Data · collection
Marine Trackline Geophysical Database
Listed in NASA Earthdata CMR
This data set contains bathymetry, magnetic, gravity and seismic shot point navigation data collected during marine cruises from 1939 to the present.
Description
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.
Read the rest (1 more)
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.
Links
Get the data
- maps.ngdc.noaa.gov /viewers/geophysics ↗
Search for Marine Geophysical Trackline Data using our web based map viewer.
download · from NASA CMR
- ngdc.noaa.gov /mgg/geodas/trackline.html ↗
NCEI's Marine Trackline Geophysical database provides access to bathymetry, magnetics, gravity and seismic reflection data collected during marine cruises from 1939 to the present. Coverage is worldwi
download · from NASA CMR
Where it is published
- DOI doi.org/10.7289/v5cz35dr ↗
DOI / persistent id · from NASA CMR
Documentation and papers
- ngdc.noaa.gov /mgg/image/trkmap256x235.gif ↗
Map showing a web mercator projection of the trackline web map data discovery portal.
preview image · from NASA CMR
Catalogue records · 2
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C2107121614-NOAA_NCEI.umm_json ↗
metadata API · from NASA CMR
- CMR record cmr.earthdata.nasa.gov/search/concepts/C2107121614-NOAA_NCEI.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- Bathymetry · ECHO SOUNDERS · GRAVIMETERS · Gravity · Magnetic Anomalies · Magnetic Anomalies · Magnetic Field · MAGNETOMETERS · Marine Gravity Field · Marine Magnetics · Not provided · Seafloor Topography · Seismic Profile · SEISMIC REFLECTION PROFILERS · Water Depth
Provenance · 1 source records, 21 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C2107121614-NOAA_NCEI | 11 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:echo-sounders | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:gravimeters | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:magnetometers | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:seismic-reflection-profilers | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/oceans/bathymetry-seafloor-topography/bathymetry | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/oceans/bathymetry-seafloor-topography/seafloor-topography | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/oceans/bathymetry-seafloor-topography/water-depth | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/oceans/marine-geophysics/magnetic-anomalies | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/oceans/marine-geophysics/marine-gravity-field | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/oceans/marine-geophysics/marine-magnetics | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/solid-earth/geodetics-gravity/gravity | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/solid-earth/geomagnetism/magnetic-anomalies | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/solid-earth/geomagnetism/magnetic-field | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/solid-earth/seismology/seismic-profile | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:not-provided | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| description | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/Abstract |
| spatial | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/SpatialExtent |
| temporal | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/TemporalExtents |
| title | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/EntryTitle |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |