气候变化领域集成服务门户(CCPortal): Analysis of local land-atmosphere coupling in rainy season over a typical underlying surface in Tibetan Plateau based on field measurements and ERA5

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DOI	10.1016/j.atmosres.2020.105025
	Analysis of local land-atmosphere coupling in rainy season over a typical underlying surface in Tibetan Plateau based on field measurements and ERA5
	Sun, Genhou; Hu, Zeyong; Ma, Yaoming; Xie, Zhipeng; Yang, Song; Wang, Jieming
通讯作者	Sun, GH (通讯作者)
发表日期	2020
ISSN	0169-8095
EISSN	1873-2895
卷号	243
英文摘要	This study investigates the local land-atmosphere coupling (LoCo) in the rainy season by applying a mixing diagram method to the field measurements and ERA5 data over a typical underlying surface in Tibetan Plateau (TP). Comparison of frequencies of meteorological variables in June, July, August, and September (JJAS) in 2011 in the two datasets suggests that the ranges of meteorological variables are similar although the ERAS shows a cold and wet bias. The mixing diagram analysis on 12 July, and 7-8 August 2011 calculated based on the two datasets reveals that the ERAS could provide similar curves of the mixing diagram in the sunny days, although it tends to overestimate surface sensible and latent heat fluxes (H-sfc, LEsfc), and entrainment sensible heat fluxes (H-ens), underestimate entrainment latent heat fluxes (LEent) in sunny days. The mixing diagram analysis under four different weather conditions based on ERA5 shows that LoCo behaves differently under different weather conditions and that as cloud amount increases, less heat and more water vapor are transported into the PBL from the land surface. Study of the monthly mean mixing diagram in JJAS from 2011 to 2014 based on the two datasets indicates the curves of the monthly-mean Cp0 and Lvq and PBL energy budgets exhibit a monthly variation, which relates to Southern Asian monsoon (ASM). Discussion of the relationship between mean H-sfc and max PBLH in the daytime reveals that the role of Hs& in PBL growth at the daily scale is weakest in July due to the impact of ASM.
关键词	BOUNDARY LAYER INTERACTIONS HEAT FLUXES PART II ENERGY FRAMEWORK
英文关键词	Local land-atmosphere coupling; Mixing diagram; Tibetan Plateau; Field measurements; ERA5
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000539111800020
来源期刊	ATMOSPHERIC RESEARCH
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/259801
推荐引用方式 GB/T 7714	Sun, Genhou,Hu, Zeyong,Ma, Yaoming,et al. Analysis of local land-atmosphere coupling in rainy season over a typical underlying surface in Tibetan Plateau based on field measurements and ERA5[J]. 中国科学院青藏高原研究所,2020,243.
APA	Sun, Genhou,Hu, Zeyong,Ma, Yaoming,Xie, Zhipeng,Yang, Song,&Wang, Jieming.(2020).Analysis of local land-atmosphere coupling in rainy season over a typical underlying surface in Tibetan Plateau based on field measurements and ERA5.ATMOSPHERIC RESEARCH,243.
MLA	Sun, Genhou,et al."Analysis of local land-atmosphere coupling in rainy season over a typical underlying surface in Tibetan Plateau based on field measurements and ERA5".ATMOSPHERIC RESEARCH 243(2020).