气候变化领域集成服务门户(CCPortal): Heterogeneous Nucleation of Midlevel Cloud Layer Influenced by Transported Asian Dust Over Wuhan (30.5°N, 114.4°E), China

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DOI	10.1029/2020JD033394
	Heterogeneous Nucleation of Midlevel Cloud Layer Influenced by Transported Asian Dust Over Wuhan (30.5°N, 114.4°E), China
	He Y.; Yi F.; Yi Y.; Liu F.; Zhang Y.
发表日期	2021
ISSN	2169897X
卷号	126 期号:2
英文摘要	Midlevel cloud layers (2–7 km) pertinent to transported Asian dust layers were observed on 26 occasions from the polarization lidar measurements during the period from December 2012 to December 2013 over Wuhan (30.5°N, 114.4°E), China. The events mainly occurred in winter. Cloud layers were mostly detected (19 out of 26) on top of the aloft Asian dust layers. The boundary between cloud layer and dust layer appeared at altitudes of 4–7 km. The observed events are classified into three categories: (1) category A (6 cases), supercooled liquid cloud layers persistently existed without an evident sign of freezing; (2) category B (9 cases), supercooled liquid cloud appeared initially and then ice crystals formed on the boundary between the cloud layer and dust layer; (3) category C (11 cases), only a cloud containing ice crystals was present throughout while the pure liquid stage did not present previously, indicating that deposition nucleation might take place. Cloud top temperatures (CTTs) for heterogeneous ice formation ranged from −38.5°C to −18.3°C; no ice formation occurred with CTT warmer than −15°C. After thousands of kilometers transport, ice nucleation efficiency of Asian dust over Wuhan substantially did not present a distinct change compared with that of pure dust. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	Asian dust; glaciation process; heterogeneous nucleation; ice formation; mixed-phase cloud; polarization lidar
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/185527
作者单位	School of Electronic Information, Wuhan University, Wuhan, China; Key Laboratory of Geospace Environment and Geodesy, Ministry of Education, Wuhan, China; State Observatory for Atmospheric Remote Sensing, Wuhan, China
推荐引用方式 GB/T 7714	He Y.,Yi F.,Yi Y.,et al. Heterogeneous Nucleation of Midlevel Cloud Layer Influenced by Transported Asian Dust Over Wuhan (30.5°N, 114.4°E), China[J],2021,126(2).
APA	He Y.,Yi F.,Yi Y.,Liu F.,&Zhang Y..(2021).Heterogeneous Nucleation of Midlevel Cloud Layer Influenced by Transported Asian Dust Over Wuhan (30.5°N, 114.4°E), China.Journal of Geophysical Research: Atmospheres,126(2).
MLA	He Y.,et al."Heterogeneous Nucleation of Midlevel Cloud Layer Influenced by Transported Asian Dust Over Wuhan (30.5°N, 114.4°E), China".Journal of Geophysical Research: Atmospheres 126.2(2021).