| タイトル | The influence of meridional shear on planetary waves. I - Nonsingular wind profiles. II - Critical latitudes |
| 著者（英） | Boyd, J. P. |
| 著者所属（英） | Harvard Univ. |
| 発行日 | 1982-04-01 |
| 言語 | eng |
| 内容記述 | An attempt to define a relationship between the strength and curvature of the latitudinal wind shear and the planetary waves is presented. Previous work based on the WKB method is reviewed and compared with Galerkin's method, which is found to be effective when considering low-order modes. The WKB method, however, increases in accuracy with the mode number. Both methods are applied to a linear wind shear profile and the Galerkin method is determined to be significantly superior in predicting the lowest order, and is therefore suitable for formulating the latitudinal structure of quasi-stationary Rossby waves in the middle atmosphere. In a second paper the mean zonal wind is assumed to depend on latitude only, and the effects of critical latitudes, where the Doppler shifter frequency is zero, on planetary waves are shown to include shear-induced instability in Kelvin waves. Further research to assay the extent that baroclinity alters stable winds is indicated. |
| NASA分類 | METEOROLOGY AND CLIMATOLOGY |
| レポートNO | 82A33334 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/410409 |
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