- Open Access
Oscillating motion of the Jovian Great Red Spot and Numerical Experiments with IG equation
Earth, Planets and Space volume 58, pages 905–910 (2006)
Position measurements of the Great Red Spot (GRS) on recent digital images of Jupiter were carried out to detect the longitudinal and latitudinal motion of the GRS. Its longitudinal oscillating motion may be interpreted as two types. One has a 57-day period and no latitudinal motion, the other has 86 days and probably has latitudinal motion. In 86 days, oscillation, the GRS seems to locate equatorward when it moves relatively westward, and poleward when it moves eastward. Numerical Experiments of the Intermediate Geostrophic (IG) equation show the same results for the motion of an eddy, and that a kind of wave collides with the eddy when it changes relative longitudinal motion from eastward to westward.
Asada, T., Longitudinal oscillation of the Jovian markings and numerical experiments of the intermediate scale eddies, Yahata University’s Institute of Social Science and the Humanities Kiyo, 16, 195–228, 1985 (in Japanese).
Asada, T., Numerical experiments of the intermediate scale eddies and the STrD on Jupiter, J. Meteor. Soc. Japan, 63, 359–376, 1985.
Asada, T., P. J. Gierasch, and T. Yamagata, Initial development of eddies in hi-speed zonal flow: One interpretation for NTB activity of Jupiter, Icarus, 104, 60–68, 1993.
García-Melendo, E., et al., Jupiter’s 24°N highest speed jet: Vertical structure deduced from nonlinear simulation of a large-amplitude natural disturbance, Icarus, 176, 272–282, 2005.
Hammel, H. B., et al., HST imaging of atmospheric phenomena created by the impact of comet Shoemaker-Levy 9, Science, 267, 1288–1296, 1995.
Reese, E. J., Jupiter’s Red Spot in 1968–1969, Icarus, 12, 249–257, 1970.
Reese, E. J., Jupiter: Its Red Spot and other features in 1969–1970, Icarus, 14, 343–354, 1971.
Reese, E. J., Jupiter: Its Red Spot and disturbances in 1970–1971, Icarus, 17, 57–72, 1972.
Reese, E. J. and R. F. Beebe, Measurements of Jupiter’s long-lived features and currents, Contrib. Obs. of NMSU, 1, 176–191, 1976.
Solberg, H. G., A 3-month oscillation in the longitude of Jupiter’s Red Spot, Planet. Space Sci., 17, 1573–1580, 1969.
Trigo-Rodriguez, J. M., et al., The 90-day oscillation of Jupiter’s Great Red Spot revisited, Planet. Space Sci., 48, 331–339, 2000.
Williams, G. P. and T. Yamagata, Geostrophic regimes, intermediate solitary vortices and Jovian eddies, J. Atmos. Sci., 41, 453–478, 1984.
Yamagata, T., A class of solution missed by quasi-geostrophic approximation, J. Oceanogr. Soc. Japan, 38, 236–244, 1982.
In this paper, we use only planetographic latitude.
About this article
Cite this article
Asada, T., Miyazaki, I. Oscillating motion of the Jovian Great Red Spot and Numerical Experiments with IG equation. Earth Planet Sp 58, 905–910 (2006). https://doi.org/10.1186/BF03351995