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Federal
World Magnetic Model High Resolution 2025
National Oceanic and Atmospheric Administration, Department of Commerce —
The World Magnetic Model High Resolution is a more detailed, accurate depiction of the geomagnetic field than the World Magnetic Model (WMM) because it has more... -
Federal
EMAG2v3: Earth Magnetic Anomaly Grid (2-arc-minute resolution)
National Oceanic and Atmospheric Administration, Department of Commerce —
EMAG2v3 is a global Earth Magnetic Anomaly Grid compiled from satellite, ship, and airborne magnetic measurements. It is a significant update of the previous release... -
Federal
US Historic Declination Calculator
National Oceanic and Atmospheric Administration, Department of Commerce —
This programs derives a table of secular change in magnetic declination for a specified point in the conterminous United States. It utilizes the USD polynomial and... -
Federal
High Definition Geomagnetic Model 2025 Real-Time Disturbance Calculator
National Oceanic and Atmospheric Administration, Department of Commerce —
The High Definition Geomagnetic Model (HDGM) is a global, high resolution model of the Earth's geomagnetic main and crustal field, providing magnetic field values... -
Federal
Marine Trackline Geophysical Database NGDA
National Oceanic and Atmospheric Administration, Department of Commerce —
This data set contains bathymetry, magnetic, gravity and seismic shot point navigation data collected during marine cruises from 1939 to the present. Coverage is... -
Federal
Magnetic Field Calculator
National Oceanic and Atmospheric Administration, Department of Commerce —
The Magnetic Field Calculator will calculate the total magnetic field, including components (declination, inclination, horizontal intensity, northerly intensity,... -
Federal
World Magnetic Model 2025
National Oceanic and Atmospheric Administration, Department of Commerce —
The World Magnetic Model is the standard model used by the U.S. Department of Defense, the U.K. Ministry of Defence, the North Atlantic Treaty Organization (NATO) and... -
Federal
Worldwide Well Logs with Values of Conductivity, Bulk Density, Porosity, Grain Density, Resistivity, and Sonic Ratio Collected by the Ocean Drilling Program (ODP)
National Oceanic and Atmospheric Administration, Department of Commerce —
World-wide digital well log data collected for the Ocean Drilling Program (ODP) by Schlumberger Offshore Services under contract to Texas A&M University. The data... -
Federal
Declination Calculator
National Oceanic and Atmospheric Administration, Department of Commerce —
Declination is calculated using the current International Geomagnetic Reference Field (IGRF) model. Declination is calculated using the current World Magnetic Model... -
Federal
EMAG2: Earth Magnetic Anomaly Grid (2-arc-minute resolution)
National Oceanic and Atmospheric Administration, Department of Commerce —
EMAG2 is a global Earth Magnetic Anomaly Grid compiled from satellite, ship, and airborne magnetic measurements. It is a significant update of our previous candidate... -
Federal
Age, spreading rates, and spreading asymmetry of the world's ocean crust
National Oceanic and Atmospheric Administration, Department of Commerce —
The authors present four companion digital models of the age, age uncertainty, spreading rates and spreading asymmetries of the world's ocean basins as geographic and... -
Federal
Data on the Earth's Magnetic Field and its Secular Change since 1800
National Oceanic and Atmospheric Administration, Department of Commerce —
Information on the past and present orientation of the Earth's magnetic field is available from the National Geophysical Data Center (NGDC) which serves as the... -
Federal
A Hypercube of Deep Sea Drilling Project (DSDP) Marine Geological and Geophysical Data
National Oceanic and Atmospheric Administration, Department of Commerce —
Dr. Christopher Jenkins of the University of Colorado Institute for Arctic and Alpine Research (INSTAAR), produced this data hypercube derived from the prime data... -
Federal
Crustal Ages of the Ocean Floor - Poster
National Oceanic and Atmospheric Administration, Department of Commerce —
The Crustal Ages of the Ocean Floor Poster was created at NGDC using the Crustal Ages of the Ocean Floor database draped digitally over a relief of the ocean floor... -
Federal
Downhole Logging Data from the Deep Sea Drilling Project
National Oceanic and Atmospheric Administration, Department of Commerce —
Digital downhole wire-line logging data from the Deep Sea Drilling Project (DSDP) previously available from NGDC on CD-ROM are now available from the Borehole... -
Federal
DST Indices - Reflection Variations in the Magnetospheric Tail Current and Field-aligned Currents in the Magnetosphere
National Oceanic and Atmospheric Administration, Department of Commerce —
The file is comprised of monthly DST indices. These indices are derived from a network of eight stations in the equatorial latitudes. Hourly DST indices provide an... -
Federal
IceBridge Watson-Gyro Fluxgate Magnetometer L1B Time-Tagged Magnetic Field V001
National Aeronautics and Space Administration —
This data set contains time-registered Level-1B field readings taken over Antarctica using the Watson-Gyro Fluxgate Magnetometer instrument. The data were collected... -
Federal
World Magnetic Model 2020 Technical Report
National Oceanic and Atmospheric Administration, Department of Commerce —
The World Magnetic Model is the standard model used by the U.S. Department of Defense, the U.K. Ministry of Defence, the North Atlantic Treaty Organization (NATO) and...
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