Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/joc.5467 |
Cold-air pool evolution in a wide Pyrenean valley | |
Conangla, Laura1; Cuxart, Joan2; Antonia Jimenez, Maria2; Martinez-Villagrasa, Daniel2; Ramon Miro, Josep3; Tabarelli, Davide4; Zardi, Dino4 | |
2018-05-01 | |
发表期刊 | INTERNATIONAL JOURNAL OF CLIMATOLOGY |
ISSN | 0899-8418 |
EISSN | 1097-0088 |
出版年 | 2018 |
卷号 | 38期号:6页码:2852-2865 |
文章类型 | Article |
语种 | 英语 |
国家 | Spain; Italy |
英文摘要 | This study on cold-air pool formation in the wide Cerdanya Valley in the Pyrenees mountain range was conducted using available observational information from September 2010 to August 2014. Cold-air pools occur during almost 60% of the nights, mainly during winter. Cold pools develop even under significant synoptic pressure gradients. Additionally, drainage currents transporting air down-valley occur most of the nights. In particular one representative cold-air pool event has been analysed in detail by a high-resolution mesoscale simulation, combined with an analysis of data from both ground-based stations and satellites. Radiative processes dominate the evolution of cold-air pools, together with turbulence in the lowest layers, while drainage flows down from the high mountains mainly through the tributary valleys and from the valley sidewall slopes play a key role in bringing air to the pool. Cold pool formation begins approximately 1 hr after sunset, and it extends across most of the valley bottom, with a very strong thermal inversion close to the surface that has a depth of up to 100m in the lowest parts of the valley. Wind veers down-valley along the main axis 2-3 hr after sunset and the wind direction is approximately maintained until after sunrise. |
英文关键词 | cold-air pool drainage flow mesoscale simulation Pyrenean wide valley stable boundary layer turbulence |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000437834500017 |
WOS关键词 | DRAINAGE FLOWS ; BOUNDARY-LAYER ; BASIN ; TEMPERATURE ; SYSTEM ; WEATHER ; SIMULATIONS ; PATTERNS |
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/37152 |
专题 | 气候变化 |
作者单位 | 1.Univ Politecn Cataluna, Dept Min Ind & ICT Engn, Avinguda Bases Manresa 61-73, Manresa 08242, Spain; 2.Univ Balearic Isl, Dept Phys, Palma De Mallorca, Spain; 3.Serv Meteorol Catalunya, Barcelona, Spain; 4.Univ Trento, Dept Civil Environm & Mech Engn, Atmospher Phys Grp, Trento, Italy |
推荐引用方式 GB/T 7714 | Conangla, Laura,Cuxart, Joan,Antonia Jimenez, Maria,et al. Cold-air pool evolution in a wide Pyrenean valley[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2018,38(6):2852-2865. |
APA | Conangla, Laura.,Cuxart, Joan.,Antonia Jimenez, Maria.,Martinez-Villagrasa, Daniel.,Ramon Miro, Josep.,...&Zardi, Dino.(2018).Cold-air pool evolution in a wide Pyrenean valley.INTERNATIONAL JOURNAL OF CLIMATOLOGY,38(6),2852-2865. |
MLA | Conangla, Laura,et al."Cold-air pool evolution in a wide Pyrenean valley".INTERNATIONAL JOURNAL OF CLIMATOLOGY 38.6(2018):2852-2865. |
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