戈壁地区气溶胶光学特性测量与分析  

Measurements and analysis on optical properties of atmospheric aerosol in desert region

作　　者：罗振莹[1] 姚东升[2] 陆启生[1] 

机构地区：[1]国防科学技术大学光电科学与工程学院 [2]63655部队

出　　处：《红外与激光工程》2006年第z1期427-431,共5页Infrared and Laser Engineering

摘　　要：利用 CE318太阳辐射计测量了西北戈壁地区的气溶胶光学厚度(AOD),并给出了该地区典型的晴朗和沙尘天气条件下气溶胶光学厚度的变化,以670 nm 的气溶胶光学厚度值为例,AOD 平均值分别为0.2和0.47,给出了相应大气条件下波长指数和大气混浊度因子的变化,并进行简要分析.计算了光学厚度的逐月变化量,最后得出了西北戈壁地区气溶胶光学特性的初步结论.The aerosol optical depth (AOD) has been measured with sun-photometer CE318 in the desert region of northwest China.The variations of the typical model in that region are given under different weather conditions such as f'me and sand-blowing.Taking the 670 nm wavelength as an example,the average values of AOD are 0.2 and 0.47 respectively.The variations of the atmospheric wavelength exponent and turbidity coefficient are also given and analyzed.Monthly variation of AOD is measured.Finally,some conclusions about the atmospheric aerosol optical properties in desert region of northwest China are drawn.

关 键 词：气溶胶 光学厚度 大气混浊度 太阳辐射计 

分 类 号：P407.4[天文地球—大气科学及气象学]