冬季北半球地形与定常热源强迫所产生的定常行星波及其动量通量、热量通量的计算

THE COMPUTATION OF THE MOMENTUM AND HEAT FLUXES DUE TO STATIONARY PLANETARY WAVES RESPONDING TO FORCING BY THE NORTHERN HEMISPHERIC TOPOGRAPHY AND STATIONARY HEAT SOURCES IN WINTER

中文摘要:

      本文应用一个包括Rayleigh摩擦、牛顿冷却、水平涡旋热量扩散、定常、准地转、34层球坐标模式来研究冬季北半球地形与定常热源强迫所产生的定常行星波。本文计算了强迫所产生的定常行星波引起的动量通量与热量通量。计算结果与观测结果比较一致。计算结果表明:最大向北的动量通量与热量通量位于平流层。

英文摘要:

      The stationary planetary wanes responding to forcing by the northern hemispheric topography and stationary heat souces in winter are investigated by means of a quasi-geostrophic, steady state, 34-level model, with Rayleigh friction, the effect of Newtonian cooling and the horizontal kinematic thermal diffusivity included in a spherical coordinate system. The momentum and heat fluxes due to stationary planetary waves responding to forcing are computed, and are qualitatively in good agreement with the observed results. The computed results show that the poleward momentum and heat flux in the stratosphere has a maximum, respectively.