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Title: Science Data Products for AMPERE
Birkeland currents that flow in the auroral zones produce perturbation magnetic fields that may be detected using magnetometers onboard low-Earth orbit satellites. The Active Magnetosphere and Planetary Electrodynamics Response Experiment (AMPERE) uses magnetic field data from the attitude control system of each Iridium satellite. These data are processed to obtain the location, intensity and dynamics of the Birkeland currents. The methodology is based on an orthogonal basis function expansion and associated data fitting. The theory of magnetic fields and currents on spherical shells provides the mathematical basis for generating the AMPERE science data products. The application of spherical cap harmonic basis and elementary current system methods to the Iridium data are discussed and the procedures for generating the AMPERE science data products are described.
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Dunlop, M.; Lühr, H.
Award ID(s):
Publication Date:
Journal Name:
Ionospheric Multi-Spacecraft Analysis Tools, ISSI Scientific Report Series
Page Range or eLocation-ID:
141 – 165
Sponsoring Org:
National Science Foundation
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