Geologic Observations-Oregon OCS Floating Wind Farm Site

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Frequently anticipated questions:

What does this data set describe?

Title: Geologic Observations-Oregon OCS Floating Wind Farm Site
Abstract:
This part of the Oregon Outer Continental Shelf (OCS) Floating Windfarm Suite Data Release presents geological observations from video collected on U.S. Geological Survey (USGS) field activity 2014-607-FA in the Floating Wind Farm survey area. The survey was conducted using 12 hour day operations out of Charleston Harbor near Coos Bay, Oregon. The cruise plan consisted of 23 days on site split between sonar mapping and video ground truth surveying. Activities parsed out to nine days of sonar mapping, three days of video surveying, eight days of no operations due to weather, and three days mobilizing and demobilizing (table 1). Typically the Snavely would transit out to the survey area in an hour at a speed of 20 knots. Marine Mammal observations were made during the multibeam sonar mapping portion of the cruise only. Multibeam sonar operations were conducted on north or south oriented tracklines at a speed of 4 to 5 knots depending on sea state. Observations were also made on the transit out to the floating Windfarm site.
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=2014-607-FA
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., and Dartnell, Peter, 2015, Geologic Observations-Oregon OCS Floating Wind Farm Site: Data Release doi:10.5066/F7V40S8V, U.S. Geological Survey, Coastal and Marine Geology Program, Pacific Coastal and Marine Science Center, Santa Cruz, California.

    Online Links:

    This is part of the following larger work.

    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 doi:10.5066/F7V40S8V, U.S. Geological Survey, Coastal and Marine Geology Program, Pacific Coastal and Marine Science Center, Santa Cruz, California.

    Online Links:

  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -124.774686
    East_Bounding_Coordinate: -124.318081
    North_Bounding_Coordinate: 43.516969
    South_Bounding_Coordinate: 43.297155
  3. What does it look like?
    https://www.sciencebase.gov/catalog/file/get/559b1452e4b0b94a64017023?name=Geo-Obs_2014-607-FA.jpg&allowOpen=true (JPEG)
    Oregon OCS Wind Farm Site 10 meter geologic observations
  4. Does the data set describe conditions during a particular time period?
    Beginning_Date: 21-Aug-2014
    Ending_Date: 01-Sep-2014
    Currentness_Reference:
    ground condition
  5. What is the general form of this data set?
    Geospatial_Data_Presentation_Form: vector shapefile
  6. How does the data set represent geographic features?
    1. How are geographic features stored in the data set?
      This is a Vector data set. It contains the following vector data types (SDTS terminology):
      • Entity point (798)
    2. What coordinate system is used to represent geographic features?
      Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.000001. Longitudes are given to the nearest 0.000001. Latitude and longitude values are specified in Decimal degrees. The horizontal datum used is D_WGS_1984.
      The ellipsoid used is WGS_1984.
      The semi-major axis of the ellipsoid used is 6378137.000000.
      The flattening of the ellipsoid used is 1/298.257224.
  7. How does the data set describe geographic features?
    GeoObs_2014-607-FA
    The shapefile includes vector point data of observed geologic and biologic features when each observation was taken. The shapefile can be added to any ESRI ArcMap project. (Source: USGS)
    FID
    Internal feature number. (Source: ESRI) Sequential unique whole numbers that are automatically generated.
    Shape
    Feature geometry. (Source: ESRI) Coordinates defining the ArcGIS features
    DATE
    Cruise Date. Month, day, year format (mmddyyy) (Source: USGS) Date of observation
    TIME
    Greenwich Mean Time (GMT) also commonly referred to as Coordinated Universal Time (UTC). (Source: USGS) Time of observation
    LONGITUDE
    Longitude (Source: USGS)
    Range of values
    Minimum:-124.770
    Maximum:-124.438
    Units:Decimal degrees; Western Hemisphere values are negative.
    LATITUDE
    Latitude (Source: USGS)
    Range of values
    Minimum:43.300
    Maximum:43.559
    Units:Decimal degrees; Southern Hemisphere values are negative.
    Prim_sub
    Primary substrate constitutes greater than fifty percent of the seafloor during an observation. The values are based on the Wentworth scale except that granule and pebble sizes have been grouped together into a class called "gravel," and clay and silt sizes have been grouped together into a class called "mud." (Source: USGS)
    ValueDefinition
    RockExposed bedrock
    Boulder25.5 cm or greater
    CobbleBetween 25.5 cm and 6.5 cm
    GravelBetween 6.5 cm and .2 cm
    SandBetween .2 cm and .00625 cm
    Mud.00625 cm or smaller
    Sec_sub
    Secondary substrates constitute greater than twenty percent of the seafloor during an observation. The classes are based on the Wentworth scale except that granule and pebble sizes have been grouped together into a class called "gravel", and clay and silt sizes have been grouped together into a class called "mud". (Source: USGS)
    ValueDefinition
    RockExposed bedrock
    Boulder25.5 cm or greater
    CobbleBetween 25.5 cm and 6.5 cm
    GravelBetween 6.5 cm and .2 cm
    SandBetween .2 cm and .00625 cm
    Mud.00625 cm or smaller
    LogEntry
    Comments and notes on geologic features, biota, or operations manually recorded during a transect. (Source: USGS) Annotation Unrepresentable_Domain_Type: free text

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
    • Peter Dartnell
  2. Who also contributed to the data set?
  3. To whom should users address questions about the data?
    Guy Cochrane
    U.S. Geological Survey
    Employee
    2885 Mission Street
    Santa Cruz, CA
    USA

    (831) 460-7554 (voice)
    (863) 427-4748 (FAX)
    gcochrane@usgs.gov

Why was the data set created?

These data are intended for science researchers, students, policy makers, and the general public. The data can be used with geographic information systems (GIS) software to display geologic and oceanographic information.

How was the data set created?

  1. From what previous works were the data drawn?
  2. How were the data generated, processed, and modified?
    Date: 2014 (process 1 of 2)
    The camera sled tracklines were controlled by winch manipulation through video fed up to the research vessel in real time to maintain an altitude above the sea-floor bottom of approximately 1 meter. USGS scientists recorded the geologic character of the seafloor. While the camera was deployed, observations were recorded for a 10-second period once every minute. Back in the lab, the observation comma-delimited text file was converted to an ArcGIS shapefile.
    Date: 19-Oct-2020 (process 2 of 2)
    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?

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

  1. How well have the observations been checked?
    Water proof camera is submerged and connected to GPS receiver at the surface with Red Hen Systems VMS 300 hardware. Georeferenced video and still photos are collected. Visual observations of variable unknown accuracy.
  2. How accurate are the geographic locations?
    Highly variable on the order of 10 meters.
  3. How accurate are the heights or depths?
  4. Where are the gaps in the data? What is missing?
    Observation are from one minute intervals. Some gaps in observations exist due to technical problems or sediment dispersion covering the camera lens.
  5. How consistent are the relationships among the observations, including topology?
    Point features present.

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(s) of the dataset and in products derived from these data. This information is not intended for navigation purposes.
  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 shapefile format (GeoObs_2014-607-FA.shp and associated files) contained in a single zip file (GeoObs_2014-607-FA.zip), which also include CSDGM FGDC-compliant metadata and a browse graphic.
  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?
    • Availability in digital form:
      Data format: The .zip file for a shapefile includes the .dbf, .shp, .shx, .sbx, and .sbn files, accompanied by FGDC-compliant metadata for the Oregon OCS Wind Farm Site geologic observations. in format SHP (version ArcMap (version 10.0, ESRI , 2011)) Point, line, and polygon features are in shapefile format and are projected in UTM Zone 10 coordinates, with datum WGS84. Size: 0.037
      Network links: https://www.sciencebase.gov/catalog/file/get/559b1452e4b0b94a64017023
      https://doi.org/10.5066/F7V40S8V
    • Cost to order the data: none

  5. What hardware or software do I need in order to use the data set?
    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, DR_2014607FA.mxd, an ArcMap document (.mxd) that has all the data layers loaded in the table of contents for and has all the data symbolized as on the data release images. Download and save this ArcGIS project file, including all data layers, to the directory the user has created for this GIS.

Who wrote the metadata?

Dates:
Last modified: 19-Oct-2020
Metadata author:
U.S. Geological Survey, Coastal and Marine Geology
Attn: Guy R. Cochrane
Geophysicist
2885 Mission Street
Santa Cruz, CA
USA

(831) 460-7554 (voice)
(831) 427-4748 (FAX)
gcochrane@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/CMGDS/DR_F7V40S8V/GeologicObservations_2014-607-FA_metadata.faq.html>
Generated by mp version 2.9.50 on Tue Sep 21 18:17:09 2021