National Geophysical Data Center (NGDC), NOAA Satellite and Information Service

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NGDC Marine Trackline Geophysics Database

This data set contains bathymetry, magnetic, gravity and seismic shot point navigation data collected during marine cruises from 1939 to the present. Coverage is worldwide. These data are stored in the MGD77 exchange format and are available for download in a variety of user selectable formats. One Header record and multiple Data records are available for a particular cruise/leg (port to port operation). The Header record documents both the content and the structure of the subsequent Data records, containing that part of the data that remains invariant throughout the cruise. The Data records present geophysical data (bathymetry, magnetics and gravity) and seismic information (shot-point identification) with a corresponding time and position. Documentation that varies within the cruise is also included with the data records. Data are fully searchable on-line by geographic area, year of cruise, institution, platform, cruise, date or data type. Data are also available on CD-ROM and DVD with multi-platform access software.

Cite this dataset when used as a source.

Search and Download
Distribution Formats
  • MGD77
Distributor DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
Point of Contact Dan R. Metzger
DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
(303) 497-6542
Dan.R.Metzger@noaa.gov
General Documentation
  • Marine Geophysical Trackline Data Homepage
    NGDC's Marine Trackline Geophysics database provides access to bathymetry, magnetics, gravity and seismic reflection data collected during marine cruises from 1939 to the present. Coverage is worldwide. Data sources include both US and non-US oceanographic institutions, universities, and government agencies.
Originator
  • DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce (comp.)
Originator
  • U.S. and Foreign Academic Institutions
Originator
  • U.S. and Foreign Government Agencies
Originator
  • Private Companies
Publisher
  • National Geophysical Data Center
Date(s)
  • publication: 1977-01-01
Dataset Progress Status On Going
Data Update Frequency: Irregular
Purpose: Marine Research and Commercial Exploration
Use Limitations
  • Not to be used for navigation. Although these data are of high quality and useful for planning and modeling purposes, they are not suitable for navigation. For navigation, please refer to the NOS nautical chart series.
Time Period: 1939-01-01  to  Present
Spatial Bounding Box Coordinates:
N: 90.00
S: -79.00
E: 180.00
W: -180.00
Spatial Coverage Map:
Themes
  • Earth Science > Oceans > Bathymetry/Seafloor Topography > Water Depth
  • Earth Science > Oceans > Marine Geophysics > Magnetic Anomalies
  • Earth Science > Oceans > Marine Geophysics > Marine Gravity Field
  • Earth Science > Oceans > Marine Geophysics > Marine Magnetics
  • Earth Science > Solid Earth > Geodetics/Gravity > Gravity
  • Earth Science > Solid Earth > Geomagnetism > Magnetic Anomalies
  • Earth Science > Solid Earth > Geomagnetism > Magnetic Field
  • Earth Science > Solid Earth > Seismology > Seismic Profile
  • Earth Science > Oceans > Bathymetry/Seafloor Topography > Bathymetry
  • Earth Science > Oceans > Bathymetry/Seafloor Topography > Seafloor Topography
  • INFOTERRA > Energy > Energy processes > Natural gas exploration
  • INFOTERRA > Energy > Energy processes > Oil exploration
  • INFOTERRA > Subject disciplines > Geophysics > Geophysics
  • ngda
  • Elevation
  • WDC/MGG, BOULDER > World Data Center for Marine Geology and Geophysics, Boulder
  • DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
Places
  • Geographic Region > Global Ocean
  • Vertical Location > Sea Floor
  • Ocean > Arctic Ocean
  • Ocean > Atlantic Ocean
  • Ocean > Indian Ocean
  • Ocean > Pacific Ocean
  • Ocean > Southern Ocean
Use Constraints No constraint information available
Fees
  • Depends on the Data Set
Lineage Statement Lineage statement not available.

Metadata Last Modified: 2014-03-18

For questions about the information on this page, please email: John.G.Campagnoli@noaa.gov