Injection of iodine to the stratosphere
Injection of iodine to the stratosphere
复制标题
向平流层注入碘
DOI：
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复制
发表时间：
2015
期刊：
影响因子：
--
通讯作者：
R. Volkamer
中科院分区：
文献类型：
--
作者：
A. Saiz‐Lopez;S. Baidar;C. Cuevas;T. Koenig;R. Fernández;B. Dix;D. Kinnison;J. Lamarque;X. Rodriguez;T. Campos;R. Volkamer
我们报告了一个新的估计注入平流层的碘的基础上新的白天（太阳天顶角< 45°）飞机观测热带对流层顶和全球大气模式与碘光化学的最新知识。结果表明，显著水平的总活性碘（0.25-0.7万亿分之一体积），比可接受的上限大2至5倍，可以通过热带对流外流注入平流层。在这些碘水平下，模拟的碘催化循环占热带平流层下部当代臭氧损失的30%，并且可以产生相当于甚至大于非常短寿命的溴碳的平流层臭氧消耗潜力。因此，我们建议在评估平流层臭氧层的历史和未来演变时，需要考虑碘的来源和化学性质。
We report a new estimation of the injection of iodine into the stratosphere based on novel daytime (solar zenith angle < 45°) aircraft observations in the tropical tropopause layer and a global atmospheric model with the most recent knowledge about iodine photochemistry. The results indicate that significant levels of total reactive iodine (0.25–0.7 parts per trillion by volume), between 2 and 5 times larger than the accepted upper limits, can be injected into the stratosphere via tropical convective outflow. At these iodine levels, modeled iodine catalytic cycles account for up to 30% of the contemporary ozone loss in the tropical lower stratosphere and can exert a stratospheric ozone depletion potential equivalent to, or even larger than, that of very short‐lived bromocarbons. Therefore, we suggest that iodine sources and chemistry need to be considered in assessments of the historical and future evolution of the stratospheric ozone layer.
影响因子：
6.3
作者：
Aschmann, J.;Sinnhuber, B. -M.
通讯作者：
Sinnhuber, B. -M.
DOI：
10.1016/j.jqsrt.2010.12.009
发表时间：
2011-04-01
影响因子：
2.3
作者：
Deutschmann, Tim;Beirle, Steffen;Pfeilsticker, Klaus
通讯作者：
Pfeilsticker, Klaus