Research of Contaminated Aerosol Distribution by Artificial Satellite and Evaluation of the Aerosol Effect on Climate in the East Asia

东亚地区人造卫星污染气溶胶分布研究及气溶胶对气候影响评价

• 批准号: 17360251
• 负责人: OHTA Sachio
• 金额: $ 10.18万
• 依托单位: Hokkaido University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2005
• 资助国家: 日本
• 起止时间: 2005 至 2007
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-17360251/
• 关键词: tmospheric aerosols; Artificial satellite analysis; Scattering coefficient; Absorption coefficient; Integrating sphere method; Aerosol model; Chemical characterization; Particle size distribution; 衛星リモートセンシング; 化学組成分析; 人工衛星リモートセンシング; 陸域のエアロゾル分布

Atmospheric aerosols affect on climate due to scattering and absorption of solar radiation. In the East Asia, estimation of the climatic effect is significant because of recent industrial development. For the evaluation, we need the distribution of optical depth and optical properties (scattering and absorption coefficients) of aerosols. It is effective for determination of the optical depth distribution by using radiance analysis measured by artificial satellite, though the optical properties are necessary to the analysis. In the research we thus made measurement of the optical properties of atmospheric aerosols at Fukue island, Nagasaki prefecture in spring and summer. Single scattering albedo (scattering coefficient / (scattering coefficient + absorption coefficient)) of aerosols were 0.8〜0.9 and 0.9〜0.99 in summer and spring, respectively. Absorption coefficient measured by integrated sphere method had highly correlation with those by PSAP method. It is, further, practicable to determine the distribution of optical depth by artificial satellite analysis, if we assign the optical properties by using chemical characterization of aerosols. We made aerosol models based on the chemical analysis. Comparing the model calculation with the measured results, we concluded that the optimum aerosol model are made up of internal mixture and geometric number mean diameter of 0.05〜0.07μm in lognormal size distribution function.

大气气溶胶对太阳辐射的散射和吸收对气候产生影响。在东亚，由于最近的工业发展，对气候影响的估计是重要的。为了评估，我们需要气溶胶的光学厚度和光学特性（散射和吸收系数）的分布。利用人造卫星测量的辐射亮度分析来确定光学厚度分布是有效的，但这种分析需要光学特性。因此，在研究中，我们在春季和夏季在长崎县的上江岛测量了大气气溶胶的光学特性。气溶胶单次散射系数（散射系数/（散射系数+吸收系数））在夏季和春季分别为0.8 ~ 0.9和0.9 ~ 0.99。积分球法和PSAP法测得的吸收系数具有高度的相关性。如果利用气溶胶的化学特征来分配光学特性，则利用人造卫星分析来确定光学厚度的分布是可行的。在化学分析的基础上建立了气溶胶模型。将模型计算结果与实测结果进行比较，得出最佳气溶胶模型由内部混合物和对数正态粒径分布函数中几何数平均粒径为0.05 ~ 0.07μm组成。

项目成果

Application of PTFE/Non-waven fabric filter on the measurement method of PM2.5 by the beta-ray absorption technique

PTFE/无波织物过滤器在β射线吸收技术PM2.5测量方法中的应用

• 发表时间: 2007
• 期刊: Journal of Atmospheric Environmental Science Vol. 42
• 作者: Tsukai;M. and Okumura;M.;Vladimir N. Makarov;篠原 政良;Masayoshi Shinohara
• 通讯作者: Masayoshi Shinohara

Evaluation of optical properties of atmospheric aerosols in the East China Sea

东海大气气溶胶光学特性评价

• 发表时间: 2007
• 作者: Tsukai;M. and Okumura;M.;Vladimir N. Makarov;篠原 政良;Masayoshi Shinohara;Rebecca Matichuk;市原 健一郎;Kohei Ogawa
• 通讯作者: Kohei Ogawa

Variation of atmospheric turbidity over Japan

日本大气浊度变化

• 发表时间: 2006
• 作者: Tsukai;M. and Okumura;M.;Vladimir N. Makarov;篠原 政良;Masayoshi Shinohara;Rebecca Matichuk;市原 健一郎;Kohei Ogawa;Ken-ichiro Ichihara;小川 洸平;Kohei Ogawa
• 通讯作者: Kohei Ogawa

A Decade of Aerosol and Gas Precursor Chemical Characterization at Mt. Lemmon, Arizona (1992 to 2002)

• DOI: 10.2151/jmsj.84.653
• 发表时间: 2006-08
• 期刊: Journal of the Meteorological Society of Japan
• 影响因子: 3.1
• 作者: R. Matichuk;B. Barbaris;E. Betterton;M. Hori;Naoto Murao;S. Ohta;D. Ward

Variation of atmospheric aerosol carbon concentration in Yakutia

雅库特大气气溶胶碳浓度变化

• 发表时间: 2007
• 期刊: Journal of Global Environment Engineering 12
• 作者: Tsukai;M. and Okumura;M.;Vladimir N. Makarov
• 通讯作者: Vladimir N. Makarov