Marine Trackline Geophysical Database for Sub-Bottom Seismic Data

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: December 18, 2025 | Last Modified: 2023-09-15T00:00:00.000+00:00

Marine Trackline Geophysical data represented by sub-bottom seismic data, which we sometimes also call chirp (based on its operating mode), uses a 3.5 kHz operating frequency. Research vessels use this technology to produce cross sections or vertical slices of the upper tens to hundreds of meters of the sediments below the seafloor.

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Complete Metadata

describedByType	application/octet-steam
identifier	gov.noaa.ncei:trackline-sub-bottom
issued	1979-01-01T00:00:00.000+00:00
landingPage	https://www.ncei.noaa.gov/products/marine-trackline-geophysical-data
language	[]
rights	otherRestrictions
spatial	180.0,-90.0,-180.0,90.0
temporal	1967-01-01T00:00:00+00:00/1967-01-01T00:00:00+00:00

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