Ozone Chemistry during the 2002 Antarctic Vortex Split
Ozone Chemistry during the 2002 Antarctic Vortex Split
复制标题
2002 年南极涡旋分裂期间的臭氧化学
DOI：
10.1175/jas-3330.1
复制
发表时间：
2005
影响因子：
3.1
通讯作者：
R. Müller
中科院分区：
文献类型：
--
作者：
J. Grooß;P. Konopka;R. Müller
摘要2002年9月，南极极涡受到扰动，并分裂成两个部分，这是由于平流层异常早期的大变暖造成的。本研究使用平流层化学拉格朗日模型（CLaMS）讨论了这一事件的化学后果。模拟的化学初始化是基于卤素掩星实验（HALOE）测量。由于其拉格朗日性质，CLaMS非常适合模拟在此期间演化的小尺度细丝。2002年10月，哈洛天文台数次观测到中纬度地区的涡丝。模拟结果与HALOE观测结果吻合较好。模拟进一步表明，与涡旋分裂相关的变暖引发了非常迅速的氯失活。相应地，极涡部分的臭氧消耗率迅速下降到零。在极涡之外，中纬度地区的气团被输送到...
Abstract In September 2002, the Antarctic polar vortex was disturbed, and it split into two parts caused by an unusually early stratospheric major warming. This study discusses the chemical consequences of this event using the Chemical Lagrangian Model of the Stratosphere (CLaMS). The chemical initialization of the simulation is based on Halogen Occultation Experiment (HALOE) measurements. Because of its Lagrangian nature, CLaMS is well suited for simulating the small-scale filaments that evolve during this period. Filaments of vortex origin in the midlatitudes were observed by HALOE several times in October 2002. The results of the simulation agree well with these HALOE observations. The simulation further indicates a very rapid chlorine deactivation that is triggered by the warming associated with the split of the vortex. Correspondingly, the ozone depletion rates in the polar vortex parts rapidly decrease to zero. Outside the polar vortex, where air masses of midlatitude origin were transported to the ...