Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1038/s41467-019-14074-5 |
Midwinter Arctic leads form and dissipate low clouds | |
Li, Xia; Krueger, Steven K.; Strong, Courtenay; Mace, Gerald G.; Benson, Sally | |
2020-01-10 | |
发表期刊 | NATURE COMMUNICATIONS
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ISSN | 2041-1723 |
出版年 | 2020 |
卷号 | 11期号:1 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Leads are a key feature of the Arctic ice pack during the winter owing to their substantial contribution to the surface energy balance. According to the present understanding, enhanced heat and moisture fluxes from high lead concentrations tend to produce more boundary layer clouds. However, described here in our composite analyses of diverse surface- and satellite-based observations, we find that abundant boundary layer clouds are associated with low lead flux periods, while fewer boundary layer clouds are observed for high lead flux periods. Motivated by these counterintuitive results, we conducted three-dimensional cloud-resolving simulations to investigate the underlying physics. We find that newly frozen leads with large sensible heat flux but low latent heat flux tend to dissipate low clouds. This finding indicates that the observed high lead fractions likely consist of mostly newly frozen leads that reduce any pre-existing low-level cloudiness, which in turn decreases downwelling infrared flux and accelerates the freezing of sea ice. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000551459800002 |
WOS关键词 | SEA-ICE ; ATMOSPHERIC RADIATION ; HEAT-TRANSFER ; SIMULATIONS ; SCALE ; PROGRAM ; HEIGHT ; OCEAN |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
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/249930 |
专题 | 资源环境科学 |
作者单位 | Univ Utah, Dept Atmospher Sci, 135 S 1460 E, Salt Lake City, UT 84112 USA |
推荐引用方式 GB/T 7714 | Li, Xia,Krueger, Steven K.,Strong, Courtenay,et al. Midwinter Arctic leads form and dissipate low clouds[J]. NATURE COMMUNICATIONS,2020,11(1). |
APA | Li, Xia,Krueger, Steven K.,Strong, Courtenay,Mace, Gerald G.,&Benson, Sally.(2020).Midwinter Arctic leads form and dissipate low clouds.NATURE COMMUNICATIONS,11(1). |
MLA | Li, Xia,et al."Midwinter Arctic leads form and dissipate low clouds".NATURE COMMUNICATIONS 11.1(2020). |
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