Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017JD027643 |
Vertical Structure of Aerosols and Mineral Dust Over the Bay of Bengal From Multisatellite Observations | |
Lakshmi, N. B.; Nair, Vijayakumar S.; Babu, S. Suresh | |
2017-12-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
![]() |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2017 |
卷号 | 122期号:23 |
文章类型 | Article |
语种 | 英语 |
国家 | India |
英文摘要 | The vertical distribution of aerosol and dust extinction coefficient over the Bay of Bengal is examined using the satellite observations (Cloud Aerosol Lidar with Orthogonal Polarization (CALIOP) and Moderate Resolution Imaging Spectroradiometer (MODIS)) for the period from 2006 to 2017. Distinct seasonal pattern is observed in the vertical structure of both aerosol and dust over the Bay of Bengal with an enhancement of 24% in the aerosol extinction above 1km from winter (December, January and February) to premonsoon (March, April, and May). Significant contribution of dust is observed over the northern Bay of Bengal during premonsoon season where 22% of the total aerosol extinction is contributed by dust aerosols transported from the nearby continental regions. During winter, dust transport is found to be less significant with fractional contribution of similar to 10%-13% to the total aerosol optical depth over the Bay of Bengal. MODIS-derived dust fraction (fine mode based) shows an overestimation up to twofold compared to CALIOP dust fraction (depolarization based), whereas the Goddard Chemistry Aerosol Radiation and Transport-simulated dust fraction underestimates the satellite-derived dust fractions over the Bay of Bengal. Though the long-term variation in dust aerosol showed a decreasing trend over the Bay of Bengal, the confidence level is insufficient in establishing the robustness of the observed trend. However, significant dust-induced heating is observed above the boundary layer during premonsoon season. This dust-induced elevated heating can affect the convection over the Bay of Bengal which will have implication on the monsoon dynamics over the Indian region. |
英文关键词 | aerosol vertical distribution dust fraction CALIPSO Bay of Bengal |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000419396500019 |
WOS关键词 | TO-BACKSCATTER RATIO ; OPTICAL-PROPERTIES ; RAMAN LIDAR ; ASIAN DUST ; SAHARAN DUST ; OCEAN BIOGEOCHEMISTRY ; TROPOSPHERIC AEROSOL ; ARABIAN SEA ; CALIPSO ; MODIS |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/32667 |
专题 | 气候变化 |
作者单位 | Vikram Sarabhai Space Ctr, Space Phys Lab, Thiruvananthapuram, Kerala, India |
推荐引用方式 GB/T 7714 | Lakshmi, N. B.,Nair, Vijayakumar S.,Babu, S. Suresh. Vertical Structure of Aerosols and Mineral Dust Over the Bay of Bengal From Multisatellite Observations[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017,122(23). |
APA | Lakshmi, N. B.,Nair, Vijayakumar S.,&Babu, S. Suresh.(2017).Vertical Structure of Aerosols and Mineral Dust Over the Bay of Bengal From Multisatellite Observations.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,122(23). |
MLA | Lakshmi, N. B.,et al."Vertical Structure of Aerosols and Mineral Dust Over the Bay of Bengal From Multisatellite Observations".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 122.23(2017). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论