Arid
DOI10.1007/s00704-016-2014-4
The different influence of the residual layer on the development of the summer convective boundary layer in two deserts in northwest China
Zhao Lin1; Han Bo1; Lv Shihua1,2; Wen Lijuan1; Meng Xianhong1; Li Zhaoguo1
通讯作者Han Bo
来源期刊THEORETICAL AND APPLIED CLIMATOLOGY
ISSN0177-798X
EISSN1434-4483
出版年2018
卷号131期号:3-4页码:877-888
英文摘要

The development of the atmospheric boundary layer is closely connected with the exchange of momentum, heat, and mass near the Earth’s surface, especially for a convective boundary layer (CBL). Besides being modulated by the buoyancy flux near the Earth’s surface, some studies point out that a neutrally stratified residual layer is also crucial for the appearance of a deep CBL. To verify the importance of the residual layer, the CBLs over two deserts in northwest China (Badan Jaran and Taklimakan) were investigated. The summer CBL mean depth over the Taklimakan Desert is shallower than that over the Badan Jaran Desert, even when the sensible heat flux of the former is stronger. Meanwhile, the climatological mean residual layer in the Badan Jaran Desert is much deeper and neutrally stratified in summer. Moreover, we found a significant and negative correlation between the lapse rate of the residual layer and the CBL depth over the Badan Jaran Desert. The different lapse rates of the residual layer in the two regions are partly connected with the advection heating from large-scale atmospheric circulation. The advection heating tends to reduce the temperature difference in the 700 to 500-hPa layer over the Badan Jaran Desert, and it increases the stability in the same atmospheric layer over the Taklimakan Desert. The advection due to climatological mean atmospheric circulation is more effective at modulating the lapse rate of the residual layer than from varied circulation. Also, the interannual variation of planetary boundary layer (PBL) height over two deserts was found to covary with the wave train.


英文关键词Residual layer Surface sensible heat flux Badan Jaran Desert Taklimakan Desert Advection heating
类型Article
语种英语
国家Peoples R China
收录类别SCI-E
WOS记录号WOS:000423574800003
WOS关键词LAND-SURFACE ; SCALE ; PRECIPITATION ; EVOLUTION ; SIMULATIONS ; IMPACT ; SHEAR
WOS类目Meteorology & Atmospheric Sciences
WOS研究方向Meteorology & Atmospheric Sciences
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/213442
作者单位1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Land Surface Proc & Climate Change Cold &, Lanzhou 730000, Gansu, Peoples R China;
2.Chengdu Univ Informat Technol, Sch Atmospher Sci, Chengdu 610225, Sichuan, Peoples R China
推荐引用方式
GB/T 7714
Zhao Lin,Han Bo,Lv Shihua,et al. The different influence of the residual layer on the development of the summer convective boundary layer in two deserts in northwest China[J],2018,131(3-4):877-888.
APA Zhao Lin,Han Bo,Lv Shihua,Wen Lijuan,Meng Xianhong,&Li Zhaoguo.(2018).The different influence of the residual layer on the development of the summer convective boundary layer in two deserts in northwest China.THEORETICAL AND APPLIED CLIMATOLOGY,131(3-4),877-888.
MLA Zhao Lin,et al."The different influence of the residual layer on the development of the summer convective boundary layer in two deserts in northwest China".THEORETICAL AND APPLIED CLIMATOLOGY 131.3-4(2018):877-888.
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