• Core Cut

    Click the image to learn more about the Earth's magnetic field!

  • Crowdmag

    Use your phone as a magnetic sensor! Here is an opportunity for you to be a part of our research on the geomagnetic field. Install CrowdMag app and share your magnetic data. You can also view maps and graphs shared by other citizen scientists.

  • EMAG2_V3: Earth Magnetic Anomaly Grid 2 Arc-Minute Resolution Version 3

    The latest EMAG2 (v3) includes more than 11.5 M new ship and airborne trackline data, and several new or updated precompiled grids.  This version better represents the complexity of the lithosphere magnetic anomalies (particularly in oceanic regions) and accurately reflects areas where no data has been collected.


    The Real-Time add-on to the High Definition Geomagnetic Model (HDGM-RT) includes a model of Earth's magnetosphere which provides near real-time estimates of the external disturbance field due to the solar wind.  More Information

  • COLABS Award

    The CIRES/NOAA Geomagnetism Team won the 2015 COLABS Governor's Award for High Impact Research for Magnetic Innovations: Pushing the Earth's Limits. Press Release

  • ChampVSSwarm

    Comparison of JULIA electric field measurements with CHAMP derived eastward equatorial electric field (EFF) (2000-2010) and Swarm derived EEF (Nov. 2013-Oct.2014)

  • Chulliat_champvs

    Time-longitude diagram at 5 deg. latitude of the equatorially antisymmetric component of the radial secular acceleration at the core-mantle boundary.

  • Schneph_obsvsmodel

    The amplitude of the M2 tide radial magnetic signals at satellite height from (a) CM5 and (b) our study's simulation using HAMTIDE.


The CIRES/NCEI geomagnetism team conducts basic and applied research in the field of Earth magnetism. We develop data-based models and calculators of the various magnetic fields originating within the Earth (in the core, mantle, lithosphere and oceans) and in the near-Earth space environment (in the ionized layers of the atmosphere and the magnetosphere). Such models have a wide range of scientific and technical uses, from investigating physical processes associated to a particular source, for example core flows, to providing accurate headings for aircraft navigation and directional drilling. The group is based out of NOAA's Boulder campus and is primarily funded by the NOAA National Centers for Environmental Information (NCEI) through an agreement with the National Geospatial-Intelligence Agency (NGA).

companion website provides access to official NOAA data products, models and online calculators. This website is more focused on the research activity of our group and includes, for example, research models that have not (yet) been transitioned to operations, publications, and cloud-based calculators. Both sites include various outreach and educational resources in the field of geomagnetism. Feel free to explore and contact us if you have any questions!