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Equilibrium Mechanism Analysis on the Physical Processes of IAP3.0


doi: 10.1007/BF02918485

  • Based on the detection of the dynamic and thermodynamic functions of the physical processes in IAP3.0,the equilibrium mechanisms of the temperature, moisture and wind are analyzed. The negative feedback between the longwave radiation and temperature is verified. The cooling regulation of netradiation on temperature is mostly balanced by the heating of precipitation; the leading actions on temperature of other processes such as vertical diffusion, shallow cumulus convection and friction are merely available for lower air. The moisture consumption of precipitation is compensated on the whole by the provision of shallow cumulus convection, which sustains the moisture conservation to a high degree. The wind field is directly regulated by the momentum redistribution of cumulus, the dry adiabatic convection and vertical diffusion.Yet, the prominent influences of these processes are generally confined to the lower level. The east wind at low latitudes and the west wind at high latitudes are both weakened by the regulations and furthermore,by virtue of the transportation of mean meridional circulation, such a variation exactly maintains the angular momentum conservation.
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Manuscript History

Manuscript received: 10 July 2005
Manuscript revised: 10 July 2005
通讯作者: 陈斌, bchen63@163.com
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Equilibrium Mechanism Analysis on the Physical Processes of IAP3.0

  • 1. P. O. Box 2781, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100080;Meteorology Institute, Science and Engineering University of the P.L.A., Nanjing 211101,Meteorology Institute, Science and Engineering University of the P.L.A., Nanjing 211101,P. O. Box 2781, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100080,Meteorology Institute, Science and Engineering University of the P.L.A., Nanjing 211101

Abstract: Based on the detection of the dynamic and thermodynamic functions of the physical processes in IAP3.0,the equilibrium mechanisms of the temperature, moisture and wind are analyzed. The negative feedback between the longwave radiation and temperature is verified. The cooling regulation of netradiation on temperature is mostly balanced by the heating of precipitation; the leading actions on temperature of other processes such as vertical diffusion, shallow cumulus convection and friction are merely available for lower air. The moisture consumption of precipitation is compensated on the whole by the provision of shallow cumulus convection, which sustains the moisture conservation to a high degree. The wind field is directly regulated by the momentum redistribution of cumulus, the dry adiabatic convection and vertical diffusion.Yet, the prominent influences of these processes are generally confined to the lower level. The east wind at low latitudes and the west wind at high latitudes are both weakened by the regulations and furthermore,by virtue of the transportation of mean meridional circulation, such a variation exactly maintains the angular momentum conservation.

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