Low-Level Jets Over the Bohai Sea and Yellow Sea: Climatology, Variability, and the Relationship With Regional Atmospheric Circulations

doi:10.1029/2017JD027949

	Low-Level Jets Over the Bohai Sea and Yellow Sea: Climatology, Variability, and the Relationship With Regional Atmospheric Circulations
	Li, Delei 1,2; von Storch, Hans 3,4,5; Yin, Baoshu 1,2,6; Xu, Zhenhua 1,2; Qi, Jifeng 1,2; Wei, Wei 7; Guo, Donglin 8
刊名	JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
	2018-05-27
卷号	123 期号:10 页码:5240-5260
关键词	low-level jet Bohai Sea and Yellow Sea climatology regional climate modeling COSMO-CLM
ISSN号	2169-897X
DOI	10.1029/2017JD027949
英文摘要	The present study reveals climate features of low-level jets (LLJs) over the Bohai Sea and Yellow Sea (BYS) based on a 35-year (1979-2013) high-resolution (7km) atmospheric hindcast. The regional climate model COSMO-CLM driven by the ERA-Interim reanalysis data set was used to obtain the hindcast. Through comparison with observations, the hindcast was proved to robustly reproduce the climatology, the diurnal cycle, the variability of wind profiles, and specific LLJ cases. LLJs over the BYS feature a strong diurnal cycle, intra-annual, and interannual variability but weak decadal variability. LLJs are more frequent in April, May, and June (LLJ season) and less frequent in winter over the Bohai Sea and western coastal areas of the Yellow Sea, which is due to the intra-annual variations of large-scale circulation and local land-sea thermal contrast. In the LLJ season, the heights of jet cores are generally lower than 500m above sea level. The maximum wind speed of LLJs is mostly in the range of 10-16m/s, and prevailing wind directions are southerly and southwesterly. The LLJs are of the nocturnal type, with the highest occurrence frequency at approximately 2300 local time. Furthermore, a low-frequency link between anomalies of LLJ occurrence and regional large-scale barotropic circulation was identified using canonical correlation analysis and associated correlation patterns. Pressure systems over the East Asia-northwest Pacific region are significantly correlated with the variations of LLJ occurrence over the BYS in terms of the intra-annual and interannual variability.
资助项目	Strategic Pioneering Research Program of CAS[XDA11020104] ; Strategic Pioneering Research Program of CAS[XDA11020101]
WOS研究方向	Meteorology & Atmospheric Sciences
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000435445600028
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/10847]
专题	自然资源部第一海洋研究所
通讯作者	Xu, Zhenhua
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Funct Lab Ocean Dynam & Climate, Qingdao, Peoples R China 3.Helmholtz Zentrum Geesthacht, Inst Coastal Res, Geesthacht, Germany 4.Univ Hamburg, CliSAP, Hamburg, Germany 5.Ocean Univ China, Coll Ocean & Atmospher Sci, Qingdao, Peoples R China 6.Univ Chinese Acad Sci, Beijing, Peoples R China 7.Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing, Peoples R China 8.North China Sea Marine Forecasting Ctr, State Ocean Adm, Qingdao, Peoples R China
推荐引用方式 GB/T 7714	Li, Delei,von Storch, Hans,Yin, Baoshu,et al. Low-Level Jets Over the Bohai Sea and Yellow Sea: Climatology, Variability, and the Relationship With Regional Atmospheric Circulations[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2018,123(10):5240-5260.
APA	Li, Delei.,von Storch, Hans.,Yin, Baoshu.,Xu, Zhenhua.,Qi, Jifeng.,...&Guo, Donglin.(2018).Low-Level Jets Over the Bohai Sea and Yellow Sea: Climatology, Variability, and the Relationship With Regional Atmospheric Circulations.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,123(10),5240-5260.
MLA	Li, Delei,et al."Low-Level Jets Over the Bohai Sea and Yellow Sea: Climatology, Variability, and the Relationship With Regional Atmospheric Circulations".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 123.10(2018):5240-5260.