| タイトル | Intercomparison of planetary-scale diagnostics derived from separate satellite and radiosonde time-mean temperature fields |
| 著者（英） | Chapman, W. A.; Miles, T. |
| 著者所属（英） | NASA Langley Research Center|Heriot-Watt Univ.|Edinburgh Univ. |
| 発行日 | 1984-10-01 |
| 言語 | eng |
| 内容記述 | The planetary-scale components of the extratropical Northern Hemisphere troposphere-stratosphere 1973-74 winter circulation are diagnosed using separate time-mean temperature fields based on radiosonde and satellite observations. Meridional cross-sections of zonal wind together with, for zonal wavenumbers 1, 2 and 3, the streamfunction amplitude, phase and Eliassen-Palm flux are displayed, with the relative accuracy of the satellite-derived diagnostics assessed through comparison with the 'ground-truth' radiosonde information. The satellite and radiosonde diagnostics compare most favourably in terms of zonal wind speed and shear, direction of wave propagation and meridional wave structure - all of which are closely related to the differential properties of the atmospheric temperature field. The intensity of the satellite-derived patterns of tropospheric wave propagation is underestimated due to the effects of spatial smoothing and residual cloud contamination present in the satellite radiance measurements. |
| NASA分類 | METEOROLOGY AND CLIMATOLOGY |
| レポートNO | 85A15060 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/394155 |
|
