气候变化领域集成服务门户(CCPortal): Analysis of aerosol-cloud interactions and their implications for precipitation formation using aircraft observations over the United Arab Emirates

CCPortal

DOI	10.5194/acp-21-12543-2021
	Analysis of aerosol-cloud interactions and their implications for precipitation formation using aircraft observations over the United Arab Emirates
	Wehbe Y.; Tessendorf S.A.; Weeks C.; Bruintjes R.; Xue L.; Rasmussen R.; Lawson P.; Woods S.; Temimi M.
发表日期	2021
ISSN	1680-7316
起始页码	12543
结束页码	12560
卷号	21 期号:16
英文摘要	Aerosol and cloud microphysical measurements were collected by a research aircraft during August 2019 over the United Arab Emirates (UAE). The majority of scientific flights targeted summertime convection along the eastern Al Hajar Mountains bordering Oman, while one flight sampled non-orographic clouds over the western UAE near the Saudi Arabian border. In this work, we study the evolution of growing cloud turrets from cloud base (9 °C) up to the capping inversion level (-12 °C) using coincident cloud particle imagery and particle size distributions from cloud cores under different forcing. Results demonstrate the active role of background dust and pollution as cloud condensation nuclei (CCN) with the onset of their deliquescence in the subcloud region. Subcloud aerosol sizes are shown to extend from submicron to 100 μ sizes, with higher concentrations of ultra-giant CCN (d> 10 μm) from local sources closer to the Saudi border, compared with the eastern orographic region where smaller CCN are observed. Despite the presence of ultra-giant CCN from dust and pollution in both regions, an active collision-coalescence (C-C) process is not observed within the limited depths of warm cloud (<1000 m). The state-of-the-art observations presented in this paper can be used to initialize modeling case studies to examine the influence of aerosols on cloud and precipitation processes in the region and to better understand the impacts of hygroscopic cloud seeding on these clouds. © Authors 2021
语种	英语
scopus关键词	aerosol; airborne survey; cloud condensation nucleus; cloud microphysics; particle size; precipitation (climatology); size distribution; Oman; United Arab Emirates
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/246636
作者单位	National Center of Meteorology, Abu Dhabi, 4815, United Arab Emirates; Research Applications Laboratory, National Center for Atmospheric Research, Boulder, CO 80307, United States; Stratton Park Engineering Company, Boulder, CO 80301, United States; Department of Civil, Environmental and Ocean Engineering, Stevens Institute of Technology, Hoboken, NJ 07030, United States
推荐引用方式 GB/T 7714	Wehbe Y.,Tessendorf S.A.,Weeks C.,et al. Analysis of aerosol-cloud interactions and their implications for precipitation formation using aircraft observations over the United Arab Emirates[J],2021,21(16).
APA	Wehbe Y..,Tessendorf S.A..,Weeks C..,Bruintjes R..,Xue L..,...&Temimi M..(2021).Analysis of aerosol-cloud interactions and their implications for precipitation formation using aircraft observations over the United Arab Emirates.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(16).
MLA	Wehbe Y.,et al."Analysis of aerosol-cloud interactions and their implications for precipitation formation using aircraft observations over the United Arab Emirates".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.16(2021).