Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.atmosres.2019.104797 |
Role of Cyclone "Ockhi" in the re-distribution of aerosols and its impact on the precipitation over the Arabian Sea | |
Nair, Arun1; Das, Siddarth S.2; Thomas, Abin1; Sarangi, Chandan3; Kanawade, Vijay P.1 | |
2020-05-01 | |
发表期刊 | ATMOSPHERIC RESEARCH
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ISSN | 0169-8095 |
EISSN | 1873-2895 |
出版年 | 2020 |
卷号 | 235 |
文章类型 | Article |
语种 | 英语 |
国家 | India; USA |
英文摘要 | Tropical cyclone Ockhi, which matured into a very severe cyclonic storm (VSCS) in the southeast Arabian Sea, took atypical track over the Arabian Sea. Concurrently, an abrupt reduction in the precipitation rate, accompanied by weak updraft in the eye, was observed. The simultaneous presence of the capped inversion associated with the decreasing (increasing) convective available potential energy (convective inhibition) was observed after it matured into VSCS at 14:30 h local time on 1 December 2017. As cyclone Ockhi matured into VSCS, the major fraction of aerosols was pulled towards the cyclone from highly polluted Indo-Gangetic Plain. As a result, aerosol loading off the west coast and over Gujarat state during the intensifying and dissipating stages of cyclone Ockhi was found to be higher than during the mature stages, possibly due to lower wet scavenging arising from the capped inversion. Analysis of cloud microphysical properties revealed the presence of thicker convective tower clouds during the intensifying stages, associated with lower outgoing longwave radiation, while occurrence of towering high clouds reduced during mature and dissipating stages of the Cyclone Ockhi. This finding is substantiated by a narrow distribution of hydrometeors and the decreasing ice cloud effective radius with increasing altitude, which might have played a role in the reduced precipitation efficiency of cloud systems. These results have an important implication for re-distribution of aerosols and their impact on precipitation pattern under prevalent atmospheric circulation. |
英文关键词 | Ockhi Arabian Sea Aerosol-cloud interactions Cyclogenesis |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000525322800026 |
WOS关键词 | INDO-GANGETIC PLAIN ; BLACK CARBON AEROSOLS ; OPTICAL DEPTH ; SOUTH-ASIA ; INTENSITY ; SATELLITE ; REANALYSIS ; MODEL ; AIR ; SIMULATIONS |
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/278839 |
专题 | 地球科学 |
作者单位 | 1.Univ Hyderabad, Ctr Earth Ocean & Atmospher Sci, Hyderabad, Andhra Pradesh, India; 2.Vikram Sarabhai Space Ctr, Space Phys Lab, Thiruvananthapuram, Kerala, India; 3.Pacific Northwest Natl Lab, Richland, WA 99352 USA |
推荐引用方式 GB/T 7714 | Nair, Arun,Das, Siddarth S.,Thomas, Abin,et al. Role of Cyclone "Ockhi" in the re-distribution of aerosols and its impact on the precipitation over the Arabian Sea[J]. ATMOSPHERIC RESEARCH,2020,235. |
APA | Nair, Arun,Das, Siddarth S.,Thomas, Abin,Sarangi, Chandan,&Kanawade, Vijay P..(2020).Role of Cyclone "Ockhi" in the re-distribution of aerosols and its impact on the precipitation over the Arabian Sea.ATMOSPHERIC RESEARCH,235. |
MLA | Nair, Arun,et al."Role of Cyclone "Ockhi" in the re-distribution of aerosols and its impact on the precipitation over the Arabian Sea".ATMOSPHERIC RESEARCH 235(2020). |
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