On the altitude of the magnetopause during geomagnetic reversals

Details On the altitude of the magnetopause during geomagnetic reversals On the altitude of the magnetopause during geomagnetic reversals

Dec 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976jatp...38.1327s&link_type=abstract

Journal of Atmospheric and Terrestrial Physics, vol. 38, Dec. 1976, p. 1327-1331.

Physics

3

Geomagnetism, Magnetic Flux, Magnetopause, Stagnation Point, Magnetic Fields, Paleomagnetism, Solar Wind, Stagnation Pressure

Scientific paper

During geomagnetic reversals, the strength of the dipole component decreases considerably, and at its weakest the nondipolar components may dominate. It is argued that the present nondipolar field may be taken as representative of the minimum field during reversals. Approximate solar wind stagnation point altitudes are then calculated for the present (1960) nondipolar field as a function of longitude for three latitudes and for the average and extreme solar wind stagnation pressures observed by Explorer 33. The results show that the stagnation point altitude lies above the height where the ionosphere has any important effect on the solar wind except at restricted regions of longitude and latitude for the case of extreme maximum solar wind pressure.

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