Abstract
The influence of large-scale transience on horizontal air motions and tracer distributions in the stratosphere is explored in equivalent barotropic calculations. Planetary waves are excited by steady and unsteady components of mechanical forcing that are assigned variances typical of variability in the stratosphere. Two classes of transience are considered. A monochromatic traveling wave, representative of discrete components such as the 5- and 16-day waves, is imposed as unsteady mechanical forcing. The system is also forced by a second-order stochastic process representative of broadband variability. The response to each of these forms of unsteady forcing is investigated in terms of the characteristic time scale of the transience. -from Author
| Original language | English |
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| Pages (from-to) | 405-421 |
| Number of pages | 17 |
| Journal | Journal of the Atmospheric Sciences |
| Volume | 49 |
| Issue number | 5 |
| Publication status | Published - 1992 |