气候变化领域集成服务门户(CCPortal): Oscillations in deep-open-cells during winter Mediterranean cyclones

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DOI	10.1038/s41612-021-00168-9
	Oscillations in deep-open-cells during winter Mediterranean cyclones
	Liu H.; Koren I.; Altaratz O.; Heiblum R.H.; Khain P.; Ouyang X.; Guo J.
发表日期	2021
ISSN	23973722
卷号	4 期号:1
英文摘要	Open cloud cells can be described in ideal form as connected clouds that surround spots of isolated clear skies in their centers. This cloud pattern is typically associated with marine stratocumulus (MSc) that form in the oceanic boundary layer. However, it can form in deeper convective clouds as well. Here, we focus on deep-open-cells (with tops reaching up to ~5–7 km) that form in the post-frontal regions of winter Mediterranean cyclones, and examine their properties and evolution. Using a Lagrangian analysis of satellite data, we show that deep-open-cells have a larger equivalent diameter (~58 ± 18 km) and oscillate with a longer periodicity (~3.5 ± 1 h) compared to shallow MSc. A numerical simulation of one Cyprus low event reveals that precipitation-generated convergence and divergence dynamic patterns are the main driver of the open cells’ organization and oscillations. Thus, our findings generalize the mechanism attributed to the behavior of shallow marine cells to deeper convective systems. © 2021, The Author(s).
语种	英语
scopus关键词	atmospheric convection; cloud cover; cloud microphysics; oscillation; satellite data; satellite imagery; stratocumulus; tropical cyclone
来源期刊	npj Climate and Atmospheric Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/178000
作者单位	Department of Earth and Planetary Sciences, Weizmann Institute of Science, Rehovot, Israel; State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing, China; Research and Development Department, the Israeli Meteorological Service, Beit Dagan, Israel; Department of Atmospheric Physics, Nanjing University of Information Science and Technology, Nanjing, China
推荐引用方式 GB/T 7714	Liu H.,Koren I.,Altaratz O.,et al. Oscillations in deep-open-cells during winter Mediterranean cyclones[J],2021,4(1).
APA	Liu H..,Koren I..,Altaratz O..,Heiblum R.H..,Khain P..,...&Guo J..(2021).Oscillations in deep-open-cells during winter Mediterranean cyclones.npj Climate and Atmospheric Science,4(1).
MLA	Liu H.,et al."Oscillations in deep-open-cells during winter Mediterranean cyclones".npj Climate and Atmospheric Science 4.1(2021).