Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2016JD025960 |
The marine atmospheric boundary layer under strong wind conditions: Organized turbulence structure and flux estimates by airborne measurements | |
Brilouet, Pierre-Etienne1,2; Durand, Pierre1; Canut, Guylaine2 | |
2017-02-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2017 |
卷号 | 122期号:4 |
文章类型 | Article |
语种 | 英语 |
国家 | France |
英文摘要 | During winter, cold air outbreaks take place in the northwestern Mediterranean sea. They are characterized by local strong winds (Mistral and Tramontane) which transport cold and dry continental air across a warmer sea. In such conditions, high values of surface sensible and latent heat flux are observed, which favor deep oceanic convection. The HyMeX/ASICS-MED field campaign was devoted to the study of these processes. Airborne measurements, gathered in the Gulf of Lion during the winter of 2013, allowed for the exploration of the mean and turbulent structure of the marine atmospheric boundary layer (MABL). A spectral analysis based on an analytical model was conducted on 181 straight and level runs. Profiles of characteristic length scales and sharpness parameter of the vertical wind spectrum revealed larger eddies along the mean wind direction associated with an organization of the turbulence field into longitudinal rolls. These were highlighted by boundary layer cloud bands on high-resolution satellite images. A one-dimensional description of the vertical exchanges is then a tricky issue. Since the knowledge of the flux profile throughout the entire MABL is essential for the estimation of air-sea exchanges, a correction of eddy covariance turbulent fluxes was developed taking into account the systematic and random errors due to sampling and data processing. This allowed the improvement of surface fluxes estimates, computed from the extrapolation of the stacked levels. A comparison between those surface fluxes and bulk fluxes computed at a moored buoy revealed considerable differences, mainly regarding the latent heat flux under strong wind conditions. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000396121200004 |
WOS关键词 | AIR-SEA INTERACTION ; DENSE WATER FORMATION ; VERTICAL STRUCTURE ; ROLL VORTICES ; LENGTH-SCALES ; SEMAPHORE ; MESOSCALE ; AIRCRAFT ; OUTBREAK |
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/34022 |
专题 | 气候变化 |
作者单位 | 1.Univ Toulouse, CNRS, UPS, Lab Aerol, Toulouse, France; 2.Meteo France CNRS, CNRM UMR, Toulouse, France |
推荐引用方式 GB/T 7714 | Brilouet, Pierre-Etienne,Durand, Pierre,Canut, Guylaine. The marine atmospheric boundary layer under strong wind conditions: Organized turbulence structure and flux estimates by airborne measurements[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017,122(4). |
APA | Brilouet, Pierre-Etienne,Durand, Pierre,&Canut, Guylaine.(2017).The marine atmospheric boundary layer under strong wind conditions: Organized turbulence structure and flux estimates by airborne measurements.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,122(4). |
MLA | Brilouet, Pierre-Etienne,et al."The marine atmospheric boundary layer under strong wind conditions: Organized turbulence structure and flux estimates by airborne measurements".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 122.4(2017). |
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