Transport of KOSA,SOx, and NOx from Asia to North-polar Region

KOSA、SOx 和 NOx 从亚洲向北极地区的输送

• 批准号: 06041049
• 负责人: IWASAKA Yasunobu
• 金额: $ 12.03万
• 依托单位: Nagoya University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for international Scientific Research
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 1995
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-06041049/
• 关键词: North Polar Aerosols; Freee Atomosphere; Global Diffusion; Volcanic Aerosols; 物質拡散; 火山性エアロゾル

Lidar Measurements on atmospheric aerosols and polar stratospheric clouds were performed at Ny-Aalesund, Norway and Fairbanks, Alaska, USA in winter of 1994/95 and 1995/96. Balloon-borne particle counter also was used to see size distribution of atmospheric particles at Ny-Aalesund, Norway. In summer season of 1994 and 1995 collection of atmospheric aerosols was made in China.According to lidar and balloon measurements at north polar region, stratospheric aerosols were actively transported from low-and mid-latitudes to high latitudes. In winter season aerosol processes in the polar vortex seem to act as effective sink of stratospheric earosols and important role in global budget of stratospheric materials including earosol particulate and gases.Balloon measurements made in summer of 1994 at Beijin suggested that soil particles originating from the groud distributed not only in the free troporphere but also in the lower stratosphere, suugesting that active convection of air affected chemical composition of stratospheric particles in the summer continental atmosphere.Lidar and aircrafts measurements made in Japan showed that lots of particulate matter were transported in the free troposphere from asian continent to west central pasific area. Sometimes the particles were strongly chemically transformed during their traveling in the free troposphere.

1994/95和1995/96年冬季在挪威的Ny-Aalesund和美国阿拉斯加的费尔班克斯进行了大气气溶胶和极地平流层云的激光雷达测量。在挪威的Ny-Aalesund，还使用了气载颗粒物计数器来观察大气颗粒物的粒径分布。1994年和1995年夏季在我国北极地区进行了大气气溶胶的观测，根据激光雷达和气球观测结果，平流层气溶胶从低、中纬度向高纬度的输送是活跃的。冬季极涡中的气溶胶过程似乎是平流层气溶胶的有效汇，在平流层气溶胶颗粒和气体的全球收支中起着重要作用。1994年夏季在北京进行的气球观测表明，来自地面的土壤颗粒不仅分布在自由对流层，而且还分布在平流层下部，日本激光雷达和飞机观测结果表明，夏季大陆大气平流层中有大量颗粒物在对流层中从亚洲大陆输送到中太平洋西部地区。有时粒子在自由对流层中运动时发生强烈的化学变化。

项目成果

D.Zhang: "Tests for Individual Sulfate-Containing Particles in Urban Atmosphere in Beijing" Adv.Atmosph.Sci.12. 343-350 (1995)

D.Zhang：“北京城市大气中单个硫酸盐颗粒的测试”Adv.Atmosph.Sci.12。

Y.Iwasaka: "Polar Vortex Meandering and Stratospheric AerosolDistribution : Lidar Measurements at Alaska" J.Geomag.Geoelectr.(印刷中).

Y.Iwasaka：“极涡蜿蜒和平流层气溶胶分布：阿拉斯加的激光雷达测量”J.Geomag.Geolectr.（正在印刷中）。

Y.Iwasaka: "Transport of Pinatubo Aerosols to the Arctic Region : Lidar Mcasurements in Alaska,Winter 1991/1992" Proc.NIPR Symp.Polar Meteorol.Glaciol.8. 27-33 (1994)

Y.Iwasaka：“皮纳图博气溶胶向北极地区的输送：阿拉斯加的激光雷达测量，1991/1992 年冬季”Proc.NIPR Symp.Polar Meteorol.Glaciol.8。

H.Quan: "Chemical Characteristics of Dust Particles in the Heavy Gust Broken Out at Gansu on 5th May 1993" J.Environm.Chem.4. 857-861 (1994)

H.Quan：“1993年5月5日甘肃大阵风中尘粒的化学特征”J.Environm.Chem.4。

Y.Iwasaka: "Polar Vortex Meandering and Stratospheric Aerosol Distribution : Lidar Measurements at Alaska" J.Geomag.Geoelectr. (in printing).

Y.Iwasaka：“极涡蜿蜒和平流层气溶胶分布：阿拉斯加的激光雷达测量”J.Geomag.Geolectr。