u571af.m77t: MGD77T data file for Geophysical data from field activity 71005 (U-5-71-AF) in Continental Margin Liberia from 10/30/1971 to 11/20/1971

Single-beam bathymetry, gravity, and magnetic data along with transit satellite navigation data was collected as part of field activity 71005 (U-5-71-AF) in Continental Margin Liberia from 10/30/1971 to 11/20/1971, http://walrus.wr.usgs.gov/infobank/u/u571af/html/u-5-71-af.meta.html 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/u/u571af/html/u-5-71-af.bath.html http://walrus.wr.usgs.gov/infobank/u/u571af/html/u-5-71-af.grav.html http://walrus.wr.usgs.gov/infobank/u/u571af/html/u-5-71-af.mag.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
datagov_dedupe_retained 20220722134805
identifier USGS:60a7b30c-4a28-4a2a-8421-2fb87f4fde1b
metadata_type geospatial
modified 20201019
old-spatial {"type": "Polygon", "coordinates": [[[-12.22040, 3.19460], [-12.22040, 6.79120], [ -7.29000, 6.79120], [ -7.29000, 3.19460], [-12.22040, 3.19460]]]}
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash c20922a8b4c61066b21e2c0f1eddb405d45e6268
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-12.22040, 3.19460], [-12.22040, 6.79120], [ -7.29000, 6.79120], [ -7.29000, 3.19460], [-12.22040, 3.19460]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • africa
  • amerigeo
  • amerigeoss
  • bathymetry
  • bathymetry-and-elevation
  • bathymetry-measurement
  • ckan
  • continental-margin-liberia
  • distributions
  • geo
  • geoscientificinformation
  • geoss
  • gravimeter-measurement
  • gravimetry
  • liberia
  • magnetic-anomalies
  • magnetic-field-observations
  • magnetometer-measurement
  • marine-geology
  • marine-geophysics
  • marine-gravity-field
  • marine-magnetic-field
  • national
  • north-america
  • oceans
  • seafloor-topography
  • single-beam-echo-sounder
  • united-states
  • usgs-60a7b30c-4a28-4a2a-8421-2fb87f4fde1b
  • water-depth
isopen False
license_id notspecified
license_title License not specified
maintainer Gregory K. Miller
maintainer_email gmiller@usgs.gov
metadata_created 2025-11-22T11:43:55.988275
metadata_modified 2025-11-22T11:43:55.988280
notes Single-beam bathymetry, gravity, and magnetic data along with transit satellite navigation data was collected as part of field activity 71005 (U-5-71-AF) in Continental Margin Liberia from 10/30/1971 to 11/20/1971, http://walrus.wr.usgs.gov/infobank/u/u571af/html/u-5-71-af.meta.html 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/u/u571af/html/u-5-71-af.bath.html http://walrus.wr.usgs.gov/infobank/u/u571af/html/u-5-71-af.grav.html http://walrus.wr.usgs.gov/infobank/u/u571af/html/u-5-71-af.mag.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 u571af.m77t: MGD77T data file for Geophysical data from field activity 71005 (U-5-71-AF) in Continental Margin Liberia from 10/30/1971 to 11/20/1971