许焕斌,丁正平. 1997. 湿中性垂直运动条件和中-β系统的形成[J]. 气象学报, 55(5):602-610, doi:10.11676/qxxb1997.058
湿中性垂直运动条件和中-β系统的形成
THE NEUTRAL CONDITION OF MOIST VERTICAL MOTION AND THE FORMATION OF MESO-βSYSTEM
投稿时间:1996-02-27  修订日期:1996-12-14
DOI:10.11676/qxxb1997.058
中文关键词:  中-β系统的形成  中性运动条件  中-β数值模拟
英文关键词:Formation of meso-β system  Neutral condition of vertical motion  Meso-β numerical simulation
基金项目:
作者单位
许焕斌 北京应用气象研究所, 北京, 100029 
丁正平 北京应用气象研究所, 北京, 100029 
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中文摘要:
      观测事实表明:在暴雨形成和强化阶段,其大气层结结构是湿中性的,使湿空气垂直运动处于无阻力也无浮力的状态;另外,中-β系统的形成和活跃也伴随着暴雨的增幅。文中探讨了两者的关系,说明了湿中性运动条件有利于中-β形成和发展,并用数值模拟试验为所提出的物理框架给出了印证。
英文摘要:
      Obser vation facts have shown that during the formation and enhancement of the heavy rain the atmospheric stratification structure is moist neutral, which makes the vertical motion of moist air be in a state without drag and buoyancy. In addition, an increase of rainfall accompanies the formation and active of meso-system. In this paper,the relations between the neutral condition of moist vertical motion and meso-β system are investigated and demonstrated that the neutral condition of moist vertical motion is favorable to the formation and development of meso-β system, and used numerical simulation test to give the confirmation of the previous physical frame.
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