k294hw.m77t and k294hw.h77t: MGD77T data and header files for single-beam bathymetry data for field activity K-2-94-HW in Mamala Bay, Offshore Honolulu, Oahu, Hawaii from 05/16/1994 to 05/23/1994

Single-beam bathymetry data along with DGPS navigation data was collected as part of the U.S. Geological Survey cruise K-2-94-HW. The cruise was conducted in Mamala Bay, Offshore Honolulu, Oahu, Hawaii from May 16 to May 23, 1994. The chief scientists were Mike Torresan and Monty Hampton from the USGS Coastal and Marine Geology office in Menlo Park, CA. The purpose of this cruise was to sample and groundtruth the 1993 Acoustic data of the seafloor of Mamala Bay over the US Corps of Engineers Deep Ocean dredged material disposal sites used by Pearl and Honolulu Harbors. The geophysical source is a 12 kilohertz (kHz) Raytheon DSF-6000 fathometer. 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/k/k294hw/html/k-2-94-hw.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.

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 20220721172003
identifier USGS:478c7ae2-cabd-410e-ab4c-270613c20dac
metadata_type geospatial
modified 20201013
old-spatial {"type": "Polygon", "coordinates": [[[-158.00703, 21.18314], [-158.00703, 21.31621], [ -157.86066, 21.31621], [ -157.86066, 21.18314], [-158.00703, 21.18314]]]}
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash 59a4026e9e31501f8074690742ca2eafbecdeff4
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-158.00703, 21.18314], [-158.00703, 21.31621], [ -157.86066, 21.31621], [ -157.86066, 21.18314], [-158.00703, 21.18314]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • amerigeo
  • amerigeoss
  • bathymetry
  • bathymetry-and-elevation
  • bathymetry-measurement
  • ckan
  • distributions
  • geo
  • geoscientificinformation
  • geoss
  • mamula-bay
  • marine-geology
  • marine-geophysics
  • national
  • north-america
  • north-pacific-ocean
  • oahu
  • oceans
  • pacific-ocean
  • seafloor-topography
  • single-beam-bathymetry
  • single-beam-echo-sounder
  • state-of-hawaii
  • united-states
  • usgs-478c7ae2-cabd-410e-ab4c-270613c20dac
  • water-depth
isopen False
license_id notspecified
license_title License not specified
maintainer Heather A. Schreppel
maintainer_email hschreppel@usgs.gov
metadata_created 2025-11-22T22:52:41.003825
metadata_modified 2025-11-22T22:52:41.003829
notes Single-beam bathymetry data along with DGPS navigation data was collected as part of the U.S. Geological Survey cruise K-2-94-HW. The cruise was conducted in Mamala Bay, Offshore Honolulu, Oahu, Hawaii from May 16 to May 23, 1994. The chief scientists were Mike Torresan and Monty Hampton from the USGS Coastal and Marine Geology office in Menlo Park, CA. The purpose of this cruise was to sample and groundtruth the 1993 Acoustic data of the seafloor of Mamala Bay over the US Corps of Engineers Deep Ocean dredged material disposal sites used by Pearl and Honolulu Harbors. The geophysical source is a 12 kilohertz (kHz) Raytheon DSF-6000 fathometer. 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/k/k294hw/html/k-2-94-hw.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.
num_resources 1
num_tags 26
title k294hw.m77t and k294hw.h77t: MGD77T data and header files for single-beam bathymetry data for field activity K-2-94-HW in Mamala Bay, Offshore Honolulu, Oahu, Hawaii from 05/16/1994 to 05/23/1994