Uncertainties in reactive uptake coefficients for solid stratospheric particles—2. Effect on ozone depletion
Uncertainties in reactive uptake coefficients for solid stratospheric particles—2. Effect on ozone depletion
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DOI：
10.1029/97gl01684
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发表时间：
1997-07
影响因子：
5.2
通讯作者：
K. Carslaw;T. Peter;R. Müller
中科院分区：
文献类型：
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作者：
K. Carslaw;T. Peter;R. Müller
在光化学盒模式中，HCl、ClONO2和HOCl3与三水硝酸(NAT)和四水硫酸(SAT)反应的反应吸收系数的不确定性被证明影响模拟的北极平流层臭氧消耗。造成这种差异的主要原因是初冬到仲冬的ClONO_2+HCl、→、Cl2+HNO_3反应。在此期间，当假定固体PSC存在的上限时，预测的HCl和ClONO2的差异将在几周内超过1ppbv。与假定形成固体颗粒的情况相比，当液态气溶胶持续整个冬季时，臭氧消耗更大。
Uncertainties in reactive uptake coefficients for reactions involving HCl, ClONO2 and HOCl on nitric acid trihydrate (NAT) and sulfuric acid tetrahydrate (SAT) are shown to affect modeled Arctic stratospheric ozone depletion in a photochemical box model. The main contribution to the difference arises from the reaction ClONO2 + HCl → Cl2 + HNO3 in early to mid‐winter. During this period, differences in predicted HCl and ClONO2 are more than 1 ppbv for several weeks when an upper limit for solid PSC existence is assumed. Ozone depletion is greater when liquid aerosols persist through the winter compared with cases where solid particles are assumed to form.