Uncertainty analysis of projections of ozone-depleting substances: mixing ratios, EESC, ODPs, and GWPs

Uncertainty analysis of projections of ozone-depleting substances: mixing ratios, EESC, ODPs, and GWPs
复制标题

臭氧消耗物质预测的不确定性分析:混合比、EESC、ODP 和 GWP

DOI:
10.5194/acp-14-2757-2014
复制
发表时间:
2013
影响因子:
6.3
通讯作者:
J. Daniel
J. Daniel
中科院分区:
地球科学1区
文献类型:
--
作者:
G. Velders;J. Daniel

文献摘要

参考文献

被引文献

相似文献

抽象的。消耗臭氧层物质从大气中去除的速度决定了这些消耗臭氧层物质的寿命,也是决定未来几十年臭氧层恢复速度的关键因素。在此,我们利用2013年世界气候研究方案/平流层进程及其在气候中的作用对消耗臭氧层物质寿命及其不确定性的评估,对消耗臭氧层物质未来的混合比例、平流层有效氯当量水平、臭氧消耗潜能值和全球升温潜能值进行了全面的不确定性分析。EESC恢复到1980年前水平的年份(这是一个通常用来表示从消耗臭氧层物质引起的臭氧消耗中恢复的程度的指标),根据环境评估的寿命,中纬度地区为2048年,南极地区为2075年,分别比世界气象组织2011年评估的寿命晚了大约2年和4年。然而,这种恢复到1980年水平的不确定性远远大于寿命变化造成的变化。EESC恢复到1980年前水平的年份范围为中纬度地区的2039年至2064年(95%置信区间)和南极春季的2061年至2105年。对这些范围的主要贡献来自寿命的不确定性,其他建模参数的不确定性贡献较小。通过不确定性分析得出的收益估计的前几年,即,2039年(中纬度地区)和2061年(南极春季地区),与假设的臭氧消耗物质排放于2014年停止的情景相当。范围的较后端,即,2064年(中纬度地区)和2105年(南极春季),也可以通过额外排放约7 Mt CFC-11当量的设想方案获得。(eq. - 这相当于2014年至2050年所有消耗臭氧层物质预计累积人为排放量的约2倍,或2014年至2050年氟氯烃预计累积排放量的约12倍。
Abstract. The rates at which ozone-depleting substances (ODSs) are removed from the atmosphere, which determine the lifetimes of these ODSs, are key factors for determining the rate of ozone layer recovery in the coming decades. We present here a comprehensive uncertainty analysis of future mixing ratios of ODSs, levels of equivalent effective stratospheric chlorine (EESC), ozone depletion potentials, and global warming potentials (GWPs), using, among other information, the 2013 WCRP/SPARC (World Climate Research Programme/Stratospheric Processes and their Role in Climate) assessment of lifetimes of ODSs and their uncertainties. The year EESC returns to pre-1980 levels, a metric commonly used to indicate a level of recovery from ODS-induced ozone depletion, is 2048 for midlatitudes and 2075 for Antarctic conditions based on the lifetimes from the SPARC assessment, which is about 2 and 4 yr, respectively, later than based on the lifetimes from the WMO (World Meteorological Organization) assessment of 2011. However, the uncertainty in this return to 1980 levels is much larger than the shift due to this change in lifetimes. The year EESC returns to pre-1980 levels ranges from 2039 to 2064 (95% confidence interval) for midlatitudes and from 2061 to 2105 for the Antarctic spring. The primary contribution to these ranges comes from the uncertainty in the lifetimes, with smaller contributions from uncertainties in other modeled parameters. The earlier years of the return estimates derived by the uncertainty analysis, i.e., 2039 for midlatitudes and 2061 for Antarctic spring, are comparable to a hypothetical scenario in which emissions of ODSs cease in 2014. The later end of the range, i.e., 2064 for midlatitudes and 2105 for Antarctic spring, can also be obtained by a scenario with an additional emission of about 7 Mt CFC-11 eq. (eq. – equivalent) in 2015, which is the same as about 2 times the projected cumulative anthropogenic emissions of all ODSs from 2014 to 2050, or about 12 times the projected cumulative HCFC emissions from 2014 to 2050.
DOI: 10.5194/acp-9-3911-2009
发表时间: 2009-06
影响因子: 6.3
作者:
P. Martinerie;E. Nourtier-Mazauric;J. Barnola;W. Sturges;D. Worton;E. Atlas;L. K. Gohar;K. Shine;G. Brasseur
通讯作者: P. Martinerie;E. Nourtier-Mazauric;J. Barnola;W. Sturges;D. Worton;E. Atlas;L. K. Gohar;K. Shine;G. Brasseur
基于观测的十种重要来源气体的平流层释放分数、寿命和臭氧消耗潜力的评估
DOI: 10.5194/acp-13-2779-2013
发表时间: 2013
影响因子: 6.3
作者:
Laube J
通讯作者: Laube J