大気汚染ガス吸収による酸性雲粒生成過程のモデル化

空气污染气体吸收导致的酸云颗粒形成过程建模

• 批准号: 14048215
• 负责人: 芝 定孝
• 金额: $ 2.37万
• 依托单位: Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research on Priority Areas
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2003
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14048215/
• 关键词: 化学物理; 環境質定量化・予測; 大気汚染防止・浄化; 水循環; 気圏水圏相互作用; 公害防止・対策

本年度は特に大気環境における実場面における雲粒サイズの評価に的を絞り、(1)不均一なサイズから構成される多数の雲粒凝結格(CCN)上に競合的成長する雲粒の平衡サイズを求める事を目指し、物理化学的な考察に基づく新しい数式モデルの組み立て、そのモデルを用いた数値計算により、不均一なサイズから成るCCN上に凝結した雲粒平衡サイズの特徴について検討した。また、(2)CCNの構成が水溶性の単一成分のみでなく、非水溶性ダスト(黄砂など)を含む多成分で構成される場合の雲粒平衡サイズについても新たに数式モデルを組み立て、非水溶性ダストが雲粒平衡半径に及ぼす影響について、モデル計算により検討した。その結果、次の様な事が新たに明らかとなった。(1)異なる粒径の共存する気塊内での大気水蒸気凝結による雲粒平衡半径は、同一サイズクラス内の競合的成長に加えて、異なるサイズクラス間の競合的成長をする為、他のサイズクラスの雲粒平衡半径も大きいサイズのCCNに支配される。(2)CCNの総質量が大きい程、気塊内の水蒸気凝結量は多くなるが、CCNの単位質量当たりの凝結量は逆に少なくなる。CCN総質量の増大は大サイズCCN個数の増加を意味する。(3)ダストサイズが大きい程、水蒸気凝結量(雲粒一個当たり)に対する競合的成長の影響が大きく、また、総水蒸気凝結量がCCN個数密度の増大とともに多くなる。

This year, in the special environment, the cloud particles are divided into three parts: (1) the cloud particles are divided into three parts: (2) the cloud particles are divided into three parts: (3) the cloud particles are divided into three parts: (4) the cloud particles are divided into three parts: (5) the cloud particles are divided into three parts: (6) the cloud particles are divided into three parts: (7) the cloud particles are divided into three parts: (8) the cloud particles are divided into three parts: (1) the cloud particles are divided into three parts: (1) the cloud particles are divided into three parts: (1) the cloud particles are divided into three parts: (1) the cloud particles are divided into three parts: (2) the cloud particles are divided into three parts: (1) the cloud particles are divided into three parts: (3) the cloud particles are divided into three parts: (4) the cloud particles are divided into three parts: (1) the cloud particles are divided into three parts: (1) the cloud particles are divided into three parts: (2) the cloud particles are divided into three parts: (3) the cloud Characteristics of cloud particle balance on CCN (2) The composition of CCN is composed of water-soluble single component, water-insoluble single component (yellow sand) and multi-component. The cloud particle equilibrium radius is composed of new numerical formula, water-insoluble single component and cloud particle equilibrium radius. The result is that the second time, the second time, the third time, the third time, the fourth time, the fourth time. (1)The equilibrium radius of cloud particles in different particle sizes is dominated by the increase of the growth of competition within the same particle size, the increase of the growth of competition between different particle sizes, and the increase of the equilibrium radius of cloud particles in different particle sizes. (2) CCN's total mass is large, the amount of water vapor condensation in the block is large, and the amount of condensation in CCN's unit mass is small. The increase of CCN quality means the increase of CCN number. (3)The influence of water vapor condensation on the growth of CCN number density increases greatly, and the influence of water vapor condensation on CCN number density increases greatly.

项目成果

Shiba, S.: "Development and Application of Computer Techniques to Environmental Studies IX, (Eds. Brebbia, C.A. and Zannetti, P.)"WIT PRESS. 93-96 (2002)

Shiba, S.：“计算机技术在环境研究中的开发和应用 IX，（Eds. Brebbia, C.A. 和 Zannetti, P.）”WIT PRESS。

芝 定孝, 平田雄志, 八木俊策: "競合的成長における雲粒の平衡半径および平衡温度におよぼす凝結核個数密度の影響"第10回地球環境シンポジウム講演会論文集(土木学会). 10. 203-208 (2002)

Sadataka Shiba、Yuji Hirata、Shunsaku Yagi：“竞争增长过程中凝结核数密度对云粒子平衡半径和平衡温度的影响”，第十届全球环境研讨会论文集（日本土木工程师学会）10。 203 -208 (2002)

Shiba, S., Hirata, Y., Yagi, S: "Variation of rainwater quality due to interactive mass transfer between raindrops and atmosphere"Development and Application of Computer Techniques to Environmental Studies IX(Eds.Brebbia, C.A.). 139-148 (2002)

Shiba, S.、Hirata, Y.、Yagi, S：“由于雨滴和大气之间的相互作用的传质而导致的雨水质量变化”计算机技术在环境研究中的发展和应用 IX（Eds.Brebbia，C.A.）。

Shiba, S.: "Effect of CCN Number Density on Radius and Temperature of Cloud Droplet Grown up Competitively"Journal of Global Environment Engineering, JSCE. Vol.9. 65-73 (2003)

Shiba, S.：“CCN 数密度对竞争性生长的云滴半径和温度的影响”，JSCE 全球环境工程学报。

S.Shiba: "Equilibrium size and temperature of cloud droplet due to competitive growth on multi-sized CCN with vapour consumption and heat release"Proc.14th Annual Conference of the Aerosol Society. 14-17 (2003)

S.Shiba：“由于多尺寸 CCN 上的竞争性增长以及蒸汽消耗和热量释放，云滴的平衡尺寸和温度”Proc.第 14 届气溶胶协会年会。