NCEI's Trackline Geophysics Viewer
Search marine and airborne surveys

Magnetic Survey Exchange Format - MAG88T (PDF)

Special Collections

Magnetic Anomaly Data in the Former Soviet Union

U.S. Magnetic/Gravity Data Sources

• Airborne Geophysical Survey Inventory of the Conterminous United States, Alaska, Hawaii, and Puerto Rico
• Gridded compilations and flight-line data
• Digital flight-line magnetics
• Digitized analog map magnetics
• Gridded magnetics

Airborne Magnetic Data

NCEI's aeromagnetic program focuses on global data to support modeling of Earth's magnetic field. The U.S. aeromagnetic data are updated and available from the USGS Geophysical Products. NCEI continues to archive and serve data for main field modeling.

All marine and airborne trackline surveys can be accessed via our Map Viewer.

Aeromagnetic Trackline Data