Physics
Scientific paper
Dec 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992cha%26a..16..427w&link_type=abstract
Chinese Astronomy and Astrophysics (ISSN 0275-1062) Translation., vol. 16, no. 4, p. 427-433.
Physics
Magnetic Field Configurations, Magnetic Flux, Photosphere, Solar Atmosphere, Solar Magnetic Field, Free Energy, Solar Interior, Solar Physics, Velocity Distribution
Scientific paper
By means of a simple relation between the velocity v of the fluid particle and the velocity v(f) of the photospheric footpoint of the magnetic field line v(z) and B(z) being respectively the components of v and the magnetic field B normal to the photospheric surface, it is shown that through the photospheric surface the transport of all the quantities attributed to the magnetic field, such as the magnetic flux, the magnetic energy and the helicity, is independent of v(z), and v(f) is the only kinematical quantity on which the transport depends. In addition, in the neighborhood of the neutral line the velocity v(t) of the moving curve of constant B(z) is found to be equal approximately to the component of v or v(f) in the direction of v(t). Since v(t) can be measured or estimated, so can the components of v and v(f) near the neutral line.
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