f184sc.m77t - MGD77 data file for Geophysical data from field activity F-1-84-SC in Southern California from 04/26/1984 to 05/21/1984

Single-beam bathymetry and magnetic data along with DGPS navigation data was collected as part of field activity F-1-84-SC in Southern California from 04/26/1984 to 05/21/1984, http://walrus.wr.usgs.gov/infobank/f/f184sc/html/f-1-84-sc.meta.html The geophysical source was a Knudsen 12 kHz 320B/R echosounder. These data are reformatted from space-delimited ASCII text files located in the Coastal and Marine Geology Program (CMGP) InfoBank field activity catalog at field activity F-1-84-SC in Southern California from 04/26/1984 to 05/21/1984, http://walrus.wr.usgs.gov/infobank/f/f184sc/html/f-1-84-sc.bath.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.

Data and Resources

Field Value
accessLevel public
bureauCode {010:12}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier USGS:39e6a29f-4f83-44fa-854c-c034e34cefd3
metadata_type geospatial
modified 20201019
old-spatial -124.80900, 31.33770, -117.13780, 34.58120
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash be7bba137b3a230fa65827979e1701a21c5cfb70
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-124.80900, 31.33770], [-124.80900, 34.58120], [ -117.13780, 34.58120], [ -117.13780, 31.33770], [-124.80900, 31.33770]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • amerigeo
  • amerigeoss
  • bathymetry
  • bathymetry-and-elevation
  • bathymetry-measurement
  • ca
  • ckan
  • distributions
  • geo
  • geoscientificinformation
  • geoss
  • magnetic-anomalies
  • magnetic-field-observations
  • magnetometer-measurement
  • marine-geology
  • marine-geophysics
  • marine-magnetic-field
  • national
  • north-america
  • north-pacific-ocean
  • northern-pacific-ocean
  • oceans
  • pacific-coast-us
  • seafloor-topography
  • single-beam-echo-sounder
  • southern-california
  • united-states
  • usa
  • usgs-39e6a29f-4f83-44fa-854c-c034e34cefd3
  • water-depth
isopen False
license_id notspecified
license_title License not specified
maintainer Gregory K. Miller
maintainer_email gmiller@usgs.gov
metadata_created 2025-11-22T16:11:35.638076
metadata_modified 2025-11-22T16:11:35.638080
notes Single-beam bathymetry and magnetic data along with DGPS navigation data was collected as part of field activity F-1-84-SC in Southern California from 04/26/1984 to 05/21/1984, http://walrus.wr.usgs.gov/infobank/f/f184sc/html/f-1-84-sc.meta.html The geophysical source was a Knudsen 12 kHz 320B/R echosounder. These data are reformatted from space-delimited ASCII text files located in the Coastal and Marine Geology Program (CMGP) InfoBank field activity catalog at field activity F-1-84-SC in Southern California from 04/26/1984 to 05/21/1984, http://walrus.wr.usgs.gov/infobank/f/f184sc/html/f-1-84-sc.bath.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.
num_resources 2
num_tags 30
title f184sc.m77t - MGD77 data file for Geophysical data from field activity F-1-84-SC in Southern California from 04/26/1984 to 05/21/1984