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

文献类型：期刊论文

作者Zhang, Kun1,2; Wang, Feifei1,2; Weng, Ningquan1,2; Wu, Xiaoqing1,2; Li, Xuebin1,2; Luo, Tao1,2
刊名REMOTE SENSING
出版日期2022-08-01
卷号14
关键词Tibetan Plateau optical turbulence Asian summer monsoon anticyclone upper troposphere-lower stratosphere
DOI10.3390/rs14164104
通讯作者Luo, Tao(luotao@aiofm.ac.cn)
英文摘要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.
WOS关键词TIBETAN PLATEAU ; BOUNDARY-LAYER ; PARAMETERIZATION ; SIMULATIONS ; ATMOSPHERE ; TRANSPORT ; CO
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]
WOS研究方向Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
语种英语
WOS记录号WOS:000846581200001
出版者MDPI
资助机构Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/131840]  
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
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).

入库方式： OAI收割

来源：合肥物质科学研究院

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