青藏高原大气贴地层的基本物理特点

THE BASIC PHYSICAL CHARACTERISTICS OF THE ATMOSPHERE NEAR THE GROUND OVER THE QINGHAI-XIZANG PLATEAU

摘要: 本文根据1979年5-8月高原大气科学实验的地面梯度观测资料,分析了大气贴地层中Ri,Δθ,Δu,K,KT及湍流能量平衡各分量的基本特征.分析采用高原测站与平原测站对比的方法,从而揭示了高原大气贴地层动力过程和热力过程的某些特殊性,对高原贴地层的基本物理特点给出了一个较为全面的认识.

Abstract: In this paper,the primary characteristics of Ri,Δθ,ΔU,K,KT and the components of turbulent energy balance are revealed by using the data observed over the Plateau surface during QXPMEX,May-August 1979.Comparison is made between the relevant observations on the Plateau and that over the plain Some special aspects of the near ground dynamical and thermal processes over the Plateau are analysed.