A user's guide to locating flux transfer events in low-altitude satellite measurements - An S3-2 case study

Details A user's guide to locating flux transfer events in low-altitude satellite measurements - An S3-2 case study A user's guide to locating flux transfer events in low-altitude satellite measurements - An S3-2 case study

Jun 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989jgr....94.6681b&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 94, June 1, 1989, p. 6681-6691.

Computer Science

Sound

15

Earth Ionosphere, Flux Transfer Events, Ionospheric Sounding, Satellite Observation, Convective Flow, Electric Fields, Field Aligned Currents, Magnetic Fields, Magnetometers, Polar Orbits

Scientific paper

A method is developed for identifying the passage of polar-orbiting satellites above the ionospheric footprints of flux transfer events (FTEs). The procedure is based on simultaneous measurements of plasma drifts (electric fields), field-aligned currents (magnetic fields), and precipitating particle fluxes. In this method, it is assumed that the satellites fly in the altitude range 300-1500 km, i.e., in the region where the electric- and magnetic-field perturbations are perpendicular to the major magnetic field; thus, the analytical problem is reduced to solving two-dimensional Poisson's equations for the scalar and vector potentials defining the electric and magnetic perturbation fields. The methodology is illustrated by presenting the results of a search through the available S3-2 data for electric and magnetic field signatures from the midday sector displaying irregular structures of scales 100 to 200 km, consistent with ionospheric mapping of FTEs.

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