Computer Science – Numerical Analysis
Scientific paper
May 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987jgr....92.4449m&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 92, May 1, 1987, p. 4449-4457.
Computer Science
Numerical Analysis
10
Geomagnetic Pulsations, Numerical Analysis, Radar Measurement, Sudden Storm Commencements, Ionospheric Conductivity, Magnetic Disturbances, Monochromatic Radiation
Scientific paper
On February 4, 1983, following a storm sudden commencement, a monochromatic and a variable period pulsation were simultaneously observed by the Scandinavian Twin Auroral Radar Experiment and Sweden and Britain Radar Experiment radar systems. Both pulsations differed from previously analyzed examples of their class. The phase of the monochromatic pulsation increased linearly with latitude rather than decreased. Its amplitude remained relatively constant over the latitude interval of linear phase change. The variable period pulsation experienced a change of orientation of its essentially linear polarization diagram in association with a discontinuity of its period. The variable period pulsation was thus manifest in both the toroidal and poloidal components. The results are discussed in terms of recent developments in theoretical pulsation modeling.
McDiarmid D. R.
Nielsen Edward
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