南极中山站NO_2的观测及平流层NO_2与O_3的关系分析

MEASUREMENTS OF NO 2 AND ANALYSES OF STRATOSPHERIC NO 2 AND O 3 OVER ZHONGSHAN STATION,ANTARCTICA

利用Ｂｒｅｗｅｒ臭氧仪对南极中山站上空的Ｏ３、ＮＯ２柱总量及平流层Ｏ３、ＮＯ２含量进行了长期观测研究，分析了１９９３～１９９５年，尤其是１９９５年南极臭氧洞和非臭氧洞时期ＮＯ２柱总量及平流层ＮＯ２含量的季节变化及与Ｏ３含量的关系，指出平流层ＮＯ２含量的减少是造成南极臭氧洞成因和近年来不断加剧的一个主要原因。

NO 2 is one of the important gases in stratospheric chemistry,it is the partner of the heterogeneous reaction on Polar Stratospheric Cloud(PSC's) which causes the happening of the Antarctic Ozone Hole,and it can also react with ClO to form ClONO 2,and thus control the destruction of ozone caused by man made chlorine compounds.It's of significent importance to take the measurement of NO 2 in Antarctica.We have already continually take the measurement of total column amount of O 3,NO 2 as well as stratospheric O 3,NO 2,this paper analyses the seasonal variation of NO 2 and its relationship to O 3 during the Antarctic Ozone Hole in the years 1993-1995 and points out that the decrease of atmospheric NO 2 is one important reason of the increase of Antarctic Ozone Hole.