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@ARTICLE{2026EPS...78...59O,
       author = {{Olsen}, Nils},
        title = "{Space magnetometry: mapping Earth's magnetic field with satellites}",
      journal = {Earth, Planets and Space},
     keywords = {Geomagnetism, Magnetic satellites, Magnetometer calibration, Satellite platform magnetometers},
         year = 2026,
        month = mar,
       volume = {78},
       number = {1},
          eid = {59},
        pages = {59},
     abstract = "{Magnetic measurements from low earth orbiting (LEO) satellites have
        revolutionised our ability to globally map Earth's magnetic
        field. This paper reviews the processing and calibration of
        satellite magnetometer data from both dedicated magnetic field
        missions and satellites carrying platform magnetometers. It
        describes the successive steps of vector magnetometer
        calibration, characterisation of spacecraft disturbance fields
        and alignment of the corrected magnetic field vectors into an
        Earth-fixed reference frame. Different parametrisations for
        these steps are discussed, including approaches to account for
        time- and temperature-dependent effects and non-linear response
        of the magnetometer. Dedicated missions such as {\O}rsted,
        CHAMP, Swarm and MSS-1, equipped with absolute scalar
        magnetometers, allow separate and highly accurate calibration
        steps; whereas, platform magnetometers on missions such as
        CryoSat-2, GRACE and GRACE-FO require joint estimation
        procedures using geomagnetic field models as reference. Despite
        their limitations, platform magnetometer data are a valuable
        supplement to dedicated missions, offering improved space─time
        coverage for modelling ionospheric, magnetospheric and induced
        magnetic field contributions. Recent advances in automated
        calibration are highlighted, underscoring the growing role of
        non-dedicated satellites in geomagnetic research.}",
          doi = {10.1186/s40623-026-02381-3},
       adsurl = {https://ui.adsabs.harvard.edu/abs/2026EP&S...78...59O},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}