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About MGG
Contact MGG
Marine Geophysics
Marine Geology
Bathymetry & Relief
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US ECS Project
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


Marine Geology & 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), and data derived from sediment and rock samples.

Marine Geophysics

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All geophysics magnetics
search for data sediment thickness
create custom grids seismic reflection
gravity trackline geophysics

Marine Geology

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All geology Index to Geological Samples
search for data ocean drilling data
crustal ages well logs

Ocean Depths (Bathymetry) & Relief

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All bathymetry hydrographic surveys
coastal grids IHODCDB
coastlines international ocean mapping
DEM portal multibeam bathymetry
ETOPO1, global grids paleobathymetry
fishing maps trackline
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 Geophysical Survey Data Viewer
Geophysical Survey Data Viewer

Screenshot of Index to Marine and Lacustrine Geological Samples Viewer
Geologic Sample Data Viewer

Screenshot of NGDC Bathymetry Viewer
Bathymetry Data Viewer
Related Data at NGDC:
Geomagnetism
Natural Hazards
Tsunami/Tides

Related External Sites