Large depolarization ratio of free tropospheric aerosols over the Taklamakan Desert revealed by lidar measurements: Possible diffusion and transport of dust particles
文献类型：期刊论文
| 作者 | Iwasaka, Y; Shibata, T; Nagatani, T; Shi, GY; Kim, YS; Matsuki, A; Trochkine, D; Zhang, D; Yamada, M; Nagatani, M |
| 刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
 |
| 出版日期 | 2003-12-13 |
| 卷号 | 108期号:D23页码:9 |
| 关键词 | Kosa particles lidar measurements large depolarization ratio in the free troposphere sharp upper boundary of aerosol layer |
| ISSN号 | 2169-897X |
| DOI | 10.1029/2002JD003267 |
| 通讯作者 | Iwasaka, Y(iwasaka@stelab.nagoya-u.ac.jp) |
| 英文摘要 | Lidar measurements were made at Dunhuang (40degrees00'N, 94degrees30'E), China, to understand the vertical distribution of aerosols in the free troposphere over the Taklamakan desert in summer of 2002. The vertical distributions of the scattering ratio suggested that particulate matter distributed from near the ground to about 6 km in the range of values of about 2 to 5 and rapidly decreased to about 1 at about 6 km. The depolarization ratio indicated that dust particles distributed in a aerosol layer, and the dust particle layer distributed to about 6 km. A very clear boundary was also identified at 6 km in the distribution of the depolarization ratio. Particulate materials were directly collected with a balloonborne particle impactor in the free troposphere over the Taklamakan desert, and an electron microscopic experiment on the particles suggested that the large depolarization ratio was certainly due to irregularly shaped dust particles. Vertical profiles of the scattering ratio and depolarization ratio suggested that nonspherically shaped dust particles floated from near the surface to about 6 km and this corresponded well with the wind system suggested by Sun et al. [ 2001] and Sun [ 2002], who reported that the typical surface wind was easterly and/or northerly in the Tarimu Basin, and westerly wind dominated above about 5 km. The trajectory of the balloon also showed that westerly wind appeared at about 4 km, and the wind speed largely increased above about 5 km. This suggests the possible long-range transport of dust particles entrained at an elevation of >5 km. |
| 收录类别 | SCI |
| WOS关键词 | LONG-RANGE TRANSPORT ; NORTH PACIFIC ; YELLOW SAND ; APRIL 1998 ; EAST-ASIA ; CLIMATE ; STORMS ; NAGOYA ; JAPAN |
| WOS研究方向 | Meteorology & Atmospheric Sciences |
| WOS类目 | Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000187492400001 |
| 出版者 | AMER GEOPHYSICAL UNION |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2556910 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Iwasaka, Y |
| 作者单位 | 1.Nagoya Univ, Grad Sch Environm Studies, Chikusa Ku, Nagoya, Aichi 4648601, Japan 2.Chinese Acad Sci, Inst Atmospher Phys, Beijing 100029, Peoples R China 3.Nagoya Univ, Grad Sch Sci, Chikusa Ku, Nagoya, Aichi 4648601, Japan 4.Prefectural Univ Kumamoto, Fac Environm & Symbiot Sci, Kumamoto 8628502, Japan 5.Nagoya Univ, Solar Terr Environm Lab, Toyokawa 4428507, Japan 6.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China 7.Fukui Prefecture Univ, Fukui 9108507, Japan |
| 推荐引用方式 GB/T 7714 | Iwasaka, Y,Shibata, T,Nagatani, T,et al. Large depolarization ratio of free tropospheric aerosols over the Taklamakan Desert revealed by lidar measurements: Possible diffusion and transport of dust particles[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2003,108(D23):9. |
| APA | Iwasaka, Y.,Shibata, T.,Nagatani, T.,Shi, GY.,Kim, YS.,...&Kawahira, K.(2003).Large depolarization ratio of free tropospheric aerosols over the Taklamakan Desert revealed by lidar measurements: Possible diffusion and transport of dust particles.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,108(D23),9. |
| MLA | Iwasaka, Y,et al."Large depolarization ratio of free tropospheric aerosols over the Taklamakan Desert revealed by lidar measurements: Possible diffusion and transport of dust particles".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 108.D23(2003):9. |
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来源：寒区旱区环境与工程研究所
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