Physics
Scientific paper
May 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984soph...92....1d&link_type=abstract
Solar Physics (ISSN 0038-0938), vol. 92, May 1984, p. 1-14. Navy-supported research.
Physics
87
Magnetic Flux, Meridional Flow, Solar Magnetic Field, Solar Physics, Flow Velocity, Flux Quantization, Latitude, Sunspots
Scientific paper
Analytical and numerical solutions to the magnetic flux transport equation in the absence of new bipolar sources of flux are calculated for several meridional flow profiles and a range of peak flow speeds. It is found that a poleward flow with a broad profile and a nominal 10 m/s maximum speed concentrates the large-scale field into very small caps of less than 15 deg half-angle, with average field strengths of several tens of gauss, contrary to observations. A flow which reaches its peak speed at a relatively low latitude and then decreases rapidly to zero at higher latitudes leads to a large-scale field pattern which is consistent with observations. For such a flow, only lower latitude sunspot groups can contribute to interhemispheric flux annihilation and the resulting decay and reversal of the polar magnetic fields.
Boris Jay P.
DeVore Richard C.
Sheeley Neil R. Jr.
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