Utility of Quasi-real Scale Artificial Cloud Experimental System (ACES)

一个准真实尺度的云（大约300米深）在地下形成一个长的垂直轴。将特制的笼子挂在铁索上，我们可以测量空气温度、相对湿度、气压、垂直风速、能见度以及气溶胶粒子和云滴的大小分布。人工云实验系统（ACES）具有四个独特的特点：（1）在垂直上升的空气中形成准真实尺度的云; (2)云中包含的过程比自然云中的过程更复杂。(3)我们可以在同样的条件下不受天气的影响反复进行实验。(4)由于这个系统是近一维的，并保持近稳定状态，我们可以比较实验结果与理论工作的少量assumptions.This研究介绍ACES和显示初步的结果，实验证实了气溶胶对空气温度，相对湿度和液态水含量的垂直廓线在云中。

A quasi-real scale cloud (about 300 m depht) is formed a long vertical shaft under the ground. Hanging a specially designed cage on an iron rope, we can measure air temperature, relative humidity, air pressure, vertical wind speed, visibility, and size distributions of aerosol particles and cloud droplets. In addition to these measurements, we can collect cloud water, individual aerosol particles and air.The Artificial Cloud Experimental System (ACES) has four unigue features :(1) A Quasi-real scale cloud is formed in the adiabatically ascending air.(2) Processes included in a cloud are more complicated than those of natural clouds.(3) We can repeatedly make experiments under the same condition without influence of weather.(4) Since this system is nearly one-dimensional and keeps nearly steady state, we can compare the experimental results with theoretical works on the small number of assumptions.This study introduce ACES and show tentative results which experimentally confirmed the aerosol effect on vertical profiles of air temperature, relative humidity and liquid water content in a cloud.