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近年来中尺度涡动力学研究进展

Progress in dynamics of mesoscale vortex in recent years

  • 摘要: 围绕国内外近年来中尺度涡的动力学研究进展,聚焦中尺度对流涡的涡度方程和热量方程,对中尺度对流涡的动力学进展进行了梳理总结,指出环境风切变、垂直运动、平流的动力辐合、风场变形、热力场变化及地形等对中尺度涡的涡度发展均有作用。此外,中尺度涡动力学的研究进展,还体现在能量方程和中尺度垂直运动方程的推导和诊断方面。强对流系统中,垂直运动的变化与不稳定能量及对流层中层水平运动的风速有关。

     

    Abstract: This paper summarizes the research progress nationally and internationally in the dynamics of mesoscale vortices in recent years, including the vorticity equation, heat equation, energy equation and mesoscale vertical motion equation of mesoscale convective vortex, pointing out that environmental wind shear, vertical motion, advective dynamical convergence, variation of wind field and thermal field, along with topography all have effects on the development of mesoscale vortices. Moreover, the study of mesoscale vortex dynamics is related to the derivation and diagnosis of energy equation and vertical motion equation, as the variety of vertical motion is concerned with the instability energy and horizontal wind velocity in middle troposphere level.

     

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