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.

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区平流层云（PSC）事件。ILAS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）和硝酸三水合物（NAT）粒子在平衡推断所观察到的PSC粒子的化学组成。观测表明，1997年，含硝酸的固体和液体PSC在冬季和早春形成于北极上空，直到3月中旬。一些典型的STS PSC在1月中旬被发现，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月份观测到的大多数STS粒子都经历了形成液体粒子所必需的热条件。

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