Optical Turbulence Characteristics in the Upper Troposphere-Lower Stratosphere over the Lhasa within the Asian Summer Monsoon Anticyclone

doi:10.3390/rs14164104

HFCAS OpenIR

	Optical Turbulence Characteristics in the Upper Troposphere-Lower Stratosphere over the Lhasa within the Asian Summer Monsoon Anticyclone
	Zhang, Kun 1,2; Wang, Feifei 1,2; Weng, Ningquan1,2 ; Wu, Xiaoqing1,2 ; Li, Xuebin1,2 ; Luo, Tao 1,2
	2022-08-01
发表期刊	REMOTE SENSING
通讯作者	Luo, Tao(luotao@aiofm.ac.cn)
摘要	The high elevation, complex topography, and unique atmospheric circulations of the Tibetan Plateau (TP) make its optical turbulence characteristics different from those in low-elevation regions. In this study, the characteristics of the atmospheric refractive index structure constant (C-n(2)) profiles in the Lhasa area at different strength states of the Asian summer monsoon anticyclone (ASMA) are analyzed based on precious in situ sounding data measured over the Lhasa in August 2018. C-n(2) in the upper troposphere-lower stratosphere fluctuates significantly within a few days during the ASMA, particularly in the upper troposphere. The effect of the ASMA on C-n(2) varies among the upper troposphere, tropopause, and lower stratosphere. The stronger and closer the ASMA is to Lhasa, the more pronounced is the "upper highs and lower lows" pressure field structure, which is beneficial for decreasing the potential temperature lapse rate. The decrease in static stability is an important condition for developing optical turbulence, elevating the tropopause height, and reducing the tropopause temperature. However, if strong high-pressure activity occurs at the lower pressure layer, such as at 500 hPa, an "upper highs and lower highs" pressure field structure forms over the Lhasa, increasing the potential temperature lapse rate and suppressing the convective intensity. Being almost unaffected by low-level atmospheric high-pressure activities, the ASMA, as the main influencing factor, mainly inhibits C-n(2) in the tropopause and lower stratosphere. The variations of turbulence intensity in UTLS caused by ASMA activities also have a great influence on astronomical parameters, which will have certain guiding significance for astronomical site testing and observations.
关键词	Tibetan Plateau optical turbulence Asian summer monsoon anticyclone upper troposphere-lower stratosphere
DOI	10.3390/rs14164104
关键词[WOS]	TIBETAN PLATEAU ; BOUNDARY-LAYER ; PARAMETERIZATION ; SIMULATIONS ; ATMOSPHERE ; TRANSPORT ; CO
收录类别	SCI
语种	英语
资助项目	Strategic Priority Research Program of Chinese Academy of Sciences[XDA17010104] ; National Natural Science Foundation of China[4157685] ; National Natural Science Foundation of China[91752103]
项目资助者	Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS记录号	WOS:000846581200001
出版者	MDPI
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/131841
专题	中国科学院合肥物质科学研究院
通讯作者	Luo, Tao
作者单位	1.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Hefei Inst Phys Sci, Key Lab Atmospher Opt, Hefei 230031, Peoples R China 2.Adv Laser Technol Lab Anhui Prov, Hefei 230037, Peoples R China
第一作者单位	中科院安徽光学精密机械研究所
通讯作者单位	中科院安徽光学精密机械研究所
推荐引用方式 GB/T 7714	Zhang, Kun,Wang, Feifei,Weng, Ningquan,et al. Optical Turbulence Characteristics in the Upper Troposphere-Lower Stratosphere over the Lhasa within the Asian Summer Monsoon Anticyclone[J]. REMOTE SENSING,2022,14.
APA	Zhang, Kun,Wang, Feifei,Weng, Ningquan,Wu, Xiaoqing,Li, Xuebin,&Luo, Tao.(2022).Optical Turbulence Characteristics in the Upper Troposphere-Lower Stratosphere over the Lhasa within the Asian Summer Monsoon Anticyclone.REMOTE SENSING,14.
MLA	Zhang, Kun,et al."Optical Turbulence Characteristics in the Upper Troposphere-Lower Stratosphere over the Lhasa within the Asian Summer Monsoon Anticyclone".REMOTE SENSING 14(2022).