Physics
Scientific paper
Oct 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982soph...80..361l&link_type=abstract
Solar Physics, vol. 80, Oct. 1982, p. 361-372.
Physics
84
Meridional Flow, Red Shift, Solar Rotation, Solar Velocity, Flow Velocity, Line Of Sight, Magnetic Flux, Secular Variations, Solar Limb, Velocity Distribution
Scientific paper
It is shown that the use of a two-parameter limbshift and a meridional flow velocity fits solar velocity data better than the standard analysis defined by Howard et al. (1980). The data used are the coarse residual velocity arrays, with 34 equal intervals in both sine latitude and sine longitude. There are a total of 2899 full-disk observations between January 1, 1967, and December 12, 1980. The original velocity fields are reconstructed by adding into the residual arrays the large-scale patterns that were measured and removed on a daily basis by a standard reduction. Tests of this reconstituded data set show that no significant errors are introduced in the analysis of large-scale velocity fields. The results of the analysis presented here imply that the study of solar velocity pattern at the level of a few m/s requires that magnetic regions be treated separately from nonmagnetic regions.
Howard Ralph
LaBonte Barry J.
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