李麦村,姚棣荣. 1979. 热带和副热带湿大气的大尺度运动[J]. 气象学报, 37(1):28-35, doi:10.11676/qxxb1979.004 |
热带和副热带湿大气的大尺度运动 |
ON THE LANGE SCALE MOTION OF MOIST TROPICAL AND SUBTROPICAL ATMOSPHERE |
投稿时间:1979-01-04 |
DOI:10.11676/qxxb1979.004 |
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中文摘要: |
本文对热带和副热带湿大气的大尺度运动的热力学性质和动力学性质进行了分析.结果表明,热带湿大气运动的性质与干大气有着巨大的差异,也与中、高纬度地区的大气运动有着很大的不同.指出热带是位势运动、辐合辐散和上升运动广泛盛行的地区.我们所得的结果与Charney对干大气的分析不一致,也与Murakami对湿大气的分析不一致.我们的结果与实际比较符合,从而证实了谢义炳教授最近提出的空气湿度对大气运动有重要影响的观点.同时,我们提出了一种反映热带大气具有强位势运动特点的风压场的关系,这种关系在任何中、高纬度地区风压场关系的研究中所不曾出现过的. |
英文摘要: |
A scale analysis is made of large scale tropical disturbance in a moist atmosphere. dynamic Considering a disturbance of characteristic scale of 1000 km, we obtain a dynamic system in which the vorticity equation has the term of horizonal divergence. This system is not only different from that obtained by Charney in a dry tropical atmosphere but also different from that obtained by Murakami in a conditionally unstable tropical atmosphere. This results is in accordance with observations in tropical atmosphere and confirms professor Xie Yi-bing idea that the atmospheric moisture often gives some very important influence on the atmospheric motion of almost all scales. |
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