标题：A Review on the Methods for Observing the Substance and Energy Exchange between Atmosphere Boundary Layer and Free Troposphere
作者：Zhang, Haozhe; Zhou, Xuehua; Zou, Jun; Wang, Wuke; Xue, Likun; Ding, Qiuji; Wang, Xinfeng; Zhang, Ning; Ding, Aijun; Sun, Jianning; 更多 作者机构：[Zhang, Haozhe; Zhou, Xuehua; Xue, Likun; Wang, Xinfeng; Wang, Wenxing] Shandong Univ, Environm Res Inst, Qingdao 266237, Peoples R China.; [Zou, Ju 更多
通讯作者：Zhou, Xuehua;Zhou, XH
通讯作者地址：[Zhou, XH]Shandong Univ, Environm Res Inst, Qingdao 266237, Peoples R China.
关键词：boundary layer; free troposphere; entrainment; exchange
摘要：Atmosphere boundary layer (ABL or BL) acts as a pivotal part in the climate by regulating the vertical exchange of moisture, aerosol, trace gases and energy between the earth surface and free troposphere (FT). However, compared with research on the exchange between earth surface and ABL, there are fewer researches on the exchange between ABL and FT, especially when it comes to the quantitative measurement of vertical exchange flux between them. In this paper, a number of various methodologies for investigating the exchange of the substance and energy between ABL and FT are reviewed as follows: (1) methods to obtain entrainment rate, which include method by investigating the height of inversion layer, method of flux-jump, estimating with dataset from the ASTEX Lagrangian Experiments and method of using satellite observations and Microwave Imager; (2) mass budget method, which can yield quantitative measurements of exchange flux between ABL and FT; (3) qualitative measurements: method based on Rayleigh distillation and mixing processes, methods of ground-based remote sensing and airborne tracer-tracer relationship/ratio method.