干旱区生态环境知识资源中心(Arid): Determinants of the Asymmetric Parameter in the Generalized Complementary Principle of Evaporation

Arid

DOI	10.1029/2019WR026570
	Determinants of the Asymmetric Parameter in the Generalized Complementary Principle of Evaporation
	Wang, Liming; Tian, Fuqiang; Han, Songjun; Wei, Zhongwang
通讯作者	Tian, FQ
来源期刊	WATER RESOURCES RESEARCH
ISSN	0043-1397
EISSN	1944-7973
出版年	2020
卷号	56 期号:9
英文摘要	The complementary principle, which was first proposed by Bouchet (1963), illustrates a complementary relationship among the actual evaporation, the potential evaporation, and the apparent potential evaporation. It has generated increasing attention for estimating evaporation by using only routinely observed meteorological variables (radiation, wind speed, air temperature, and humidity) without complex surface property parameters. However, this principle still poses great challenges because of the underlying uncertainties in estimating its critical parameter, namely, asymmetric parameterb. In this study, we adopted a sigmoid generalized complementary function and utilized the eddy covariance (EC) data from 217 sites around the world to determinebvalues in different ecosystems and their correlation with environmental factors. We foundbhas a mean value of 6.01 +/- 0.08. The asymmetric parameterbis small in dry regions (i.e., the desert ecosystem, 0.42 +/- 0.02) and increases as the land surface wetness improves. The ecosystem mean air temperature and vapor pressure deficit have negative correlations withb(Pearson correlation coefficients are -0.57 and -0.52, respectively), and the mean soil water content has a positive correlation withb(0.69). Besides, the sigmoid function has a favorable capability in estimating evaporation no matter based on the site-specificbvalues or the ecosystem meanbvalues. The ecosystem meanbvalues given in the current study also perform acceptably in the independent verifications, indicating these values can be applied extendedly for regional and global studies.
英文关键词	evaporation sigmoid generalized complementary function asymmetric parameter Priestley-Taylor coefficient ecosystem types environmental factors
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000578452200057
WOS关键词	ADVECTION-ARIDITY APPROACH ; EVAPO-TRANSPIRATION ; EVAPOTRANSPIRATION ; WATER ; MODEL ; MANAGEMENT ; RUNOFF ; CARBON ; PLANT ; SOIL
WOS类目	Environmental Sciences ; Limnology ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources
来源机构	清华大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/326795
作者单位	[Wang, Liming; Tian, Fuqiang] Tsinghua Univ, Dept Hydraul Engn, State Key Lab Hydrosci & Engn, Beijing, Peoples R China; [Han, Songjun] China Inst Water Resources & Hydropower Res, State Key Lab Simulat & Regulat Water Cycle River, Beijing, Peoples R China; [Wei, Zhongwang] Sun Yat Sen Univ, Sch Atmospher Sci, Guangdong Prov Key Lab Climate Change & Nat Dis, Guangzhou, Peoples R China; [Wei, Zhongwang] Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai, Peoples R China
推荐引用方式 GB/T 7714	Wang, Liming,Tian, Fuqiang,Han, Songjun,et al. Determinants of the Asymmetric Parameter in the Generalized Complementary Principle of Evaporation[J]. 清华大学,2020,56(9).
APA	Wang, Liming,Tian, Fuqiang,Han, Songjun,&Wei, Zhongwang.(2020).Determinants of the Asymmetric Parameter in the Generalized Complementary Principle of Evaporation.WATER RESOURCES RESEARCH,56(9).
MLA	Wang, Liming,et al."Determinants of the Asymmetric Parameter in the Generalized Complementary Principle of Evaporation".WATER RESOURCES RESEARCH 56.9(2020).