利用太阳直射光谱计算平川上空水汽和臭氧总量  

THE TOTAL ATMOSPHERIC WATER VAPOUR AND OZONE CONTENT CALCULATED BY USING THE DATA OF SOLAR DIRECT SPECTRUM OVER PINGCHUAN DISTRICT

作　　者：熊效振[1] 孔琴心[1] 刘广仁[1] 

机构地区：[1]中国科学院大气物理研究所,北京100029

出　　处：《高原气象》1993年第2期162-169,共8页Plateau Meteorology

摘　　要：本文利用“HEIFE”1991年10月加强观测期在平川荒漠地区观测的太阳光谱资料,对平川上空大气中水汽总量和臭氧总量进行了计算。计算指出利用多波段太阳光谱资料拟合(?)ngstr(?)m参数,并引入1nλ的三次多项式,大大地提高了气溶胶光学厚度的计算精度。在上述基础上计算出平川上空10月份臭氧总量平均为0.323 cm-atm,水汽的光学厚度为0.238。分析发现该地区水汽总量与地面相对湿度有较好的相关,其相关系数达0.825。文中对水汽计算的几种方法还进行了比较与讨论。In this paper, the total atmospheric water vapour and ozone content over Pingchuan district are calculated by use of the data of solar direct spectrum which observed in Pingchuan desert district during the special periods of 'HEIFE' Program in Oct. 1991. The calculation shows that the precision of atmospheric aerosol optical thickness is improved by use of several wave-bands solar spectrum data to determine Angstrom parameters and adding cubic polynomial to fit the residual. On the basis of it, calculation shows that total ozone content is 0.323 cm-atm over Pingchuan district in Oct., and the corresponding water vapour optical thickness is 0.238. The analysis still shows that there exists good correlation between total atmospheric water vapour and humidity at the ground, and the correlation coefficient is 0.825. Moreover, the several calculation methods of water vapour have been compared and discussed in this paper.

关 键 词：臭氧总量 水汽 太阳光谱 气溶胶光学厚度 观测 大气 资料 利用 荒漠地区 月份 

分 类 号：P732.6[天文地球—海洋科学] P421.33