List of NOS smooth sheets used in USGS Gulf of Alaska Digitization Project

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Frequently anticipated questions:


What does this data set describe?

Title:
List of NOS smooth sheets used in USGS Gulf of Alaska Digitization Project
Abstract:
This table lists the NOS smooth sheets included in the associated shapefile (GulfofAlaskaDigitizationProject_NOSSeafloorCharacter.zip; N = 329, plus insets), the number of samples for each smooth sheet, the year of collection (1892 to 2001), and the smooth sheet scale (from 1:2,000 to 1:600,000). Smooth sheets are available through the National Geophysics Data Center’s online data portal (NDGC, http://www.ngdc.noaa.gov).
  1. How might this data set be cited?
    Golden, Nadine E., Reid, Jane A., Zimmermann, Mark, Lowe, Erik N., and Hansen, Amalia S., 2016, List of NOS smooth sheets used in USGS Gulf of Alaska Digitization Project: data release doi:10.5066/F7CV4FT9, U.S. Geological Survey, Pacific Coastal and Marine Science Center, Santa Cruz, CA.

    Online Links:

    This is part of the following larger work.

    Golden, Nadine, Reid, Jane A., Zimmermann, Mark, Lowe, Erik N., and Hansen, Amalia S., 2016, Gulf of Alaska Digitization Project: Digital seafloor character data from NOS smooth sheets: data release doi:10.5066/F7CV4FT9, U.S. Geological Survey, Pacific Coastal and Marine Science Center, Santa Cruz, CA.

    Online Links:

  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -156.222581
    East_Bounding_Coordinate: -134.259811
    North_Bounding_Coordinate: 61.135883
    South_Bounding_Coordinate: 56.120981
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
    Beginning_Date:
    Ending_Date: 31-Dec-2001
    Currentness_Reference:
    ground condition
  5. What is the general form of this data set?
    Geospatial_Data_Presentation_Form: comma-delimited text
  6. How does the data set represent geographic features?
    1. How are geographic features stored in the data set?
    2. What coordinate system is used to represent geographic features?
  7. How does the data set describe geographic features?
    List_of_GADP_NOSSmoothSheets
    This comma-separated value (.csv) table is a derived list of the NOS smooth sheets (N = 329, plus insets) in the shapefile "GADP_NOSSeafloorCharacter.zip" of the USGS data release "Gulf of Alaska Digitization Project: Digital seafloor character data from NOS smooth sheets" (https://doi.org/10.5066/F7CV4FT9). Data include the number of samples taken from each smooth sheet, the year of collection (1892 to 2001), and the smooth sheet scale (from 1:2,000 to 1:600,000). Smooth sheets are available through the National Geophysics Data Center's online data portal (NDGC, http://www.ngdc.noaa.gov) (Source: USGS)
    SheetNumber
    NOS smooth sheet number (Source: NOAA) NOS smooth sheet number
    Samples
    Number of samples taken from each NOS smooth sheet (Source: NOAA)
    Range of values
    Minimum:1
    Maximum:2500
    Units:Samples
    Year
    Year of data collection (Source: NOAA)
    Range of values
    Minimum:18920101
    Maximum:20111231
    Units:Years
    Scale
    NOS smooth sheet scale (from 1:2,000 to 1:600,000) (Source: USGS)
    Range of values
    Minimum:1:2,000
    Maximum:1:600,000
    Units:Scale

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
    • Nadine E. Golden
    • Jane A. Reid
    • Mark Zimmermann
    • Erik N. Lowe
    • Amalia S. Hansen
  2. Who also contributed to the data set?
    Funding for this effort was through the U.S. Geological Survey (USGS) Coastal and Marine Geology Program and National Oceanic and Atmospheric Administration (NOAA) National Marine Fisheries Service. Thanks to the efforts of Jennifer Reynolds, additional funding was provided by University of Alaska, Fairbanks. The authors also acknowledge Kalei Shotwell and Chris Rooper (both NOAA) for funding USGS to complete the project. The authors recognize the work of Megan Prescott (NOAA) and Paul Waiters, Sara Kaiser, and Blake McBride (all University of California, Santa Cruz) who assisted with the digitization and proofing process.
  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)
    pcmsc_data@usgs.gov

Why was the data set created?

This comma-separated value (.csv) table, is a derivative table of the information in shapefile GulfofAlaskaDigitizationProject_NOSSeafloorCharacter.zip, included in USGS data release "Gulf of Alaska Digitization Project; Digital seafloor character data from NOS smooth sheets" (https://doi.org/10.5066/F7CV4FT9). These data are intended for science researchers, students, policy makers, and the general public. 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 ArcGIS format, this metadata file may include some ArcGIS-specific terminology.

How was the data set created?

  1. From what previous works were the data drawn?
    SHP (source 1 of 1)
    Golden, Nadine, Reid, Jane A., Zimmerman, Mark, Lowe, Erik N., and Hansen, Amalia S., 2016, Gulf of Alaska Digitization Project: Digital seafloor character data from NOS smooth sheets: data release doi:10.5066/F7CV4FT9, U.S. Geological Survey, Pacific Coastal and Marine Science Center, Santa Cruz, CA.

    Online Links:

    Type_of_Source_Media: shapefile
    Source_Contribution: NOS sheets used to make shapefile are listed in tabular form
  2. How were the data generated, processed, and modified?
    Date: 2014 (process 1 of 5)
    NOS smooth sheets used in the creation of this shapefile were listed in tabular form. Data sources used in this process:
    • SHP
    Date: 17-Jun-2020 (process 2 of 5)
    Data and metadata files were moved to a different location on ScienceBase, resulting in a change of ID number in the Online_Linkage and Network_Resources URLs of the metadata. In addition, edits were made as needed to bring the metadata up to current PCMSC standards including standardizing doi# links, correcting typos, adding disclaimers, and refining keywords. 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. Person who carried out this activity:
    Susan A Cochran
    U.S. Geological Survey, Pacific Coastal and Marine Science Center
    2885 Mission St.
    Santa Cruz, CA
    United States

    831-460-7545 (voice)
    scochran@usgs.gov
    Date: 01-Sep-2020 (process 3 of 5)
    Removed duplicate keyword thesaurus. Person who carried out this activity:
    Susan A. Cochran
    U.S. Geological Survey, Pacific Coastal and Marine Science Center
    2885 Mission St.
    Santa Cruz, CA
    USA

    831-460-7545 (voice)
    scochran@usgs.gov
    Date: 19-Oct-2020 (process 4 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
    Date: 13-Oct-2021 (process 5 of 5)
    Performed minor edits to the metadata to correct typos. No data were changed Person who carried out this activity:
    U.S. Geological Survey
    Attn: Susan A. Cochran
    Geologist
    2885 Mission Street
    Santa Cruz, CA

    831-460-7545 (voice)
    scochran@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?
    Observations are of variable unknown accuracy.
  2. How accurate are the geographic locations?
    Variable due to time span of smooth sheet data
  3. How accurate are the heights or depths?
    No formal positional accuracy tests were conducted
  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?
    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? List_of_GADP_NOSSmoothSheet.csv contains a list of all NOS smooth sheets used in the creation of GulfofAlaskaDigitizationProject_NOSSeafloorCharacter.shp, along with other pertinent data about the smooth sheets.
  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?
  5. What hardware or software do I need in order to use the data set?
    These data can be viewed with spreadsheet-reading software.

Who wrote the metadata?

Dates:
Last modified: 13-Oct-2021
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)
pcmsc_data@usgs.gov
Metadata standard:
Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)

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