气候变化领域集成服务门户(CCPortal): Evaluation of ten methods for estimating evaporation in a small high-elevation lake on the Tibetan Plateau

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DOI	10.1007/s00704-018-2539-9
	Evaluation of ten methods for estimating evaporation in a small high-elevation lake on the Tibetan Plateau
	Wang, Binbin; Ma, Yaoming; Ma, Weiqiang; Su, Bob; Dong, Xiaohua
通讯作者	Wang, BB (通讯作者)
发表日期	2019
ISSN	0177-798X
EISSN	1434-4483
起始页码	1033
结束页码	1045
卷号	136 期号:3-4
英文摘要	To quantify lake evaporation and its variations in time, ten methods for estimating evaporation at a temporal resolution of 10days over a small high-elevation lake in the Nam Co lake basin of the Tibetan Plateau (TP) were evaluated by using eddy covariance (EC) observation-based reference datasets. After examination of the consistency of the parameters used in the different methods, the ranking of the methods under different conditions are shown to be inconsistent. The Bowen ratios derived from meteorological data and EC observations are consistent, and it supports a ranking of energy-budget-based methods (including the Bowen ratio energy budget, Penman, Priestley-Taylor, Brutsaert-Stricker and DeBruin-Keijman methods) as the best when heat storage in the water can be estimated accurately. The elevation-dependent psychometric constant can explain the differences between the Priestley-Taylor and DeBruin-Keijman methods. The Dalton-type methods (Dalton and Ryan-Harleman methods) and radiation-based method (Jensen-Haise) all improve significantly after parameter optimization, with better performance by the former than the latter. The deBruin method yields the largest error due to the poor relationship between evaporation and the drying power of the air. The good performance of the Makkink method, with no significant differences before and after optimization, indicates the importance of solar radiation and air temperature in estimation of lake evaporation. The Makkink method was used for long-term evaporation estimation due to lack of water temperature observations in lakes on the TP. Lastly, long-term evaporation during the open-water period (April 6 to November 15 from 1979 to 2015) were obtained; the mean bias was only 6%. A decreasing-increasing trend in lake evaporation with a turning point in 2004 was noted, and this trend corresponds to the published decreasing-increasing trend in reference evapotranspiration on the Tibetan Plateau and can be explained by variations in related meteorological variables.
关键词	NAM CO BASIN REFERENCE EVAPOTRANSPIRATION BALANCE OBSERVATIONS PAN EVAPORATION TURBULENT FLUX SHALLOW LAKE WATER HEAT ENERGY ABUNDANCE
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000467151000018
来源期刊	THEORETICAL AND APPLIED CLIMATOLOGY
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/259544
推荐引用方式 GB/T 7714	Wang, Binbin,Ma, Yaoming,Ma, Weiqiang,et al. Evaluation of ten methods for estimating evaporation in a small high-elevation lake on the Tibetan Plateau[J]. 中国科学院青藏高原研究所,2019,136(3-4).
APA	Wang, Binbin,Ma, Yaoming,Ma, Weiqiang,Su, Bob,&Dong, Xiaohua.(2019).Evaluation of ten methods for estimating evaporation in a small high-elevation lake on the Tibetan Plateau.THEORETICAL AND APPLIED CLIMATOLOGY,136(3-4).
MLA	Wang, Binbin,et al."Evaluation of ten methods for estimating evaporation in a small high-elevation lake on the Tibetan Plateau".THEORETICAL AND APPLIED CLIMATOLOGY 136.3-4(2019).