CAJ | 학술논문

利用 Brewer分光光谱仪观测资料分析青藏高原拉萨站近几年大气臭氧的变化特征，结果表明，拉萨上空臭氧主要分布在15～35 km，反演结果的峰值出现在21～25 km。对比拉萨四季臭氧垂直分布发现，它们在平流层中上层的差异不大，且在36 km以上的分布大致相同，差异主要表现在从地面到21 km，冬春季的臭氧数密度大于夏秋季，近4年来拉萨的年平均臭氧总量的变化不大，臭氧总量的极值出现在冬春季节，臭氧总量的月平均值在8和9月较低，2008年6~9月臭氧低值的持续时间是近几年中最长的，达23 d。
이용 Brewer분광광보의관측자료분석청장고원랍살참근궤년대기취양적변화특정，결과표명，랍살상공취양주요분포재15～35 km，반연결과적봉치출현재21～25 km。대비랍살사계취양수직분포발현，타문재평류층중상층적차이불대，차재36 km이상적분포대치상동，차이주요표현재종지면도21 km，동춘계적취양수밀도대우하추계，근4년래랍살적년평균취양총량적변화불대，취양총량적겁치출현재동춘계절，취양총량적월평균치재8화9월교저，2008년6~9월취양저치적지속시간시근궤년중최장적，체23 d。
The variation characteristics of ozone in Lhasa in recent years were ana-lyzed by using Brewer spectrometer observation data. The results showed that ozone was mainly distributed in 15-35 km in atmosphere in Lhasa; the peak value by in-version was in 21-25 km; by comparison of ozone vertical distribution in Lhasa, it can be concluded that ozone differs insignificantly in middle-to-high layers in strato-sphere and the distribution is similar over 36 km. The difference can be observed from the fact that ozone concentration is higher in winter and spring compared with summer and autumn from ground to the height at 21 km. In recent 4 years, annual average of total ozone in Lhasa was of little variations and extreme values of ozone appeared in winter and spring. Monthly averages were lower in August and September, and the lower value of ozone kept longer in 2008 for 23 d.