气候变化领域集成服务门户(CCPortal): Contrasting hydrological and thermal intensities determine seasonal lake-level variations - a case study at Paiku Co on the southern Tibetan Plateau

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DOI	10.5194/hess-25-3163-2021
	Contrasting hydrological and thermal intensities determine seasonal lake-level variations - a case study at Paiku Co on the southern Tibetan Plateau
	Lei, Yanbin; Yao, Tandong; Yang, Kun; Ma, Yaoming; Bird, Broxton W.
通讯作者	Lei, YB (通讯作者)
发表日期	2021
ISSN	1027-5606
EISSN	1607-7938
起始页码	3163
结束页码	3177
卷号	25 期号:6
英文摘要	Evaporation from hydrologically closed lakes is one of the largest components of the lake water budget; however, its effects on seasonal lake-level variations remain unclear on the Tibetan Plateau (TP) due to a lack of comprehensive observations. In this study, weekly lake evaporation and its effects on seasonal lake-level variations are investigated at Paiku Co on the southern TP using in situ observations of thermal structure and hydrometeorology (2015-2018). Lake evaporation from Paiku Co was estimated to be 975 +/- 142 mm during the ice-free period (May to December), characterized by low values of 1.7 +/- 0.6 mm d(-1 )during the pre-monsoon season (May to June), high values of 5.5 +/- 0 6 mm d(-1) during the post-monsoon season (October to December), and intermediate values of 4.0 +/- 0.6 mm d(-1) during the monsoon season (July to September). There was a similar to 5-month lag between the maximum net radiation (June) and maximum lake evaporation (November). These results indicate that the seasonal pattern of lake evaporation from Paiku Co was significantly affected by the large lake heat storage. Contrasting hydrological and thermal intensities may play an important role in the large amplitude of seasonal lake-level variations at deep lakes like Paiku Co. High inflow from monsoon precipitation and glacier melting and moderate lake evaporation, for instance, drove rapid lake-level increase during the monsoon season. In contrast, high lake evaporation and reduced inflow caused lake level to decrease significantly during the post-monsoon season. This study implies that lake evaporation may play an important role in the different amplitudes of seasonal lake-level variations on the TP.
关键词	ENERGY-BALANCE GREAT SLAVE NAM CO MOUNTAIN LAKE WATER-LEVEL EVAPORATION VARIABILITY TEMPERATURE BUDGET FEATURES
语种	英语
WOS研究方向	Geology ; Water Resources
WOS类目	Geosciences, Multidisciplinary ; Water Resources
WOS记录号	WOS:000662168300001
来源期刊	HYDROLOGY AND EARTH SYSTEM SCIENCES
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/260413
推荐引用方式 GB/T 7714	Lei, Yanbin,Yao, Tandong,Yang, Kun,et al. Contrasting hydrological and thermal intensities determine seasonal lake-level variations - a case study at Paiku Co on the southern Tibetan Plateau[J]. 中国科学院青藏高原研究所,2021,25(6).
APA	Lei, Yanbin,Yao, Tandong,Yang, Kun,Ma, Yaoming,&Bird, Broxton W..(2021).Contrasting hydrological and thermal intensities determine seasonal lake-level variations - a case study at Paiku Co on the southern Tibetan Plateau.HYDROLOGY AND EARTH SYSTEM SCIENCES,25(6).
MLA	Lei, Yanbin,et al."Contrasting hydrological and thermal intensities determine seasonal lake-level variations - a case study at Paiku Co on the southern Tibetan Plateau".HYDROLOGY AND EARTH SYSTEM SCIENCES 25.6(2021).