Abstract
Sunspot drawings obtained at the National Astronomical Observatory of Japan during the years 1954–1986 were used to determine meridional motions of the Sun. A meridional flow of a few ms−1 was found, which is equatorward in the latitude range from -20° to +15° and is poleward at higher latitudes in both hemispheres. A northward flow of 0.01° day−1 or 1.4 ms−1 at mid-latitudes (between 10° and 20°) was also detected. From our limited data-set of three solar cycles, an indication of solar-cycle dependence of meridional motions was found.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Andersen, B. N.: 1984, Solar Phys. 94, 49.
Arevalo, M. J., Gomez, R., Vázquez, M., Balthasar, H., and Wohl, H.: 1982, Astron. Astrophys. 111, 266.
Balthasar, H. and Wöhl, H.: 1980, Astron. Astrophys. 92, 111.
Balthasar, H., Vázquez, and M. Wöhl, H.: 1986, Astron. Astrophys. 155, 87.
Becker, U.: 1954, Z. Astrophys. 34, 129.
Cavallini, F., Ceppatelli, G., and Righini, A.: 1985a, Astron. Astrophys. 143, 116.
Cavallini, F., Ceppatelli, G., and Righini, A.: 1985b, Astron. Astrophys. 150, 256.
Cavallini, F., Ceppatelli, G., and Righini, A.: 1986, Astron. Astrophys. 163, 219.
Duvall, T. L. Jr.: 1979, Solar Phys. 63, 3.
Gilman, P. A.: 1980, Highlights Astron. 5, 91.
Hanslmeier, A. and Lüstig, G.: 1986, Astron. Astrophys. 154, 227.
Howard, R.: 1979, Astrophys. J. 228, L45.
Howard, R. and Gilman, P. A.: 1986, Astrophys. J. 307, 389.
Kambry, M. A. and Nishikawa, J.: 1990, Solar Phys. 126, 89.
LaBonte, B. J. and Howard, R.: 1982, Solar Phys. 80, 361.
Lüstig, G. and Hanslmeier, A.: 1987, Astron. Astrophys. 172, 332.
Ribes, E., Mein, P., and Mangeney, A.: 1985, Nature 318, 170.
Richardson, R. S. and Schwarzschild, M.: 1953, Accad. Naz. Linc., Fond. Ales. Volta, Atti Conv. 11, 228.
Schröter, E. H.: 1985, Solar Phys. 100, 141.
Snodgrass, H. B.: 1984, Solar Phys. 94, 13.
Tuominen, J. 1941, Z. Astrophys. 21, 96.
Tuominen, J. 1945, Observatory 60, 160.
Tuominen, J. 1952, Z. Astrophys. 30, 261.
Tuominen, J. 1955a, Vistas Astron. 1, 691.
Tuominen, J. 1955b, Z. Astrophys. 37, 145.
Tuominen, J. 1961, Z. Astrophys. 51, 91.
Tuominen, J. 1976, Solar Phys. 47, 541.
Tuominen, J. and Kyröläinen, J.: 1982, Solar Phys. 79, 161.
Tuominen, J., Tuominen, I., and Kyröläinen, J.: 1983, Monthly Notices Roy. Astron. Soc. 205, 691.
Ward, F.: 1965, Astrophys. J. 141, 534.
Ward, F.: 1973, Solar Phys. 30, 527.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Kambry, M.A., Nishikawa, J., Sakurai, T. et al. Solar meridional motions derived from sunspot observations. Sol Phys 132, 41–48 (1991). https://doi.org/10.1007/BF00159128
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF00159128