Observation of ozone in the Arctic upper stratsophere

1. 1995年在挪威斯匹茨卑尔根的新奥勒松利用BT-5高空气球上的光学臭氧传感器对北极夏季平流层的臭氧分布进行了观测，派了两名人员前往现场进行观测。“ECC on board”是指ECC在同一个气球上进行比较测量，“ECC on橡皮气球”是指ECC与橡皮气球同时发射。2.臭氧化学相关大气次要成分的地面观测;木村实验室在北极冬季产生HCl、HF、HNO_3、O_3、ClONO_2、CH_4和N_2O，3.除基律纳的地面观测数据尚未处理外，对北极观测的结果作了如下审查：（一）对比光学和ECC臭氧探测仪获得的臭氧廓线表明，在30 km以下，两种臭氧廓线吻合较好，在40 km附近，光学探测仪获得的臭氧廓线有明显的结构，而ECC臭氧探测仪获得的臭氧廓线在40 km附近有明显的结构。30 km以上的臭氧廓线随高度单调下降，这表明光学方法在40 km以上也能获得臭氧廓线，而ECC在高海拔地区由于抽气效率低而变得不可靠。(2)在包括1995年在内的两个夏季获得了北极平流层上部的臭氧廓线。

1.Observation of ozone profiles in the arctic summer stratosphere was carried out at Ny Alesund in Spitzbergen, Norway in 1995 using an optical ozone sensor on board a BT-5 high altitude balloon.Two personnels were sent to the site for this observation.Four launches were as follows and good data were obtained for each launch.'ECC on board' means ECC was on the same balloon to make a comparative measurements and 'ECC on rubber balloon' means concurrent launch of ECC with a rubber balloon.2.Ground observation of ozone chemistry related atmospheric minor constituents ; HCl, HF,HNO_3, O_3, ClONO_2, CH_4 and N_2O in the arctic winter was made at Kimura, Sweden in March 1996 with a FTIR.One personnel was sent to the site.3.Results from observations in the arctic, except for the ground observation at Kiruna whose data have not been processed yet, have been examined as follows :(1) Comparison of ozone profiles obtained with an optical sensor and an ECC ozonesonde showed that both profiles agree well each other below 30km and that a distinct structure around 40km was seen in the optically obtained profile while ECC profile above 30km decreases monotonically with altitude.This indicates that ozone profiles can be obtained with the optical method even above 40km while ECC becomes unreliable due to its low pumping efficiency in high altitudes.(2) Ozone profiles up to the upper stratosphere in the arctic have been obtained in two summers including 1995.