| 释义 |
Rossby, n.|ˈrɒsbɪ|
The name of Carl-Gustaf Rossby (1898–1957), Swedish meteorologist, used attrib. with reference to his work on fluid flow, as Rossby number Meteorol., the ratio of the inertial force to the Coriolis force for a particular fluid flow; Rossby wave Physics and Meteorol., a long wavelength fluctuation of a current in a fluid system having no divergence and subject to Coriolis force; esp. a lateral fluctuation of a jet stream, with wavelength comparable with the radius of the earth.
1951D. Fultz in Jrnl. Meteorol. VIII. 262 A number expressing the influence of rotation, which it is proposed to name the ‘*Rossby number’. 1985Deep-Sea Res. XXXII a. 557 With increasing Rossby number the anticyclonic circulations in the subtropical Atlantic and Indian Ocean parts of the two-ocean domain become more and more isolated from each other. [1951Jrnl. Meteorol. VIII. 264/2 The velocity..of Rossby long waves relative to a basic current.] 1963Deep-Sea Res. X. 735 Damped, stationary *Rossby waves can occur in the ocean superimposed on a steady west to east flow. 1974Earth-Sci. Rev. X. 203 Planetary or Rossby waves, though probably unimportant in the fluid interior of the Earth, are of interest to earth scientists in general, because of their pervasive role in the general circulation of oceans and atmospheres. 1974Nature 5 Apr. 539/1 The intense Kuroshio current may generate a series of Rossby waves, which can propagate across the entire Pacific Basin. 1974Encycl. Brit. Macropædia X. 163/1 If floor conditions are neither divergent nor convergent.., the absolute vorticity should not change with time... This explains the reason for the formation of long planetary waves, the so-called Rossby waves, in the upper-tropospheric flow patterns. |