A comparison of measurements from ATMOS and instruments aboard the ER‐2 aircraft: Halogenated gases
A comparison of measurements from ATMOS and instruments aboard the ER‐2 aircraft: Halogenated gases
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ATMOS 和 ER-2 飞机上的仪器测量结果的比较：卤化气体
DOI：
10.1029/96gl01678
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发表时间：
1996
影响因子：
5.2
通讯作者：
G. Stiller
中科院分区：
文献类型：
--
作者：
A. Chang;R. Salawitch;H. Michelsen;M. Gunson;M. Abrams;R. Zander;C. Rinsland;J. Elkins;G. Dutton;C. Volk;C. Webster;R. May;D. Fahey;R. Gao;M. Loewenstein;J. Podolske;R. Stimpfle;D. Kohn;M. Proffitt;J. Margitan;K. R. Chan;M. Abbas;A. Goldman;F. Irion;G. Manney;M. Newchurch;G. Stiller
我们将ATLAS-3航天飞机使命上的ATMOS傅里叶变换光谱仪测量的中纬度平流层下部N2 O、CFC-11、CFC-12、CCl 4、SF6和HCl的体积混合比分布与1994年11月从NASA ER-2飞机上获得的现场测量结果进行了比较。ATMOS与[CFC-11]、[CFC-12]和[SF6]与[N2 O]的原位相关性吻合良好。与ER-2数据相比，ATMOS测量的[CCl 4]高15%，但在系统不确定性范围内一致。[HCl]与[N2 O]的ATMOS观测结果在[HCl] > 1 ppbv的ER-2数据的± 10%以内，但对于较小的[HCl]，超过原位测量的较大分数。[ClONO 2]的ATMOS测量值与[ClO]、[NO]和[O3]的原位观测值吻合良好。由ATMOS观测到的[HCl]和[ClONO 2]的总和，加上用光化学模型估算的[ClO]的微小贡献，与从氯源气体的原位测量推断的无机氯水平一致。
We compare volume mixing ratio profiles of N2O, CFC-11, CFC-12, CCl4, SF6, and HCl in the mid-latitude lower stratosphere measured by the ATMOS Fourier transform spectrometer on the ATLAS-3 Space Shuttle Mission with in situ measurements acquired from the NASA ER-2 aircraft during Nov 1994. Good agreement is found between ATMOS and in situ correlations of [CFC-11], [CFC-12], and [SF6] with [N2O]. ATMOS measurements of [CCl4] are 15% high compared to ER-2 data, but agree within the systematic uncertainties. ATMOS observations of [HCl] vs [N2O] are within ∼10% of ER-2 data for [HCl] > 1 ppbv, but exceed in situ measurements by larger fractional amounts for smaller [HCl]. ATMOS measurements of [ClONO2] agree well with values inferred from in situ observations of [ClO], [NO], and [O3]. The sum of [HCl] and [ClONO2] observed by ATMOS, supplemented by a minor contribution from [ClO] estimated with a photochemical model, is consistent with the levels of inorganic chlorine inferred from in situ measurements of chlorine source gases.