Marine Trackline Geophysical Database

Metadata Updated: February 7, 2018

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.

Access & Use Information

Downloads & Resources

Dates

Metadata Date September 6, 2017
Metadata Created Date September 26, 2015
Metadata Updated Date February 7, 2018
Reference Date(s) January 1, 1977 (publication)
Frequency Of Update irregular

Metadata Source

Harvested from NOAA CSW Harvest Source

Additional Metadata

Resource Type Dataset
Metadata Date September 6, 2017
Metadata Created Date September 26, 2015
Metadata Updated Date February 7, 2018
Reference Date(s) January 1, 1977 (publication)
Responsible Party DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce (Point of Contact)
Contact Email
Access Constraints Cite As: NOAA National Geophysical Data Center (1977): Marine Trackline Geophysical Database. NOAA National Centers for Environmental Information. doi:10.7289/V5CZ35DR
Bbox East Long 180.00
Bbox North Lat 90.00
Bbox South Lat -90.00
Bbox West Long -180.00
Coupled Resource
Frequency Of Update irregular
Guid gov.noaa.ngdc:G00129
Harvest Object Id 0fd5be0c-f934-489b-a118-ab4ca61d0d06
Harvest Source Id 2aed8e29-fc5b-4cde-aa66-fb1118fd705e
Harvest Source Title NOAA CSW Harvest Source
Licence While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty., 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.
Metadata Language
Metadata Type geospatial
Progress onGoing
Spatial Data Service Type ArcGIS Map Service
Spatial Reference System
Spatial Harvester True
Temporal Extent Begin 1939-01-01

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