朱正心. 1987. 副热带对流层高层夏季准定常涡旋系统动力成因的初步探讨[J]. 气象学报, 45(1):39-47, doi:10.11676/qxxb1987.005
副热带对流层高层夏季准定常涡旋系统动力成因的初步探讨
ON THE DYNAMIC MECHANISM OF THE SUBTROPICAL QUASI-STATIONARY VORTICES IN NORTHERN SUMMER UPPER TROPOSPHERE
投稿时间:1984-12-19  修订日期:1985-08-03
DOI:10.11676/qxxb1987.005
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英文关键词:
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作者单位
朱正心 南京气象学院 
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中文摘要:
      本文采用一个高截断的斜压谱模式、探讨了在热力强迫作用下副热带夏季对流层高层准定常涡旋系统形成和维持的动力机制。模式中考虑了纬向不对称的热力强迫作用,带状流与波动分量之间的非线性相互作用以及随纬度而变的基本气流的共同影响,所得到的一类稳定平衡态的高层流场特征说明了上述准定常涡旋系统的一些主要特点,并进而讨论了热力强迫的控制作用等问题。
英文摘要:
      In this paper the dynamic mechanisms of the subtropical planetary quasi-stationary vortices in upper troposphere, such as the South Asian high and the ocean thoughs are studied by using a highly truncated, baroclinic spectral model, in which the thermal forcing and the nonlinear interaction between zonal flow and waves, as well as the basic zonal wind changing with latitudes are incorporated. It is revealed that there is a sort of equilibrium state in which stability and features of upper flow field might reflect the main characteristics of the vortices. The control effects of thermal forcing are also discussed.
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