Large Scale Perturbations in Extratropical Atmosphere-Part Ⅱ: On Geostrophic Waves  

作　　者：Y.L. McHall 

机构地区：[1]Department of Earth, Atmospheric and Planetary Sciences, MIT, MA 02139, USA

出　　处：《Advances in Atmospheric Sciences》1993年第2期181-192,共12页大气科学进展（英文版）

摘　　要： We have examined, in Part Ⅰ, the propagation mechanism and geostrophic property of classical Rossby waves in a non-divergent barotropic atmosphere. As we found that the non-divergent Rossby waves do not propagate in a hydrostatically equilibrium atmosphere, and do not manifest a good geostrophic property, an alternative large scale circulation pattern of geostrophic waves has been proposed (McHall, 1991a). The propagation mechanism and geostrophic property of these waves are examined in the present study.We have examined, in Part Ⅰ, the propagation mechanism and geostrophic property of classical Rossby waves in a non-divergent barotropic atmosphere. As we found that the non-divergent Rossby waves do not propagate in a hydrostatically equilibrium atmosphere, and do not manifest a good geostrophic property, an alternative large scale circulation pattern of geostrophic waves has been proposed (McHall, 1991a). The propagation mechanism and geostrophic property of these waves are examined in the present study.

关 键 词：On Geostrophic Waves Large Scale Perturbations in Extratropical Atmosphere-Part 

分 类 号：P4[天文地球—大气科学及气象学]