Study on inference of particle composition of the Polar Storatospheric Clouds observed with satellite sensors

卫星传感器观测极地平流层云粒子成分推断研究

• 批准号: 13640438
• 负责人: HAYASHIDA Sachiko
• 金额: $ 2.18万
• 依托单位: Nara Women's University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-13640438/
• 关键词: Atomospheric Science; Polar Stratospheric Clouds; Stratospheric Aerosol; Stratospheric Ozone

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. The ILAS 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) particles at equilibrium to infer the chemical composition of the observed PSC particles. The observations showed that in 1997, nitric acid-containing solid and liquid PSCs formed over the Arctic during winter and early spring, until mid-March. Some typical STS PSCs were found in mid-January, though some of the events seemed to involve ice particles. 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 particles observed in January had experienced the thermal conditions necessary for the formation of liquid particles.

改进的临边大气光谱仪（ILAS）在1997年冬季和早春期间捕获了北半球的许多极地平流层云（PSC）事件。将ILAS气溶胶消光系数和硝酸数据与过冷三元溶液（STS）、二水硝酸（NAD）和三水硝酸（NAT）的理论预测值进行了比较 粒子处于平衡状态，以推断观察到的 PSC 粒子的化学成分。观测结果表明，1997年冬季和早春期间，直到3月中旬，北极上空形成了含硝酸的固体和液体PSC。一月中旬发现了一些典型的 STS PSC，尽管其中一些事件似乎涉及冰粒。在 PSC 季节后期观察到的大多数 PSC 都具有含硝酸水合物的特征。对温度历史的深入分析表明，一月份观测到的大多数 STS 颗粒都经历了形成液体颗粒所需的热条件。

项目成果

N.Sitoh, S.Hayashida, Y.Sasano, and L.L.Pan: "Characteristics of Arctic polar stratospheric clouds in the winter of 1996/1997 inferred from ILAS measurements"Journal of Geophysical Research. Vol.107, No.2. ILS 2-1-ILS 2-14 (2002)

N.Sitoh、S.Hayashida、Y.Sasano 和 L.L.Pan：“根据 ILAS 测量推断的 1996/1997 年冬季北极极地平流层云的特征”地球物理研究杂志。

S.Hayashida and M.Horikawa: "Anti-correlation between the extinction and the Angstrom parameter of the stratospheric aerosol based on the multiple wavelength measurements with SAGE II -as a characteristic of the decay period following major volcanic erupt

S.Hayashida 和 M.Horikawa：“基于 SAGE II 的多波长测量，平流层气溶胶的灭绝与埃参数之间的反相关性 - 作为主要火山喷发后衰减期的特征

N.Saitoh, S.Hayashida, Y.Sasano, L.L.Pan: "Characteristics of Arctic Polar stratospheric clouds in the winter of 1996/1997 inferred from ILAS measurements"Journal of Geophysical Research. (印刷中).

N.Saitoh、S.Hayashida、Y.Sasano、L.L.Pan：“根据 ILAS 测量推断的 1996/1997 年冬季北极平流层云的特征”地球物理研究杂志（正在出版）。

S.Hayashida, M.Horikawa: "Anti-correlation between the extinction and the Angstrom parameter of the stratospheric aerosol based on the multiple wavelength measurements with SAGE II -as a characteristic of the decay period following major volcanic eruption

S.Hayashida、M.Horikawa：“基于 SAGE II 的多波长测量，平流层气溶胶的灭绝与埃参数之间的反相关性 - 作为主要火山喷发后衰减期的特征

Pan, L.L., W.J.Randel, H.Nakajima, S.T.Massie, H.Kanzawa, Y.Sasano, T.Yokota, T.Sugita, S.Hayashida, S.Oshchepkov: "Satellite Observation of Dehydration in the Arctic Polar Stratsphere"Geophysical Research Letters. Vol.29, No.8. 25-1-25-4 (2002)

Pan, L.L., W.J.Randel, H.Nakajima, S.T.Massie, H.Kanzawa, Y.Sasano, T.Yokota, T.Sugita, S.Hayashida, S.Oshchepkov：“北极极地平流层脱水卫星观测”地球物理