Large scale perturbations in extratropical atmosphere—Part I: On rossby waves

Advances in Atmospheric Sciences - Tập 10 - Trang 169-180 - 1993
Y. L. McHall1
1Department of Earth, Atmospheric and Planetary Sciences, MIT, USA

Tóm tắt

This study reexamines the propagation mechanism and geostrophic property of the classical two dimensional Rossby waves in a non-divergent barotropic atmosphere. It will be found that propagation of large scale atmospheric waves depends crucially on horizontal divergence. A small Rossby number in Rossby waves is not sufficient for the waves to have a small ageostrophic component, because the two dimensional classical Rossby waves do not manifest the geostrophic balance as good as observed in the atmosphere.

Tài liệu tham khảo

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