Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2017JD028079 |
In Situ Measurements of Surface Winds, Waves, and Sea State in Polar Lows Over the North Atlantic | |
Rojo, M.1,2; Claud, C.3; Noer, G.4; Carleton, A. M.5,6 | |
2019-01-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2019 |
卷号 | 124期号:2页码:700-718 |
文章类型 | Article |
语种 | 英语 |
国家 | France; Norway; USA |
英文摘要 | Polar low (PL) storms are an important feature of the wintertime subsynoptic-scale atmospheric circulation of middle- and higher-latitude ocean areas. They can generate hazardous conditions impacting coastal and marine activities like fishing, transport, and oil extraction. However, there are few studies available of individual PL systems based on high-resolution maritime surface data. Accordingly, the meteorological impacts of 29 PLs have been investigated for the 14 winters 1999-2013, using in situ measurements at eight stations in the Norwegian and North Seas. On average, the highest wind speed and significant wave height (SWH) occur following the minimum in sea level pressure of the PL, respectively, 1 and 3hr after its passage. The strongest wind speed averages 17.1m/s, and the highest peak SWH is 6.3m, but these can reach 31m/s and 11m, respectively. PL characteristics of system horizontal extent, propagation speed, and the larger-scale atmospheric circulation environment explain the large intercase differences. Large, multiple, and fast-moving PLs within a meridional circulation environment appear to generate stronger near-surface winds and higher waves than do small, single, and slow-moving PLs within a zonal circulation. Multiple systems may have the largest impacts (e.g., SWH>8m), although a larger sample size is required to confirm this possibility. The impacts of PLs on sea surface temperature (SST) are quite small and are difficult to interpret separate from the background SST variation. The observed SST decrease may be mainly caused by the cold air outbreak within which the PL is embedded; indeed, a positive SST minus air temperature anomaly is found during the 24hr preceding the passage of PL vortices, indicating enhanced low-level atmospheric instability. |
英文关键词 | polar low mesocyclone track Norwegian Sea North Sea multiple system in-situ measurement |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000458845300015 |
WOS关键词 | SATELLITE-OBSERVATIONS ; NORDIC SEAS ; CYCLONES ; REGIMES |
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/33362 |
专题 | 气候变化 |
作者单位 | 1.Observ Versailles St Quentin, Cultures, Environm, Arctique,Representat,Climats, Guyancourt, France; 2.CNRS, Lab Atmospheres, Milieux, Observat Spatiales, Guyancourt, France; 3.UPMC Univ Paris 06, Sorbonne Univ, PSL Res Univ,ENS, LMD,IPSL,CNRS,UMR 8539,Ecole Polytech,Univ Paris, Palaiseau, France; 4.Norwegian Meteorol Inst, Oslo, Norway; 5.Penn State Univ, Dept Geog, University Pk, PA 16802 USA; 6.Penn State Univ, Polar Ctr, University Pk, PA 16802 USA |
推荐引用方式 GB/T 7714 | Rojo, M.,Claud, C.,Noer, G.,et al. In Situ Measurements of Surface Winds, Waves, and Sea State in Polar Lows Over the North Atlantic[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2019,124(2):700-718. |
APA | Rojo, M.,Claud, C.,Noer, G.,&Carleton, A. M..(2019).In Situ Measurements of Surface Winds, Waves, and Sea State in Polar Lows Over the North Atlantic.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,124(2),700-718. |
MLA | Rojo, M.,et al."In Situ Measurements of Surface Winds, Waves, and Sea State in Polar Lows Over the North Atlantic".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 124.2(2019):700-718. |
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