定常辐散场产生的涡源和定常波能量传播

Vorticity Source by Stationary Divergent Wind and Energy Propagation of Stationary Waves

根据ＥＣＭＷＦ１９８０～１９８８年的全球资料，确定了南北两半球对流层上层定常的辐散风所形成的定常涡源的位置、定常波能量传播路径及它们的位置关系，讨论了涡源的形成机制。由此揭示了热带西太平洋积云对流加热、风暴路径上的潜热释放、欧亚大陆冷源及青藏高原热力和动力作用等主要外源在冬夏南北半球定常波形成中的作用。

Using ECMWF Data of 1980￣1989, the vorticity source by stationary divergent wind and energy propagation routes of the upper troposphere stationary waves of the Northern and Sourthern Hemispheres are studied. The generation mechanisms of vorticity sources are discussed. It is found that the convective heating over tropical western Pacific, latent heat released by the precipitations on the storm track, cold source over the EurasiAn Continent, thermal and orographic forcings of the Tibetan Plateau are important forcings of winter and summer stationary waves of both Northern and Southern Hemispheres.