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  • j483hb.m77t and j483hb.h77t: MGD77T data and header files for single-beam bathymetry data for field activity J-4-83-HB in Humboldt Bay, California from 08/16/1983 to 08/19/1983

    Metadata Updated: November 12, 2020

    Single-beam bathymetry data along with miniranger navigation data was collected as part of the U.S. Geological Survey cruise J-4-83-HB. The cruise was conducted in Humboldt Bay, California from August 16 to August 19, 1983. The chief scientist was John Dingler from the USGS Coastal and Marine Geology office in Menlo Park, CA. The purpose of the cruise was to conduct a survey of the underwater exterior and related features of both Humboldt Bay jetties and the Crescent City Outer Breakwater. The geophysical source was a Raytheon 7 kilohertz (kHz) system. These data are reformatted from space-delimited ASCII text files located in the Coastal and Marine Geology Program (CMGP) InfoBank field activity catalog at http://walrus.wr.usgs.gov/infobank/j/j483hb/html/j-4-83-hb.meta.html into MGD77T format provided by the NOAA's National Geophysical Data Center(NGDC). The MGD77T format includes a header (documentation) file (.h77t) and a data file (.m77t). More information regarding this format can be found in the publication listed in the Cross_reference section of this metadata file.

    Access & Use Information

    License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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    Dates

    Metadata Date December 29, 2016
    Metadata Created Date November 12, 2020
    Metadata Updated Date November 12, 2020
    Reference Date(s) January 1, 2013 (publication)
    Frequency Of Update notPlanned

    Metadata Source

    Harvested from DOI Open Data

    Additional Metadata

    Resource Type Dataset
    Metadata Date December 29, 2016
    Metadata Created Date November 12, 2020
    Metadata Updated Date November 12, 2020
    Reference Date(s) January 1, 2013 (publication)
    Responsible Party Cherokee Nation Technology Solutions, contracted to U.S. Geological Survey (Point of Contact)
    Contact Email
    Guid
    Access Constraints Use Constraints: 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., Access Constraints: None. These data are held in the public domain.
    Bbox East Long -124.21581
    Bbox North Lat 40.77624
    Bbox South Lat 40.73740
    Bbox West Long -124.24744
    Coupled Resource
    Frequency Of Update notPlanned
    Licence
    Metadata Language
    Metadata Type geospatial
    Progress completed
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 1983-08-16
    Temporal Extent End 1983-08-19

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