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mgg ship, core, seismic collage
NGDC is data management lead for the US effort to explore potential extended continental shelf areas.

What's New in MGG?new

Frequently Asked Questions

Educational Resources

World Data Service for Geophysics

Marine Geology and Geophysics

The National Geophysical Data Center provides scientific stewardship, products and services for sea floor and lakebed data, including geophysics (gravity, magnetics, seismic reflection, bathymetry, water column sonar), and data derived from sediment and rock samples.

Marine Geophysics
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All trackline geophysics sediment thickness
geophysical data viewer seismic reflection
marine and global gravity water column sonar

Marine Geology
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All marine geology geosample data (IMLGS)
geological data access NOS seabed descriptions
crustal age grids ocean drilling data

Ocean Depths (Bathymetry) & Relief
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All bathymetry & relief hydrographic surveys
coastal grids IHODCDB
create custom grid international ocean mapping
DEM portal multibeam bathymetry
ETOPO1, global grids paleobathymetry
fishing maps shorelines
Great Lakes tsunami inundation

NGDC compiles coastal and global digital elevation models, high-resolution models for tsunami inundation studies, provides stewardship for NOS data supporting charts and navigation, and is the US national long-term archive for MGG data.
Learn more about mgg activities or the MGG Division.

Screenshot of NGDC Trackline Geophysical Data Viewer
Trackline Geophysical Data Viewer

Screenshot of Index to Marine and Lacustrine Geological Samples Viewer
Geosample Data Viewer

Screenshot of NGDC Bathymetry Viewer
Bathymetry Data Viewer