Characteristics of Arctic polar stratospheric clouds in the winter of 1996/1997 inferred from ILAS measurements
Characteristics of Arctic polar stratospheric clouds in the winter of 1996/1997 inferred from ILAS measurements
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根据ILAS测量推断的1996/1997年冬季北极极地平流层云的特征
DOI：
10.1029/2001jd000595
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发表时间：
2002
影响因子：
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通讯作者：
L. Pan
中科院分区：
文献类型：
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作者：
N. Saitoh;S. Hayashida;Y. Sasano;L. Pan
[1]1997年冬季和早春，改进的临边大气光谱仪（ILAS）在北方半球捕获了许多极地平流层云（PSC）事件。同时测量硝酸和气溶胶ILAS有可能推断PSC的组成。气溶胶消光系数和硝酸的数据进行了比较与理论预测值的过冷三元溶液（STS），硝酸二水合物（NAD），硝酸三水合物（NAT）在热力学平衡分类PSC类型。观测结果表明，1997年，含硝酸的固体和液体PSC都在冬季和早春在北极上空形成，直到3月中旬。STS PSC在PSC季节早期，即1月中旬被观察到。在PSC季节后期观察到的大多数PSC具有含硝酸水合物的特征。对温度历史的深入分析表明，1月份观察到的大多数STS事件都经历了形成液体PSC所必需的热条件。3月观察到的含硝酸水合物似乎没有受到任何山脉引起的背风波的影响。讨论了基于天气尺度温度变化的含硝酸水合物生成过程。
[1] The Improved Limb Atmospheric Spectrometer (ILAS) captured many polar stratospheric cloud (PSC) events in the Northern Hemisphere during the winter and early spring of 1997. Simultaneous measurements of nitric acid and aerosols by ILAS made it possible to infer PSC composition. The aerosol extinction coefficient and nitric acid data were compared with the theoretically predicted values for supercooled ternary solution (STS), nitric acid dihydrate (NAD), and nitric acid trihydrate (NAT) at thermodynamic equilibrium to classify PSC types. The observations showed that in 1997, both nitric-acid-containing solid and liquid PSCs formed over the Arctic during winter and early spring, until mid-March. The STS PSCs were observed early in the PSC season, in mid-January. Most of the PSCs observed late in the PSC season had features of nitric-acid-containing hydrates. An intensive analysis of the temperature histories suggested that most of the STS events observed in January had experienced the thermal conditions necessary for the formation of liquid PSCs. The nitric-acid-containing hydrates observed in March seemed not to have been influenced by any mountain-induced lee waves. The process of nitric-acid-containing hydrate formation based on synoptic scale temperature change is discussed.
S.Hayashida：“用卫星传感器观测到的平流层背景气溶胶和极地平流层云 - 颗粒成分和硫酸盐含量的推断 -”J.Soc.Photo Opt.Instrum.Eng.. (2000)
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改进了 5.20 版气体剖面产品的临边大气光谱仪 (ILAS) 数据检索算法
DOI：
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发表时间：
2002
期刊：
Journal of Geophysical Research 107(D24)
影响因子：
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作者：
T.Yokota;H.Tsubaki;et al.
通讯作者：
et al.