cochrane, Guy R., 2017, Interpretive Data release for Oregon OCS seafloor mapping: selected lease blocks relevant to renewable energy: U.S. Geological Survey, Pacific Coastal and Marine Science Center, Santa Cruz, CA.

    Online Links:

    Type_of_Source_Media: Digital and/or Hardcopy Resources
    Source_Contribution:
    Source information used in support of the development of the data set.
  2. How were the data generated, processed, and modified?
    Date: 20-Jun-2016 (process 1 of 5)
    Oregon State University performed cluster analyses that identified fish and invertebrate assemblages and the seafloor character and depth each assemblage is related to (biotopes) within the study area. Data sources used in this process:
    • Bathymetry; Backscatter Intensity; Video
    Date: 01-Jul-2016 (process 2 of 5)
    Bathymetry data were classified into the depth ranges of the biotopes; each depth class was given a unique integer value in multiples of 10. Seafloor character data were used to classify substrate type. Each seafloor character substrate type has a unique integer value in multiples of 1. The classified depth range and seafloor character rasters were combined through raster addition. The resulting raster was then re-classified to a raster with the biotope numbers (0-7). Data sources used in this process:
    • Bathymetry; Backscatter Intensity; Video
    • Sea floor character
    Date: 22-Jun-2018 (process 3 of 5)
    Metadata was modified to bring up to current USGS PCMSC standards. Keywords were added to USGS Thesaurus, and Access Instructions were added. Minor typos were corrected. No data information was changed. Person who carried out this activity:
    Susan A Cochran
    U.S. Geological Survey, Pacific Coastal and Marine Science Center
    Geologist
    2885 Mission Street
    Santa Cruz, CA
    USA

    (831) 460-7545 (voice)
    scochran@usgs.gov
    Date: 30-Aug-2018 (process 4 of 5)
    Minor typos were corrected. No data information was changed. Person who carried out this activity:
    Susan A Cochran
    U.S. Geological Survey, Pacific Coastal and Marine Science Center
    Geologist
    2885 Mission Street
    Santa Cruz, CA
    USA

    (831) 460-7545 (voice)
    scochran@usgs.gov
    Date: 19-Oct-2020 (process 5 of 5)
    Edited metadata to add keywords section with USGS persistent identifier as theme keyword. No data were changed. Person who carried out this activity:
    U.S. Geological Survey
    Attn: VeeAnn A. Cross
    Marine Geologist
    384 Woods Hole Road
    Woods Hole, MA

    508-548-8700 x2251 (voice)
    508-457-2310 (FAX)
    vatnipp@usgs.gov
  3. What similar or related data should the user be aware of?
    Cochrane, Guy R., Dartnell, Peter, Hemery, Lenaig G., and Hatcher, Gerry, 2015, Data release for USGS field activity 2014-607-FA, Oregon OCS seafloor mapping: selected lease blocks relevant to renewable energy: data release 10.5066/F7V40S8V, U.S. Geological Survey, Pacific Coastal and Marine Science Center, Santa Cruz, California.

    Online Links:

    Cochrane, Guy R., Hemery, Lenaig G., and Henkel, Sarah K., 2017, Oregon OCS seafloor mapping: selected lease blocks relevant to renewable energy: Open-File Report 2017-1045, U.S. Geological Survey, Reston, VA.

    Online Links:

How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?
    No formal attribute accuracy tests were conducted.
  2. How accurate are the geographic locations?
    A formal accuracy assessment of the horizontal positional information in the data set has not been conducted.
  3. How accurate are the heights or depths?
    A formal accuracy assessment of the vertical positional information in the data set has either not been conducted, or is not applicable.
  4. Where are the gaps in the data? What is missing?
    Data set 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.
  5. How consistent are the relationships among the observations, including topology?
    No formal logical accuracy tests were conducted.

How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?
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.
  1. Who distributes the data set? (Distributor 1 of 1)
    U.S. Geological Survey - ScienceBase
    Denver Federal Center, Building 810, Mail Stop 302
    Denver, CO

    1-888-275-8747 (voice)
    sciencebase@usgs.gov
  2. What's the catalog number I need to order this data set? These data are available in geoTIFF format contained in a single zip file (biotopes.zip) which also includes CSDGM FGDC-compliant metadata.
  3. What legal disclaimers am I supposed to read?
    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.
  4. How can I download or order the data?

Who wrote the metadata?

Dates:
Last modified: 19-Oct-2020
Metadata author:
U.S. Geological Survey, Pacific Coastal and Marine Science Center
Attn: PCMSC Science Data Coordinator
2885 Mission Street
Santa Cruz, CA
US

831-427-4747 (voice)
831-427-4748 (FAX)
pcmsc_data@usgs.gov
Metadata standard:
Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)
This page is <https://cmgds.marine.usgs.gov/catalog/pcmsc/DataReleases/ScienceBase/DR_F7000069/biotopes.tif.faq.html>
Generated by mp version 2.9.50 on Tue Sep 21 18:17:09 2021