l482np.m77t - MGD77 data file for Geophysical data from field activity L-4-82-NP in Low-energy abyssal hill areas midway between San Franciso and Hawaii from 03/01/1982 to 03/15/1982

Single-beam bathymetry, gravity, and magnetic data along with DGPS navigation data was collected as part of field activity L-4-82-NP in Low-energy abyssal hill areas midway between San Franciso and Hawaii from 03/01/1982 to 03/15/1982, http://walrus.wr.usgs.gov/infobank/l/l482np/html/l-4-82-np.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/l/l482np/html/l-4-82-np.bath.html, http://walrus.wr.usgs.gov/infobank/l/l482np/html/l-4-82-np.grav.html, and http://walrus.wr.usgs.gov/infobank/l/l482np/html/l-4-82-np.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 20220725164314
identifier USGS:c7b370f8-3b69-47e0-b501-b153940a77ff
metadata_type geospatial
modified 20201019
old-spatial {"type": "Polygon", "coordinates": [[[-157.90100, 21.22169], [-157.90100, 36.97763], [ -127.43979, 36.97763], [ -127.43979, 21.22169], [-157.90100, 21.22169]]]}
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash 4782d093fb6eb8922a132e841d99285a5a3c2182
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-157.90100, 21.22169], [-157.90100, 36.97763], [ -127.43979, 36.97763], [ -127.43979, 21.22169], [-157.90100, 21.22169]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • amerigeo
  • amerigeoss
  • bathymetry
  • bathymetry-and-elevation
  • bathymetry-measurement
  • ckan
  • distributions
  • geo
  • geoscientificinformation
  • geoss
  • gravimeter-measurement
  • gravimetry
  • low-energy-abyssal-hill-areas-midway-between-san-franciso-and-hawaii
  • magnetic-anomalies
  • magnetic-field-observations
  • magnetometer-measurement
  • marine-geology
  • marine-geophysics
  • marine-gravity-field
  • marine-magnetic-field
  • national
  • north-america
  • north-pacific-ocean
  • northern-pacific-ocean
  • oceans
  • seafloor-topography
  • single-beam-echo-sounder
  • united-states
  • usgs-c7b370f8-3b69-47e0-b501-b153940a77ff
  • water-depth
isopen False
license_id notspecified
license_title License not specified
maintainer Gregory K. Miller
maintainer_email gmiller@usgs.gov
metadata_created 2025-11-22T13:06:57.607910
metadata_modified 2025-11-22T13:06:57.607914
notes Single-beam bathymetry, gravity, and magnetic data along with DGPS navigation data was collected as part of field activity L-4-82-NP in Low-energy abyssal hill areas midway between San Franciso and Hawaii from 03/01/1982 to 03/15/1982, http://walrus.wr.usgs.gov/infobank/l/l482np/html/l-4-82-np.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/l/l482np/html/l-4-82-np.bath.html, http://walrus.wr.usgs.gov/infobank/l/l482np/html/l-4-82-np.grav.html, and http://walrus.wr.usgs.gov/infobank/l/l482np/html/l-4-82-np.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 l482np.m77t - MGD77 data file for Geophysical data from field activity L-4-82-NP in Low-energy abyssal hill areas midway between San Franciso and Hawaii from 03/01/1982 to 03/15/1982