Ozone destruction and production rates between spring and autumn in the Arctic stratosphere
Ozone destruction and production rates between spring and autumn in the Arctic stratosphere
复制标题
北极平流层春季和秋季之间的臭氧破坏和生产率
DOI：
10.1029/2000gl011404
复制
发表时间：
2000
影响因子：
5.2
通讯作者：
T. Bui
中科院分区：
文献类型：
--
作者：
D. W. Fahey;R. Gao;L. A. D. Negro;E. Keim;S. R. Kawa;R. Salawitch;P. Wennberg;T. Hanisco;E. Lanzendorf;K. K. Perkins;Steven A. Lloyd;William H. Swartz;M. Proffitt;J. Margitan;James C. Wilson;R. Stimpfle;R. C. Cohen;C. T. McElroy;C. R. Webster;M. Loewenstein;J. W. Elkins;T. Bui
在1997年春季至初秋期间，在北极平流层下部（18至20公里）进行了根茎和长寿命物种的原位测量。测量包括O3、ClO、OH、HO2、NO、NO2、N2O、CO和开销O3。一个受这些和其他观测约束的光化学箱模型被用来计算该地区臭氧的日平均破坏和生成速率。这些速率显示出强烈的依赖于太阳照射和环境O3。总破坏率在夏季达到19%/月，表明NOx和HOx催化循环在整个时期起主导作用。臭氧的产量只有在盛夏的航空包裹中才会显著增加。O3的变化与破坏速率和输送效应的比较表明，春季的破坏作用占主导地位，初秋的输送作用增加。
In situ measurements of radical and long‐lived species were made in the lower Arctic stratosphere (18 to 20 km) between spring and early autumn in 1997. The measurements include O3, ClO, OH, HO2, NO, NO2, N2O, CO, and overhead O3. A photochemical box model constrained by these and other observations is used to compute the diurnally averaged destruction and production rates of O3 in this region. The rates show a strong dependence on solar exposure and ambient O3. Total destruction rates, which reach 19%/month in summer, reveal the predominant role of NOx and HOx catalytic cycles throughout the period. Production of O3 is significant only in midsummer air parcels. A comparison of observed O3 changes with destruction rates and transport effects indicates the predominant role of destruction in spring and an increased role of transport by early autumn.