Arid
DOI10.1029/2019WR026570
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
ISSN0043-1397
EISSN1944-7973
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
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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).
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