University of Oulu

Waters C.L., Anderson B.J., Green D.L., Korth H., Barnes R.J., Vanhamäki H. (2020) Science Data Products for AMPERE. In: Dunlop M., Lühr H. (eds) Ionospheric Multi-Spacecraft Analysis Tools. ISSI Scientific Report Series, vol 17. Springer, Cham

Science data products for AMPERE

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Author: Waters, Colin L.1; Anderson, B. J.2; Green, D. L.3;
Organizations: 1University of Newcastle, Callaghan, New South Wales, Australia
2The Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA
3Oak Ridge National Labs, Oak Ridge, TN, USA
4University of Oulu, Oulu, Finland
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 1.3 MB)
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Language: English
Published: Springer Nature, 2020
Publish Date: 2020-01-07


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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Series: ISSI scientific report series
ISBN: 978-3-030-26732-2
ISBN Print: 978-3-030-26731-5
Issue: 17
Pages: 141 - 165
DOI: 10.1007/978-3-030-26732-2_7
Host publication: Ionospheric multi-spacecraft analysis tools : approaches for deriving ionospheric parameters
Host publication editor: Dunlop, Malcolm Wray
Lühr, Hermann
Type of Publication: A3 Book chapter
Field of Science: 115 Astronomy and space science
Funding: Support for AMPERE has been provided under NSF sponsorship under grants ATM-0739864 and AGS-1420184. We are greatly indebted to the contribution of Iridium Communications for providing the data for AMPERE. We thank the International Space Science Institute (ISSI) in Bern, Switzerland for supporting the Working Group Multi Satellite Analysis Tools—Ionosphere from which this chapter resulted.
Copyright information: © The Author(s) 2020. This chapter is licensed under the terms of the Creative Commons Attribution 4.0 International License (, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made. The images or other third party material in this chapter are included in the chapter’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the chapter’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.