Tropospheric transport to Syowa Station, Antarctica : contribution from mid to low latitude

南极洲昭和站的对流层输送：中低纬度的贡献

• 批准号: 15310012
• 负责人: MATSUNAGA Katsuji
• 金额: $ 9.79万
• 依托单位: Nagoya University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2003
• 资助国家: 日本
• 起止时间: 2003 至 2005
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-15310012/
• 关键词: Antarctica; Environmental Change; Transport; Aerosol; Rn; CO; Syowa Station; Size distribution; 対流圏物質輸送; 中・低緯度の影響; 南極昭和基地; 大気中エアロゾルの形態; 有機エアロゾル; 大気中のラドン; 大気中のCO; 大気化学; 大気エアロゾル; 長距離輸送; 海洋大気

Atmospheric observations in this study at Syowa Station, Antarctica include measurements of number-size distribution (ca.5 〜 5000 nm) of aerosol particles, soot concentrations, and collections of size-segregated aerosol samples for chemical analysis etc. Atmospheric Rn and CO concentrations were also measured as tracers of air transport from mid to low latitudes. In addition to year round observation at Syowa Station, atmospheric observations using a ship (Shirase) and an airplane (PC-6) were also conducted to obtain spatial distribution of aerosols.Temporal variations of soot and Rn concentrations imply sporadic transport of air masses from mid latitudes during winter and spring associated with migration of low pressure systems. Aerosol concentrations were always high during blizzard conditions with vigorous winds. Aerosol events under calm wind condition were newly found in winter. Aerosol particles having a mode diameter less than 20 nm were observed for several times from late spring to late summer.

本研究在南极洲昭和站进行的大气观测包括测量气溶胶颗粒的数量尺寸分布（约5〜5000 nm）、烟尘浓度以及收集按尺寸划分的气溶胶样品进行化学分析等。还测量了大气中的Rn和CO浓度，作为中低纬度空气输送的示踪剂。除了昭和站的全年观测外，还利用船舶（Shirase）和飞机（PC-6）进行大气观测，以获得气溶胶的空间分布。烟尘和Rn浓度的时间变化意味着冬春季节中纬度地区气团的零星输送与低压系统的迁移有关。在暴风雪和强风的条件下，气溶胶浓度始终很高。冬季无风条件下新发现气溶胶事件。从春末到夏末，我们多次观察到众数直径小于 20 nm 的气溶胶颗粒。

项目成果

Seasonal variation of free tropospheric aerosol particles at Mt. Tateyama, central Japan

• DOI: 10.1029/2003jd003544
• 发表时间: 2003-12
• 期刊: Journal of Geophysical Research
• 作者: K. Osada;M. Kido;H. Iida;K. Matsunaga;Y. Iwasaka;M. Nagatani;H. Nakada

Seasonal variation of chemical composition of aerosols at Syowa station, Antarctica in 2001

2001年南极昭和站气溶胶化学成分的季节变化

• 发表时间: 2003
• 期刊: Polar Meteorology Glaciology 17
• 作者: Kobayashi;H.;K.Hara;M.Shiobara;T.Yamanouchi;K.Osada;S.Ohta
• 通讯作者: S.Ohta

Development of a small size data acquisition system for monitoring continuous measurement systems.

开发用于监控连续测量系统的小型数据采集系统。

• 发表时间: 2005
• 期刊: Antarctic Record vol.49
• 作者: Morimoto;S.;Y. Tanaka
• 通讯作者: Y. Tanaka

Raman lider and aircraft measurements of tropospheric aerosol particles during the Asian dust event over central Japan : case study on 23 April 1996

日本中部亚洲沙尘事件期间对流层气溶胶颗粒的拉曼激光和飞机测量：1996 年 4 月 23 日的案例研究

• 发表时间: 2003
• 期刊: Journal of Geophysical Research 108
• 作者: Sakai;T.;T.Shibata;K.Hara;M.Kido;K.Osada;M.Hayashi;K.Matsunaga;Y.Iwasaka
• 通讯作者: Y.Iwasaka

Vertical distributions of particles and sulfur gases (volatile sulfur compounds and SO2) over East Asia: Comparison with two aircraft-borne measurements under the Asian continental outflow in spring and winter

• DOI: 10.1016/j.atmosenv.2005.09.055
• 发表时间: 2006
• 期刊: Atmospheric Environment
• 影响因子: 5
• 作者: Y. Inomata;Y. Iwasaka;K. Osada;M. Hayashi;I. Mori;M. Kido;K. Hara;T. Sakai