Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.3390/rs11060701 |
| Vertical Structures of Dust Aerosols over East Asia Based on CALIPSO Retrievals | |
| Liu, Di1; Zhao, Tianliang1; Boiyo, Richard1,2; Chen, Siyu3; Lu, Zhengqi1; Wu, Yan4; Zhao, Yang5,6 | |
| 通讯作者 | Zhao, Tianliang ; Chen, Siyu |
| 来源期刊 | REMOTE SENSING
 |
| ISSN | 2072-4292 |
| 出版年 | 2019 |
| 卷号 | 11期号:6 |
| 英文摘要 | The spatiotemporal and especially the vertical distributions of dust aerosols play crucial roles in the climatic effect of dust aerosol. In the present study, the spatial-temporal distribution of dust aerosols over East Asia was investigated using Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) retrievals (01/2007-12/2011) from the perspective of the frequency of dust occurrence (FDO), dust top layer height (TH) and profile of aerosol subtypes. The results showed that a typical dust belt was generated from the dust source regions (the Taklimakan and Gobi Deserts), in the latitude range of 25 degrees N similar to 45 degrees N and reaching eastern China, Japan and Korea and, eventually, the Pacific Ocean. High dust frequencies were found over the dust source regions, with a seasonal sequence from high to low as follows: spring, summer, autumn and winter. Vertically, FDOs peaked at about 2 km over the dust source regions. In contrast, FDOs decreased with altitude over the downwind regions. On the dust belt from dust source regions to downwind regions, the dust top height (TH) was getting higher and higher. The dust TH varied in the range of 1.9-3.1 km above surface elevation (a.s.e.), with high values over the dust source regions and low values in the downwind areas, and a seasonally descending sequence of summer, spring, autumn and winter in accord with the seasonal variation of the boundary layer height. The annual AOD (Aerosol Optical Depth) was generally characterized by two high and two low AOD centers over East Asia. The percent contribution of the Dust Aerosol Optical Depth to the total AOD showed a seasonal variation from high to low as follows: spring, winter, autumn and summer. The vertical profile of the extinction coefficient revealed the predominance of pure dust particles in the dust source regions and a mixture of dust particles and pollutants in the downwind regions. The dust extinction coefficients over the Taklimakan Desert had a seasonal pattern from high to low as follows: spring, winter, summer and autumn. The results of the present study offered an understanding of the horizontal and vertical structures of dust aerosols over East Asia and can be used to evaluate the performance aerosol transport models. |
| 英文关键词 | CALIPSO dust top height frequency of dust occurrence pure dust polluted dust extinction coefficient |
| 类型 | Article |
| 语种 | 英语 |
| 国家 | Peoples R China ; Kenya |
| 开放获取类型 | gold |
| 收录类别 | SCI-E |
| WOS记录号 | WOS:000464554000004 |
| WOS关键词 | TIBETAN PLATEAU ; MINERAL DUST ; ATMOSPHERIC TRANSPORT ; TAKLIMAKAN DESERT ; EMISSION ; PACIFIC ; CLOUD ; EXTINCTION ; DEPOSITION ; POLLUTION |
| WOS类目 | Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology |
| 来源机构 | 兰州大学 ; 南京信息工程大学 |
| 资源类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/218354 |
| 作者单位 | 1.Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Int Joint Lab Climate & Environm Change ILCEC,Sch, Key Lab Aerosol Cloud Precipitat China Meteorol A, Nanjing 210044, Jiangsu, Peoples R China; 2.Meru Univ Sci & Technol, Dept Phys Sci, POB 972-60200, Meru, Kenya; 3.Lanzhou Univ, Key Lab Semiarid Climate Change, Minist Educ, Coll Atmospher Sci, Lanzhou 730000, Gansu, Peoples R China; 4.Heilongjiang Meteorol Bur, Harbin 150030, Heilongjiang, Peoples R China; 5.Chinese Acad Meteorol Sci, State Key Lab SevereWeather, Beijing 100081, Peoples R China; 6.Nanjing Univ Informat Sci & Technol, Nanjing 210044, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Di,Zhao, Tianliang,Boiyo, Richard,et al. Vertical Structures of Dust Aerosols over East Asia Based on CALIPSO Retrievals[J]. 兰州大学, 南京信息工程大学,2019,11(6). |
| APA | Liu, Di.,Zhao, Tianliang.,Boiyo, Richard.,Chen, Siyu.,Lu, Zhengqi.,...&Zhao, Yang.(2019).Vertical Structures of Dust Aerosols over East Asia Based on CALIPSO Retrievals.REMOTE SENSING,11(6). |
| MLA | Liu, Di,et al."Vertical Structures of Dust Aerosols over East Asia Based on CALIPSO Retrievals".REMOTE SENSING 11.6(2019). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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