气候变化领域集成服务门户(CCPortal): Analyzing the Synoptic-, Meso- and Local- Scale Involved in Sea Breeze Formation and Frontal Characteristics

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DOI	10.1029/2019JD031302
	Analyzing the Synoptic-, Meso- and Local- Scale Involved in Sea Breeze Formation and Frontal Characteristics
	Arrillaga J.A.; Jiménez P.; Vilà-Guerau de Arellano J.; Jiménez M.A.; Román-Cascón C.; Sastre M.; Yagüe C.
发表日期	2020
ISSN	2169897X
卷号	125 期号:4
英文摘要	Sea breeze (SB) frontal passages, the relevant factors influencing their formation and their interaction with local turbulence, are analyzed. To proceed, numerical simulations from the Weather Research and Forecasting (WRF) model are compared with a comprehensive observational database from the Cabauw Experimental Site for Atmospheric Research site, spanning a 10-year period (January 2001 to December 2010). The fine horizontal resolution of 2 km and the replication of the observational vertical levels allow for a more precise comparison. An algorithm based on objective and strict criteria was applied to both observations and simulations to select the SB events. By carrying out a filter-by-filter comparison, we find that the simulated large-scale conditions show a good rate of coincidence with the reanalysis (69%). Small biases in the large-scale wind direction, however, induce important deviations in the surface-wind evolution. Regarding mesoscale forcings, the land-sea temperature gradient is overestimated in average up to 4 K, producing stronger SB fronts in WRF. The analysis of the SB characteristics and impacts is carried out by classifying the events into three boundary-layer regimes (convective, transition, and stable) based on the value of the sensible-heat flux at the SB onset. The stronger SB in the model leads to enhanced turbulence particularly in the convective and transition regimes: The friction velocity, for instance, is overstated by around 50% at the SB onset. In addition, the arrival of the SB front enhances the stable stratification and gives rise to faster afternoon and evening transitions compared with situations solely driven by local atmospheric turbulence. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	boundary-layer dynamics; coastal meteorology; mesoscale; synoptic scale; turbulent transition; WRF modeling
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/186156
作者单位	Departamento Física de la Tierra y Astrofísica, Universidad Complutense de Madrid, Madrid, Spain; Research Applications Laboratory, National Center for Atmospheric Research, Boulder, CO, United States; Meteorology and Air Quality Group, Wageningen University, Wageningen, Netherlands; Departamento de Física, Universitat de les Illes Balears, Palma, Spain; Laboratoire d'Aérologie, CNRS, Université de Toulouse, UPS, Toulouse, France; Centre National d'Études Spatiales (CNES), Toulouse, France
推荐引用方式 GB/T 7714	Arrillaga J.A.,Jiménez P.,Vilà-Guerau de Arellano J.,et al. Analyzing the Synoptic-, Meso- and Local- Scale Involved in Sea Breeze Formation and Frontal Characteristics[J],2020,125(4).
APA	Arrillaga J.A..,Jiménez P..,Vilà-Guerau de Arellano J..,Jiménez M.A..,Román-Cascón C..,...&Yagüe C..(2020).Analyzing the Synoptic-, Meso- and Local- Scale Involved in Sea Breeze Formation and Frontal Characteristics.Journal of Geophysical Research: Atmospheres,125(4).
MLA	Arrillaga J.A.,et al."Analyzing the Synoptic-, Meso- and Local- Scale Involved in Sea Breeze Formation and Frontal Characteristics".Journal of Geophysical Research: Atmospheres 125.4(2020).