Worldwide Database of Analog Marine Seismics, Bathymetry, Magnetics, and Gravity Data

The Analog Marine Geophysical Underway data file consists primarily of seismic data and some bathymetry, magnetics, and gravity data. Most of the data are released to NGDC in microform packages; microfilm, microfiche exceptions include deep penetration seismic record sections and maps released in full or half scale. The data cover approximately 5 million miles of worldwide oceans and have been collected by various academic institutions, government agencies and foreign governments. Data are quality checked, master and backup copies produced and disseminated upon request. These seismic data include Lease Sale (LS) data which are a collection of marine geophysical data in a particular area and common depth point (CDP) data consisting of multichannel high-resolution underway seismic records. Shot-point navigation and occasionally annotated bathymetry accompany the seismic data. The data were released mainly from the US Geological Survey (USGS), and the Minerals Management Service (MMS). Output Media: sections, maps, 35-mm microfilm, magnetic tapes, text and microfiche. In most cases, the microfilm has been scanned and data available as tiff images.
Cite this dataset when used as a source.
  • ID not available.
Other Access
Distribution Formats
  • SEG-Y
  • TIFF
Ordering Instructions Ordering Instructions: Price information is available upon request. Prepay by bank card. There is a standard handling charge, with additional costs for special handling. Orders may be placed via fax, email, regular mail or telephone Custom Order Process: Contact data center for information

Distributor User Services
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Dataset No POCs available for this dataset
Time Period 1950-01-01 to Present
Spatial Bounding Box Coordinates
N: 90.000000
S: -90.000000
E: 180.000000
W: -180.000000
Spatial Coverage Map
Documentation links not available.
Publication Dates
  • publication: 1976-01-01
Edition First
Dataset Progress Status Under development - data is currently in the process of being created
Data Update Frequency Irregular
Purpose Marine Geophysical Underway Research, Exploration
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Theme keywords Global Change Master Directory (GCMD) Science Keywords
  • EARTH SCIENCE>SOLID EARTH>Geodetics/Gravity>Gravitational Field
  • EARTH SCIENCE>OCEANS>Bathymetry/Seafloor Topography>Bathymetry
  • EARTH SCIENCE>OCEANS>Bathymetry>Water Depth
  • EARTH SCIENCE>OCEANS>Bathymetry>Seafloor Topography
  • EARTH SCIENCE>OCEANS>Marine Geophysics>Magnetic Anomalies
  • EARTH SCIENCE>SOLID EARTH>Geodetics/Gravity>Gravity
  • EARTH SCIENCE>SOLID EARTH>Geomagnetism>Magnetic Anomalies
  • EARTH SCIENCE>SOLID EARTH>Geomagnetism>Magnetic Declination
  • EARTH SCIENCE>SOLID EARTH>Geomagnetism>Magnetic Inclination
  • EARTH SCIENCE>SOLID EARTH>Geomagnetism>Magnetic Intensity
  • EARTH SCIENCE>SOLID EARTH>Geophysical Fields>Gravity Field
  • EARTH SCIENCE>SOLID EARTH>Geophysical Fields>Magnetic Field
  • EARTH SCIENCE>OCEANS>Marine Geophysics>Marine Gravity Field
  • EARTH SCIENCE>OCEANS>Marine Geophysics>Marine Magnetics
  • EARTH SCIENCE>SOLID EARTH>Tectonics>Stratigraphic Sequence
  • EARTH SCIENCE>SOLID EARTH>Natural Resources>Natural Gas
  • EARTH SCIENCE>SOLID EARTH>Natural Resources>Petroleum
Uncontrolled Keywords
  • Deep Sea Drilling Program
  • Earth Science>Interior & Crust
Place keywords Global Change Master Directory (GCMD) Location Keywords
  • Global Ocean
Project keywords Global Change Master Directory (GCMD) Project Keywords
  • ICSU-WDS > International Council for Science - World Data System
    Use Constraints
    • Use Constraints: None
    Access Constraints
    • Access Constraints: No Constraints
    • Depends on the Data Set
    Lineage information for: repository
    Processing Steps
    • 2015-04-22T00:00:00 - NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015.
    Acquisition Information (collection)
    • echo sounder
    • gravimeter
    • magnetometer
    • seismometer
    • ship
    • Climate & Global Change
    Last Modified: 2017-09-25
    For questions about the information on this page, please email: