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Analysis of Lake Stratification and Mixing and Its Influencing Factors over High Elevation Large and Small Lakes on the Tibetan Plateau

文献类型：期刊论文

作者Wang, Binbin6,7; Ma, Yaoming1,6,7,8,9,10; Wang, Yan2; Lazhu, Lu; Wang, Lu4; Ma, Weiqiang6,8,9; Su, Bob5
刊名WATER
出版日期2023-05-31
卷号15期号:11页码:17
关键词lake stratification epilimnion depth large and small lake high-elevation lakes Tibetan Plateau
DOI10.3390/w15112094
通讯作者Wang, Binbin(wangbinbin@itpcas.ac.cn) ; Ma, Yaoming(ymma@itpcas.ac.cn)
英文摘要Lake stratification and mixing processes can influence gas and energy transport in the water column and water-atmosphere interactions, thus impacting limnology and local climate. Featuring the largest high-elevation inland lake zone in the world, comprehensive and comparative studies on the evolution of lake stratification and mixing and their driving forces are still quite limited. Here, using valuable temperature chain measurements in four large lakes (Nam Co, Dagze Co, Bangong Co, and Paiku Co) and a "small lake" adjacent to Nam Co, our objectives are to investigate the seasonal and diurnal variations of epilimnion depth (E-p, the most important layer in stratification and mixing process) and to analyze the driving force differences between "small lake" and Nam Co. Results indicate that E-p estimated by the methods of the absolute density difference (<0.1 kg m(-3)) from the surface and the Lake-Analyzer were quite similar, with the former being more reliable and widely applicable. The stratification and mixing in the four large lakes showed a dimictic pattern, with obvious spring and autumn turnovers. Additionally, the stratification form during heat storage periods, with E-p quickly locating at depths of approximately 10-15 m, and, after that, increasing gradually to the lake bottom. Additionally, the diurnal variation in E-p can be evidenced both in the large and small lakes when temperature measurements above 3 m depth are included. For Nam Co, the dominant influencing factors for the seasonal variation of E-p were the heat budget components (turbulent heat fluxes and radiation components), while wind speed only had a relatively weak positive correlation (r = 0.23). In the "small lake", radiation components and wind speed show high negative (r = -0.43 to -0.59) and positive (r = 0.46) correlation, with rare correlations for turbulent heat flux. These reported characteristics have significance for lake process modeling and evaluation in these high-elevation lakes.
WOS关键词EPILIMNION DEPTH ; TEMPERATURE ; CLIMATE ; VARIABILITY ; SHALLOW ; CO
资助项目National Natural Science Foundation of China[42075085] ; National Natural Science Foundation of China[91837208] ; National Natural Science Foundation of China[41830650] ; Second Tibetan Plateau Scientific Expedition and Research Program[2019QZKK0103] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA20060101] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[2022069]
WOS研究方向Environmental Sciences & Ecology ; Water Resources
语种英语
出版者MDPI
WOS记录号WOS:001006417900001
资助机构National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research Program ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences
源URL[http://ir.igsnrr.ac.cn/handle/311030/194894]  
专题中国科学院地理科学与资源研究所
通讯作者Wang, Binbin; Ma, Yaoming
作者单位1.Chinese Acad Sci, China Pakistan Joint Res Ctr Earth Sci, Islamabad 45320, Pakistan
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China
3.Tibet Univ, Coll Sci, Res Ctr Ecol, Lhasa 850000, Peoples R China
4.Hebei Prov Tangshan Caofeidian Meteorol Bur, Tangshan 063000, Peoples R China
5.Univ Twente, Fac Geoinformat Sci & Earth Observat, NL-7500 AE Enschede, Netherlands
6.Chinese Acad Sci, Inst Tibetan Plateau Res, State Key Lab Tibetan Plateau Earth Syst Resources, Beijing 100101, Peoples R China
7.Natl Observat & Res Stn Qomolongma Special Atmosph, Dingri 858200, Peoples R China
8.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
9.Lanzhou Univ, Coll Atmospher Sci, Lanzhou 730000, Peoples R China
10.Chinese Acad Sci, Kathmandu Ctr Res & Educ, Beijing 100101, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Binbin,Ma, Yaoming,Wang, Yan,et al. Analysis of Lake Stratification and Mixing and Its Influencing Factors over High Elevation Large and Small Lakes on the Tibetan Plateau[J]. WATER,2023,15(11):17.
APA Wang, Binbin.,Ma, Yaoming.,Wang, Yan.,Lazhu, Lu.,Wang, Lu.,...&Su, Bob.(2023).Analysis of Lake Stratification and Mixing and Its Influencing Factors over High Elevation Large and Small Lakes on the Tibetan Plateau.WATER,15(11),17.
MLA Wang, Binbin,et al."Analysis of Lake Stratification and Mixing and Its Influencing Factors over High Elevation Large and Small Lakes on the Tibetan Plateau".WATER 15.11(2023):17.

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来源：地理科学与资源研究所

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