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DOI	10.1002/joc.7420
	Spatial and temporal patterns of planetary boundary layer height during 1979-2018 over the Tibetan Plateau using ERA5
	Slaettberg, Nils; Lai, Hui-Wen; Chen, Xuelong; Ma, Yaoming; Chen, Deliang
通讯作者	Lai, HW ; Chen, DL (通讯作者)
发表日期	2022
ISSN	0899-8418
EISSN	1097-0088
起始页码	3360
结束页码	3377
卷号	42 期号:6
英文摘要	Planetary boundary layer height (PBLH) is a key meteorological parameter that is affected by and influences exchanges of energy, momentum, and mass between the surface and the atmosphere, but there are few comprehensive studies on the PBLH climatology over the Tibetan Plateau (TP). This study presents a multi-decadal climatology of PBLH over the TP by using high-resolution reanalysis data (ERA5) for the period 1979-2018. The ERA5 PBLH was first evaluated against radiosonde-derived PBLH from four sites. For most of the observation periods and sites, ERA5 captured the diurnal cycles reasonably well, although the highest peaks in the radiosonde-derived PBLH were often not captured. Next, long-term means and trends, seasonality and diurnal cycles of the PBLHs were examined. The results show that average PBLHs in the central and southwestern TP are higher than those in the west and east. On an interannual time scale, the PBLH is positively correlated with the North Atlantic Oscillation in western and southeastern TP in winter, eastern TP in summer, and central TP in autumn, while a negative correlation is seen for northeastern TP in winter. The summertime PBLH in the central and southwestern TP is negatively correlated to the Indian summer monsoon. As for the seasonal cycle, the PBLH in the western TP reaches its peak in August, while the PBLH in the eastern TP exhibits an earlier summer peak in June. In the central TP, the PBLH is the highest in April and displays a minimum during summer, corresponding to a precipitation peak and a dip in surface sensible heat flux. The climatological diurnal cycles of PBLH are generally affected by the insolation and reach their peaks in the afternoon when a large range in PBLH variation is also found.
关键词	SUMMER PRECIPITATION LAND-SURFACE SNOW COVER IN-SITU MONSOON DEPTH EAST CLIMATOLOGY TRENDS NAO
英文关键词	ERA5; planetary boundary layer height; radiosonde; Tibetan Plateau
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000715481200001
来源期刊	INTERNATIONAL JOURNAL OF CLIMATOLOGY
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/260612
推荐引用方式 GB/T 7714	Slaettberg, Nils,Lai, Hui-Wen,Chen, Xuelong,et al. Spatial and temporal patterns of planetary boundary layer height during 1979-2018 over the Tibetan Plateau using ERA5[J]. 中国科学院青藏高原研究所,2022,42(6).
APA	Slaettberg, Nils,Lai, Hui-Wen,Chen, Xuelong,Ma, Yaoming,&Chen, Deliang.(2022).Spatial and temporal patterns of planetary boundary layer height during 1979-2018 over the Tibetan Plateau using ERA5.INTERNATIONAL JOURNAL OF CLIMATOLOGY,42(6).
MLA	Slaettberg, Nils,et al."Spatial and temporal patterns of planetary boundary layer height during 1979-2018 over the Tibetan Plateau using ERA5".INTERNATIONAL JOURNAL OF CLIMATOLOGY 42.6(2022).